CONSTRUCTION SAFETY AT 071C20R

Ganapati PMP(I Dip NEBOSH)

Substation & UG LinesSubstation Construction Safety Aspect Foundation/ back filling Excavation SafetyWalls & Columns Scaffolding , WAHSlab & Precast Erection Lifting OperationsTransformer Erection Jack & Slide OperationsElectrical Cabling Electrical & WAH SafetyUtility Installation Safe work practices &

WPGIS installation Lifting ops & work

permitAsphalting Hot work MEPI

Substation & UG LinesUnderground cable work - Safety

Aspect Duct banks Excavation &

Confined SpaceCable Pulling Lifting operations,

Mech hdlgRoad work Traffic Management

,Road Safety , Permits HDD HDD Operational

safety

Modus OperendiThe Plan for Safety is Step 1 Hazard Identification - STARRT, RAStep 2 Stress on house keeping – Daily ½ Hour EODStep 3 Tool box talks & Training Induction ,RMGMStep 4 Daily Observations area wise - Safety officersStep 5 Access Egress Traffic management ,MEPIStep 6 Work Permit System & Job rotationStep 7 Internal & External Audits -CAPAStep 8 Enforcement of PPE Glove selection MSDSStep 9 Daily Weekly & Monthly review meetings

Column & Retaining Wall WorkMajor Safety Consideration with the

column and retaining wall work is work at height and Scaffolding .

All work above 1.8 meters height shall be based on height work permit procedures and as per standard 214.

All ladders shall be inspected and issued through stores ,a register/ log book shall be maintained .

Column & Retaining Wall WorkAll scaffolds shall be erected as per standard 215.The scaffolding shall be used for building up the

rebars , form work and the concreting operations.

All and each individual activity shall not proceed without STARRTalk being conducted by the foreman.

Scaffolds shall be extended in height at strategic locations and these shall be used as anchorage for Personal fall protection where lifelines cannot be erected or are not reasonably practicable

Safety Measures Planned Mobile scaffold and ladders shall be available

for rescue work incase of a fall as the person using fall protection is hung for more than 15 minutes .

The Male nurse is the head of the Initial emergency response team.

Strict Adherence to precautions mentioned in the height work permit, 100% hook up using twin lanyard of the personal fall protection / FBH

Slab Casting & Precast Erection

Major safety consideration for slab casting is work at height and scaffolding as discussed in previous slides.

Precast erection is primarily a lifting operation HHC transfers this risk to an approved Contractor EPC the operations shall not commence without an approved method statement and Risk assessment.

The double tee erection which is the single largest of the operation as well as all other lifts shall be as per standard 221

Lifting Operations The crane operator , lifting competent person

shall all meet the requirements as specified in the standard 221.

The lift calculations shall be submitted well in advance at least 3 weeks in advance to Commencement of operations as per standard 221.

All the sub contractor personnel shall be provided induction and tool box talk apart from STARRT prior to operations.

All rigging equipment shall be issued from store after Inspection &verification of validity of TPC

Manholes hand holes & internal duct banks

Excavation safety - care to obtain permit to dig , excavation work permit , trail pits

Protect employees from cave-ins Barricades , spoil distance maintained Competent person in place Excavation Log TMP showing excavations , MEPI Confined Space Training

Transformer Erection HHC chooses to transfer the risk associated

with Jack and slide operation to the sub contractor who is a specialist in the field .

The Road safety aspect of the movement of the low boy trailer shall be as per the approved RC procedure this will be preceded by a route survey

The use of beams dun nage hydraulic jacks and power packs Present hazards of crushing & falling objects this hall be taken care of by restricting the access to the work area, proper

Traffic safety management for ug works

Blocked roads provided with appropriate signage. Flag man at each end of the blocked roads.(shifts &

supervision ) Concrete barricades for safety. Night lighting to prevent accidents. Dedicadeted banks men for controlling the movement of

construction plant such as dumper, excavator etc., Flags man, blanks men training.(shifts & supervision ) Red man & green man training. Emergency initial response team. Arabic & English signage showing the detour route. Provision of Arabic speaking supervisor. Provision of appropriate paddles flags ,PPE to flags man

& banks man etc.,

Excavation safety management for ug works

Excavation competent person & supervisor to handle the excavation process and the work to proceed under the permit to work system.

Reference to as laid drawings where available if not, use of trail pits for detection of buried services.

Site inspection and survey and identification of over head or buried services prior to issue of work permit.

Protection of workers by ensuring correct design of sloping and shoring systems, use of trench boxes as required.

Prevention of cave in by ensuring that spoil is kept away by a minimum distance equal to depth of the excavation, barricades at a minimum of 6 feet from the edge of the excavation and dewatering done where required.

Restricting the movement of vehicles around the excavation to avoid surcharging, use of stop blocks for preventing plant from falling into excavation.

Appropriate handling of material and equipment.

Red man and green man training to all involved in the work.

STARRT talk on excavation and hazards involved prior to start of work.

Risk assessment and method statement approval prior to issue of permit to work.

Arrangement of access and egress such that a worker will walk a maximum of 25 feet to access exits.

Ladders to extend 1m above the excavation edge.

Regular inspection of excavation by supervisor and excavation competent person.

Excavation safety management for ug works contd….

CONFINED SPACE MANAGEMENT FOR UG WORKS

Any enclosed or partially enclosed space located either above or below ground or deck level where entry is possible and where is a risk of oxygen deficiency or enrichment the accumulation of dust or gases which are flammable or hazardous.

Large enough to enter and work but has limited access or egress.

Not designed for human occupancy.

Where required by method statement and risk assessment RPE and local exhaust ventilation shall be arranged.

All entrants into the confined space shall be trained and certified prior to work.

All confined spaces shall have a dedicated confined space attendant.

Gas testing shall take place prior to start of work and gases in the confined space monitored at 15 minute intervals.

A proper communication plan in place. Emergency response team and

ambulance availability. Fire watch incase of hot works.

Confined space management for UG works contd…