110 volt wiring colors. On dec 06 2019. The wire color codes used are only going to apply to the actual wires that are carrying the electricity. Phase 1 black. To ensure our content is always up to date with current information best practices and professional advice articles are routinely reviewed by industry experts with years of hands on experience.
If you want to do a bit of diy in the home or see what may be wrong with your wires then you will definitely need to know what the different coloured wires generally mean. A cable is a factory made. In that case local custom dictates the optional wire colors. This helps to protect people from accidental exposure and makes it much easier to run the wiring where it needs to go especially for higher voltage situations.
This is required in nec. Residential electrical devices all use a standard color code for wires and terminals and if you follow it its almost impossible to wire a 110v outlet incorrectly. The quickest way to identify house electrical wiring is by its color. These are listed in table below.
Because it is a 220 volt outlet instead of a 120 volt outlet. Now if this is a standard 120 volt outlet that is reading 209 volts then someone has made a mistake in the wiring. In some jurisdictions all wire colors are specified in legal documents. In australia we do things a.
Electrical wiring colour codes. The colour of live wires in home wiring are red and black. Phase 3 blue. All these numbers mean basically the same thing.
Always use a line voltage meter or circuit tester to determine if a wire is hot or live never rely on a wires color alone. In many cases a bundle of these colored wires will be grouped together and sealed within a black or grey cable. Understanding 120240v wiring color code. Residential circuits are rated for 110 115 120 or 125 volts.
If the wiring system has one phase at a higher voltage than the others using a high leg connection that phases wires should be marked with orange. By the way if youre wondering why the outlet you just bought has a label indicating its for a 115 volt plug or a 120 volt plug dont worry. Non metallic or nm 120 volt and 240 volt electrical cable come in two main parts. Ground is bare when in a cable set.
The neutral is white. Although we do highly recommend to leave these jobs to the professionals for safety reasons it is helpful to know the differences. Phase 2 red. Ground green green with yellow stripe or bare wire.
March 9 2018. Identifying house electric wiring colors written by connor doe on jan 30 2010. In other jurisdictions only a few conductor colors are so codified. Depending on where you live the branch circuit wiring in your home will be made with individual conductors run through a hollow metal conduit or with one of three types of cable.
The color of the sheathing indicates recommended usages. The outer plastic sheathing or jacket and the inner color coded wiresthe sheathing binds the inner wires together and its outer markings indicate the number of wires and size of wire gauge within the sheathing.