Residential electricians call nonmetallic sheathed cable of type nm as romex.
House wiring electrical cable types list.
Types of electrical wiring.
Wire gauge and voltage drop calculator.
The types of cables that can be used in residential electrical installations are as follows nonmetallic sheathed cable.
Knowing the basic wire types is essential to almost any electrical project around the house.
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.
You ll also learn how to choose between electrical cables and wires for your projects.
Frequently asked electrical questions.
This cable is used in the least expensive wiring method.
Wire types and sizing.
We ve separated the guide into two sections.
The electrical wiring system in most homes is created with non metallic sheathed wire nm.
Residential electrical guidelines and codes.
The installation of the electrical wiring will depend on the type of structure and construction methods being used.
Nm and nmc conductors are composed of two or more insulated conductors contained in a non metallic sheath.
This guide will teach you the difference between types of electrical wires and types of electrical cables.
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.
The coating on nmc cable is non conducting flame resistant and moisture resistant.
When you re installing new wiring for example choosing the right wire or cable is half the battle.
The national electrical code nec has a letter system that makes it.
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.
For clarity all grounding conductors in the circuit wirings are colored green.
Common electrical wiring diagrams.
Rough in electrical and pulling cable.
Below we ll provide some helpful information to make it easier to identify the many types of wiring available.
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.
Use a black or red wire to supply power from a switch to a light or switched receptacle.
Nec reference tables 2014 2011 2008 2005 2002 and 1999 electrical the basics.