relaxin wrote:
LostinAZ wrote:
Jim and Barb wrote:
RGordon is absoulty right! I have been an Industrial Maintenance Supervisor for 10 + years. All it is 220 single phase its only two 110 legs with a ground wire where it ties on a buss bar in the box that is also a tie point for your nuteral on a 110 v circut. The AMP rating is how much draw it it can handel while working 30 AMP is normal for a house.
What isn't being mentioned when we discuss two 110 V legs is they have to be out of phase to create 220V service. My understanding is that the 50 Amp service we hook into at RV Resort/Park pedestals, the two 110V 50 amp legs are not out of phase and therefore 220V is never present inside the RV.
WRONG!!!!
it is both hot legs, it has to be to only have one neutral and in electrical circuitry is referred to as a shared neutral, that in itself only carries the imbalanced load from the 2 hots
example hot #1 is carrying 10 amps, and hot#2 is carrying 15 amps, the neutral only carry's the difference of 5 amps
if you put both hots on one side of the service and lets say you draw on hot#1 35 amps, and hot # 2 you draw another 30 amps, with both hots on the same leg of the service you will have all the current combined on the neutral so 65 amps,,,, dam why is that wire getting so warm
The reason all the RV equipment is 120 volt is so the RV cam function when plugged into with an adapter a 30 amp outlet, the manufacturers realized early on when 50 amp was introduced that it would be a long time before a majority of parks have 50 amp outlets, so most of the time your 220v equipment would never be able to use if you only came across parks with 30 amp
relaxin is right. You should know that lostinaz! A lot of your Montana buds hooked up 220 volt dryers in their rigs by rearranging the two 20A 110 oulets provided.
