Yellow And White Electrical Wires. Below we have also included some of the more common colour codes used throughout the us and europe in case you have imported appliances and wiring. But looking deeper the color of the wires inside of the sheathing reveals that different colored wires serve different purposes. The mandatory colors for power wiring in national electric codes nec are green bare or green yellow yellow strip or band on green for protective ground pg and white alternatively grey for neutral wire.
Below we have also included some of the more common colour codes used throughout the us and europe in case you have imported appliances and wiring. Instead blue and yellow wires are used as the live wires pulled through a conduit. The 2011 national electrical code required a neutral in every switch box to accommodate new devices like motion sensors occupancy. That means it connects to an electrical panel s neutral bus bar.
For example white sheathing means that the inner wires are 14 gauge and yellow sheathing indicates that they are 12 gauge.
For 12 2 and 107 pounds for 12 3 wire. Yellow and blue electrical wires are also used to carry power but are not for wiring the outlets for common plug in electrical devices. White romex with two wires 14 2 weighs 57 pounds for every 1 000 feet of wire. Green green or bare copper wire isolated ground. Instead blue and yellow wires are used as the live wires pulled through a conduit.