When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Color coding is really nothing new--radio component manufacturers started doing it in the 1920s.

Wire color codes are essential for safely matching electrical wires to their correct terminals, reducing errors, and recalling existing wiring setups. Color coding is crucial for distinguishing ...

Ethernet cables can come in handy, but have you ever wondered why they are mostly yellow? Here's what the color commonly means.

First on the electrical wire color code is black. “Black wires are most used as ‘hot’ wires in residential systems,” says ...