Usa Power Cable Colors

Electrical wiring color codes.

Usa power cable colors.

Power cord color codes. These systems are common in home and office. Allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric current capability with further restrictions on the. Australia also have a different wiring colour standard.

The usa have their own wiring colours for electrical circuits black red and blue are used for 208 vac three phase. 3 277 480 volt ac wiring color codes in usa. The colors adopted as local practice are shown in table below. Brown hot blue neutral green yellow stripe ground.

These are commonly found in home and office settings. In the united states the following color codes are typically used for power wires in branch circuits the wiring between the last protective device such as a circuit breaker and the load such as a tool or appliance. Any other colors except these may be used for other power lines. The uk s new cable colours for plugs are now harmonise with europe s power cable colours for ac dc.

Some of the power wires and cables color codes are mandatory while others are optional. Brown orange and. Black hot white neutral green ground if you use a computer power cord or other cord based on the international wiring color code. 120 208 240 volt ac wire colors.

Brown orange and yellow are used for 480 vac. Us ac the us national electrical code only mandates white or grey for the neutral power conductor and bare copper green or green with yellow stripe for the protective ground in principle any other colors except these may be used for the power conductors. The united states national electrical code us nec has made mandatory color code for neutral power conductors and protective ground conductor. Black red and blue are used for 208 vac three phase.

Electrical engineers contractors traders manufacturers and especially electricians around the world use different electrical wiring color codes for cable and wire installation and electricity distribution in industrial buildings or residential homes. The common color code for three phase in on or behind the wall electrical wiring is shown below. Electrical wiring is an electrical installation of cabling and associated devices such as switches distribution boards sockets and light fittings in a structure. Apart from these mandatory colors any color can be used for line or hot power conductors.

Usa wiring color codes for dc supply. Ac wire colors for 120 208 240 volts. Wiring is subject to safety standards for design and installation. Nec of usa defines green green with yellow stripe bare copper for ground wire.