osha wind farms
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Wind Farm SafetyWind Farm Safety
John Newquist, CSPJohn Newquist, CSP Assistant Regional AdministratorAssistant Regional Administrator
OSHA Region VOSHA Region VFebruary 4, 2008February 4, 2008
2025
• "Illinois is in the middle of a wind power boom. There's more wind power in development in Illinois right now than any other state in the country," said Howard Learner, Environmental Law and Policy Center.
• That's because Illinois has wind, a power grid easily reached, a big market and now a new law that says by the year 2025, 25 percent of the electricity Illinois needs must come from renewable sources - most of that would be wind power
How Many are Out There?
13384 built so far.
Wind Farm Standards
1910.269 applies for maintenance
Issues
• 1 descent control – 4 ees
• Compatibility of electrical systems from foreign manufacturers
• Transformer put up in newer Nacelles
• Smoke detection
• LOTO at bottom
• Take Harness off to move around in module
Issues
• Tower vibrations and fatigues in structures• Confined space• 4 minute first aid rule• 70E• Fire extinguisher monthly inspections• Equipment turning over – cranes
dumptruck• Road Buckles
issues
• Undergrowth is difficult to walk through• 24 hour operation during construction • Cranes lifting at maximum capacity• Different components for different
manufacturers makes electrical hookup difficult.
• Fall Protection• Compressed Gas Cylinders – dropped
when hoist, fire source in turbine
Issues
• Rigging• Climbs of 200 feet• Excavation for pads. • Housekeeping – oil leaks• Temperature extremes – cold and hot• RT Forklifts• Concrete truck maintenance• Curious spectacles watch erection
Issues
• Where is the clinic?
• Spiders, snakes, and wasps
Hiring
• ~70% of the labor hired will be local and not familiar with wind towers
• This requires expanded safety and health orientation
New Maintenance Employees
• Experience sore elbows and forearms from using the torque wrenches wrong
• Foot path to tower is often rough
• Maybe have to climb 3 towers in one day.
• Many try to carry too much from the truck to the tower base instead of doing lighter loads and more trips.
Fit for Duty
• Workers tested every 2-3 years
• Tests measure flexibility, strength, andcardiovascular. Exams are ~$500 each.
• Climbs are up to 250 feet.
• Young people new to the area and towers are not hardened to the work.
Tower Erection
Tower Erection
Tower Erection
Raising the Nacelle
Critical Lifts
Anyone Up for a Short 250 ft. Climb?
Entry
Inside the Nacelle
Fires
Base support
Oil leaks
8/26/2007
Machine Guarding
• Fall arrest can be caught in gear boxes
Lockout
• Recent lock out directive.
• No grandfathering in directive
•
Electrical
• Proposed NPFA 850 standard
• 1910.269 applies.
• Turbine will have exposed electrical
• Industry should be using Voltage rated tools and Class 2 clothing
Fire Protection
• Industry can use fire resistive lubes and hydraulic fluids
• Most fires are electrical
• Hazard of putting transformers in the tower
• Brake pads of copper prevent shower of sparks unlike metallic ones.
• Local alarm should be tied to wind turbine controller with audible alarms throughout.
Fire Protection
• Elevated temperature alarms should be provided to warm of overheating
• Tough to use total flooding in open ventilated area
• Water will freeze in many climates
Falling Objects
• Tools are the most common object that fall while hoists or climbing.
• Hoisted cylinders have also fallen.
Confined Space
• One way out• Fire hazard from
oil and smoke from electrical
• Electrical• Thermal• Mechanical• Transformers
now inside many new ones
Rescue
• They have to be taught self rescue
• Many bring out the local FD to show them how rescue is to be done.
• Many have first aid kits in tower and AED in trucks.
Transformers
• All over 1300 gallons• Containment is needed
per 40 CFR 112• Companies have to train
employees how to handle spills.
• Glass will fly 300 feet if a fire on a transformer is hit w ith water.
• Do not put new transformer in front of escape door.
Fall Protection
• ANSI Z359.1 -2007 requires 3600# gates on snap hooks.
• Workers need to be trained in what to look for when inspecting fall arrest equipment.
Shadow Flicker
Websites
• American Wind Energy Association at www.awea.org
• British Wind Energy Association at www.bwea.com
• 2005 Guidelines
• Wind Turbine Safety Rules
• http://www.windpower.org