Electrical Extension Cords
Electrical extension cords are numerous on construction sites and become damaged because of the rough conditions in which they are used.
Inspect to ensure:
- All extension cords are three-wire cords
- The ground pin is on a male plug
- There is no unbroken insulation on the cord
- End appliances (plug and receptacle) are gripped to insulation
- All wires are continuous and unbroken
- All cords are protected from damage, likely to occur when passing through a door or window
- Metal boxes with knockouts are not used on extension cords
- Plugs are dead-front (molded or screwed in place)
- Romex (non-metallic sheathed cable) is not used as flexible cord
- Cords are not stapled or hung from nails
- Bushing is passing through holes in covers or outlet boxes
Guard all of exposed electric of more than 50 volts so no one can come in contact (receptacles, light-bulb sockets, bare wires, load center, switches).