Electrical theory question...
Let's take as an example 50AMP RV service. A voltmeter between the two hots shows 240 volts, between one leg (or the other) and neutral shows 120 volts. My question concerns what happens when each...
Forum Discussion
"If" the two hot lines are perfectly balanced, (that is to say both have identical current flowing) the actual neutral current will be zero, because the first hot current will flow to the second hot and vice versa. This is how you are able to have a neutral conductor that is rated for 50 amps. and yet have two hot conductors, EACH rated for 50 amps. If both hots are running 50 amps current EACH, the total current would be 100 amps. but none of it will flow in the neutral conductor because it will flow back and forth between the two hots. The absolute worst case would be if only one hot wire is loaded (with 50 amps) and the other had no load at all. This would cause 50 amps return current to flow in the neutral wire.
Actually this is just a hypothetical situation but demonstrates the theory.
Actually this is just a hypothetical situation but demonstrates the theory.
