This handbook serves a s a workplace s a f e t y a n d health Tool Box Talkresource for our team members who are involved in marine construction. Thisbook highlights general safety precautions to ensure safe practice of our siteoriented operations. This handbook is being developed to assist ou r t ea mme mb ers and worke rs to gain and to better understand of our dailywork related safety precautions, their roles and responsibilities, good and badpractices for d ai l y op era t ion s .

This handbook is prepared for awareness and informational purposes.

SAFETY IS A VERY FRAGILE THING.

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TOOLBOX TALKSTABLE OF CONTENTS

Cold-Related Safety Precautions............................................................................................................5Driver Safety...............................................................................................................................................6Ear Protection ............................................................................................................................................8Electrical Hazards ......................................................................................................................................9Extension Cord Safety..............................................................................................................................10Eye Protection ............................................................................................................................................11Fall Protection ............................................................................................................................................13Forklift Safety...............................................................................................................................................14General Safety is Everyone’s Responsibility..........................................................................................16Hand Held Tools.........................................................................................................................................17Handling Compressed Gases/Gas Cylinders........................................................................................18Explosive Act and Gas cylinder Rules......................................................................................19Heat-Related Illnesses.................................................................................................................................21Importance of Fire Extinguishers .............................................................................................................22Basic fire flow formula..............................................................................................................23Ladder Safety ................................................................................................................................................25Lockout/Tagout............................................................................................................................................26Maintaining a Clean Job-Site......................................................................................................................27Overhead Power Lines...............................................................................................................................28Personal Protective Equipment ................................................................................................................29Portable Electric Tools...............................................................................................................................30Preventing Back Injuries .............................................................................................................................31Scaffolding......................................................................................................................................................32Silica Precautions .........................................................................................................................................33Stairways and Openings .............................................................................................................................34Short cuts...................................................................................................................................37Trenching Safety...........................................................................................................................................38Portable Grinding Operations...............................................................................................39Horse Play................................................................................................................................40Signalling Techniques............................................................................................................ .41Barrication Tape......................................................................................................................43Horizontal Life Line.................................................................................................................44Industrial safety belt and harness specification.............................................46Life Buoy....................................................................................................................................48Suggested earthing Specification..............................................................................................50Diving /Under water survey.......................................................................................................51Tri Pod Rig/PVD Rig..................................................................................................................55Illumination...................................................................................................................................57Welding and Cutting......................................................................................................................58The inspection of wire rope............................................................................................................62Injury resulting from slip/trip/fall..................................................................................................70Banksman and signallers...............................................................................................................73How to read your tyre size ..........................................................................................................75Basic Information of Marine piling................................................................................................78Calculation of pp rope breaking strength and SWL........................................................................86Schedule charges for Disabilities.....................................................................................................87Accident Investigation 6wh Questions............................................................................................89PEP Talk Format...............................................................................................................................90

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COLD-RELATED SAFETY PRECAUTIONSDuring the winter months construction workers face an additional occupational hazard - exposure to the cold.Some health problems can arise including frostbite, trench foot and hypothermia.

FrostbiteOccurs when skin tissue actually freezes and cell damage results. Fingers, toes, cheeks, nose, and ears are primarilyaffected. The symptoms of frostbite include an uncomfortable sensation of coldness; there may be a tingling,stinging, or aching feeling followed by numbness. First aid includes treating affected areas with warm water, Becareful to avoid rubbing frostbitten areas because this can lead to greater tissue injury. If there is a chance forrefreezing, do not rewarm the affected areas.

Trench footTrench foot may be caused by long and continuous exposure to a wet and cold environment or immersion inwater. Symptoms include a tingling and/or itching sensation, pain, and swelling. Blisters may form and be followedby death of skin tissue and ulceration. First aid treatment for trench foot is similar to the treatment for frostbite,and includes: moving the victim to a warm area; treating the affected part with warm water (102°-110°F) or warmpacks; arranging bed rest in a warm environment; and obtaining medical assistance as soon as possible.

HypothermiaThe progressive loss of body heat with prolonged exposure to cold defines hypothermia. Body heat loss isaccelerated more rapidly when a person is wet because of sweat or working in a damp environment. The firstsymptoms are uncontrollable shivering and feeling of cold. As the body's temperature continues to drop, anindividual can become confused, careless, and disoriented. Individuals experiencing mild hypothermia should bemoved to a warm, dry shelter. Removing wet clothing and applying warm blankets for insulation minimizes furtherheat loss. Warm, nonalcoholic, caffeine-free drinks may be offered. More severe cases of hypothermia requireintensive medical care.

Preventing Cold-Related Disorders Dress appropriately. Wear s w e a t e r . m o n k y c a p , F u l l s l e e v e w i n t e r j a c k e t , w e a r

a middle layer of wool, and suitable warmest garments. Keep a change of clothes available. Protect your feet, hands, head, and face. Keep the head covered (up to 40 percent of body heat can be

lost when the head is exposed). Wear footgear that protects against cold and dampness. Avoid wearing dirty or greasy clothing because such garments have poor insulating properties. Provide a heated shelter for workers who experience prolonged exposure to the equivalent wind-chill

temperature of 20°F or less and shield work areas from windy conditions. Use thermal insulating material on the handles of equipment when temps drop below 30°F. Allow individuals to set their own pace, work in pairs and take extra work breaks when needed. Avoid activities, whenever possible, that lead to heavy perspiration. Shift as many outdoor activities as feasible to the inside; select the warmest hours of the day to work

outside. Minimize activities requiring sitting or standing in a cold environment for long periods of time. Keep energy levels up and prevent dehydration by consuming warm, sweet, caffeine-free, nonalcoholic

drinks and soup. Seek warm shelter following these symptoms: heavy shivering, an uncomfortable sensation of coldness,

severe fatigue, drowsiness, or euphoria.

DISCUSSION QUESTIONS What are some steps you can take to stay warm and safe when working in cold temperatures? What should you do if you have any symptoms of cold related illnesses?

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DRIVER SAFETY

Many motorists falsely assume that trucker drivers can see the road better because they sit twice as high as thedriver of a car. While trucker drivers do enjoy a better forward view and have bigger mirrors, they still haveserious blind spots.

Rear blind spotsUnlike cars, trucks have deep blind spots directly behind them. The truck driver can't see your car in this positionand your own view of traffic flow is severely reduced. Following too closely greatly increases the chance of a rear-end collision with a truck.

Side blind spotsTrucks have much larger blind spots on both sides of their vehicles than passenger vehiclein these blind spots for any length of time, truck drivers can’t see you. Motorists lingering

s). When you driveese blind spots

increase the chances of a crash. An excellent rule of thumb for motorists sharing the road with a truck is, "If youcan't see the truck driver in his side mirror, he can't see you."

Truck and van drivers Check to see that your mirrors are properly adjusted and clean before you leave. Get help, if necessary. Add blind spot mirrors where possible. When backing, always get out and scout the area for obstructions, pedestrians, etc. Again, get help where

possible. Try not to rely solely on your mirrors. Always remembers three driving hazards a}Roll Over b}Parking Hazards C}Maintena ce Hazards

Top ten tips for driving in a work zone1. Slow down! Slower speeds save lives.2. Turn on your headlights, beacon light,3. Put your cell phone down.4. Turn o vehic les back light , park ing l ight, r everse horn which is requir ed .5. Don’t drink or drive with influence of alcohol.6. Keep both hands on the wheel.7. Don’t drive aggressively.8. Obey work zone directio9. Watch for work zone ac

afety rules, traffic rules and directions and merge early., surroundings workers, machinery ,and other vehicles movement.

10. Pay extra attention driving through work zones after dark, fog, heavy rain and dust full areas.HT tower lines,Gas pipe lines.

DISCUSSION QUESTIONS Where are blind spots on larger trucks located? What are some things to keep in mind when driving a truck or van? What are three safety tips to follow when driving in a work zone?

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Inside the Vehicle1. Check Seat Belts2. Check Mirrors3. Check horn, head lights, blinkers, and emergency flashers & wipers, reverse horn.4. Verify backup alarm is working5. Check fuel gauges.

Pre-Trip & Post Trip Inspection

Take a walk around your vehicle.1. Windows clean?2. Lights/signals clean & working.3. Tires properly inflated / tread wear.04. Fluid leaks on the ground.5. Check the level of coolant in radiator.6. Check engine oil, steering fluid and hydraulic fluid.7. Check the battery.8. Report any broken or defective equipment.9. Verify back up alarm is audible!.10. Check belts! Report any worn or loose belts.

At 60 kph one travels 17 meters

• At 80 kph, 22 meters per second.• At 100 kph, 28 meters per second.

second;

NB: Alcohol, drugs, fatigue, food, illness can affect your Reaction Time thus increasing your stoppingdistances.

Maintain Safety distance should not be less than 2 seconds in a light vehicle and 4 SECONDS forlogistics vehicle;Speed Stopping distance40 kph 28 m60 kph 58 m80 kph 100 m

Motor Vehicles Act, 1988 (Sec: 3) Necessity for driving license.

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EAR PROTECTIONImagine what it would be like to live without being able to hear! Hearing enables you to carry on a conversation,to enjoy your favourite music on your CD player at home or on your truck or car radio. On the job you canhear the back-up alarms on bi-directional earthmoving equipment, or the warning sound of a crane horn.

More than twenty million INDIANS suffer some measurable hearing loss and sixteen million workers are exposedto noise on the job that could damage their hearing.Employers to take measures to reduce exposure to noiselevels at or above 90 decibels. The intensity of a sound is measured in decibels (DB). A whisper measures about 20dB, our average speaking voice is 60 dB, a shop saw is 100 dB and a jet plane is 140 dB.

Many areas around the job site have high noise levels and everyone needs to take the proper steps in preventinginjury to their hearing. First we can try to engineer the noise away by putting up sound barriers or enclosingcertain processes. Second, the company can schedule workers so they spend less time around high noiseoperations. Depending on the circumstances, these two options may not be possible to implement but the thirdthing we can do anywhere, anytime -- wear hearing protection. Different shapes sizes are available -- ear plugs willgive you some protection, ear muffs provide you with better protection. To achieve maximum protection youshould use both.

Your employer is responsible for requiring the wearing of hearing protection in all operations where there isexposure to high noise levels. As an employee, your responsibility is to obey warning signs that tell you hearingprotection is required - use common sense -- if the noise is loud, use protection.

Both loud and impulse noise can slowly destroy your hearing. Wearing protection is your best bet against hearingloss.

DISCUSSION QUESTIONS Are there instances on this job site where noises seem particularly loud? What types of hearing protection are available to you?

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System Voltage 11-66 kV 110-132 kV 220 kV 400 kV 800 kVLow & medium 2.44 3.05 4.58 5.49 7.9411-66 kV 2.44 3.05 4.58 5.49 7.94110 – 132kV 3.05 3.05 4.58 5.49 7.94220 kV 4.58 4.58 4.58 5.49 7.94400 kV 5.49 5.49 5.49 5.49 7.94800 kV 7.94 7.94 7.94 7.94

ELECTRICAL HAZARDSMany people mistakenly think that 110 volts or electricity can't seriously injure or kill a person. However, lowvoltage electricity can be extremely dangerous, particularly if you use portable electric tools. One cause of electricshock when using portable electric tools is the failure of the insulation between the current-carrying part and theframe of the tool. When insulation fails, fatal electric shock, severe burns or even a fall from one level to anothermay result.Electricity always tries to reach a ground potential and will always take the path of least resistance. If the outermetal shell of a defective tool becomes energized, the operator sets up a direct path through his own bodybetween the energized tool and the ground itself. The ground can be the earth or it could be pipes or steelbuilding structures that are in contact with the earth. Body resistance is lowered when you work in wet areas orsweat heavily; electricity can then flow easily through vital regions of the body.When you work in a wet area, near a water pipe, grounded tank, or reinforcing rods that may be grounded, beextra careful to keep yourself as dry as possible. Stand on a wooden platform or use rubber boots. In places wheretools may become wet, only use tools that are designed especially for that type of service.

Keep portable electric tools in good condition through the use of a regular inspection program. It is yourresponsibility to inspect your tools prior to use. Check tools and cords and turn in any that needs repair as soonas you see a defect.Inspections Ensure all tools and equipment are in good condition. Prohibit work on energized electrical circuits. Prohibit the use of frayed or worn electrical cords or cables. Check portable electric tools before use to ensure that the cord and plug are in good condition. Ensure that broken or damaged tools and equipment are removed from service. Ensure that portable electrical tools and equipment are either grounded or of the doubleinsulated type. Ensure that each 15 or 20 ampere, 120 volt AC receptacle, not part of the permanent

wiring of the building, is protected by either ground-fault circuit interrupters or an assuredequipment grounding program.

Ensure that electrical equipment and cords used in wet or damp locations are approved for wetand damp locations.

Ensure that listed, labelled or certified equipment is used in accordance with the instructionsincluded in the listing, labelling or certification.

Ensure that when a circuit breaker is removed from a circuit breaker panel, it is replacedwith either a breaker or a blank.

Ensure that unused openings in electrical boxes are effectively closed. Prohibit bypassing any protective system or device designed to protect employees from

contact with electrical current. Ensure that electrical cords are protected from physical damage. Ensure electrical equipment is used only as approved and listed.

DISCUSSION QUESTIONS What path does electricity usually take? What should you do if you work in a wet area with power tools? What are three inspections that are recommended?

STATUTORY CLEARNCESMinimum Clearances (in meters) between Lines when crossing each other

EXTENSION CORD SAFETYNothing about an extension cord suggests danger - there are no moving parts, no flames, no noise. It is harmlesslooking, yet it can be extremely dangerous if misused.

Good extension cords should be used all the time - heavy duty rated cords that are approved and testedby Underwriters Laboratories. Cords that show wear should be repaired or thrown out.

There are some hazards in using extension cords that only you can control. First of all, no extension cord canstand rough usage. If you kink it, knot it or crush it and even bend it, you can break the insulation, which may causea short circuit and a fire or even an electric shock.

Most cords used carry regular 110-volt electricity. Now, no doubt at some time you have received a shock from a110-volt line without serious harm - just a great tingling sensation. But even a 10-volt current cankill. It is not harmless. The conditions, however, must be right. The right conditions may consist of making a goodconnection with a live wire carrying a 110 voltage with wet or sweaty hands, and standing or lying on theground, a wet floor, a water pipe or another electrical connection.

So, protect the extension cords you use. Coil them in large loops, not in close kinked coils. Don’t bend themunnecessarily. Don't repair them yourself.

In special situations, special types of cords are needed. Some cords are water-resistant, others are not. Some areinsulated for heat resistance; others are designed to stand the action of solvents and other chemicals that may bepresent.

These rules should be applied for the safe use of extension cords: Inspect all extension cords at the beginning of each workday for any signs of wear or damage. Remove any

worn or damaged cords from service immediately. Before each use, check the cord for the presence of a ground blade on the male end of the cord. Handle the cord gently, avoiding strain, kinking, crushing or cutting. String it where it will not be hit or tramped on. If moisture, heat or chemicals are present, be sure your cord is the proper type to resist the conditions

that are present. Extension cords should not be used as ropes to raise and lower tools and materials.

DISCUSSION QUESTIONS Where do our tagged and unused tools and extension cords go? Do you know what the proper storage is for extension cords?

EYE PROTECTION.

Take time to select the right kindTo protect the eyes from nails, wood chips, metal shavings, dusts, acids, and construction relatedflying particles and chemicals, wear the appropriate eye protection. Depending on the job, you mightwear safety glasses, goggles or a full-face shield. Today, we have eye protection available that will suitevery type of exposure. People who wear glasses with corrective lenses may need prescription safety glasses orgoggles that can be worn over their regular glasses for protection against damage or breakage.

Basically, there are four types of particles that cause eye injuries on the job:

Unidentified flying objects - These microscopic objects consist of dust and particles floating around in theair, generally by wind, equipment or cleaning operations. When working in dusty conditions,(CementGodown,cement feeding point) wear eye protection. Even a small speck in the eye can leadto trouble.

Particles resulting from chipping, grinding, sawing, brushing, hammering or usingpower tools - These particles move at an amazing speed and strike with the force of a bullet.Wear eye protection any time overhead operations are performed. Some jobs may require safety goggles undera full face shield.

Invisible Hazards - You can’t see the injurious light rays generated by welding operations or laserbeams and their effects are often not felt until hours later. Wear the appropriate eye protection required whenusing this equipment; if you happen to be working nearby, don't look in the direction of welding arcs orwhere a laser beam is being used.

Liquids - Hot liquids, such as tar or asphalt, solvents, paint and solutions for cleaning masonry or metal cancause serious eye injury if splashed in your face. The use of proper eye protection, possibly a full face shield, isessential when transferring liquids between containers and when using caustic or acid cleaners.

When to use eye protectionThere are many operations on construction projects where it's mandatory for workers to wear eye protection.The following is only a partial list: Cutting construction materials with any type of power tool. Using pneumatic and powder-actuated nailguns. Using of manual impact tools, such as hammers. Chipping, sledging and hammering on metal, stone and concrete. Caulking, brushing, and grinding. Drilling, scaling and scraping. Gas welding, cutting, brazing, soldering. Electric arc welding and cutting, and other operations which subject the eyes to flying

particles, dust, hot liquids, molten substances, gases, fumes and liquids. Handling of acids, caustics and creosoted materials. Handling of hot tar.

EYE PROTECTION (con’t)

Some workers object to eye protection because it fogs up. Fogging occurs because sweat vaporizes and coats theinside of the lens. Wear a handkerchief or sweatband around your forehead to keep perspiration off your eyeprotection or use anti-fog eye protection or an anti-fog liquid coating.

DISCUSSION QUESTIONS Are there any operations on this construction project that would require safety glasses, goggles, or other

eye protection? Do you personally know of anyone who has had an eye injury because they were not wearing eye

protection? From which person in this company do we obtain our eye protection devices when needed?

FALL PROTECTIONFalls are one of the most devastating types of injuries on a job site. When fall protection is in place and usedproperly, falls and fall-related injuries can be prevented. There are several types of fall protection available;guardrail systems also aid in fall prevention.Fall prevention practices Assess the jobsite to determine if the walking and working surfaces have the strength and structural

integrity to safely support workers. Workers exposed to falling six feet or more from an unprotected side or edge should be protected

by a guardrail system, safety net system or personal fall arrest system.o A personal fall arrest system consists of an anchorage, connectors, body harness, and may

include a lanyard, deceleration device, lifeline or a suitable combination. Workers in a hoist area exposed to falls of six feet or more should be protected by either a guardrail

system or personal fall arrest system. Employees exposed to a floor opening more than six feet above lower levels should be protected by

personal fall arrest systems, covers or guardrail systems. Employees using ramps, runways and other walkways should be protected from falling six feet or more by

a guardrail system. Employees engaged in roofing activities on low-slope roofs with unprotected sides and edges six feet or

more above the lower level should be protected from falling by a guardrail system, safety net, personal fallarrest system, or a combination warning line system and guardrail system, warning line system and safetynet system, warning line system and personal fall arrest system, or warning line system and safetymonitoring system.

Employees engaged in roofing activities on steep roofs with unprotected sides and edges six feet or moreabove the lower level should be protected from falling by a guardrail system with toeboards, safety net orpersonal fall arrest system.

GuardrailsGuardrails protect you from falls that can seriously injure or even kill. The amount of protection guardrails providedepends on how they are constructed and maintained. Most guardrails are built of strong materials and are usuallysolid when first put up. However, guardrails often are abused, weakened, broken or removed and not replaced.Weakened guardrails are sometimes more dangerous than no guardrails at all because they give a false sense ofsecurity.As you go about your job Get into the habit of checking guardrails. If you discover a weakened or a missing rail or section, correct the situation if you can or report it so that

the hazard can be eliminated. If you bump a rail with material or equipment, check to see if it is weakened. If you discover a broken rail, upright or toeboard, repair it if you can. Otherwise, report it so that it can

be repaired. When repairing or replacing guardrails, use caution as you are exposed to the very danger that you are

providing protection against.

DISCUSSION QUESTIONS Is there a need to utilize fall protection on our job sites? What type of fall protection do you think is appropriate for this job site? What should you do to help keep our job site safe from falls?

FORKLIFT SAFETY

Training and certification requirementsOnly trained and certified forklift operators are allowed to operate the forklift. The employer may create andimplement a written forklift operator training program and perform training internally (operating rules should beposted and enforced). Operator recertification is required every 3 years.

Picking up a load "Square up" on the center of the load and approach it straight on with the forks in the travel position;

stop when the tips of your forks are about a foot from the load. Level the forks and slowly drive forward until the load is resting against the backrest of the mast. Lift the load high enough to clear whatever is under it. Back up about one foot, then slowly and evenly tilt the mast backwards to stabilize the load.

Putting a load down "Square up" and stop about one foot from the desired location. Level the forks and drive to the loading spot; slowly lower the load to the floor. Tilt the forks slightly forward so that you do not hook the load. When the path behind you is clear of obstructions, back straight out until the forks have cleared the

pallet.

Stacking one load on top of another Stop about one foot away from the loading area and lift the mast high enough to clear the top of the

stack. Slowly move forward until the load is squarely over the top of the stack. Level the forks and lower the mast until the load is no longer supported by the forks. Look over both shoulders for obstructions and back straight out if the path is clear.

Lifting Do not exceed the lift capacity of the forklift; read the lift capacity plate on the forklift if you are unsure.

Follow the manufacturer's guidelines concerning changes in the lift capacity before adding an attachment. Lift the load an inch or two to test for stability; if the rear wheels are not in firm contact with the floor,

take a lighter load or use a forklift that has a higher lift capacity. Do not raise or lower a load while you are en route; wait until you are in the loading area and have

stopped before raising or lowering the load. After picking up a load, adjust the forks so that the load is tilted slightly backward for added stability.

Raise the forks an additional two inches to avoid hitting or scraping the ramp surface as you approach theramp.

Loading docks Keep the forklift clear of the dock edge while vehicles are backing up to the dock. Do not begin loading or unloading until the supply truck has come to a complete stop, the engine has

been turned off, the dock lock has been engaged and the wheels have been chocked. Do not drive the forklift into the truck until the bridge or dock plate has been attached. Do not drive the forklift into a truck bed or onto a trailer that has "soft" or loose decking or other

unstable flooring. Drive straight across the bridge plates when entering or exiting the trailer and use dock lights or

headlights when working in a dark trailer.

FORKLIFT SAFETY (con’t)

Safe Practices Ensure substantial overhead protective equipment is provided on high lift rider equipment. Ensure each industrial truck has a warning horn, whistle or other device that can be

clearly heard above the normal noise in the area. Ensure the brakes on each industrial truck are capable of bringing the vehicle to a

complete and safe stop when fully loaded. Ensure the truck’s parking brake will prevent the vehicle from moving when unattended. Ensure that industrial trucks operating in hazardous areas (e.g., where flammable

gases or vapors, combustible dust or ignitable fibers may be present) are approvedfor such locations.

If industrial trucks with internal combustion engines operate in buildings or enclosed areas,carefully check to ensure such operations do not cause harmful concentration of dangerousgases or fumes.

Prohibit employees from riding on the lift truck unless a seat is provided; use seatbelts.Each rider must have a seat and not ride on sides or forks.

Do not remove passenger compartment guards or rollover protection devices; do notuse people as counterweights.

Do not use bare forks as a man-lift platform. Utilize a manufactured man-lift basket,securely attached to the forklift for the lifting of workers. Never move the forklift withpersonnel in the basket. The worker is to wear a harness secured to the basket at alltimes during the lift.

Approach railroad tracks at a 45° angle when driving the forklift. Steer the forklift wide when making turns and sound the forklift horn when

approaching blind corners, doorways or aisles to alert other operators andpedestrians.

DISCUSSION QUESTIONS Where are our forklift operating rules and procedures posted? Who is certified as a forklift operator on this jobsite?

GENERAL SAFETY IS EVERYONE’S RESPONSIBILITYSafety is everyone's responsibility! As an employee, you should:

Learn to work safely and take all rules seriously.Recognize hazards and avoid them.Report all accidents, injuries and illness to your supervisor immediately.Inspect tools before use to avoid injury.Wear all assigned personal protective equipment.

On the other hand, it is management's responsibility to:Provide a safe and healthy workplace.Provide personal protective equipment.Train employees in safe procedures and in how to identify hazards.

Everyone must be aware of potential hazards on the job:Poor housekeeping results in slips, trips and falls.Electricity can cause shocks, burns or fire if not handled properly.Poor material handling may cause back problems or other injuries.Tools and equipment can cause injuries if guards or protective devices are disengaged.

Always use the protections that are provided on the job:Guards on machines and tools keep body parts from contacting moving equipment.Insulation on electrical equipment prevents burns, shock and fire.Lockout/tagout assures equipment is de-energized before it is repaired.Personal protective equipment shields your body from hazards you may face on the job.

In case of emergency:Understand alarms and evacuation routes.Know how to notify emergency response personnel.Implement a procedure for leaving the scene safely so emergency personnel can do their job.Wipe up spills promptly and correctly.

Safety benefits everyone! By incorporating safety rules, employees avoid injury as well as illness from exposure tohazardous substances. With fewer injuries, a business can be more productive and profitable.

The welfare of the community is also enhanced by providing cleaner air and water and less chance of dangerousaccidents that can put lives and property at risk.

DISCUSSION QUESTIONSWhat are three things you can do to make our job site safer?What are three things management should do to make our job site safer?What are several potential job site hazards you should be aware of?

HAND HELD TOOLSKeep all hand tools in good condition. Check to be sure that safety devices are in place and in proper workingorder. Lubricate your tools on a regular schedule. Keep them sharp and they will help you perform your job safely.

Typical hand tools include hammers, wrenches, screwdrivers, hand saws, axes, hacksaws, shovels, rakes, come-a-longs, picks, sledge hammers, wheelbarrows, levels, knives, punches, chisels, pliers, etc. Each has a particular job todo and it's your responsibility to use the tool as the manufacturer designed it. Short cuts using the wrong tool willoften cause an accident. A perfect example of this is using a screwdriver to pry with when the right tool is a prybar.

When using hand tools remember to wear the proper personal protective equipment. If there is any potential foran eye injury, safety glasses are a must. Protect your hands by wearing gloves. Watch out for sharp pointed toolsas well as sharp edges on saws -- both will cause a nasty cut if handled improperly. If you have any question aboutwhat to wear ask your supervisor.

After you're done with a hand tool return it to the place it belongs. This may be your own tool box or belt, or itmay be back in the tool trailer or gang box. When you return it, place it properly so that the next person can pickit up without the possibility of injury. Should a tool get damaged take it out of service for repairs, and if it can't berepaired, dispose of it. Defective tools are dangerous and should not be used.

Inspections Replace hand tools, such as chisels and punches,that develop mushroomed heads. Replace hammers, axes and similar tools that have broken or fractured handles. Ensure tool handles are wedged tightly in the head of all tools. Ensure tool’s cutting edges are kept sharp. Ensure appropriate safety glasses, face shields, etc. are used while using hand or powered tools or

equipment that might produce flying materials or is subject to breakage

Hand tools make your job much easier. Care for them properly and use them wisely.

DISCUSSION QUESTIONS Have you checked your toolbox recently for damaged tools? Do you always use the right tool for the job, even if the job takes only a few seconds?

HANDLING COMPRESSED GASES/GAS CYLINDERSYou probably can’t find many job areas where oxygen and acetylene cylinders are not on hand for cutting andwelding. In many cases, these cylinders aren’t properly stored and handled all the time. They are used so often thatit's easy to be careless with them.To help prevent accidents Use a cradle or cage when hoisting cylinders with a crane. Close valve and release gas from the regulator before a regulator is removed. Be sure the regulators are removed and valve protection caps are on before moving cylinders and while

the cylinders are in storage. Keep cylinders upright and secured at all times. Close the valve on empty cylinders, put on the cap, and mark them "MT." Store oxygen cylinders at least 20 feet away from any fuel/gas cylinders, such asacetylene. Do not store propane cylinders inside any building. Do not use cylinders for rollers or supports. Do not tamper with the valves or safety devices Keep all cylinders, cylinder valves, couplings, regulators, hoses and apparatuses free of oily or greasy

substances. Never crack a fuel gas cylinder valve near sources of ignition. Examine compressed gas cylinders regularly for signs of defects, deep rusting or leakage. Only use pressure-reducing regulators for the gas and pressures for which they are intended. Open cylinder valves slowly and carefully. When a cylinder wrench is needed on the valve, keep the wrench nearby to turn off the valve quickly if

necessary. Use red to identify the acetylene (and other fuelgas) hose, green for oxygen hose,

and black for inert gas and air hose. Only qualified technicians should clean or repair a regulator. Do not tamper with the relief valve or remove it from a regulator. Read MSDS’s and train about fuel gases. Never allow oxygen to contact oil, grease or other flammable substances. Never use oxygen as a substitute for compressed air. Never use oxygen to dust off clothing, in pneumatic tools or for ventilation.

DISCUSSION QUESTIONS What is the procedure to prepare to move or store a gas cylinder? When gas cylinders are empty, how do we mark them and where are they stored? What colors identify the different hoses?

EXPLOSIVE ACT 1884 AND GAS CYLINDER RULES 2004 “Dissolvedacetylene cylinder” means a cylinder having a valve and with or without safety devices containing aporous mass, a solvent for the storage of dissolved acetylene and at least sufficient acetylene to saturate thesolvent at atmospheric pressure and at a temperature of +15Degre C;Explanation.-Acetone or any other solvent used shall not be capable of chemical reaction with the acetylenegas or with the porous mass or with the metal of the cylinder or valve;“Poisonous (toxic) gas” a gas which has a maximum allowable concentration in air for human respirationnot exceeding 100 mg/m absolute pressure;Additional requirements for dissolved acetylene gas cylinders— Dissolved acetylene gas cylindershall comply with following additional provisions, namely:-(i) The porous substance shall fill as completely as possible the cylinder into which the acetylene iscompressed.(ii) The porosity of the substance shall not exceed 92 per cent and in no case shall be less than 75 per cent.(iii) Any solvent used shall not be capable of chemical reaction with the acetylene gas or with the poroussubstance or with the metal of the cylinder.(iv) If acetone is used as a solvent it shall comply with the requirements of IS: 170, the quantity of acetoneincluding the gas in solution shall be such that the cylinder meets the requirements of additional testsspecified in IS: 7312.(v) The valves of the cylinders shall not contain more than 70 per cent copper in their composition.(vi) The pressure in the cylinder shall not exceed 16 kgf/cm2 at a temperature of15DegreeC.(vii) Every cylinder shall before being filled with porous mass be tested by hydrostatic pressure to a pressureof not less than 60 kgf/cm2. This pressure may be reduced to 53 kgf/cm2 if the cylinder is fitted with fusibleplug. No cylinder which shows a permanent stretch in excess of 7½ per cent of the total stretch sufferedduring hydrostatic stretch test shall be allowed.(viii) The safety relief devices if fitted, shall operate at a pressure of 53 kgf/cm or at a temperature of 100Degree + 4degreeC/–2degreeC.(ix) Every cylinder shall have permanently and conspicuously marked upon it or upon a brass plate soldered

to it the name of the manufacturer and the words“Acetylene properly compressed into porous substance” and shall bear the following markings, namely:-(a) Serial number and identification of manufacturer;(b) Number of the standard;(c) Test pressure;(d) The date of hydrostatic stretch test with code mark of the place where the test was carried out;(e) Date of filling of porous mass;(f) Water capacity’;(g) A symbol to indicate the nature of heat treatment;(h) Identification of porous mass and porosity percentage;(i) Tare weight (inclusive of valve);(j) Inspector’s official mark;(k) Maximum gas capacity.Examination of dissolved acetylene cylinders before filling: —Whenever a cylinder is charged withacetylene, it shall be subjected to a thorough visual examination in accordance with IS:8433, if the historyof the cylinder shows that it has not been subjected to such an examination within the previous two yearsand at the same time the valves shall be removed and the conditions of the porous substance at the neck ofthe cylinder ascertained:Provided that this period of periodical examination shall be one year in case the cylinders are filled withloose porous mass.

No licence needed for filling and possession in certain cases: —In Rule 43, no licenceshall be necessary for- (i) liquified petroleum gas when the total quantity of gas does not exceed 100 kg at a time;(ii) any other flammable but non-toxic gas when the total number of cylinders containing such gas doesnot exceed 25 or the total weight of gas does not exceed 200 kg., whichever is less, at a time;(iii) any non-flammable non-toxic gas when the total number of such cylinders does not exceed 200 at atime;(iv) any toxic gas when the total quantity of such cylinders does not exceed 5 at atime;(v) acetylene gas contained in cylinders in dissolved state when the total quantity of suchcylinder does not exceed 50 at a time

The following distances shall be kept clear at all times, between any building, public place,public road or any adjoining property which may be built upon and the storage shed used forthe storage of liquefied petroleum gas cylinder:Quantity of compressed gas in Cylinder Minimum distance to be kept clear

Kg. Metres0 --101 --101 -- 2000 32001 -- 3000 43001 -- 4000 54001 -- 6000 66001 -- 8000 7

8001 -- 10000 810001-- 12000 9

1200 -- 20000 12over 20000 15

Calibration. —Calibration of equipment shall be carried out at periods not exceeding thefollowing—(i) Working pressure gauge -1 month.(ii) Master pressure gauge- 6 months.(iii) Weighing equipment-checked by test weight daily when in service.(iv) Test weights – 2 years.

Identification colours specified in IS:4379 for industrial cylinders and IS:3933 for medical cylinders.

INDIAN ORIGIN-(a) CylindersWelded low carbon steel cylinders for low pressure liquefiable gases manufactured toIS:3196 Part 1, Part 2 & Part 4, IS:7142, auto LPG containers to IS:14899, DA cylindersto IS:7312 certified by Bureau of Indian Standards.

HEAT RELATED ILLNESSThere are a number of heat related illnesses including heat stroke, heat exhaustion and heat cramps.

Heat strokeThe most serious health problem for workers in hot environments is caused by the failure of the body's internalmechanism to regulate its core temperature. Sweating stops and the body can no longer rid itself of excess heat.Signs include mental confusion, delirium, loss of consciousness, convulsions or coma; body temperature of 106°For higher; hot dry skin which may be red, mottled or bluish. Victims may die unless treated promptly. Medical helpshould be called and the victim must be moved immediately to a cool area and his or her clothing soaked with coolwater. He or she should be fanned vigorously to increase cooling.

Heat exhaustionDevelops as a result of fluid loss through sweating when a worker has failed to drink enough fluids, take in enoughsalt or both. A worker with heat exhaustion still sweats, but experiences extreme weakness or fatigue, giddiness,nausea or headache. The skin is clammy and moist, the complexion pale or flushed, and the body temperaturenormal or slightly high. The victim should rest in a cool place and drink salted liquids.

Heat crampsPainful spasms of the bone muscles, are caused when workers drink large quantities of water but fail to replacetheir body’s salt loss. Cramps may occur during or after working hours and may be relieved by taking salted liquidsby mouth or saline solutions intravenously for quicker relief, if medically determined to be required.

First aid for most heat illnesses Act quickly and move the victim to a cool, shaded area to rest. Don’t leave the person alone. If symptoms include dizziness or light-headedness, lay the victim on his or her back and raise

his or her legs six inches to eight inches. If symptoms include nausea or upset stomach, lay the victim on his or her side. Loosen and remove heavy clothing. Have the person drink cool water (a cup every 15 minutes) unless sick to the stomach. Cool the person’s body by fanning and spraying with a cool mist of water or applying a wet cloth to the

person’s skin. Call emergency help if the person does not feel better in a few minutes.

Safe Practices Do heaviest work during coolest part of day and work people in pairs. Build up tolerance to the heat and the work activity slowly. Most people need two weeks to adjust. Drink plenty of cool water, about a cup every 15 minutes. Wear light, loose-fitting, breathable clothing. Take frequent short breaks in cool shaded areas to allow the body to cool down. Avoid eating large meals and drinking alcoholic or caffeinated beverages before hot work.

Risk Factors Taking certain medications. Check with your pharmacist to see if any medicines you are taking affect you

during hot work. A previous heat-induced illness. Personal protective equipment that can add to physical stress.

DISCUSSION QUESTIONS What are our company procedures for working in hot conditions? What are you supposed to do if you have symptoms of a heat related illness while working?

IMPORTANCE OF FIRE EXTINGUISHERSIn the event of a fire, the correct use of a fire extinguisher could mean the difference between suffering a minorloss or a major one. There are several things to consider when using fire extinguishers. You must know the classof fire involved and the correct type of fire extinguisher to use.Classes of fires and fire extinguishers

Class A fire: Involves ordinary combustibles such as paper, wood, cloth, rubber or plastics. Thecommon extinguishing media is water or dry chemical. These types of extinguishers are usually placed inand around buildings.

Class B fire: Flammable liquids, grease or gases are covered under this category.Common extinguishing media are foam, carbon dioxide or dry chemical. These types of extinguishers are usuallyfound in vehicles or mounted to or placed beside machinery, equipment and containers of flammable liquid.

Class C fire: Live electrical fires are class C fires. CO2 or dry chemical extinguishers should be used.However, the actual burning product may be class A items.

Class D fire: Burning materials include combustible metals such as magnesium and sodium. Specialextinguishing agents, approved by recognized testing laboratories, are needed when working with these metals.

Responding to firesWhen responding to a fire: Sound the fire alarm Call the local fire department immediately Follow your company's procedures on responding to fires

Attempt to fight the fire only if: You know the type of combustible material burning You have been trained to use the fire extinguisher correctly If the fire is still in the beginning stage. If the fire gets too large or out of control, evacuate immediately.

Remember P-A-S-S when using an extinguisherP - Pull. Pull the locking pin before using the fire extinguisher.A - Aim. Aim the fire extinguisher at the base of the fire; not at the flames or smoke.S - Squeeze. Squeeze the lever of the fire extinguisher to operate and discharge.S - Sweep. Sweep the fire extinguisher back and forth at the base of the fire to extinguish.(Most extinguishers will only allow about 10-seconds of extinguishing media.)Prevention is the key when it comes to fire fighting. Good housekeeping, proper storage procedures and safe workpractices will go a long way toward reducing the likelihood that a fire will destroy valuable property or injureeither you or a fellow employee.

DISCUSSION QUESTIONS What type(s) of fire extinguishers are located in your work area? How do you operate them? What is your company's policy on sounding an alarm and contacting the fire department? What kinds of flammables are most likely to create a fire danger at your jobsite? What type of fire extinguisher should be used on those flammables or combustibles?

Basic Formula:BASIC FIRE FLOW FORMULA

Needed Fire Flow (NFF) = Length X Width X Percentage of fire involvement3

Example:1. To calculate the total fire flow for an entire building involved in fire:

2.To calculate the needed fire flow for a portion of the building involved in fire. In thisexample 25% of the entire structure is involved in fire:

1 For additional floors, multiply the percent involved times the number of floors involved.

BASIC FIRE FLOW FORMULA

Exposures

Exposures are classified as internal (additional floors above the fire) or external (buildingsadjacent to the involved structure).

1. For internal exposures (additional floors), a constant factor of 25% is added for each

exposure (to a maximum of 5 floors) to Needed Fire Flow. Therefore the ExposureFormula is:

Length X Width+ 25% for each floor above the fire (maximum of 5 floors)3

This example shows the exposure of 2 additional floorsabove the fire (add 25% for each floor) to the NFF

2. For External Exposures (building adjacent to the involved structure), a constant factor of 25% isadded for each side that has an exposure. Therefore the Exposure Formula is:

Length X Width + 25% for each side with an exposure3

This example shows exposures on the B and C side of the structure (add 25% for each side with anexposure) to the NFF

LADDER SAFETYOne of the most commonly used, often abused, and least noticed piece of equipment on the josite may present amajor hazard – the ladder. Out of 150 construction accidents involving ladders, the following were principalcontributing factors:

Climbing or descending improperly Failure to secure the ladder at top and/or bottom Carrying objects while climbing or descending Structural failure of the ladder

Commercial ladders are constructed properly and are of sound material. However, after they have been in use fora while they may become damaged through abuse, rough handling while moving, being struck by heavy objects, etc.

Basic Ladder Safety InformationHazards - Be aware of broken or missing parts, energized electrical lines or equipment, ladders too short forwork height, weight limit rating too low, not the correct equipment for job.

Loads - Self-supporting (foldout) and non-self-supporting (leaning) portable ladders must support four times themaximum intended load; extra-heavy duty metal or plastic ladders must sustain 3.3 times the maximum intendedload.

Angle - Ladders should be set at the proper angle 75 degree. The base of a non-self-supporting commerciallymanufactured ladder should be one-quarter its length away from the wall or supporting structure.

Rung - Rungs, cleats or steps must be parallel, level and uniformly spaced and must be spaced between 10 inchesand 14 inches apart; spacing for extension trestle ladders must be 8 inches to 18 inches for the base, and 6 inchesto 12 inches on the extension section, shaped so that an employee’s foot cannot slide off. .Length of ladder (feet) over lap (feet)Up to and including 36 3Over 36 upto and including 48 4Over 48 and up to 60 5

Storage - Store ladders so they will not warp, sag or be damaged and secure them during transport.

Inspection - Check to ensure shoes and ladder are free of oil, grease, wet paint and other slipping hazards;warning labels are legible; spreader device can be locked in place and ensure area around the top and bottom ofladder is cleared of material.

Safe Practices Face ladder and hold on with both hands when climbing Carry tools on belt or use hand line to move tools and materials to your work area Hold on with one hand when performing work Never reach too far to either side or rear Do not climb higher than second step from top on a stepladder or third from the top on a straight ladder Never attempt to move, shift or extend ladder while in use Secure ladders at either the top or the bottom or use a spotter (someone at the bottom) to keep the

ladder stable

DISCUSSION QUESTIONS Have all workers been trained in the proper setup and use of ladders? Are the ladders on this job in good condition and are they properly used? Is the ground where the ladder is to be used stable? Are there ropes available on the site for securing the ladders and for use as hand lines?

LOCKOUT/TAGOUTLockout/Tagout (LOTO) is a way to ensure that electricity or other energy is not turned on (or released) whilesomeone is working on machinery. Simply turning off a power switch is not enough. You must de-energize(prevent equipment from starting or moving), lock it out, release stored energy (for instance, bleed air from apneumatic hose), and test to make sure the energy is off before working on the piece of equipment.

Lockout/Tagout Procedures Each piece of equipment or machinery should have its own LOTO procedures. Notify operators and supervisors that power is being disconnected or isolated. Prepare for isolation by checking for specific written procedures that state the shutdown and restart

process. Shut down by turning off the equipment. Separate all energy sources using proper isolating devices—like manual circuit breakers or disconnect

switches. Pushbuttons or selector switches cannot be the only way to de-energize. Equipment may have more than

one type of energy that needs to be isolated. Each worker who can be exposed to hazardous energy must be part of the LOTO process. Control stored energy (e.g., discharge capacitors or drain hydraulic lines). Verify equipment has been de-energized by trying to restart and using testing equipment (such as an

electric circuit tester). Only the worker who puts on a lockout or tagout device may remove it. When the work is finished, inspect to ensure all tools, mechanical restraints, and electrical devices have

been removed before you turn on power. Warn affected employees that power will be restored. If the LOTO job is interrupted for testing or positioning equipment, the procedures must start over from

the beginning.

DISCUSSION QUESTIONS Do you know what our lockout/tagout procedures are? Do you know how to complete the lockout/tagout procedure for equipment that you are individually

responsible for?

LOCK OUT LOCK OUT AND TAG OUT TAG OUT AND LOCK OU

MAINTAINING A CLEAN JOB-SITEMaintaining a neat and clean jobsite means different degrees of cleanliness and neatness to different people. Whatone person accepts as proper “housekeeping” may not be acceptable to someone else.

Clean job sites are influenced by two things: What we do or neglect to do and the weather. We can control mostconditions; others, we can be on the lookout for and guard against or remove. While we can't prevent badconditions caused by the weather, we can often foresee them and plan the necessary action.

A general cleanup once a week won’t guarantee safety on a construction site. You've seen jobs where it wasn’t safeto turn around or even put your foot down without looking twice to be sure there wasn't something that mightcause an accident. A job like this is poorly run. Not only is it unsafe, it also makes for poor relations with theowner and the public.

Safe Practices Keep trash and loose materials picked up and disposed of properly; put scrap in its proper place Secure materials to prevent shifting or rolling. Remove tripping hazards. Store materials so there is always a clean path around and between work areas and in and out of the

jobsite. Do not place objects in ways of exits. Keep floors, ladder rungs and stairways dry and free from oil and grease. Put tools and equipment in areas where they belong. Do not store loose materials on scaffolds./walk way/work platform/unguarded edge . Do not store more than one shift of material (e.g., block or brick) on scaffolds. Store material for stable removal. Leave space for workers and equipment to load and unload stored materials. Ensure the platform, scaffold or support has adequate strength for the weight of material. Keep the height of stored material low for stability and line of sight. Clear scrap lumber with protruding nails from work areas, passageways and stairs in and around buildings

or other structures. Remove combustible scrap and debris regularly. Provide containers for the collection of waste, trash, oily and used rags, and other refuse. Ensure containers for oily, flammable or hazardous wastes (such as caustics and acids) are equipped with

covers. Do not drop material outside the exterior walls of the building or structure. Enclose material chutes. Guard openings and discharge of material chutes. Don't leave open containers of flammables: gasoline, paint, oil, grease, adhesives, etc. Ensure the site has good lighting. Replace lights immediately when they burn out. Remember if waste is allowed to accumulate for just a few days, the job becomes messy and unsafe.REMEMBER 5S PRACTIVE IS THE BEST KEY OF MAINTAINING A CLEAN JOB SITE

DISCUSSION QUESTIONS Is there any area on this job that presently needs a clean-up? Are the trash containers on this job adequate and are they being used? Is there a designated area on the jobsite for construction debris to be placed?

OVERHEAD POWER LINESContact between crane booms and power lines cause more fatalities each year than any other type of electricalaccident in the construction industry. Examples of these types of accidents include: A framer hooked onto a bundle of material stored under a power line and was guiding the load when the

boom hit the line. A foreman walking backward pulling the hook when the load line contacted an overhead power line. A worker was leaning against the side of the crane when the boom hit a power line causing the current to

ground through his body.It is difficult for the boom operator to be sure of the exact location of the boom tip. The operator doesn't havegood distance judgment looking up along the boom and is usually paying attention to the load.

The best way to avoid contact is to keep the boom at least 10 feet away from any overhead line. Thismay mean storing material in a location that is less convenient than the empty ground under the wires, thatsomeone has to be assigned to watch the boom tip when work approaches a power line or that the powercompany should de- energize a line or protect it with rubber sleeves.Safe practices Survey the site for overhead power lines—LOOK UP! Locate and identify overhead electrical power lines. Remember when using a crane or high reaching equipment near energized power lines of 50,000 volts

(50 Kv) or more, the minimum distance between the lines and any part of the crane/equipmentmust be10 feet plus ½ inch for each 1,000 volts over 50,000 volts.

Request an observer when you do not have a clear view of the power line from your operating station.The observer’s only job should be ensuring that the operator maintains a safe distance from overheadpower lines.

Always treat overhead power lines as if they are energized. When in doubt, contact the electric company to determine what voltage is on the lines. Always ask the electric company to either de-energize and ground the lines or install insulation while you

are working near the lines. Even with insulation, a minimum safe clearance must be maintained from the power lines. Always make sure ladders and tools used near power lines are nonconductive.

DISCUSSION QUESTIONS Do we have any material stored, or work to be done, close to a power line on this job? Is there anyone here qualified to give CPR to a worker rendered unconscious by electric

Voltage(Phase to Phase) Minimum Clearance(Feet)

< - 50,000 10

50,000 - 75,000 11

75,000 - 125,000 13

125,000 - 175,000 15

175,000 - 250,000 17

250,000 - 370,000 21

370,000 - 550,000 27

550,000 - 1,000,000 42

PERSONAL PROTECTIVE EQUIPMENTHazards should be avoided through engineering or administrative controls. If those controls are not available orare unfeasible, personal protective equipment should be used to put a barrier between you and the hazards.

Types of Personal Protective EquipmentHearing protection – Use when exposed to noise at or above, 90 decibels (dB) TWA. If you have to yell tocommunicate, you need hearing protection.

Hard hats – Wear when exposed to bumping into or struck-by hazards.

Gloves and arm protection – Cover hands and arms when exposed to chemicals, heat, cold, radiation agentsor abrasive surfaces.

Respirators – Should be used when exposed to harmful inhalation hazards due to chemicals. Respirators haveintended uses; ensure the respirator you are using is properly selected for the hazard to which you are exposed.For example, dust respirators are used for silica exposure when cutting block; organic cartridge respirators areappropriate for trichloroethylene found in paints and resins.

Safety harnesses with lanyards – Should be implemented when exposed to fall hazards.

Eye and face protection - Glasses are intended to be used to protect from impact hazards; e.g., when usingsaws. Goggles protect the eyes from splash hazards. Face shields are intended to protect the face from splashhazards and shouldbe worn with safety glasses or goggles.

Welding hoods – Should be worn when performing cutting, welding or brazing.

Airline sand blasting hoods /Cupper blasting – Should be used when sandblasting. Ensure helper is protectedalso.

Steel-toe shoes – Should be worn when moving or working around potential falling heavy objects.

DISCUSSION QUESTIONS In your current job, are there instances when you should wear personal protective equipment? What type of equipment do you need to safely complete your tasks? When should you wear this equipment?

PORTABLE ELECTRIC TOOLSEach year many workers on construction sites suffer electric shock using portable electrical tools and equipment.The nature of the injuries, including those caused by ground faults, ranges from minor injuries to serious secondaryinjuries. A secondary injury occurs when a worker recoils from an electric shock and, as a result, sustains aninjury. Depending on the surrounding conditions, such an accident can result in a bruise, a broken bone or a fatalfall.Methods of protectionOne method of protection against injury caused by an electrical fault is the use of an equipment groundingconductor commonly known as the third – or green – wire. This equipment grounding conductor grounds theexposed, noncurrent-carrying metal parts of tools or equipment and carries off the leakage and fault currents, thuslimiting the voltage on the tool frame by providing a low resistance path to ground.

Another method of protection is the utilization of a ground-fault circuit interrupter (GFCI). GFCI protection isrequired for ALL jobsite electrical outlets, including outlets at existing homes and businesses. This devicecontinually monitors the current and conductors. If the leakage current to ground (either through the equipment-grounding conductor or through a person) exceeds the trip level, the circuit is interrupted quickly enough toprevent electrocution.

Tips to remember Before using any portable electrical power tool, inspect the plug, cord, on-off switch and housing. Look

for cracked, broken or frayed insulation, exposed wires or connections and any evidence of damage ingeneral.

Properly tag damaged tools and turn in for repairs. Do not use. Inspect extension cords and the GFCI protected outlets you plug into. Look for evidence of damage and

exposed conductors. Check the outlet, extension cord, tool and work area to determine if they are clean and dry. Ensure grinders, saws and similar equipment are provided with appropriate safety guards. Ensure power tools are used with the correct shield, guard or attachment. Ensure all cord-connected, electrically operated equipment is effectively grounded or of the approved

double insulated type. Ensure effective guards are over belts, pulleys, chains, sprockets, pinch points and points of operation. Ensure ground-fault circuit interrupters are provided on all temporary electrical 15

and 20 ampere circuits. Check pneumatic and hydraulic hoses on power-operated tools for deterioration. Ensure the work rest is adjusted to within 1/8 inch to the wheel and the tongue is adjusted to within 1/4

inch to the wheel on abrasive wheel grinders. Ensure side guards cover the spindle, nut, flange and 75 percent of the wheel diameter on abrasive wheel

grinders. Ensure the maximum RPM rating of each abrasive wheel is compatible with the RPM rating of the grinder

motor. Ensure new abrasive wheels are visually inspected and ring-tested before use. Ensure appropriate safety glasses, face shields, etc. are used while using hand or powered tools or

equipment that might produce flying materials or is subject to breakage.

DISCUSSION QUESTIONS Have you noticed any of our tools that appear to be defective? Do you know why GFCI protection is important on the jobsite?

PREVENTING BACK INJURIESPreventing a back injury is much easier than repairing one. Because your back is critically important to your abilityto walk, sit, stand, and run, it's important to take care of it. Most back pain arises from using your back improperly,so learning a few basic rules about lifting, posture and proper exercise can help keep your back in good shape.

ExerciseHaving strong back and stomach muscles is important in order to ease the work your back is put through eachday. By doing simple back-toning exercises, you not only strengthen your back but also reduce stress and improveyour appearance, too! Check with your doctor to see which exercises are best for you.

Stay in good physical shapeExcess weight exerts extra force on back and stomach muscles. Your back tries to support the weight out in frontby swaying backwards, causing excess strain on the lower back muscles. By losing weight, you can reduce strainand pain in your back. Check with your doctor for the most sensible diet plan for you.

Maintain good postureYou can prevent many back pains by learning to sit, stand and lift items correctly. When you sit down, don'tslouch. Slouching makes the back ligaments, not the muscles, stretch and hurt, thus putting pressure on thevertebrae. The best way to sit is straight, with your back against the back of the chair, feet flat on the floor andyour knees slightly higher than your hips. Learn to stand tall with your head up and shoulders back.

When lifting objects Plan your lift Position yourself correctly in front of the load with your feet straddling the load, one foot slightly in front

of the other for balance. Slowly squat down by bending your knees, not your waist, back or stomach.Using both hands, firmly grab the load and bring it as close to your body as you can.

Lift with your legs, not your back. Slowly straighten out your legs until you are standing upright. Makesure the load isn't blocking your vision as you begin to walk slowly to your destination. If you need to turnto the side, turn by moving your feet around and not by twisting at your stomach.

Set the load down correctly. Reverse the lifting procedures to reduce the strain on your back andstomach muscles. If you set the load on the ground, squat down by bending your knees and position theload out in front of you. If the load is set down at table height, set the load down slowly and maintainyour contact with it until you are sure the load is secure and will not fall when you leave.

Get help if the load is too heavy, bulky or awkward for you to lift alone.

DISCUSSION QUESTIONS What three things aid in preventing strain on your back? What is the process of properly lifting an object? Why is a strong back important to your job and your life?

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SCAFFOLDINGOver 40% of the serious injuries to workers in the building trades are caused by falls from one level to another.These falls usually occur because the worker did not have a safe place to stand while working. A good rule ofthumb: don't work from anything that was not designed for that purpose. Manufactured scaffolds should beutilized whenever possible.Safe Practices Construct scaffolds according to the manufacturer’s instructions. Use screw jacks, base plates and mudsills to ensure adequate support. Install a guardrail system or fall arrest system for scaffolds more than 10 feet above a lower level. Install guardrails on all open sides and the ends of platforms. Provide safe access to scaffold platform. Prohibit employees from climbing the cross bracing to access the platform. Prohibit the use of unstable objects to support scaffolds. Do not use front-end loaders, forklifts and similar equipment for support unless d Ensure that platforms do not deflect more than 1/60 of span when loaded. Prohibit moving a scaffold while employees are on the scaffold.

ed for use.

Prohibit working from scaffold during storms or high winds unless the competent person approves workand wind screens or fall arrest systems are used. A windscreen may only be used when the scaffold issecured against anticipated wind forces.

Inspect scaffolding before each shift. Inspection should be completed by a competentcapable of identifying scaffold hazards and has the authority to correct the hazards.

person who is

Employees working on scaffolds should be trained by a person qualified to recognize hazards associatedwith the type of scaffold and understand the procedures to control or minimize hazards.

Employees erecting, dismantling, moving or inspecting the scaffolds must be trained by a competentperson to recognize any hazards.

Require employees to be retrained when employees demonstrate a lack of skill or understanding in thescaffolding requirements.

Additionally for rolling scaffolds Do not ride rolling scaffolds. Remove all material and equipment from platform before moving scaffold. Apply caster brakes at all times when scaffolds are not being moved. Do not attempt to move a rolling scaffold without sufficient help. Watch out for holes in the floor and

overhead obstructions. The working platform he

unless guyed or otherwisof a rolling scaffold must not exceed four times the smallest base dimensionbilized.

DISCUSSION QUESTIONS Is the time used in setting up a safe scaffold saved by providing a place where a worker can work without

worrying about every move he makes? What is the maximum number of sets of our scaffolding which can be used without going above a safe

height?

screw jacks Base collars Standards Ledgers Diagonal braces Toeboards scaffolding

SILICA PRECAUTIONS

What is crystalline silica?Crystalline silica is a basic component of soil, sand, granite and many other minerals. Quartz is the most commonform of crystalline silica. The dust may become respirable particles when workers chip, cut, drill or grind objectsthat contain crystalline silica.

HazardsCrystalline silica has been classified as a human lung carcinogen. Breathing crystalline silica dust can cause silicosis,which can cause severe shortness of breath, weakness, weight loss, fatigue, chest pain, and in severe cases can bedisabling or even fatal. Smoking adds to the damage caused by silica dust.

Who is at risk?Working in any dusty environment where crystalline silica is present can potentially increase a person's chances ofgetting silicosis. Workers who remove paint and rust from buildings, bridges, tanks, and other surfaces; cleanfoundry castings; work with stone or clay; etch or frost glass; and work in construction are at risk of overexposureto crystalline silica.

Controls Use engineering controls, such as local exhaust ventilation and blasting cabinets. Use protective equipment or other protective measures to reduce exposures. Use work practices controls, such as water sprays, when cutting bricks and blocks. Wear only certified respirators, if respiratory protection is required and do not alter the respirator. Respirators cannot be worn by workers with facial hair, such as beards. It prevents a good seal between

the respirator and the face. Shower if facilities are available and vacuum the dust from your clothes or change into clean clothing

before leaving the worksite. Participate in training, exposure monitoring, and health screening and surveillance programs to monitor

any adverse health effects caused by crystalline silica exposures. Do not eat, drink, apply cosmetics or smoke in areas where crystalline silica dust is present.

DISCUSSION QUESTIONS Do you know of instances or can you think of examples where we work in areas containing silica? Do you know how to properly use respirators for this type of work?

STAIRWAYS AND OPENINGSProviding good protection of wall and floor openings is one way to prevent falls. Make sure that all wall and flooropenings are properly guarded and if you have to remove guardrails to work, put the protection back when youare done. Guardrails are required to be placed at 42" and mid-rails at 21". Make sure that you understand theapplicable rules regarding when wall and floor openings must be guarded.

Safe Practices Stairways or ladders should be provided at worker points of access where there is a break in elevation of

19 inches. Ensure stair rails (not less than 36 inches in height) are installed on all stairways with four or more risers,

or rising more than 30 inches. Guardrails should be installed on all stairs prior to use. Ensure that stairways are not used to store materials. Except during construction of the actual stairway, skeleton metal frame structures and steps must not be

used, unless the stairs are filled and secured with temporary treads and landings. Mid-rail screens, mesh, intermediate vertical members or equivalent intermediate structural members

should be provided between the top rail and the stair rail system. Temporary handrails should have a minimum clearance of three inches between the handrail and the

walls, stair rail system and other objects. The unprotected sides and edges of stairway landings should be protected by a standard guardrail system. Stairways should be installed at least 30 degrees, and not more than 50 degrees, from the horizontal. A platform must be provided at all locations where doors or gates open directly into a stairway. The swing of gates and doors should not reduce the effective width of the platform to less than 20 inches.

DISCUSSION QUESTIONS Has the jobsite been inspected (by the competent person) as to the fall hazards present and appropriate

measures taken, before work begins? Is the jobsite inspected at the beginning of each workday, and as the day proceeds, for new fall hazards? Do you know of any locations on this job where wall/floor opening protection is either lacking or

defective?

STAIRWAYS AND OPENINGSWhat factors must we consider in designing safer stair

FIGURE -1A - Optimal range: 30º-35ºB* - Handrail height: 80-96.5 cmC* - Riser height: 12.5-20 cmD* - Step width: 90 cm min.E* - Tread depth: 23.0-35.5 cmWithin a staircase, treads shall have a uniform run and tread depth that does not vary more than 0.6 cm*.

* Values are Always check with your local jurisdiction as requirements are different in each area.The maximum range for a stair slope is 20º-50º. However, because the majority of people prefer a slope of 30º-35º, this is therecommended range.Steeper stairs change the way you climb them because the steeper they are the more effort you exert. The ratio of riser height andtread depth has to be adjusted accordingly

FIGURE -2

FIGURE -3

STAIRWAYS AND OPENINGSThe dimension of risers or treads in a stairway should not vary more than 1 cm. When doors open directly into the stairwell, a 50cm-wide platform should be provided beyond the swing of the door. The recommended maximum number of steps between landingsis 18, with no more than two flights without a change of direction. The depth of any landing should be at least equal to the width ofthe stairs.

Stair surfaceTo reduce the risk of slipping on stairs, non-slippery surface on the whole steps or at least on the leading edges is crucial. Such asurface can be made of rubber, or metal or painted with special slip-resistant paint. Regular maintenance of the stairs in good repairplus good housekeeping can reduce hazards for tripping.

Stair handrailsThe prime function of the handrail is for holding as support while going up or down stairs.Figure 4 shows the recommended cross-section and dimensions of a good handrail. Ideally the cross-section should be round(diameter 4-5 cm, with circumference of 12-14 cm) to allow for a good firm grip.

Figure 4You should be able to run your hand smoothly along the entire length without having to adjust your grip. You should apply the so-called "tennis-racket grip" at all times when possible.Guardrails of at least 40 cm above the surface of the stairs are needed to prevent falls off the side of the stairs that are not equippedwith a banister.

Visibility on stairsImproving visibility on stairs significantly reduces the risk for common mishaps caused by misjudging distances. Otherwise you cantrip on a step or miss it completely. You can catch a heel on the edge of a step. Such mishaps are a routine cause of twisted ankles,sprained knees or more serious injuries incurred by a total fall.

Recommended illumination should be at the minimum 50 lux level. Use angular lighting and colour contrast to improve depth perception. Use matte finishes on the treads to avoid glare. Avoid patterned carpeting that may visually hide differences in depth.

Be very cautious on stairs if you are wearing bifocal glasses

Short CutsQuestion: (Yes/No answer) Nearly everyone we know uses short cuts to get the job done?Answer: Generally yes.

However, there are some reasons not to use short cuts. As we all know, a project is completedby use of certain construction methods. Short cuts usually modify methods and as a result,decrease the safety built into proven methods.

Guide for DiscussionWhat are some ideas to keep in mind when doing short cuts?

Everyone uses short cutsThey can be dangerousSometimes they are deadlyOur company is willing to take the time necessary to do a job properlyHeights increase the dangers of short cutsExcavation and tunnels increase the dangers of short cutsWarn those using unsafe short cuts of the hazards associated with short cuts.

Additional Discussion Notes:Short cuts can really hurt our customers and our profits. Name some examples you have seenon the job.Remember: Although we all use short cuts in our daily routines, we must be aware of thedangers that short cuts expose us to. There are two ways to perform a work task. Often the safeway is not the fastest or easiest way.

DISCUSSION QUESTIONS

how do you p r o t e c t t h e s h o r t c u t ?

Trenching/ExcavationTrenching operations are common to many types of construction and maintenance projects and areinherently dangerous. Due to the great exposure, numerous accidents in connection with trenching occurevery year. A few simple precautions, if observed, can serve to take most of the risk out of trenchconstruction.Safe Practices Ensure that the competent person received specific training in, and is knowledgeable about, soil

analysis, use of protective systems, and the requirements of BOCW ACT 1996 and BOCW central rulesExcavations and Trenches.

Ensure that the competent person has classified the soil using one manual and one visual test. In soils other than solid rock, shale or cemented sand and gravel, the trench should be shored and/or

braced, or terraced if over five feet in depth. The trench should be shored and braced, regardless of length of time it will be open. Ensure that excavations, adjacent areas and protective systems are inspected by a competent person

before the start of work, as needed throughout the shift, and after rainstorms or other occurrences thatcould increase the hazard.

Place spoils, materials and equipment a minimum of two feet from the edge of the excavation. Prohibit employees from walking or working under suspended loads. Ensure that utilities companies are contacted and underground utilities are located as required by local,

state r u l e s . Ensure that workers inside an excavation are within 25 feet of a means of access/egress. Workers working in trenches should be separated to avoid being struck by fellow workers’ tools: 12-

foot spacing is recommended. Ensure that ladders used in excavations are secured and extend at least three feet above

the edge of the excavation. Ensure that employees are protected from cave-ins when entering or exiting from an excavation. Ensure that precautions are taken to protect employees from water accumulation. Ensure that the atmosphere inside the excavation is tested when there is reasonable possibility of an

oxygen-deficient, oxygen-enriched, combustible or toxic atmosphere or any other harmfulcontaminants.

Ensure employees are trained to use personal protective equipment and other rescue equipment. Require workers to wear hard hats in trenches. Ensure that materials and equipment used for protective systems are inspected and in good condition.

DISCUSSION QUESTIONS What are some basic safety measures when working in a trench or excavation area? Who should be trained about soil analysis and inspect the excavation area

acki

Before startingANGLE GRINDER OPERATIONS

• Is the grinder outer body free of visible defects, missing parts or damage?• Is the power cord/plug or air hose free of visible damage?• Is the power supply (electric or pneumatic) compatible with the requirements of the grinder?• Are guards and handles in place and secure?• Does the guard cover a minimum of 50 percent of the abrasive wheel circumference between the

wheel and the user?• Is the grinder equipped with a functioning automatic cut off or "dead man" switch?• Is the abrasive wheel rated for the maximum possible speed (RPM) of the grinder?• Is the abrasive wheel free of visible damage?• Does the abrasive wheel fit tightly around the grinder spindle?• Is the abrasive wheel attached to the grinder spindle with the correct flanges, b

locking nut?Safe Grinder Operations• Wear the correct personal protective equipment.• Allow the grinder to "run up to speed" before applying it to the work surface.

ng plate and

• Hold the grinder with two hands applying minimum pressure against the work surface.• Apply the correct face of the abrasive wheel to the work surface.• To prevent kickback don't bump the grinder onto the work surface or let the abrasive wheel contact

adjacent surfaces while grinding.• Adopt a comfortable stance with feet apart, well balanced and with a clear view of the work surface.• Stop the grinder at regular intervals to rest your arms.• Do not lay the grinder down while the abrasive wheel is still rotating.• Replace abrasive wheels made to small by use. (Never wear an abrasive wheel to its backing

flange/plate.)• Install new abrasive wheels in accordance with the manufacturer's instructions.• Unplug the power cord or disconnect the air hose before changing abrasive wheels.• Position the power cord or air hose in a manner that prevents damage to the hose from the grinding

operation and prevents tripping hazards.• Make sure that the surface to be ground is secure and will not move as the result of he rotation ofthe grinding wheel.

DISCUSSION QUESTIONS What are some basic safety measures when working with a angle grinder?

HorseplayIntroduction: Nearly everyone has heard a practical joker say “This one is gonna kill ya.” Well,Hopefully it never will. However, practical jokes invite danger. The construction industry isPotentially dangerous and anything that unnecessarily increases the chance of an injury must beEliminated. Horseplay benefits no one and usually only builds up bitterness and fostersRetaliation. Practical jokes should be discouraged. At some point, if they continue they need toBe reported.

Guide for DiscussionExamples of Horseplay

scaring someone.Air hosing someone.Wrestling with someone.Boxing. Goosing.Dropping objects next to someone.Throwing water on someone.Throwing objects or tools at someone.Placing tacks under someone.

Remember: Practical jokers can not guarantee the success of their jokes. They can guaranteethat they increase the chance of an accident occurring. Imagine a joke that backfires, resulting inan injury or death to a co-worker. Do you want any part of that? It’s easy enough to get hurt onthe job as it is. Let’s not increase anyone’s chance

DISCUSSION QUESTIONS

Can you think of other examples?

What are the adverse (bad) consequences of horseplay?

When is it appropriate to report horseplay to supervisors?

.

Signalling TechniquesProper signalling can greatly increase theefficiency and productivity of a constructionprojectWhether it is guiding a delivery vehicle, a forkliftor a crane. Improper signalling can kill or injureWorkers as well as cause severe propertydamage on a project. The following points areRecommended discussion points when discussing signalling.

Always be in a position to see both theoperator and the work area.Always watch the load; the operator mustwatch the signal person.Not move a suspended load over workers.Always warn workers when loads are beingmoved in their area.Watch for overhead power lines and anyother obstructions. Remember the proper typeof signaling operation – for a truck, forklift orcrane.

Remember: It only takes one small mistake onthe part of the signal person to cause a severeinjury or major property damage. Make sureyou and the operator understand each otherand the signals to be used.

NOTE: Always promote a discussion of any of thetopics covered in the Tool Box Talks. Shouldany question arise that you cannot answer, don’thesitate to contact your senior(S).

Discussion Question.How many person to give signals.Be sure the operator knows who the signal personand his signal techniques.

Put on the proper attire and PPE at all times

Helmet

ReflectiveVest

SafetyBoots

Figure-1:SignalmanAttire

IdentificationTag

Gloves

Helmet

ReflectiveVest

SafetyBoots

Figure-2:RiggerAttire

IdentificationTag

scenaid y

on

BARRICADING TAPE1. Yellow/Black Barricade Tape serves as CAUTION and POTENTIAL HAZARD from: Excavation less than 1.2 meters (4 feet) in depth Identification of trip hazards and low hanging objects Material storage on site

2. Red Barricade Tape indicates DANGER and SERIOUS HAZARD from: Overhead work Live electrical components Scaffold under construction Around swing radius of equipment with a rotating superstructure

3. Magenta (Purple)/Yellow Tape denotes DANGER and POSSIBLE RADIATION EXPOSURE

Red / white for Fire Prevention and Protection Equipment Black / white for Housekeeping and Aisle Marking Magenta / yellow for Radiation Hazards Green / white for Safety and First Aid Blue / white for Defective Machinery Orange / white for Traffic and Caution Warning Black / yellow for Physical HazardsWhile the colors have been chosen for you, the wording on your barricade tape has not. Hundreds ofversions of barricade tape messages have been produced in dozens of languages. You can even buybarricade tape without wording or markings at all. (Special orders of barricade tape are no problem, butlike anything, you'll need to order a certain volume to bring the cost down.)

The marketplace seems to have standardized on three-inch-wide tape by 1,000 feet long for disposabletapes. Other sizes exist, such as two, four and six-inch.The normal tape configuration is two to four mil thick, non-adhesive and made from polyethylene.Dispensers, boxes and clips are some of the accessories for these tapes.Reusable tapes are normally much thicker (up to 10 mil thick) and made from either polypropylene ornylon.Certain industries have their own needs for special tape, such as heavy paper tape used in paper andchemical plants.

Biodegradable tapes are increasing in use for those hard-to-reach places.

Tape variations exist for special situati

Whether reflective or normal, fluorelikely the most cost-effective safety

s or industry-specific problems, such as the police or military.

t or plain, sticky-backed or non-adhesive - barricade tapes areyou will ever buy.

HORIZONTAL LIFELINE SYSTEMS GUIDELINEDefinitions (in this guideline):

“Anchor” means a permanent or temporary structure or component of a structure to which fall protectioncomponents are attached.

“Fall Arresting System” means a permanent or temporary assembly of components designed to arrest the fallof one or more users.

“Travel Restraint System” means a permanent or temporary assembly of components capable of preventing aworker from reaching a location from which he or she could fall.

“Free Fall” means the vertical distance from the onset of a fall to the point where the fall arresting systembegins to apply force to arrest the fall. For example, distance from the carabiner before the fall to thecarabiner at the first instant of arrest.

“Full Body Harness” means a body support device consisting of leg and shoulder straps and an upper dorsalassembly that will distribute and reduce the impact force of any fall. A harness may, in addition to its primaryfall arresting function, have other functions such as work positioning, ladder climbing, rescue and controlleddescent.

“Horizontal Lifeline” means a rope made of synthetic fibre or wire, a rail or other similar systems that areattached horizontally to two or more anchors, and to which a fall arresting system or travel restraint systemmay be attached.

“Lanyard” means a flexible line used to attach a full body harness or safety belt to a vertical lifeline, ahorizontal lifeline or an anchor point.

“Personal Fall Protection System” means the components of a fall protection system for which the user hasresponsibility and includes some of the following fall protection components: a full body harness, a safety belt,a shock absorbing lanyard (or a lanyard and a separate shock absorber), a fall arrester, a self-retracting deviceand the connecting hardware.

“Shock Absorber” means a component of a fall arresting system that dissipates energy by creating orextending the deceleration distance.

I. SYSTEMS FOR TRAVEL RESTRAINT

A horizontal lifeline system for travel restraint must

(a) be rigged to prevent the worker from falling off the unguarded edge, and

(b) be attached to secure anchors in a manner, and with components capable of supporting at least two timesthe maximum load likely to be applied to it (approximately 800 lbs). On a roof with a slope greater then 3 in12, the horizontal lifeline system must be designed for fall arrest.

II. SYSTEMS FOR FALL ARREST1. Design and certified by a professional engineer A horizontal lifeline system used for fall arrest that isdesigned and certified by a professional engineer1 can be used if the professional engineer supplies to theworkplace signed and dated drawings and instructions for the horizontal lifeline system showing:

(a) The layout in plan and elevation, including anchor locations, installation, specifications, anchor design anddetailing,

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n

(b) Horizontal lifeline system specifications, which includes:

• Permissible free fall distance→please note the maximum arrest force must not exceed 8 kN (1800 lbs),

• Clearance to obstructions below,

• Cable size, breaking strength, and termination details, and

• Initial sag or tension,

(c) The number of workers permitted to connect to the lifeline.

2 (a) When using the horizontal lifeline system, a full body harness that complies with IS 3521 Standard “FullBody Harness” must be worn.(b) The wire rope must have a diameter of a minimum of 12 mm (1/2 in) with a breaking stre

by the manufacturer, of at least 89 kN (20 000 lbs). The fasteners reduce the strength of t25%, therefore the strength requirement for the wire rope is greater than that of the othefall arrest system.

gth, specifiedire rope bymponents of the

(c) Connecting hardware such as shackles and turnbuckles must have an ultimate load capacity of at least 71kN (16 000 lbs).

(d) End anchors must have an ultimate load capacity of at least 71 kN (16 000 lbs). It is not possible to tell theload capacity of an anchor just by looking at it, therefore the employer must provide proof (an engineer’scertificate) that the end anchor is capable of supporting the load capacity indicated above. (f) The horizontallifeline must be free of splices except at the termination.

(e) The span must be at least 6 m (20 ft) and not more than 18 m (60 ft). If the length of horizontal lifelineneeded for a job exceeds 18 m (60 ft), a second system with its own independent anchors must be installed ora multi span system must be designed by an engineer and meet the requirements for the “systems certified bya professional engineer”.

(f) The horizontal lifeline must have an unloaded sag no greater than one in 60. (E.g. one foot in a 60-footspan) The greater the sag, the greater thof injury to the worker. Therefore it is

orce on the worker when a fall occurs. This increases the likelihoodimportant not to exceed this sag.

(g) The elevation of the horizontal lifeline at any point must be a minimum of 1 m (39 in) above the workingsurface.

(h) The free fall distance must be limited to 1.2 m (4 ft). (k) A minimum of 5.5 m (18 ft) of unobstructedclearance must be available below the working surface.

(l) No more than 3 workers may be secured to the horizontal lifeline.

(j) The horizontal lifeline must be positioned so it does not impede the safe movement of workers.

INDUSTRIAL SAFETY BELTS AND HARNESSES SPECIFICATIONIS 3521 (Third Revision)

CLASSIFICATIONThis standard covers the following types of belts and harnesses. All full body harnesses shall be classified asClass A - Fall Arresting.Class A harnesses are designed to support the body during and after the arrest of a fall. Class A harnesses shallhave one D-ring for fall arrest attachment affixed to both shoulder straps at the back or at the front.

Optionally, FULL body harnesses could be classified underone or moreclasses. The identifications of these classesare:Class D- Controlled descentClass E - Confined entry and exit (raising and lowering)Class L – Ladder climbing (frontal attachment)Class P - Work positioningClass D - Controlled Descent

Class D harnesses are those which meet the require• mentsfor Class A harnesses and which are also designed forcontrolled descent from a height. Class D harnesses shall have front- or side-mounted D-rings, but they shall not bemounted at waist level.Class E - Vertical Entry and Exit

Class E harnesses are those which meet the requirements for Class A harnesses and which are also designed tosupport the user during entry into and exit from confined spaces, usually involving the lowering and raising ofthe user. Class E harnesses shall have a sliding D-ring on each shoulder strap.Class L - Ladder ClimbingClass L harnesses are those which meet the requirements for Class A harnesses and which are designed for useWith a fall arrest system mounted on or adjacent to ladders or towers. Class L harnesses shall have one or two O-ringsattached to the front of the harness.Class P - Work PositioningClass P harnesses are those which meet the requirements for Class A harnesses and which are designed to position theuser during a work operation. Class P harnesses shall have O-rings mounted at waist level.

Width and Strength of the StrapsThe minimum width and thickness of webbing for waist straps shall be 40 mm and 3 mm respectively. Thewaist belts shoulder straps, hoisting straps, sole straps and all types of belts and harnesses shall not break under aminimum tensile load of 19.6 Kn (2 000 kg).

Full body harness

DISCUSSION QUESTIONS Is there a need to utilize fall protection on our job sites? What type of fall protection do you think is appropriate for this job site? What should you do to help keep our job site safe from falls?

Indian Standard LIFE-BUOYS — IS No. 3751 : 1993 SPECIFICATION (First Revision)

GENERAL REQUIREMENTS FOR LIFEBUOY Life-buoy shall,a) Be constructed with proper workmanship and materials;

b) Not get damaged in stowage throughout the air temperature range –30 degree C to +65 degree C)if these are likely to be immersed in seawater during their use, operate throughout the seawater temperature

range –1 degree C to + 300 degree C;c) where applicable, be rot-proof, corrosion resistant, and not be unduly affected by sea water, oil or fi.mgalattack;D) where exposed to sunlight, be resistant to deterioration; bc of a highly visible colour on all parts where thiswill assist detection;E) be fitted with retro-reflective material where it wi11assist in detection and in accordance with therecommendation of IMO Resolution A.658 (16); if these are to be used in a seaway, be capable of satisfactoryoperation in that environment;F) be clearly marked with approval information, including the Administration which approved it and anyoperational restrictions; and where applicable,G) be provided with electrical short-circuit protection to prevent damage or injury.

4 CONSTRUCITON, MATERIAL AND DIMENSIONS4.1 Life-buoy shall either be constructed of cork, evenly formed and securely plugged, or of other equallyefficient buoyant material which shall not be adversely affected by oil or oil products.

4.2 Life-buoys, if made of plastic or other synthetic compounds shall be capable of retaining its buoyantproperties and durability in contact with sea water or oil products or under variation of temperatures orclimatic changes prevailing in open sea voyages

. 4.3 Life-buoys shall have an outer diameter of not more than 800 mm and an inner diameter of not less than400 mm .

4.4 Life-buoys shall be constructed of inherently buoyant material; shall not depend upon rushes, corkshavings or granulated cork, any other loose granulated material or any air compartment which depends oninflation for buoyancy.

4.5 Life-buoys shall be capable of supporting not less than 14.5 kg of iron in fresh water for a period of 24 h.

4.6 Life-buoys shall have a mass of not less than 2.5 kg.

4.7 Life-buoys shall not sustain burning or continue melting after being totally enveloped in a fire for a periodof 2 s.

4.8 Life-buoys shall be constructed to withstand a drop into the water from the height at which it is storedabove the waterline in the lightest seagoing condition or 30 m, whichever is greater, without impairing eitherits operating capability or that of its attached components.

4.9 If it is intended to operate the quick release arrangement provided for the self activated smoke signalsand self igniting lights, life-buoys shall have a mass sufficient to operate the quick release arrangement.

4.10 Life-buoys shall be fitted with a grab line not less than 9.5 mm in diameter and not less than four timesthe outside diameter of the body of the buoy in length. The grab line shall be secured at four equidistantpoints around the circumference of the buoy to form four equal loops.

5.LIFE-BUOY SELF IGNITING LIGHTSSelf igniting lights for life-buoy, where provided by rules, shall,

a) be such that these cannot be extinguished by water;

b) be of white colour and capable of either burning continuously with a luminous intensity of not less than 2cd in all directions of the upper hemisphere or flashing (discharge flashing) at a rate of not less than 50flashes and not more than 70 flashes per minute with at least the corresponding effective luminous intensity;c) for a period of at least 2 h; and d) be capable of withstanding the drop test specified in 4.8.

6 LIFE-BUOY SELF ACTIVATING SMOKE SIGNALS Self activating smoke signals required by rulesshall,a) emit smoke of a highly visible colour at a uniform rate for a period of at least 15 min when floating in calm

waterb) not ignite explosively or emit any flame during the entire smoke emission time of, the signal;

c) not be swamped in a seaway;

d) continue to emit smoke when filly submerged in water for a period of at least 10 s and

e) be capable of withstanding the drop test as specified in 4.8

. 7 BUOYANT LIFELINES Buoyantlifelines shall,a) be buoyant even after being wet for 24 hb) be non-sinking ;

c) have a diameter of not less than 8 mm, andd) have a breaking strength of not less than 5 kN.

Life Buoy Self Igniting lamp

Suggested earthing specifications

1. Size of the copper plate - 600x600x3mm

2.GI (galvanized) pipe of 40 mm diameter is to be used

3. The earth pit to be dug for a depth of 3.75 mts.

4. Copper plate is to be properly fastened with nuts and bolts to the Copper wire of size14 SWG. This copper strip/copper wire is Laid up to the main distribution board ofthe centre.

5. The copper strip/copper wire is to pass through the GI pipe.

6. 19 mm GI pipe to be laid for watering purposes. This will have a funnel at the topof the earth pit chamber.

7. 50 Kg. of salt and approx. 100 Kg. of coal are to be filled in the pit, In layers, afterthe plate and the pipes are laid in the pit.

8. Measure the earth resistance at the pit which has to be less than 5 Ohms.

DIVING WORKS /UNDER WATER SURVEY WORKS

PLANNING:

Designate a team leader who should coordinate planningAllocate personal gear to users’ individual responsibilityEstablish a work plan and discuss with team MembersDesignate a contact person who knows the work planStudy the survey location using maps and local informationEnsure you have effective communication by radio or mobile phoneArrange secure packing of gear and materials.Ensure the boat operator knows the where abuts of all divers and Be alert for others swimmersand fishers in the water.Stay away from ascending divers (10m at least) move in when they have surfaced.Position the boat into the wind and swells in all operations.Ensure there is an assistant on board to help divers back into the boatDo not leave boat unattended or move away from work site.Ensure that enough food and water is onboard in case of delayed return.

DIVINGCREDENTIALSAND INSURANCE:

Check that all divers have a minimum open water level certification.Only allow active divers who have dived in the last 6 months to participateCheck that all divers have insurance and a valid annual medical clearance to diveEnsure you can contact the local emergency agency.Ensure someone in the group knows relevant first aid procedures.

DIVE EQUIPMENT

Ensure all equipment is serviced regularly.Pack any additional set of equipment.Check gear for proper fit and leakage replace with spare set if faultyEnsure divers know their weight system.Check regulator leaks and trapped hose.Be familiar with your equipment .Keep fragile equipment in cases out of sun and salt water when not in use.

WEATHER AND GENERAL CONDITIONS:

Monitor daily weather forecastsSeek local advice where necessaryPlan activities according to daily weather conditions and tidal changes.Avoid diving in rough seas and strong tidal currents.Always dive in the same direction as the current.In channels always dive into the lagoon.Avoid areas of poor visibility.BEFORE DIVE CHECKS:

Check that our buddy’s gear is in good orderSecure, within easy reach, spare octopus, regulator and dive computer.Test air supply, check weight system and gauge before and on descent.Be clear on your dive plan before entering water ask if you are unsureEnsure all divers have basic understanding of standard dive sign language.

HEALTH

Do not dive if you have a head cold or are not feeling well.Change daily plans to suit the needs of the team if necessary.Keep a medical kit on board.Ensure at least two team members have basic first aid skills.Don’t dive under influence of alcohol or drugs, even the night before.Have oxygen equipment on board when diving to depths of 40m.UNDER WATER

Never dive aloneMaintain the same depth as your buddyand stay within view of each other.Stay focused and do not stray from the dive plan.Signal immediately if you sense a problem (e.g. tiredness, air running low, gear failure)Adjust our weight belt and buoyancy system.Fix problems as soon as they happen, don’t let them build upIf you lose your buddy, stop work and look around the area for 2 minutes if you cannotlocate your buddy ascend safely and alert the boat operator.

BOAT SAFETY

Ensure the boat is a suitable size and design for the work plan.Check that all basic safety gear is onboard.Check engine and keep additional fuel onboard, cross check with operator.

USING A COMPRESSOR:

A person should be in charge of the compressor.Ensure the machine is serviced before going into the field.Secure sufficient fuel to run the compressorCheck for clean air before refillingTake care of the machine and keep a spare one if necessary.

AFTER DIVE CHECKS:

Remove gear and safely.Put fragile equipment GPS, computers, mask, camera in casesTurn off device tanks onboard and keep tanks secure when the boat is movingAvoid free diving immediately after a deep dive.Wear a wind breaker on cold and windy days.Check that all data are recorded before leaving a site.Ensure safe keeping of completed record sheets.Do not travel by plane within 24 hours of completing a dive.

Personnel MonitoringTRI POD RIG/PVD RIG

• Maintain Personal Hygiene – Hair – Clothing – Jewellery.• Implement a Drug and Alcohol testing program – Work related accidents – Pre-Employmentscreening•Operator Knowledge – Make sure operator has been trained to use specific piece of equipment andcan operate it safely.

Safe Drilling OperationStart-up Check List – Lubrication – Filter Condition – General Inspection of Wires, Hoses, Cables etc.• Rig Set-up • Safety Check – Fire extinguisher – Emergency• Site Condition • Rig Walk Around • Check Fluids and Filters • Loose Objects – Tree branches – Tools• Leaks – Air – Fluid • Safety Check

Rig Lubrication• Check oil level daily -engine oil & coolant -compressor air/oil tank -hydraulic tank -pump oil (water injection,

mud, etc.) -pump drive gearboxes • Grease daily (must purge dirt) – Floating Sub – Rollers – Air Swivel –Rotation gear box seals – Chain/Cable Sheaves – Fan BearingSite Set-up• Safe Location • Soil Stability (geological conditions, • Weather (rain, snow, frost etc) • Cribbing • OverheadObstructionsThe following safety requirements should be adhered to while

performing drilling activities:1. All drilling personnel should wear safety hats, safety glasses, and steel toed boots.Ear plugs ,eye gadget,

reflective vest which are required.2. Work gloves (cotton, leather, etc.) should be worn when working around or while handling drillingequipment.3. All personnel directly involved with the drilling rig(s) should know where the emergency switch (s) is locatedin case of emergencies.4. All personnel should stay clear of the drill rods or augers while in motion, and should not grab or attempt toattach a tool to the drill rods or augers until they have completely stopped rotating. Rod wipers, rather thangloves or bare hands should be used to remove mud, or other material, from drill stem as it is withdrawn fromthe borehole.5. Do not hold drill rods or any part of the safety hammer assembly while taking standard penetration tests orwhile the hammer is being operated?6. Do not lean against the drill rig or place hands on or near moving parts at the rear of the rig while it isoperating.7. Keep the drilling area clear of any excess debris, tools, or drilling equipment.8. The driller will direct all drilling activities. No work on the rig or work on the drill site will be conductedoutside of the driller’s direction. Overall drill site activities will be in consultation with the site geologist orengineer, if present.9. Each drill rig will have a first-aid kit and a fire extinguisher located on the rig in a location quickly accessiblefor emergencies. All drilling personnel will be familiarized with their location.10. Work clothes will be firm fitting, but comfortable and free of straps, loose ends, strings etc., that mightcatch on some moving part of the drill rig. Rings, watches, or other jewellery will not be worn while workingaround the drill rig.12. The drill rig should not be operated within a minimum distance of 20 feet of overhead electrical powerlines and/or buried utilities that might cause a safety hazard. In addition, the drill rig should not be operatedwhile there is lightening in the area of the drilling site. If an electrical storm moves in during drilling activities,the area will be vacated until it is safe to return.

Operation TripodTRI POD RIG

Checked the allocated area was safe prior to setting up for bore works.Positioned the tri pod accurately for bored works.Ensured the tri pod was level and secured prior to bored works.Carried out full pre-start, running, safety and operational checks on the tripodChecked the allocated area was safe prior to setting up for bore works.Positioned the tri pod accurately for bored works.Ensured the tri pod was level and secured prior to bored works.Carried out full pre-start, running, safety and operational checks on the tripod

PVD RIG

Illumination

Construction areas, ramps, runways, corridors, offices, shops, and storage areas must be lighted to notless than the minimum illumination intensities listed in below.

Minimum Illumination Intensities in Foot-candles

5 Footcandles -- General construction area lighting.

3 Footcandles -- concrete placement, excavation, waste areas, access ways, activestorage areas, loading platforms, refueling, and field maintenance areas.

5 Footcandles -- Indoor warehouses, corridors, hallways, and exitways.

5 Footcandles -- Tunnels, shafts, and general under-ground work areas. (Exception:minimum of 10 footcandles is required at tunnel and shaft heading during drilling,mucking, and scaling. Bureau of Mines approved cap lights must be acceptable for use inthe tunnel heading).

10 Footcandles -- General construction plant and shops (e.g., batch plants, screeningplants, mechanical and electrical equipment rooms, carpenters shops, rigging lofts andactive store rooms, barracks or living quarters, locker or dressing rooms, mess halls,indoor toilets, and workrooms).

30 Footcandles -- First-aid stations, infirmaries, and offices.

NB:1 foot candle is equal to 1 lumen per square foot,OR-10.764 lux (Approximately)

WELDING AND CUTTING

Welding and burning operations provide the potential for fires and injuries. The precautions listed below must be observed:

Welding

a. Before starting to weld or burn, inspect work area to assure that sparks or molten metal will not fall onflammable or combustible materials.

b. A suitable, approved fire extinguisher shall be ready for instant use in any location where welding is done.Screens, shields, or other safeguards should be provided for the protection of employees or materials, below orotherwise exposed to sparks, slag, falling objects, or the direct rays of the arc.

c. The welder shall wear approved eye and head, hand protection. Employees assisting the welder shall also wearprotective glasses.

d. Electrical welding equipment, including cable shall meet the requirements of the National Electrical Code.Welding practices shall comply with all applicable regulations.

e. When welding brass, bronze, galvanized iron or cadmium plated metals, adequate ventilation shall be provided tocarry off vapors. A metal fume respirator should be used if the ventilation is not adequate.

f. For local exhaust suction devices to be effective, the exhaust hood entrance should be within nine (9") inches ofthe weld or cut.

g. Place all welding leads and gas hoses so they do not create a tripping hazard

Burning or Cutting

a. When gas cylinders are stored, moved or transported, the valve protection cap shall be in place

b. When cylinders are hoisted, they shall be secured in an approved cage basket, sling-board or pallet. Cylindersshall never be lifted by caps.

c. All cylinders shall be stored, transported and used in an upright position. If the cylinder is not equipped with avalve wheel, a key shall be kept on the valve stem while in use.

d. An approved fire extinguisher shall be readily available in the event of fire

e. Appropriate personal protective equipment, such as burning glasses, shields and/or gloves must be used.

f. Ventilation - Precautions must be taken to see that fumes and dust are not breathed when cutting lead, lead alloys,painted iron or steel, lead-coated iron or steel, load-bearing steels of cadmium plated metals. Mechanical ventilationshould be used to provide protection against breathing these materials. When this is not provided, a metal fumerespirator or supplied-air respirator should be used.

g. Oxygen and acetylene cylinders shall be separated by 20 feet while in storage or be divided by a one hour firerated divider at least 5 feet in height. "NO SMOKING" signs shall be posted and appropriate fire extinguishersshall be located 25 to 75 feet from the storage area.

h. Turn off all cylinder valves when not in use

i. Make sure that oxygen/acetylene hoses are equipped with flash-back arrestors at the regulator end.

Welding side effectsProlonged exposure to welding fumes and gases at high concentrations can cause:

siderosis (iron oxide) metal fume fever (zinc oxide, magnesium oxide, copper, aluminum) nervous system disorders (manganese) irritation of respiratory system eye, nose and throat irritation chest pain kidney damage (cadmium oxide, fluorides) cancer (cadmium oxide, nickel, chromium (VI)) fluid in the lungs (cadmium oxide, fluorides, ozone, nitrogen oxide) haemorrhage (ozone) dermatitis, eczema (nickel, chromium (VI)) bone and joint problems (fluorides) headaches and dizziness

Table I: Welding fumes and gases and their potential health effects

Fumes Source Health effects & symptoms

Cadmiumoxide

Stainless steel containing cadmium,plating

Pulmonary edema, nose irritation and ulceration;chronic effects include kidney damage and emphysema,cancer (prostate, lung), pulmonary fibrosis

Chromium(VI)

Stainless steel, plating, chromiumpigment manufacturing, electrode

Skin irritation, respiratory tract irritation, effects onnose, eyes and ears; chronic effects include lungcancer, kidney and liver damage

Copper Coating on filler wire, sheaths on aircarbon arc gouging electrodes,nonferrous alloys

Metal fume fever, eyes, nose and throat irritation

Iron oxide All iron or steel welding processes Acute effects are nose and lung irritation; siderosis(pulmonary deposition of iron dust)

Magnesiumoxide

Magnesium or aluminum alloys Eyes and nose irritation, metal fume fever

Manganese Most welding processes, high-tensilesteel

Chemical pneumonitis; chronic effects include nervoussystem disorders

Nickel Stainless steel, nickel-clad steel,plating

Dermatitis, asthma-like lung disease; chronic effectsinclude cancer (nose, larynx, lung), respiratory tractirritation, renal dysfunction

Zinc oxide Galvanized and painted metals Metal fume fever

Fluorides Electrode coating, flux material Eye, nose and throat irritation, gastro-intestinalsymptoms; chronic effects include bone and jointproblems, fluid in the lungs, kidney dysfunction

Ozone Formed in the welding arc Acute effects include fluid in the lungs andhaemorrhage; chronic effects include changes in lungfunction

Nitrogenoxide

Formed in the welding arc Pneumonitis, pulmonary edema; chronic bronchitis,emphysema; pulmonary fibrosis

Carbonmonoxide

Carbon dioxide shielded metal-arcwelding, electrode coatings

Headache, nausea, dizziness, collapse, death; chronniccardiovascular effects

The concentration of welding fumes to which welders are exposed depends on the type of weldingprocess, work area, existing ventilation, personal protective equipment, as well as, a welder'sposition and posture.

Hot environmentsHot environmental conditions include air temperature, radiant heat, humidity and air movement.Welding and cutting operations, and in particular plasma arc cutting, are known to produce heat, theexposure to which in combination with the internal body heat due to physical activity and clothingrequirements may lead to some health disorders or even heat-related illnesses.

The most common signs and symptoms of the body response to heat include:

Sweating Discontinued sweating Increased heart rate Increased body temperature Urinating less frequently than normal Small volume of dark-colored urine Irritability Lack of coordination Lack of judgement

Excessive and prolonged exposure to hot work environment can cause heat-related illnesses such as: Heat rush Heat edema Heat cramp Heat exhaustion Heat syncope (fainting) Heat stroke.

Signs and symptoms of heat illnesses include:

Excessive sweating Rapid breathing Weaknesses Tiredness Headache Confusion

NoiseAir carbon arc cutting, gouging and plasma arc processes generate significantly high noise levels.Excessive exposure to noise among welders can cause noise-induced hearing losses.

RadiationThe plasma arc emits intense ultraviolet, visible light and infrared radiation. Laser beam andelectron beam welding and cutting processes also produce visible and/or invisible radiation. Inaddition, whenever the high voltage is on, an electron beam system is capable of generating X-rays.

Musculoskeletal injuriesMusculoskeletal injuries, such as strains and sprains, can occur when a welder is welding in a staticawkward or horizontal position with a heavy face shield. The extra weight of the shield can causestrain on the welder's neck. Neck problems are also associated with prolonged use of a combinationof a hard hat and a welding helmet. In addition, long and repetitive duration of exposure and highforce generation may have cumulative effects that contribute to the increased risk of injury.

DISCUSSION QUESTIONS Is there a need to utilize CIRCUIT BREAKER protection on our job sites? What type of HOT WORKS protection do you think is appropriate for this job site? What should you do to help keep our job site safe from CUTTING AND WELDING WORKS?

FOR MORE DETAILS FOLLOW IS CODE:814:2004

WIRE ROPEThe Inspection of Wire Ropes

Wire rope is a group of strands laid helically and symmetrically, with uniform pitch and directionaround a central core of natural or synthetic fiber, or wire. Fig-1

Many types of machines and structures use wire ropes, including draglines, cranes, elevators, shovels,drilling rigs, Gantry, winch, suspension bridges and cable-stayed towers.

WIRE ROPE INSPECTIONA).Visual inspection;

Fig-1

B).Electromagnetic method of evaluation of abrasive wear, corrosion and detection of the wire-breaks;C).Radiographic methods;D).Acoustic emission method (detection of the shock wave emitted during the brutal broken wire).

Internal inspection of damage rope: The opening of this cable has revealed that there are actually five internalwire breaks in one section and 10 internal wire breaks in total

Corkscrew-type deformation in rotation-resistant hoisting rope

Broken aluminum sleeve duringa tensile and torsion test

of rotation-resistant hoisting rope

Bird caging caused by a sudden release oftension in rotation-resistant hoisting rope:Strand protrusion/distortion

Rope deformed forming ahull with hernia of the fibercore.

Wire rope subjected to internal and externalcorrosion. Wire rope with indication of crack wires.

Failing rope following corrosion, wear and fatigue

Homogeneous dissolution of the wires with losses ofsection .

Burned zoneROPE DISCARD CRITERIA

Nature and number of the broken wires; broken wires at the termination; Concentration of broken wires; Broken strand. Reduction of the diameter of the rope, including by broken core. Elasticity reduction. External and internal wear; External and internal corrosion. Deformation; Deterioration produced by heat or an electric phenomenon; Rate of increase in permanent elongation

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PROBLEM CAUSE/ACTION

Mechanical damage caused by the rope contacting thestructure of the installation on which it is operating or anexternal structure - usually of a localised nature.

•Generally results from operational conditions.

• Check sheave guards and support/guide sheavesto ensure that the rope has not “jumped out” of theintended reeving system.

•Review operating conditions.

Opening of strands in rotation resistant, low rotation andparallel closed ropes - in extreme circumstances therope may develop a “birdcage distortion” or protrusionof inner strands.

•Check sheave and drum groove radius using sheavegauge to ensure that they are no smaller than nominalrope radius +5% -.The sheave and drum grooveradious are checked prior to any rope installation.

Note - rotation resistant and low rotation ropes are •Repair or replace drum/sheaves i essary.

designed with a specific strand gap which may be •Check fleet angles in the reeving m - a fleetapparent on delivery in an off tension condition.

These gaps will close under load and will have no

effect on the operational performance of the rope.

angle in excess of 1.5 degrees may cause distortion.

•Check installation method - turn induced duringinstallation can cause excessive rope rotationresulting in distortion.

•Check if the rope has been cut “on site “ prior toinstallation or cut to remove a damaged portion from theend of the rope. If so, was the correct cutting procedureused? Incorrect cutting of rotation resistant, low rotationand parallel closed ropes can cause distortion inoperation.

•Rope may have experienced a shock load

Broken wires or crushed or flattened rope on lower •Check tension on underlying layers.An installationlayers at crossover points in multi - layer ngsituations.Wire breaks usually resulting from crushing or abrasion.

tension of between 2% and 10% of the minimumbreaking force of the wire rope. Care should be takento ensure that tension is retained in service.Insufficient tension will result in these lower layersbeing more prone to crushing damage.

•Review wire rope construction. Dyform wire ropesare more resistant to crushing on underlying layersthan conventional rope constructions.

•Do not use more rope than necessary.

•Check drum diameter. Insufficient bending ratioincreases tread pressure

Wires looping from strands. *Insufficient service dressing.•Consider alternative rope construction.*Check for areas of rope crushing or distortion.*If wires are looping out of the rope underneath acrossover point, there may be insufficient tension onthe lower wraps on the drum.

“Pigtail” or severe spiralling in rope •Check that the sheave and drumdiameteris largeenough – a minimum ratio of the drum/sheave tonominal rope diameter of 18:1.

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Two single axial lines of broken wires running alongthe length of the rope approximately 120 degreesapart indicating that the rope is being “nipped” in atight sheave

• Indicates that the rope has run over a small radiusor sharp edge.•Check to see if the rope has “jumped off” a sheaveand has run over a shaft•Check sheave and drum groove radius using sheavegauge to ensure that they are no smaller thannominal rope radius + 5%.T he sheave/drum groove radii are checked prior toany rope installation.•Repair or replace drum/sheaves if necessary.

One line of broken wires running along the length ofthe rope indicating insufficient support for the rope,

Check to see if the groove diameter is no greaterthan

generally caused by oversize sheave or drumgrooving.

15% greater than the nominal ro iameter.

•Repair or replace drum/sheaves if necessary.

•Check for contact damage

Short rope life resulting from evenly/randomlydistributed bend fatigue wire breaks caused bybending through the reeving system.

Fatique induced wire breaks are characterised byflat ends on the broken wires.

Bending fatigue is accelerated as the load increasesand as the bending radius decreases.•Check wire rope construction - Dyform ropes arecapable of doubling the bending fatigue life of aconventional steel wire rope

Short rope life resulting from localised bendwire breaks.

fatigue •Bending fatigue is accelerated as the load increasesand as the bending radius decreases. Considerwhether either factor can be improved.

Fatique induced wire breaks are charflat ends on the broken wires.

rised by•Check wire rope construction - Dyform ropes arecapable of doubling the bending fatigue life of aconventional steel wire rope.•Localised fatigue breaks indicate continuousrepetitive bends over a short length. Considerwhether it is economic to periodically shorten the ropein order to move the rope through the system andprogressively expose fresh rope to the severebending zone. In order to facilitate this procedure itmay be necessary to begin operating with a slightlylonger length of rope

Broken rope - ropes are likely to break when subjected tosubstantial overload or misuse particularly when a ropehas already been subjected to mechanicaldamage.Corrosion of the rope both internally and/orexternally can also result in a significant loss in metallicarea. The rope strength is reduced to a level where it isunable to sustain the normal working load

•Review operating conditions

Wave or corkscrew deformations normally associated with multistrandropes.

•Check sheave and drum groove radius using sheave gauge toensure that they are no smaller than nominal rope radius +5% .

•Repair or replace drum/sheaves if necessary.•Check fleet angles in the reeving system - a fleet angle in excess of

1.5 degrees may cause distortion.•Check that rope end has been secured in accordance with

manufacturer’s instructions.

•Check operating conditions for induced turn.

Rotation of the load in a multi - fall system resulting in “cabling” of therope falls.

Possibly due to induced turn during installation or

operation.

•Review rope selection.

•Consider use of rotation resistant or low rotation rope.

•Review installation procedure.or operating procedures

Core protrusion or broken core in single layer six or eight strand •Caused by repetitive shock loading - review operating conditionsrope.

Rope accumulating or “stacking” at drum flange - due to insufficient Review drum design with original equipment manufacturer -fleet angle. consider rope kicker, fleeting sheave etc

Sunken wraps of rope on the drum normally associated withinsufficient support from lower layers of rope or grooving.

•Check correct rope diameter.

•If grooved drum check groove pitch.

•Check tension on underlying layers an installation tension ofbetween 2% and 10% of the minimum breaking force of the wirerope - Care should be taken to ensure that tension is retained inservice. Insufficient tension will result in these lower layers beingmore prone to crushing damage.•Make sure that the correct rope length is being used. Too muchrope (which may not be necessary) may aggravate the problem

.Short rope life induced by excessive wear and abrasion •Check fleet angle to drum.

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•Check general alignment of sheaves in the reeving system.

•Check that all sheaves are free to rotate.

•Review rope selection. The smooth surface of Dyform wire ropesgives better contact with drum and sheaves and offers improvedresistance to “interference” betweeen adjacent laps of rope.

External corrosion

•Consider selection of galvanised rope.

•Review level and type of service dressing

Internal corrosion •Consider selection of galvanised rope.•Review frequency amount and type of service d essing.•Consider selection of plastic impregnate ) wire rope

Wrong sheavs groove too narrow and too wide

RIGHTSheave groove correctly supporting the rope for WRONG; Note kinks33% of its circumference

forming

Right WrongFOR MORE DETAILS FOLLOW WIRE ROPES AS PER INDIAN

STANDARD SPECIFICATIONS( 1855,1856,2266,2365,2581,2762,13156 )

Good Practice When Ordering a RopeBasic information to be supplied;

Application or intended use: Boom / luffing rope

Nominal rope diameter: 22mm

Diameter tolerance (if applicable): +2% to +4%

Nominal rope length: 245 metres

Length tolerance (if applicable): -0% to +2%

Construction (Brand or Name): Dyform 6x36ws

Type of core: IWRC (Independent wire rope core)

Rope grade: 1960N/mm2

Wire finish: B (Drawn galvanised)

Rope Lay: zZ (Right hand Lang’s)

Level of lubrication: Lubricated internally, externally dry

Minimum breaking force: 398kN (40.6tonnes)

Rope standard: BS EN 12385-4:2004

Supply package: Wood compartment reel

Rope terminations - Inner end: DIN 3091 solid thimble with 43mm pin hole

Outer Fused and tapered

Third party authority (if required): Lloyd’s Register

Identification / markings: Part number XL709 – 4567

Useful additional information;

Equipment manufacturer: J Bloggs, Model XYZ crawler crane

Drum details - Grooved: Yes or No

If Yes: Helical or Lebus

Pitch of grooving: 23.10mm

20. Spooling – Number of wraps per layer: 32

Number of layers: Approximately 3 ½

Conversion Factors S.I. UnitsForce Mass

1 kN = 0.101 972 Mp 1 UK tonf = 9964.02N 1 kg = 2.204 62 lb 1 lb = 0.453 592 kg

1 N = 0.101 972 kgf 1 lbf = 4.448 22N 1 tonne (t) = 0.984 207 UK ton 1 UK ton = 1.01605 tonnes (t)

1 kgf = 9.806 65 N 1 lbf = 0.453 592 kgf 1 kg/m = 0.671 970 lb/ft 1 lb/ft = 1.488 kg/m

1 kgf = 1 kp 1 UK tonf = 1.01605 tonne 1 kg = 1000 g 1 kip (USA) = 1000 lb

1 N = 1.003 61 x 104 UK tonf 1 UK tonf = 9.964 02 kN 1 Mp = 1 x 106 g

1 N = 0.2244 809 lbf 1 UK tonf = 2240 lbf 1 tonne (t) = 9.80665 kN

1 kgf = 2.204 62 lbf 1 short tonf

1 t = 0.984 207 UK tonf (USA) = 2000 lbf Length

1 kN = 0.100 361 UK tonf 1 kip (USA) = 1000 lbf 1 m = 3.280 84 ft 1 ft = 0.304 8 m

1 kN = 0.101 972 tonne (t) 1 kip = 453.592 37 kgf 1 km = 0.621 371 miles 1 mile = 1.609 344 km

Pressure/Stress Area

1 N/mm2 = 0.101972 kgf/mm2 1 mm2 = 0.001 55 in2 1 in2 = 645.16 mm2

1 kgf/mm2 = 9.806 65 N/mm2 1 m2 = 10.763 9ft2 1 ft2 = 0.092 903 0 m2

1 N/mm2 = 1 MPa

1 kgf/mm2 = 1 422.33 lbf/in2 1 lbf/in2 = 7.030 x 10-4

kgf/mm2

1 kgf/mm2 = 0.634 969 tonf/in2 1 tonf/in2 = 1.57488 kgf/mm2 Volume

1 N/m2 = 1.450 38 x 10-4lbf/in2 1 lbf/in2 = 6894.76 N/m2 1 cm3 = 0.061 023 7 in3 1 in3 =16.387 1 cm3

1 N/m2 = 1 x 10-6N/mm2 1 tonf/in2 = 1.544 43 x 108 1 litre (1) = 61.025 5 in3 1 in3 = 16.386 6 ml

dyn/cm2 1 m3 = 6.102 37 x 104 in3 1 yd3 = 0.764 555 m3

1 bar = 14.503 8 lbf/in2

1 hectobar = 10N/mm2

1 hectobar = 107N/m2

INJURY RESULTING FROM SLIP, TRIP, FALL

construction industry employees, injuries resulting from a slip, trip or fall (STF) are the most commonexposures on any jobsite. STF related injuries are often the most frequent, most severe and have the greatestoverall impact on workplace efficiency of any jobsite exposure.SlipsSlips happen where there is too little friction or traction between the footwear and the walking surface.Common causes of slips are: wet or oily surfaces occasional spills weather hazards loose, unanchored rugs or mats flooring or other walking surfaces that do not have same degree of traction in all areas.

TripsTrips happen when your foot collides (strikes, hits) an object causing you to lose the balanceand, eventually fall. Common causes of tripping are:

obstructed view poor lighting clutter in your way wrinkled carpeting uncovered cables bottom drawers not being closed uneven (steps, thresholds) walking surfaces

Trip potential triangle

How to prevent falls due to slips and trips?

Both slips and trips result from some a kind of unintended or unexpected change in the contactbetween the feet and the ground or walking surface. This shows that good housekeeping, quality ofwalking surfaces (flooring), selection of proper footwear, and appropriate pace of walking are criticalfor preventing fall accidents.

INJURY RESULTING FROM SLIP, TRIP, FALLWhat can you do to avoid falling at work?

You can reduce the risk of slipping on wet flooring by:

taking your time and paying attention to where you are going adjusting your stride to a pace that is suitable for the walking surface and the tasks you are

doing walking with the feet pointed slightly outward making wide turns at corners.

You can reduce the risk of tripping by:

Keeping walking areas clear from clutter or obstructions. Keeping flooring in good condition. always using installed light sources that provide sufficient light for your tasks using a flashlight if you enter a dark room where there is no light Ensuring that things you are carrying or pushing do not prevent you from seeing any

obstructions spills, etc.

Pre-plan: Establish safe access and egress routes to and from, in and around construction sites Markaccess routes clearly and keep workers informed of changing routes or conditions Designate individuals toregularly inspect and maintain access routes Establish dedicated material lay down areas, debris and snowremoval plansDevelop Housekeeping(e.g., spill cleanup, daily debris/scrap removal, spill cleanup)Good housekeeping is the first and the most important (fundamental) level of preventing falls due toslips and trips. It includes:

cleaning all spills immediately marking spills and wet areas mopping or sweeping debris from floors removing obstacles from walkways and always keeping them free of clutter securing (tacking, taping, etc.) mats, rugs and carpets that do not lay flat always closing file cabinet or storage drawers covering cables that cross walkways keeping working areas and walkways well lit replacing used light bulbs and faulty switches

equipment maintenance stairs/ramps and handrails fencing walking surfaces, floor and walls openings visitor PPE signage routine inspections of ladders

LightingINJURY RESULTING FROM SLIP, TRIP, FALL

– degrades as walls are put in place Inspect for issues before assigning work Use portable stand lights Use high intensity temporary lighting in larger areas Daily, continuous maintenance of temporary lighting Establish a process for any subcontractor to contact request assistance with lightingDebris on floor– staged construction material, scrape and trash etc. Require frequent trash/scrap removal Designate trash/scrap collection points clear of walkways and work areas. Do not stage piping or other rolling material in walkways.Scaffolding Elevation changes on stairs and stairwell platforms critical– identify and mark if non-repairableMaintain dust/dirt/debris free work platforms Ensure handrails are available in stairwells and changes of elevation requiring a step or more Provide boot cleaning stations at access points to scaffolding where mud is an issue Ensure adequate lighting, especially at elevation change areas, stairwells and access points Ensure workers are trained to recognize STF hazards Ladders Use the correct size, type and capacity ladder for the intended work Inspect ladders regularly to ensure they are in good physical condition Ensure ladders are set up properly and anchored to prevent movement Keep access points clear of scrap, debris, hoses, cords, etc. Keep rungs clear of all tools, cords, etc..

What is a banksman?Banksmen and signallers

Banksmen are operatives trained to direct vehicle movement on or around site. They are often called traffic marshalsBanksmen should only be used in circumstances where other control measures are not possible.What is a signaller?Signallers are operatives who are trained to direct crane drivers during lifting operations.How can we keep signallers safe? ensure that they are trained and competent to direct lifting operations.

provide a protected position from which they can work in safety.

provide distinctive ‘hi viz’ clothing for identification

tell drivers that if they cannot see the signaller they should stop immediately

agree on the use of standard signals

Banksmans signalsTo control reversing operations can put the Banksman in the potential danger area of a reversing vehicle. Make sure theyare trained to carry out their duties safely. There must be a safe system of work that ensures the Banksman and driver areusing standard signals, so that they are easily understood, and that the driver knows to stop the vehicle immediately if theBanksman disappears from view.

What's the Reversing problem?Deaths involving vehicles at work occur during reversing. Many other reversing accidents do not result in injury but causecostly damage to vehicles, equipment and premises.Most of these accidents can be avoided by taking simple precautions, such as those below.

GuidanceA) Setting up one-way systems, for example drive-through loading and unloading positions.

B) Where reversing is unavoidable, routes should be organised to minimise the need for reversing.C) Ensure visiting drivers are familiar with the layout of the workplace, and with any site rules.D) Banksmans are well equipped with PPEs and high visible reflective vest.E) Ensure that vehicles are fitted with reverse horn, beacon light, blind spot mirror.

In locations where reversing cannot be avoided: 'Reversing areas' should be planned out and clearly marked. People who do not need to be in reversing areas should be kept well clear. Consider employing a trained signaller (a banksman), both to keep the reversing area free of pedestrians and to guide drivers. Be aware: The use of signallers is not allowed in some industries due to the size of vehicles involved,

and the difficulty that drivers have in seeing them. A signaller:

o Will need to use a clear, agreed system of signalling.

o Will need to be visible to drivers at all times.

o Will need to stand in a safe position, from which to guide the reversing vehicle without being in its way.

o Should wear very visible clothing, such as reflective vests, and ensure that any signals are clearly seen.

If drivers lose sight of the signallers they should know to stop immediately.

Consider whether portable radios or similar communication systems would be helpful.

The following steps might help to reduce the risk of reversing accidents.

Site layouts can be designed (or modified) to increase visibility for drivers and pedestrians, for example:

o By increasing the area allowed for reversing.

o By installing fixed mirrors in smaller areas.

Reducing the dangers caused by 'blind-spots':

o Most vehicles already have external side-mounted and rear-view mirrors fitted. These need to be kept clean and in good repair.

o Refractive lenses fitted to rear windows or closed-circuit television systems can be used to help drivers to see behind the vehicle.

o If drivers cannot see behind the vehicle, they should leave their cab and check behind the vehicle before reversing

.

Reversing alarms can be fitted:

o These should be kept in working order.

o Audible alarms should be loud and distinct enough that they do not become part of the background noise.

Other safety devices can be fitted to vehicles:

o where an audible alarm might not stand out from the background noise, flashing warning lights can be used.

Where vehicles reverse up to structures or edges, barriers or wheel stops can be used to warn drivers that they need to stop.

White lines on the floor can help the driver position the vehicle accurately.

Construction dust: Specific tasks

Many common construction tasks can produce high levels of dust.

Vehicle movent on dry earth/Loading /Unloadin of crusher dust /dry sandBatching plant/cement feeding point/cement loading unloading/cement store

Cutting paving blocks, Chasing concrete and raking mortar Cutting roofing tiles Scabbling or grinding. Soft strip demolition Dry sweeping Cutting and sanding wood Concrete breaking/pile breaking

HOW TO READ YOUR TYRE SIZEAlong with the manufacturer's name and the name of the tyre there’s always a set of numbers and letters that relateto the size of the tyre.

.

TYRE BASIC INFORMATION

There are numerous other markings on a typical tire, these may include:

M+S, or M&S: Mud and Snow; Spike tires have an additional letter, "E" (M+SE). M+T, or M&T: Mud and Terrain; Designed to perform in mud or on other

terrain that requires additional traction such as on rocks, in deeper snow,and in loose gravel.

205/65R15 95H205 indicates the nominal section width of the tyre in millimetres (205mm).

65 indicates its aspect ratio, a comparison of the tyre's section height with its section width(65 indicates the height is 65% of its width).

R indicates radial ply construction.

15 indicates the nominal diameter of the wheel rim (15 inches).

95H is a symbol indicating the maximum load capacity and speed at which the tyre can besafely operated, subject to the tyre being in sound condition, correctly fitted, and withrecommended inflation pressures (95 represents a maximum load of 690kg per tyre; Hrepresents a maximum speed of 210km/h).

DOT code:Department of Transportation (DOT). It specifies the company, factory, mold, batch, and date ofproduction (two digits for week of the year plus two digits for year;

Tire manufactured in 10th week of 2001

Tyre Speed rating

code mph Km/h Code mph km/h

A1 3 5 L 75 120

A2 6 10 M 81 130

A3 9 15 N 87 140

A4 12 20 P 94 150

A5 16 25 Q 100 160

A6 19 30 R 106 170

A7 22 35 S 112 180

A8 25 40 T 118 190

B 31 50 U 124 200

C 37 60 H 130 210

D 40 65 V 149 240

E 43 70 Z over 149 over 240

F 50 80 W 168 270

G 56 90 (W) over 168 over 270

J 62 100 Y 186 300

K 68 110 (Y) over 186 over 300

BASIC INFORMATION OF MARINE PILING

BASIC INFORMATION OF MARINE PILING & COMPONENTSPile FoundationsPile foundations are the part of a structure used to carry and transfer the load of the structure to the bearing groundlocated at some depth below ground surface. The main components of the foundation are the pile cap and thepiles. Piles are long and slender members which transfer the load to deeper soil or rock of high bearing capacityavoiding shallow soil of low bearing capacity The main types of materials used for piles are Wood, steel andconcrete. Piles made from these materials are driven, drilled or jacked into the ground and connected to pile caps.Depending upon type of soil, pile material and load transmitting characteristic piles are classified accordingly.Classification of pilesClassification of Pile with respect to Load Transmission and Functional Behaviour.

End bearing piles (point bearing piles) Friction piles (cohesion piles ) Combination of friction and cohesion pilesClassification of Pile with respect to type of material. Timber Concrete Steel Composite PilesClassification of Pile with respect to effect on the soil. Driven Pile ( Displacement pile) Bored Pile ( Non Displacement pile)Classification of Pile with respect to Shore. On Shore ( Land Pile) Off Shore (Marine Pile)

Marine PilingMarine piling work differs from land piling work in many respects. Distance from land Depth of water Hydrostatic pressure and buoyancy Underwater currents Wave and swells Tidal variation Wind and storm Cyclone Existing navigation and possibility of diversion etc. Marine PilingOffshore Piling Works:This kind of piling works are mostly carried out in construction of various marine structures like jetties, harbours, ports,wharfs and bridges on river/sea that are away from land.Marine Piles can be installed by Tripod Rig. Rotary Rig ( Wirth Rig or Ordinary Crawler Mounted Hydraulic Rig)

Tripod Rig

Marine PilingDifferent methods commonly used for advancing the bore holes.

End on Piling Gantry ( Temporary movable gantry )Self elevated Platform ( Jack-up platform )Temporary fixed platform supported on temporary/ permanent piles

Jack-up platform Temporary movable gantry Temporary movable gantry

PILING WITH RCD AND JACK UP LINER TRANSPORTING Fixed Platform with Bailer & Chisel

• FabricationA. Fabrication of GantryB. Fabrication of BracingsC. Fabrication of casingD. Fabrication of Reinforcement• Transportation of Liner casing and Reinforcement cage.• Driving of Temporary Piles• Bracing of Temporary Piles• Placing of Wheel Chair and Wheel Blocks.

SEQUENCE OF WORK• Erection of Gantry and Components with equipments.• Guide Frame Fixing.• Installation of Casing.• Pile Boring and Chiseling.• Lowering of Reinforcement cage.• Tremie Lowering and Flushing.• Concreting of Pile.• Shifting of Gantry.• Recording of Data.

SEQUENCE OF WORK• Floating barge/ Pontoon ( 60t -200t)• Crane (capacity 40t-80t)• Vibro-Hammer (Static line pull 360 kN/400 kN)• Tug/Boat (500HP/160H.P.)• Material barge (100 ton capacity)• Gantry platform (complete structural steel assembly).• 5 t Capacity D/D winch with 6YDA Engine/ 3.5 t Capacity D/D winch with 4YDA Engine.

Major Equipments are Required• Piling booms• Bailors & chisels• Flushing system.• 200mm/250mm inner diameter tremie pipes• Concrete funnel (capacity 1cum)• Welding transformer -18 KVA• 40KVA/75KVA & 125KVA D.G. sets• Compressor (300 cfm.)• Fixed Platform fabricated on land.• A’ Frame and winch machine mounted.• If required, counter weight shall be placed.• Fixed Platform will be placed in position by the help of land based crane.• Piles required for erection of gantry shall be done by crane barge using Vibro-hammer.• The crane barge shall be shifted and positioned at an accuracy of half meter.• The fabricated liners shall be held in position with help of Vibro-hammer & crane mounted on crane barge, whichlater shall drive the liner in the seabed.• Balance piles shall be done by gantry platform mounted on wheels.

FABRICATION OF BRACING LINER ROLLLING WELDING LINER PLATE

REINFORCEMENT CAGE WITH COVER BLOCK PILING WITH VIBRO HAMMER

WHEEL BLOCK AND CHAIR SINGLE LAYER PILE BRACING

SETTING OUT OF PILE POINTSThe pile point shall be marked from approved reference points and bench marks provided by the Client.Surveyor shall mark the exact pile point with the help of Total Station and accordingly guide frame shall befixed accurately to Fixed Platform / Gantry.INSTALLATION OF PERMANENT CASINGS• M.S casings are fabricated on land.• Transported to the piling location through material handling barges.• Lifted by Crane & lowered into the guide frame until it rests on the sea bed.• Thereafter driven into the seabed by drop hammer up to the refusal, maintaining the verticality &position.• If found beyond the tolerance then it is retrieved and re-driven in position.• No boring commences until they are checked to be within tolerance.• The top and toe level of the installed permanent casing is recorded.

Liner Placing Liner Inside the Guide BoxDRILLING OF BORE HOLE• Bailers and chisel mechanism is used for boring.• Boring in soil will be done using bailer till the rock level.• Chisel of appropriate weight is used for boring in hard rock.• Bailer is used for removing the muck from the pile bore.• Boring in hard rock is done until the depth in hard rock reaches two times the diameter of pile.• Throughout boring operations the excavated material is monitored and sampled as far as practical, forany visible changes in material make up.

Sr. No Dia. Of Pile in mm Dia of Chisel inmm

Weight ofChisel in tons

Dia of Bailor inmm

Weight of Bailorin tons

1 900 825 Above 2 .0 825 About 1.52 1000 925 2.0- 2.5 925 1.4-1.73 1100 1025 2.5-2.8 1025 1.7-1.94 1200 1125 2.8-3.0 1125 1.9-2.05 1300 1225 3.0- 3.3 1225 2.0-2.2

Boring by bailor Boring by chisel

REINFORCEMENT CAGE INSTALLATION

• The reinforcement cage is fabricated in the cage fabrication yard.• Cover blocks of 75mm diameter are fixed at 4 no. per level at 3m vertical intervals throughout the pilelength.• Reinforcement cage are fed to the ‘A’ frame from the barge with the help of crane.• These cages are lap welded/coupled at site and lowered up to the actual founding level.• An inspection is carried out as per the check list.

Reinforcement cage lowering in pile casing

PILE CONCRETING• Concrete is poured by Tremie Method• After placing the reinforcement cage, Tremie pipe (200mm dia, 1.5m long) elements are assembled and loweredinside the pile.• Tremie pipe connected to a hopper is held by ‘A’ frame.• Borehole is cleaned by air/ water flushing method till clear water is obtained.• The concreting shall be done by using the crane and bucket arrangement from the transit mixture to pile.• The concrete shall be poured into the tremie pipe hopper without interruption.PILE CONCRETING• The bottom of tremie pipe shall at all be embedded at least 3 m into the concrete as being cast into the pile thetremie segment will be progressively withdrawn during the process of concreting. The window (150 mm X 100 mm)shall be provided at pile cut-off level. As concrete is placed into the pile, a cross check shall be carried outcomparing the actual vertical build up of the concrete in the pile, against the theoretical calculated build up concretefor the cast volume of concrete. The contaminated concrete shall be allowed to overflow till the good qualityconcrete is obtained (By visual inspection).PILE CONCRETING• Concrete pour register shall be maintained for all piles.The reinforcement cage is fabricated in the cagefabrication yard.• Cover blocks of 75mm diameter are fixed at 4 no. per level at 3m vertical intervals throughout the pile length.• Reinforcement cage are fed to the ‘A’ frame from the barge with the help of crane.• These cages are lap welded/coupled at site and lowered up to the actual founding level.• An inspection is carried out as per the check list.

TREMIE LOWERINGSEQUENCE OF WORK (JACK UP)•Positioning of Jack Up.• Setting out of Pile Points.• Installation of Casing.• Pile Boring and Chiselling.• Lowering of Reinforcement cage.• Tremie Lowering and Flushing.• Concreting of Pile.• Shifting of Jack Up.• Recording of Data.

Piling By Self Elevated Platform ( Jack-Up)• Surveyor shall approximately mark the pile location by marker buoy with the help of total station.• The Jack up platform shall be shifted to the required location/position of the proposed pile location by a tug/ powerboat.• Then the Jack-Up shall be positioned at an accuracy of half meter to the marked location with help of boats/tugs.• Then the Jack up anchors shall be released from Jack up and Jack up shall be placed in position by tug.

Positioning of Jack Up.• Once the Jack up anchors are placed, the spuds of the jack-upshall be lowered till the sea bed level. Jack up shall be jacked upto appropriate level usually above the cut off level of pile• Survey points shall be marked on the projected guide platform,fixed on to the jack-up platform.• Piling Boom along with Winch shall be centred & installed onthe Jack – up platform.

Positioning of Jack-Up Platform with help of tug

Calculating Breaking Strength, Safe Work Load and Weight of Hawserlaid RopesCALCULATION OF APPROXIMATE BREAKING STRENGTH (B.S) AND SAFE WORKING LOAD (S.W.L) FOR MANILA ROPEMethod of finding the Breaking Strength (B.S) is to divide the square of the diameter of the rope in millimetres by 200.

Example of a diameter 24mmManila Rope:Breaking strength = diameter² / 200

= 24² / 200= 576 / 200= 2.88 tonnes (approx. 3 tonnes)

Safe Working Load (S.W.L)Method of finding the Safe Working Load (S.W.L) is to divide the Breaking Strength by factor of safety.The following factors of safety for ropes are used generally:

Lifts and hoist - 12Running rigging and slings - 8Other purposes - 6

Safe Working Load = Breaking Strength / Safety Factor= 3 tonnes / 6= 0.5 tonnes

CALCULATION OF APPROXIMATE BREAKING STRENGTH (B.S) AND SAFE WORKING LOAD (S.W.L) FOR POLYPROPYLENE ROPE

Method of finding the Breaking Strength (B.S) is to divide the square of the diameter of the rope in millimetres by 77 tonnes.

Example of a diameter 24mm Polypropylene Rope:

Breaking strength = diameter² / 77= 24² / 77= 576 / 77= 7.48 tonnes (approx. 7 tonnes)

Method of finding the Safe Working Load (S.W.L) is to divide the Breaking Strength by a safety factor of 6.

Safe Working Load = Breaking Strength / Safety Factor= 7 tonnes / 6= 1.18 tonnes( approx. 1 ton)

CALCULATION OF APPROXIMATE BREAKING STRENGTH (B.S) AND SAFE WORKING LOAD (S.W.L) FOR POLYETHYLENE ROPE

Method of finding the Breaking Strength (B.S) is to divide the square of the diameter of the rope in millimetres by 106 tonnes.

Example of a diameter 24mm Polyethylene Rope:

Breaking strength = diameter² / 106= 24² / 106= 576 / 106= 5.43 tonnes (approx. 5 tonnes)

Method of finding the Safe Working Load (S.W.L) is to divide the Breaking Strength by a safety factor of 6.Safe Working Load = Breaking Strength / Safety Factor

= 5 tonnes / 6= .83 tonnes

FORMULA TO CALCULATE WEIGHT OF DIFFERENT 3 STRAND ROPES.220 meter coil of Manila/Sisal - d2 /6.6 kilograms220 meter coil of Polyamide(Nylon) - d2 /7 kilograms220 meter coil of Polyester - d2 /5.6 kilograms220 meter coil of Polyethylene - d2 /9 kilograms220 meter coil of Polypropylene - d2 /10 kilograms(Reference: Admiralty Seamanship Vol 2, Page 684)

SCHEDULED CHARGES FOR DISABILITIES *AS PER IS : 3786 - 1983 APPENDIX A

( Clauses 2.8, 2.10 and 6.2. I )SL NO. DESCRIPTION OF INJURY PERCENTAGE OF LOSS OF EARNING CAPACITY EQUIVALENT MAN-DAYSLOST

1 2 3 4Part A Total DisablementI. Death 100 60002. Loss of both hands or 100 6000

amputation at higher sites3. Loss of a hand and a foot 100 60004. Double amputation through leg or 100 6000

thigh, or amputation throughleg or thigh on one side and lossof other foot.

5. Loss of sight to such an extent as 100 6000to render the claimant unableto perform any work for whicheye sight is essential

6. Very severe facial disfigurement 100 60007. Absolute deafness 100 6 000

Part B Partial Disablementa) Amputation Cases -Upper Limbs ( Either Arm )

8. Amputation joint 90 5 400through shoulder

9. Amputation below 80 4 800Shoulder withstump less than 205 mm from tip acromion

10. Amputation from 205 mm from 70 4 200tip of acromion to less than115 mm below tip of olecranon

11. Loss of a hand or’thumb and four 60 3600fingers of one hand or amputation from115 mm below tip of olecranon

12. Loss of thumb 30 180013. Loss of thumb and its metacarpal bone 40 240014. Loss of four fingers of one hand 50 300015. Loss of three fingers of one hand 30 180016. Loss of two fingers of one hand 20 120017. Loss of terminal phalanx of thumb 20 1200

b) Amputation Cases - Lower Limbs18. Amputation of both feet resulting 90 5400

in end-bearing stumps19. Amputation through both feet pro- 80 4800

ximal to the metatarsophalangeal joint20. Loss of all toes of both feet through 40 2400

the metatarsophalangeal joint21. Loss of all toes of both feet proxi- 30 1800

mal inter-phalangeal joint22. Loss of all toes of both feet proxi- 20 1200

mal inter-phalangeal joint23. Amputation at hip 90 540024. Amputation below hip with stump 80 4800

not exceeding 125 mm in lengthmeasured from tip of great trochanter

25. Amputation below hip with stump 70 4200exceeding 125 mm in lengthmeasured from tip of greattrochanter but not beyondmiddle thigh

*Based on Workmen’s Compensation Act ( India ), 1923 as modified up to 1 February 1962.

DESCRIPTION OF INJURY PERCENTAGE OF LOSS OF EARNING CAPACITY EQUIVALENT MAN DAYSLOST

2 3 4

IS : 3786 - 1983SL No.1

Ring OR little Finger26. Whole 7 420

27. Two phalanges 6 360

28. One phalanx 5 30029. Guillotine amputation of

tip without loss of bone2 120

Loss of Toes of Right or Left Foot Great toe30. Through metatarsophalangeal joint 14 840

31.

32.

Part, with some loss of bone

Through metatarsophalangeal joint

3Any other toe3

180

180

33. Part, with some loss of bone 1 160

Two toes of ONE foot excluding great toe34. Through metatarsophalangeal joint 5 300

35. Part, with some loss of bone 2 120

Three toes of one foot, Excluding great toe

36. Through metatarsophalangeal joint 6 360

37. Part, with some loss of bone 3 180

Four toes of on6 foot, excluding great toe

38. Through metatarsophalangeal joint 9 54039. Part, with some loss of bone 3 180

NOTE 1 -

Complete and permanent loss of the use of any limb or memberreferred to in this appendix shall be deemed to be the equivalent of the lossof that limb or member.NOTE 2 - Maximum scheduled charges in case of any injured person shall be6 000

Question 1: WHOAccident Investigation – The Six Key Questions

1. Who was injured? Who saw the accident?2. Who was working with him/her?3. Who had instructed/assigned him/her?4. Who else was involved?5. Who else can help prevent recurrence?

Question 2: WHAT1. What was the accident?2. What was the injury?3. What was he/she doing?4. What had he/she been told to do?5. What tools was he/she using?6. What machine was involved?7. What operations was he/she performing?8. What instructions had he/she been given?9. What specific precautions were necessary?10. What specific precautions was he/she given? Did he/she use?11. What protective equipment was he/she using?12. What had other persons done that contributed to the accident?13. What problem or question did he/she encounter?14. What did he/she or witnesses do when accident occurred?15. What extenuating circumstances were involved?16. What did he/she or witnesses see?17. What will be done to prevent recurrence?18. What safety rules were violated?19. What new rules are needed?

Question 3: WHEN1. When did the accident occur?2. When did he/she start on that job?3. When was he/she assigned to the job?4. When were the hazards pointed out to him/her?5. When had his/her supervisor last checked on job progress?6. When did he/she first sense something was wrong?

Question 4: WHY1. Why was he/she injured?2. Why did he/she do what he/she did?3. Why did the other person do what he/she did?4. Why wasn’t protective equipment used?5. Why weren’t specific instructions given to him/her?6. Why was he/she in the position he/she was?7. Why was he/she using the tools or machine he/she used?8. Why didn’t he/she check with his/her supervisor when he/she noted things weren’t as they should be?9. Why did he/she continue working under the circumstances?10. Why wasn’t supervisor there at the time?

Question 5: WHERE1. Where did the accident occur?2. Where was he/she at the time?3. Where was the supervisor at the time?4. Where were co-workers at the time?5. Where were other people who were involved at the time?6. Where were witnesses when accident occurred?

Question 6: HOW1. How did he/she get hurt?2. How could he/she have avoided it?3. How could co-workers have avoided it?4. Could supervisor have prevented it? How?

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PEP TALK/ TOOL BOX TALK

Date & Topic

Leader

Location

Workers Attending Meeting:

Signature of the engineer.

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