Electrical wires and screw terminals have a color code, which helps you match each wire to the correct terminal. The wire color code is helpful in preventing errors and assesing and remembering ...

One of the first things you learn in electronics is how to identify a resistor’s value. Through-hole resistors have color codes, and that’s generally where beginners begin. But why are they marked ...

The smallest size fixture wire permitted by the NEC is _____ AWG. Article 402 covers the general requirements and construction specifications for fixture wires. As noted in Sec. 402.6, "Fixture wires ...

Romex Extra Color NM-B is a line of nonmetallic cable color-coded by gauge size. No. 14 is white, No. 12 is yellow, No. 10 is orange and No. 6 is black. The colors simplify inventory management for ...