Lighting Wiring Red Yellow Blue
Blue and yellow wires are sometimes used as hot wires inside an electrical conduit.
Lighting wiring red yellow blue. It is used as the common return wire with all of the other accessory or lighting wires. Phase red. For example front light white blue rear light yellow blue.
Blue and yellow wires are most commonly found in commercial buildings and are used as the live wires pulled through a conduit. In 220-volt circuits red wires are the secondary live wires. The earth conductor must have the same diameter as the other conductors and be separately insulated yellowgreen - so no twin and earth should not be used and does not conform to the NFC 15-100 wiring regs.
Blue Electric Brakes or Hydraulic Reverse Disable See Blue Wire. Not forgetting to sleeve it YELLOWGREEN Check to see if there is an earth as I said above. Blue wires are commonly used for travelers in a three-way and four-way switch applications.
The earth wires in the cable are bare copper and must be covered with greenyellow striped sleeving. Before the introduction of BS 7671 line 2 in any three-phase wiring was yellow. Earth green or greenyellow.
Brown or black wires should be used for hot and live wires. 4 rows To harmonise wire colours 2-core cable changed from live red to live brown neutral black to. Solder pre-tinned wires onto the solder pads of the first strip.
Switch drops from a junction box. Black wires are for single live wires red for second active wires and blue for three-phase active lines. These colors are used for the live wire pulled through conduit.