Yellow Coated Electrical Wire

Electrical cable and wire color markings.

Yellow coated electrical wire.

Non metallic or nm 120 volt and 240 volt electrical cable come in two main parts. For 12 2 and 107 pounds for 12 3 wire. 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. Yellow winged electrical wire end connectors caps bulk 500 pack small twist on wire connectors nuts 18 10 awg hs p11 type screw terminals 4 6 out of 5 stars 43 26 99 26.

With three wires 14 3 the weight increases to 74 pounds. 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. White romex with two wires 14 2 weighs 57 pounds for every 1 000 feet of wire. Yellow and blue electrical wires are also used to carry power but are not for wiring the outlets for common plug in electrical devices.

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. There is a significant weight difference between the 14 and 12 gauge romex. These colors are used for the live wire pulled through conduit. However older installed cable may not have this color coding.

Compare this to the weight of yellow romex at 82 pounds.