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Answer for USA, Canada and countries running a 60 Hz supply service.
Depending on the insulation, these wires can be used for anything except grounds and neutrals. In commercial and industrial settings, black/red/blue are colors usually used for 120/208v 3-phase systems. This is an industry standard, not a code requirement. In homes, black and red are used for each leg of the single phase 120/240v system. But again, this is not a code requirement.
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agogreen, blue and red cables are primary colours, therefore using the three primary colours for cables helps to create the colours. Computers and televisions have them cables for colour to appear on the screen:)
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Which of the two wires is hot which is neutral?
If this is a home wiring question and the wires are black and white then black is Hot and white is Neutral. If you also have a red wire, it is the other hot wire, and either the black or the red wire to the white one would be 120 volts, and red to black would be 240 volts.
What two wires connect to the timer switch on a century 87423 battery charger?
The two wires which connect the timer switch on a Century 87423 battery charger are the red and black wires. The red goes to the positive connector while the black goes to the negative connector.
Your wall cooker socket wires are black green and red which is which?
Red - active, (commonly known as your live cable) Black - Neutral Green - Earth
How do you install 220 receptacle with white black and bare wires?
Assuming the wires are the correct gauge for application and breaker you use black and white wires as hot. Put red electrical tape on each end of white wire and connect red and black to the breaker output and bare wire to ground lug in panel. At receptacle connect black and red to hot contacts and bare wire to ground lug.
How do you fix an electric baseboard heater?
first of all you buy a double pole unit thermostat which should come with the mounting plate and thermostat and it should have 4 wires 2 red 2 black okay now you join the red to the red power wire and black to the black power wire and the 2 remaining wires which should be a red and black can be joined to the red and black wires on your heater .....now you should be good to go ............LEE48
What wires go brown and blue from old fashion red black wiring?
red - brown black - blue green/yellow - green
Are there only 7 plug wires on your motor?
there is 7 wires that come out of the motor colors are yellow,blue,orange,black red , red with a black line, tan
What are the 1995 ford escort radio wire colors?
The radio colors in a 1995 Ford Escort include blue and red, blue and black, and red and black. Wires can also be violet, blue and orange, blue and white, red and blue, and white and green.
What colors of red black and white on car wiring correspond to blue white and yellow wires on replacement power mirror?
White to Yellow, Black to White, Blue to Red.
What is the power door lock wires 1993 sl500?
red and black is green and blue.
What are the CD player wire colours mean?
Red is hotwire, black is groundwire, blue is the remote wire or clock and memory, these are your main wires the rest are speaker wires.
Why are the Chicago Cubs colors red blue and white?
red white and blue
If you have a circular light bulb there is two wires black and red you want to replace them with a standard power cable blue brown and yellowgreen Which goes where What is black and what is red?
the old colours are black and red, they have been replaced by the European harmonisation of brown and blue. the black is now the blue the red is now the brown and the yellow and green is the CPC ( circuit protective conductor) or more commonly known as "earth" but that's a wrong identification of it.
What wire color is positive white black or blue?
Black, for 110 volt, but don't count on everyone doing it right. For 220 there are two hot wires, usually black and red, but blue might be run in metal conduits.
How do you connect the red-yellow and blue-white wires on a 1985 Honda to a JVC KD-S640 with power ground red accessory and blue-white wires?
on your car the white w/blue stripe is 12 volt power you connect it to the yellow on the jvc stereo and the yellow w/ red stripe is the 12 volt accessory connect it to the red on the jvc stereo and connect the jvc stereo ground (black) to your cars black wire on the harness
What color is the ground wire in a computer?
Inside the computer, the various ground wires are black. Computers use direct current inside. The wiring color differs from AC, where both red and black wires are hot wires, white is neutral, and green or bare is ground. In a computer, the red and yellow wires are positive wires of different voltages.
What polarities red wires and black wires indicates in case of dc measurement?
In typical DC circuits, Red = Positive, Black = Negative.
