The outer plastic sheathing or jacket and the inner color coded wires the sheathing binds the inner wires together and its outer markings indicate the number of wires and size of wire gauge within the sheathing.
Yellow coated electrical wire.
These colors are used for the live wire pulled through conduit.
For 12 2 and 107 pounds for 12 3 wire.
In nonmetallic sheathed cable nm now purchased used for residential and commercial wiring the outer sheathing color indicates the wire gauge or size and amperage rating of the wire within.
You ll use yellow mainly as switch legs to fans structural lights and switched outlets.
Non metallic or nm 120 volt and 240 volt electrical cable come in two main parts.
There is a significant weight difference between the 14 and 12 gauge romex.
Yellow and blue electrical wires are also used to carry power but are not for wiring the outlets for common plug in electrical devices.
Get free shipping on qualified yellow wire or buy online pick up in store today in the electrical department.
Electrical cable and wire color markings.
The color of the sheathing indicates recommended.
Compare this to the weight of yellow romex at 82 pounds.
Before about 2001 most nm cable had a white outer jacket but since 2001 most nm b cable has been jacketed with a vinyl outer insulation.
However older installed cable may not have this color coding.