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When working with ladders or long tools:
Stay at least 10 feet away from overhead power lines carrying up to 50 kV.

When cranes or derricks are used in construction:
The operator of such equipment must maintain 20 feet of clearance from lines up to 350 kV and 50 feet of clearance from lines greater than 350 kV but at or less than 1000 kV until the operator has taken specific safety measures. Always assume the lines are energized.

As voltage increases, clearance distances also increase.
Consult OSHA at www.osha.gov for specific safety clearance requirements.

Clearly mark boundaries.
Use tape, signs, or barricades to keep workers and equipment the required distance away.

 

Contact OSHA at www.osha.gov for safety clearance distances and your utility for the appropriate facility protection.

 

 

Worker marking boundary