![]() Generally, buildings have electricity coming in at one point before distribution to other parts using a series of wires. Three Phase Wire Color Code from IEC Benefits of Wire Color Code Most of Europe abides by this code and the table below contains the code details. Three Phase Wire Color Code for Low and High Voltage from NECĪnother common wire color code for three-phase systems is that of the International Electrotechnical Commission, more commonly known as IEC. For example, In the USA, the National Electric Code (NEC) is different for low voltage (120/208/240V) and high voltage (277/480V) as the table shows. Thus, it is necessary to be abreast with whatever standard in use to avoid the catastrophic effects of misconnection. ![]() Even within the same region/standard there could be a variety in color codes between single phase and three phase, as well as between high and low voltage. ![]() One color in a certain region could have a different implication in another region. Wire color codes vary according to the region in line with the governing standard. In this article, we will review what the three-phase wire color code is, its benefits, and frequently asked questions on the concept. The configuration uses three live lines, a ground wire, and a neutral wire at times. Three-phase supply uses either four or five wires. ![]() Electrical wire color code for three-phase applications provides a standard means of identifying individual wires.
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