Hot Neutral Ground Colors
There can be other colors of hot wires in some systems as well but black is the most common.
Hot neutral ground colors. The us national electrical code for both ac and dc mandates that the grounded neutral conductor of a power system be white or grey. However the neutral and ground wires serve two distinct purposes. Like the neutral wire the ground wire is also connected to an earth ground. However common practice per local electrical inspectors is for the first hot live or active wire to be black and the.
Its primary function is to complete an electrical circuit for household fans. The four ceiling fan wire colors and their functions include. The voltage rating is 250 v. Fortunately the color coatings around the copper conductor of the wire give you all the clues you need to know as to what each wire does and whether it s hot neutral or ground.
Of the straight blade nema 14 devices only the 14 30 and 14 50 are in common use. In contrast the ground wire is connected to any metal parts in an appliance such as a microwave oven or coffee pot. And ground wires are often plain copper but the ground wire color can be green. Hot active wires may be any other colors except these.
The neutral wire forms a part of the live circuit along with the hot wire. Brown orange and yellow are used as hot wires and gray is used as the neutral wire in a 277 480 v. Black red and blue are used for hot wires and white is used as the neutral wire in a 120 208 v circuit. The national electrical code nec says that white or gray must be used for neutral conductors and that bare copper or green wires must be used as ground wires.
However if you see a white wire with electrical tape on it that may indicate that it s being used as a hot wire. Beyond that are general industry accepted rules about wire color that indicate their purpose. The protective ground must be bare green or green yellow striped. These codes apply on both ac and dc power circuits.
Any other colors can be used for hot phase wires. It is a hot or live wire. This is incredibly important to know before you start any kind of home wiring project as well as essential to your safety so let s explore what these colored wires mean and when to use them. When installing the device connect this wire to an earth ground or any other neutral wire in your home s electrical wiring.
For grounding regardless of the voltage green or a bare wire is used. Neutral wires should be white. The nema 14 devices are four wire grounding devices hot hot neutral ground available in ratings from 15 to 60 a.