These are generally placed in an electrical conduit. Other hot wires include blue wires and sometimes yellow wires. Blue Electrical Wires = Hot (& sometimes Yellow) In Canada wiring colours, 2 red wires can be linked together, and you can also link together red and black wires. More specifically, red wires are used as the second hot wire in 220-volt installations. You’ll find red wires in use to power smoke detectors that are hardwired to your electrical system. Not unlike black wires, red electrical wires are also used for hot wires, although they are primarily used for switch legs (like for a ceiling fan). Note: Other Canada wiring colours that are hot include red and blue wires, which have different functions besides powering outlets (see details on red and blue wires below). ![]() It goes without saying but always bears repeating, do not touch a hot wire of any colour unless there is no connected and operating power source. They are always carrying electricity, which means it is dangerous to touch a hot wire while there is a power source feeding it. What exactly is a hot or live electrical wire? A hot electrical wire is used as the initial power feed to a circuit and acts as the carrier or conductor of electrical current from the power source to the outlet where it is required. Black wires are used primarily to feed current to power electrical outlets and switches, which in turn, power the appliances and lights in the home. Black Electrical Wires = Hotīlack is the main colour of hot wires for most homes – hot wires are those that are always carrying a live electrical current. Now that we know the basics of our Canada wiring colours and how they function, let’s take a more detailed look at each of the colour codes and the functions they denote.
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