Electrical installations over 600 volts that are open to unqualified persons must be surrounded with a metal enclosure or enclosed in a vault and controlled by a lock. Ensure that overcurrent devices are readily accessible and not located where they create an employee safety hazard. Ensure that the line remains de-energized without a lockout and tagout procedure. Use insulated protective equipment when working on or near high voltage circuits. Keep a safe distance from energized lines.
Electricity is an extremely powerful tool.
Keep it from becoming a deadly one by recognizing hazards and taking the necessary safety precautions.