Which wire goes on the gold screw?
The black (hot) and white (neutral) wires carry the current, and the copper wire is the ground. Note that the outlet's screw terminals are certain colors. The white wire goes on the silver screw. The bare copper or green wire goes on the green screw.
The wide prong on the plug links the threaded base of light bulbs to the neutral terminal (the wider slot) in the receptacle. If the wires are reversed, the hot side of the outlet (the side that can deliver a shock) is wired to the threaded socket.
- A polarized plug will have one prong wider than the other, which is the neutral, and usually silver-colored prong. The hot prong will be narrower and usually gold colored. With a non-polarized plug, you can wire either wire to either prong.
- The protective ground is green or green with yellow stripe. The neutral is white, the hot (live or active) single phase wires are black , and red in the case of a second active. Three-phase lines are red, black, and blue.
- Step-by-step guide to wiring a plug
- Unscrew the plug cover. Loosen one flex clamp/cord grip screw, remove the other.
- Remove the fuse. Carefully lever it out with a screwdriver if necessary. Loosen terminal screws. Warning.
- Finally check: Wires are connected to the correct terminals. There are no stray 'whiskers' of wire.
Updated: 26th November 2019