How do you connect red and black wires to a plug?

Connect the black wire to a brass screw or terminal on the plug and the red wire to the other brass screw. Attach the white wire to the silver screw or terminal and the ground wire to the green screw.

What size wire do you need for a 30 amp RV plug?

10 awg will handle 30 amps but, that is the maximum that the NEC allows. Since it is going through your attic there could be adjustments for temperature corrections to the rating of the wire. To be on the safe side you should run 8 awg wire.

Where does the red wire go in a plug?

Red wires are usually used as secondary hot wires. Red wires are also hot and should be clearly marked to avoid the dangers of electrocution. Red wires are commonly used when installing ceiling fans, where the light switch maybe.

Can I use a 3 wire cord on a 4-wire dryer?

You need to find out just where those three wires in the outlet are going in the electrical panel and get a 3 wire outlet, properly wired, into the wall, followed by a 3 wire cord to the dryer. It is neither legal nor safe to use only 3 wires to hook up a 4 wire wall outlet.

What wire do I use for a 30 amp breaker?

10-gauge wire RULES OF THUMB. Many techs will repeat these rules of thumb and rely on them in all circumstances: “Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”

What happens if you wire a plug wrong?

But heres the catch: If you connect the circuit wires to the wrong terminals on an outlet, the outlet will still work but the polarity will be backward. When this happens, a lamp, for example, will have its bulb socket sleeve energized rather than the little tab inside the socket.