Jeff's experience designing content solutions led him to be one of our first contributors. He helped draft Makey's blueprint and is one of the best explainers of technical details we know.
In most cases, the wiring inside our homes is done by professionals, requiring little knowledge or expertise on the part of the homeowner. However, if you’re looking to wire up a new light fixture or GFCI plug, there’s a good chance you’ll come across terms such as Romex brand or NM cable.
The term NM cable (non-metallic sheathed cable) refers to a type of electrical wire that is typically used in residential and light commercial electrical systems. NM cable is often incorrectly referred to by the brand name Romex, Romex wire, or 14/2 Romex (a trademarked brand of the Southwire Company) in the same way tissue paper is commonly called Kleenex. NM cable generally consists of two or three insulated copper conductor wires, an uninsulated ground wire, and a thick outer thermoplastic sheathing. With most modern NM cables, the color of the sheathing indicates the wire gauge, with one of the most common, 14 AWG wire, typically being white.
There are a few different types of NM cables that are used for different purposes around the house. Here are a few key tips to make sure you choose the right one: