Originally Posted by HowieE
No this will not happen. A 240 volt supply in a RV has 2 hot legs. If a 240 volt appliance, a heavy motor, is used there is no current in the neutral. All the 120 volt appliances are supplied voltage via one leg and the neutral. Under ideal conditions the loads in the RV would be balanced and again there is no current in the neutral. If the neutral fails everything would just shut down.
There is current in the neutral when the loads are unbalanced and is limited to the current supplied by either leg if there is nothing on the other leg.
OK - so if the neutral fails, does the 240 volt unit continue operating? Further, is there any increased risk of shock with a failed neutral (---at the unit) if the ground remains intact?
I have one of those plug-in circuit testers with the two amber and one red light and I've often wondered what the different light combinations meant. Although I've yet to have a faulty connection, I'll bet that a lot of others often wonder the same thing.
Thanks again for your patience!