Hot Neutral Ground Colors
Brown orange and yellow are used as hot wires and gray is used as the neutral wire in a 277 480 v.
Hot neutral ground colors. Using the screws that came with the unit attach the bracket on the ceiling. However the neutral and ground wires serve two distinct purposes. Beyond that are general industry accepted rules about wire color that indicate their purpose. Ensure you tighten the bracket on the ceiling well to avoid creating a wobble when the fan spins around.
Electrical convention and the national electric code prescribe these colors as described on the international municipal signal association website. The white wire is the neutral or return leg of the circuit the green is the ground wire making the black or red wire the hot one. Neutral wires should be white. The us national electrical code for both ac and dc mandates that the grounded neutral conductor of a power system be white or grey.
And ground wires are often plain copper but the ground wire color can be green. 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. According to nec a black or red wire must be used as an ungrounded conductor or hot wire. In contrast the ground wire is connected to any metal parts in an appliance such as a microwave oven or coffee pot.
In this case the colors of the wires are green ground white neutral black hot wire and brown hot wire. However if you see a white wire with electrical tape on it that may indicate that it s being used as a hot wire. Hot active wires may be any other colors except these. For grounding regardless of the voltage green or a bare wire is used.
In fact any color wire except white gray or green may be used in conduit to carry ungrounded power. The neutral wire forms a part of the live circuit along with the hot wire. No wire with any of those colors can be used for establishing a ground or neutral connection. But looking deeper the color of the wires inside of the sheathing reveals that different colored wires serve different purposes.
Like the neutral wire the ground wire is also connected to an earth ground. 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. The protective ground must be bare green or green yellow striped. White and gray neutral green bare and greenw yellow stripe ground all other colors hot this is the norm orange 277 yellow brown 480 but exceptions to all this if you dont know what your doing play plumber you just get the floor wet.
However common practice per local electrical inspectors is for the first hot live or active wire to be black and the.