:E :E :E :E
DO NOT PLUG IT IN ! ! ! ! ! ! ! :E :E :E :E
The “normal” for 120 volts has a white neutral and a black 120 volt hot line. The 3rd wire is ground and might be unshielded copper or green.
The “normal” for 240 volts has a white neutral, a black 120 volt hot line, and a red 120 volt hot line that is 180 degrees out of phase with the black wire. The 4th wire is ground and might be unshielded copper or green.
The hot wires are alternating current. They change from plus 120 volts to minus 120 volts 60 times a second. 180 degrees out of phase means that when one wire is plus 120 volts, the other is minus 120 volts. The difference between plus and minus 120 volts is 240 volts!
Your original question was:
Hawk9 wrote:
A friend of mine has a an outlet and also the plug for a 50 AMP, the Red and White wires are mis-crossed. What will that do to his RV if he hooks it up? ...Thank you!
The 50 amp RV circuit crosses half of the RV outlets from red(120) to white(neutral) to give you 120 volts and the other half from black(120) to white(neutral) which also gives you 120 volts. If the red and white wires are crossed, the result would be:
half of the RV outlets from red(neutral) to white(120) to give you 120 volts and the other half from black(120) to white(120) which gives you 240 volts –
and the 240 volts will fry anything plugged into those outlets![\b]