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Whether adding a home appliance or industrial machinery, you’ll need to know these electrical wiring color codes. In the U.S., these color-coded wires carry power from a circuit breaker to a device.
Ready to cross that electrical project off your to-do list? Understand wiring color codes so you can finish the job safely.
In this tutorial, we will discuss the different wiring color codes for AC (single-phase and three-phase) and DC power systems according to the NEC and IEC standards.
Wire color codes or cable color code charts for both AC and DC are classified based on national standards for each region. You may find different colors in different countries, so that’s why we need to check it by ourselves or consult a professional.
Wire color codes are black, red, white, bare copper, green, white or gray, and blue or yellow. White, gray, bare copper, and green are the only wire colors that the NEC mandates must indicate a specific purpose.
Wiring color codes used for electrical wiring has a specific meaning with different colors for different types and purposes of circuits. Electricians and contractors understand these codes. For those who want to learn, a simple guide can help to understand their meaning .
Wiring for AC and DC power distribution branch circuits are color coded for identification of individual wires. In some jurisdictions all wire colors are specified in legal documents. In other jurisdictions, only a few conductor colors are so codified. In that case, local custom dictates the “optional” wire colors.
Electrical engineers and electricians follow predefined wiring color codes while wiring houses, commercial buildings and industrial panel boards. It is mandatory to know the electrical wiring color codes before attempting any kind of repair works yourself.
Understand electrical wire color codes when wiring a switch or outlet. The USA follows a standard home electrical wiring color code that identifies every wire in an electrical circuit.
Learn the standard colors used in electrical wiring in the United States with our easy-to-read color code chart. Make sure your wiring is safe and up to code.