Knowing electrical wire colors guarantee the safety of the appliances, residents, and electricians each time the electrical system is under repair or maintenance. Various colors present the purpose of the wire in the system.
Keep in mind that every wire might carry an electric current at particular times. Thus, you have to treat them with similar caution. It’s vital to know the wires that might present the major risk. These are the hot wires.
The wires that carry live electrical current from the breaker box or electric panel are called hot wires.
Today, we’re going to share with you different electrical wiring colors that can help residents and Bay Area electricians know more about the system.
Bare Copper Wires – Ground
Grounding offers a safe path for electrical current to travel back to the ground if electrical faults occur. Since every electrical system needs to be grounded, the bare copper wire is linked to every single one of them. This includes metal frames, appliance housings, outlets, switches, or fixtures.
In addition to that, electric metal boxes have to be grounded since they’re conductive.
Green Wires – Ground
Green wires are utilized to ground electrical circuits. A wire is connected to a grounding terminal inside the strongbox of an outlet. Then, it runs toward the electrical panel’s ground bus bar.
With this, the purpose of the wire is to be a failsafe. It offers electrical current somewhere to escape in the ground if any live wire comes into contact with conductive materials, such as metal.
You should only connect green wires with other green wires. Also, green wires might be live if a fault happens in the system. That’s why you have to be cautious. In addition to that, green wires must not be utilized for any other uses since it might present the risk of electrocution.
Oftentimes, ground screws on any electrical system are painted green as well.
Yellow and Blue Wires – Hot
Yellow and blue wires might carry current. However, they aren’t typically utilized in the wiring of an outlet. They rather act as hot wires pulled through the conduit. For example, yellow wires might serve as switch legs to ceiling fans, structural lighting, or outlets joined with light switches.
On the other hand, blue wires are typically utilized as travelers in 3 or 4-way switches. One great example is the switch at the top and bottom of your staircase controlling a single light. This is known as 3-way.
Red Wires – Hot
This is one live wire in 220V circuits and could be used in different switch legs. Usually, red wires are utilized to connect the power system of the house. They’re also utilized when installing ceiling fans.
Black Wires – Hot
This wire color is used for wires that transfer current to switches and outlets in every type of circuit. In addition to that, they can also be utilized as switch legs. Switch legs are the connection between the electrical load and the switch. Every black electrical wire is considered live every single time. That is why if you’re dealing with them, you’ve got to be cautious.