Quote:
Originally Posted by Laco
The breaker on the parks pedestal protects the parks electrical, the main breaker in your RV protects your RV. It really does not matter what amp circuit you plug into, your RV's electrical will protect it.
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All circuit breakers work only down stream. If the high line coming into your pedestal shorts, it will not trip the circuit breakers in your coach's pedestal or in your coach for that matter. Any circuit breaker only monitors the current (not the voltage) flowing through it. When the current exceeds the rated amount the CB will trip. Well it not that simple. 30 amp circuit breakers with trip if they pass 28 amps for 10 minutes. The more they are tripped the less current it takes to trip. This is because they use a magnetic latch. Over time tripping then manually or automatically reduces the magnetism of the latch. By the way all the new house construction requires CAFCI and all new RV construction should have them.