Why is electrical wire in different colors?

Electrician Connecting WiresWe’ve all seen those shows. The bomb is ticking and the hero has to decide which wire to cut to stop the timer. Did the bad guy change the colors to make it confusing? Luckily in our homes, the wires have been color coded and installed to make things as easy as possible to make changes to our electrical system.

Types of Wire
Hot — The job of a “hot” wire is to deliver power to a destination.
Neutral – A “neutral” wire completes the electrical circuit.
Ground – A “ground” wire is a safety measure. Put simply, an electrical spike sends the extra power through the ground where it can cause a circuit breaker to trip.

Common Wire Colors Used by Certified Electricians
Black Wire is always hot.
White Wire is neutral (but can change to live if marked accordingly).
Green Wire is always a ground wire.
Red Wire is always hot and used more in switch wiring.
Yellow and Blue Wire is less common, but if used are hot wires.

Never guess or assume! Always shut off the power when working with electricity. All electrical home projects should be done carefully to ensure the safety of your home.

Always connect wires of the same color, and as an added precaution use insulated tools when working with or even around electrical wires. Remember to err on the side of caution when dealing with electricity.

Douthit Electric has been providing Charlotte with quality electrical services since 1990. When you need electrical service or installation, check out our money saving coupons and give us a call!


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