Types Of Electrical Wiring Romex

The coating on nmc cable is non conducting flame resistant and moisture resistant.

Types of electrical wiring romex.

Normally the cables carry 10 12 or 14 gauge conducting wires for individual house circuits. The most common types of romex are rated only for indoor use and come in 14 and 12 awg wire sizes. Nm cable also commonly known by the common trade name romex is the most common form of electrical wire nm cable is simply a bundle of individual conducting wires wrapped in a plastic vinyl outer sheathing. The romex name comes from rome cable corp.

The national electrical code nec and local building codes regulate the types of electrical wires and cable that can be used in specific electrical applications as well as the manner of installation. In this article we ll show you some house wiring basics how to position outlet and switch boxes and run the electrical cable between them. Nm and nmc conductors are composed of two or more insulated conductors contained in a non metallic sheath. Nm 14 2 romex has a black insulated wire a white insulated wire and a bare ground wire all 14 gauge.

In order to understand the different types of wiring systems in your home it is important to first know the basics of electrical wiring. Also called non metallic nm sheathed cable romex consists of two or three thhn wires and a ground wire. The cable includes a bare ground wire wrapped in paper. Art plumbing ac electric is here to explain the basics of home wiring by looking at the different types sizes and colors of electrical wires.

Of rome new york which originally produced the cable. An electrical wire is made up. Check with your local building inspector before you start any electrical wiring and cable project and be sure to obtain required permits. There are a variety of cables and connectors that offer different uses from doorbell wiring and thermostat wiring to speaker wire ethernet cord wires weatherproof wiring connectors and more.

Romex nm cable pronounced rome ecks and competing brands of cable contain two or more insulated conductors wires in a flexible plastic sheath that can be run through walls under floors through attics and so on. Manufactured by southwire romex is a widespread type of residential wiring used in many home applications. Electrical wiring and electrical connectors are essential. Origin of romex brand wire.

Romex is a cable of two or more wires enclosed in a plastic or rubberized sheath. Romex is a common type of residential wiring that is categorized by the national electrical code nec as underground feeder uf or non metallic sheathed cable nm and nmc. Plastic boxes and flexible nonmetallic cable commonly called romex put electrical wiring projects within the skill range of every dedicated diyer. We won t cover many other house wiring details.

There are four main types of romex wires each delivering different amperage and denoted by a separate color for quick. The company was an industry leader until it filed for bankruptcy in 2003 and its factory was largely demolished in 2010.