dougrainer wrote:
chuggs wrote:
It's simple folks.
50 amps is a limitation...the camper may draw up to 50 amps...at which point the circuit breaker will trip.
The thing that runs his fridge and air conditioning is Voltage (pressure)... So with the a/cand fridge turned on...measure the voltage in one of the campers outlets. If it's normal...then that's not the problem...there would be significant loss over the line if the wiring weren't capable... If the circuit breaker is tripping...you can use a clamp meter to measure and record the peak amps...or simply swap breakers to make sure you don't have a weak one. Anyway, if his coach is tripping the breaker I would check for normal voltage... When voltage is low...the amperage draw goes up so the load can get the required watts to function. If that's normal...then the load in his camper is too high... IE maybe his compressors are going bad and pulling too high a load.
Sorry, WRONG. 50 amp RV service is a TOTAL of 100 amps.
As to the "misinformation" the fault of the RV industry. WRONG again. The RV industry uses the NEC electrical code as its basis. Blaming incompetent Electricians on the RV industry is wrong. Doug
Your point is noted...but it's irrelevant. The camper is a 110v vehicle. When you connect it to 220v...you simply have two 110v buses. EACH bus individually should be wired to safely carry a 50 amp load... Saying that it's 100 amps total is irrelevant. That would be like going into your house and seeing a 200 amp main breaker...and then insisting that it's really 400 amps... I don't see why you would want to do that.
You cannot tell me a way to place a clamp meter on an RV service pole and measure 100 amps. You can measure up to 50 off of L1, and up to 50 off of L2... So you could say you have 110v x 50amp + 110v x 50 amp. Or you could say you have 220v x 50 amps...but it's all the same. If you can measure 100 amps...something is wrong with your wiring. Amps is current. When you want to add thing up to see energy draw...you're better off talking in KVA, watts, etc....
