A/C tripping the breaker
Tough question here... Our 3 year old Coleman Mach air conditioner started tripping the breaker this week. It started Saturday. Breaker tripped. Reset, started and tripped again. This went on a...
Forum Discussion
Rthomas61 wrote:
What would cause the low voltage? That's the first thing I'm going to check. Check that at the breaker?
The problem lies with the NEC minimum code requirements for RV Parks and which edition of the NEC the CG/RV park was built to. The NEC requirements have improved over the decades but it is simply way behind all the high demand RVs nowadays (except for owners who built above the min. code requirements). You can't fault a CG owner for going cheap on the construction.
A single 30 amp pedestal has a 3600 watt demand but when there are multiple pedestals, the demand allowance drops significantly. Say a CG had a section of all 36 amp pedestals, the total demand is calculated at just 41 percent of 3600 watts (1476 watts) as per table 551.73. So if everyone is running an AC unit in warm weather plus other loads, the CG's system simply can't handle the total load and voltage goes down as a result. Not much you can do except to get an autoformer.
If you travel around to numerous CGs, it's almost guaranteed that if you go to an older one like in the 70s, there will be low voltage.
