how do i know the difference between the black and red wires while hooking up a 220 line one is al and cu?

Answer 1

You will normally have four wires in a 220v cable: red (hot), black (hot), white(neutral) and bare copper(ground). The voltage across either the red and the white wire or the black and the white wire would be 110v. The voltage across the red and black wires would be 220v. I can't imagine you having aluminum and copper in the same cable. It might be this cable was made in China in which case I would toss it. Aluminum and copper together is a bad idea, but in China life is cheap, if something blows up and burns down it's just that much room for someone else. Remember, China is a communist country using slave labor and they do not have the same standards we do in the US.

Answer 2

Normally if they are paired (no other wires), the red wire is the hot wire (positive) and the black wire is the negative. Sometimes in wiring though, the red wire is used to denote the positive wire for a dimmer where the black is use to represent the full strength positive wire. For instance like on a ceiling fan, if you had a dimmer switch and a fan switch on the wall, the positive wire for the dimmer switch would be red and the positive wire for the fan switch would be black.

That's all the info I can provide. Not entirely sure what you are trying to ask. Be careful, you don't want to hook them up wrong and burn the house down.

Oh yeah, and it's usually not a good idea to use aluminum wiring. Resistance can build up where it is bent and cause an electrical fire. This can often be the reason for a house fire after a house has just been remodeled. The old aluminum wiring was bent and eventually leads to a house fire.

Answer 3

There should be 4 wires in the jacket of wires. One bare, one white (neutral) one black and one red. The red and black will be "hot". The red & black should be attached on adjoining circuit breakers. The other end is attached to the female plug. Copper ones for the black and red wires and the shiny silver one for the white. The bare wire is hooked to the green ground screw on the plug. Be careful if you don't understand what you're doing.

Answer 4

In a 220VAC circuit:
Black = L1 ( hot )
Red = L2 ( hot )
Bare = Ground
DO NOT -- REPEAT!! --DO NOT Combine aluminum and copper wire in the same circuit!! Oxidation will cause an over heated circuit.

Answer 5

Jeez dude. Call an electrician. The money you pay them to do it could save your life and the lives of others.

Answer 6

I have no idea