Live wires should not be pulled. Any electrical failure or any evidence of undue heating of equipment should be reported immediately to the instructor. All electrical installations should adhere to the standards of the National Electric code. Wiring that is frayed or worn should be eliminated. All extension cords must be UL listed and sufficiently rated for the intended load.
Extension cords are for temporary use only.
Cords shall not be stretched across the floor where they would create a tripping hazard. Nothing may be stored within 3' of an electrical box. All electrical panels and switch gear must be unobstructed. Circuit breakers should be labeled properly. Tape shall not be used to secure any breaker in either an off or on position.