A 14/3 electrical wire means that it is 14-gauge in size and it has three primary wires plus a ground wire. The three primary wires are red (hot), black (hot) and white (common).. Verify that no power is active before touching any wires.Take a double-pole single-throw switch and study the wiring diagram that comes with the switch. Strip 1/2.. The white LINE neutral wire gets connected to the white wire of the 14/3 cable.. At each switch in the above 3-way switch wiring diagram, the black wire gets connected to the common copper or black screw. In the ceiling light fixture electrical box, one black wire from a 3-way switch gets connected to the black LOAD wire on the light fixture
Every diagram I've seen for wiring 3-way switches with any more than 2 lights between them seem to always call for x2 14/2 (4 conductors) between the lights themselves. Found a nice collection of diagrams here: (Link removed, thanks for the warning!). Two different types of wire cables are used in wiring a standard 3-way switch, most often 14/2 cable and 14/3 cable. The 14 stands for the gauge of wire (rated for 15-amp circuits) and the.