House Wiring Electrical Cable Types List

Nec reference tables 2014 2011 2008 2005 2002 and 1999 electrical the basics.

House wiring electrical cable types list.

Knowing the basic wire types is essential to almost any electrical project around the house. How to identify wiring and cables on wiring jackets you ll see a letter code which provides attributes of the wire including material gauge and voltage rating. When you re installing new wiring for example choosing the right wire or cable is half the battle. Wire types and sizing.

The types of cables that can be used in residential electrical installations are as follows nonmetallic sheathed cable. And when you re examining existing wiring in your home identifying the wire type can tell you a lot about the circuit the wiring belongs to for. This may require using 3 wire cable or two 2 wire cables where you may have used one 2 wire cable in the past. The installation of the electrical wiring will depend on the type of structure and construction methods being used.

The electrical wiring system in most homes is created with non metallic sheathed wire nm. Wire gauge and voltage drop calculator. Types of electrical wiring. You ll also learn how to choose between electrical cables and wires for your projects.

Rough in electrical and pulling cable. For example a stick frame home consisting of standard wood framing will be wired differently than a sip or structured insulated panel home because of access restrictions. This cable is used in the least expensive wiring method. Nm and nmc conductors are composed of two or more insulated conductors contained in a non metallic sheath.

Common electrical wiring diagrams. 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. Residential electricians call nonmetallic sheathed cable of type nm as romex. Use a black or red wire to supply power from a switch to a light or switched receptacle.

Frequently asked electrical questions. Commonly called romex this wire has 2 3 conductors as well as a bare ground wire and it s coated in. Residential electrical guidelines and codes. For clarity all grounding conductors in the circuit wirings are colored green.

Below we ll provide some helpful information to make it easier to identify the many types of wiring available. We ve separated the guide into two sections. The national electrical code nec has a letter system that makes it.