โAug-23-2013 10:25 AM
โAug-26-2013 05:25 PM
Old-Biscuit wrote:
For the very first time I have to agree with 'westernrvparkowner'
The world is surely going to end..............:E
โAug-25-2013 07:22 PM
โAug-25-2013 07:00 PM
pianotuna wrote:Never have voltage problems. I spent the money and have rock solid electrical systems and I service the connections regularly. You haven't been to many RV parks and looked at the big rigs lately, have you? The trend now is all electric coaches, three and 4 air conditioners and all the trimmings. But that is the reasoning behind the NEC. All four air conditioners are usually not running at the same time, and they surely aren't all starting at the same time. Then all 7 rigs aren't running their vaccum cleaners and microwave ovens and electric cooktops, while blow drying their hair at the same time as everyone else. The loads will spike at one rig and valley at another. In the end, neither of the 200 amp legs will ever exceed 200 amps at any given moment, even though the pedestals give a potential of 350 amps per leg. Hence why the NEC calculates loads instead of just adding up potential.
Hi WesternRVparkowner,
That's a nice factoid on the 7 fifty amp circuits on a 200 amp breaker. Thanks for sharing it.
Of course even large RV's with twin 15000 btu air conditioners going "flat out" are only drawing about 3000 watts (~25 amps). So 25 X 7 is still only about 175 amps of that 200.
Does anyone complain of voltage drop?
โAug-25-2013 06:47 PM
โAug-25-2013 06:35 PM
Harvey51 wrote:It may make logical sense, but it is not true. The national electrical code has a demand calculation that allows for the sum of the potential services to exceed the breaker rating and still be in code. I don't have the formulas for the 30 amp services since we do not have 30 amp services, but it absolutely in code to have seven 50 amp services served from a 200 amp main. We do it and even when we are completely full with big rigs on the hottest of days, we have never had a main trip.WesternRVparkowner wrote:
You find the same thing if you go to your electrical panel in your house and add up the all the breakers. Their value will far exceed the 200 amps your service is called
It works okay in a house because you never use all the outlets at the same time. But on a hot day in an RV park everyone will want the full 30A. A loop of ten sites will need a 300A breaker or perhaps two lines of 150A.
โAug-25-2013 06:13 PM
WesternRVparkowner wrote:
You find the same thing if you go to your electrical panel in your house and add up the all the breakers. Their value will far exceed the 200 amps your service is called
โAug-24-2013 08:54 AM
ken07734 wrote:Don't know what money you think a campground could save having a 20 amp breaker serving a 30 amp plug. The electricity saved would be in the pennies. My guess is you have a hard starting AC unit and the startup amps are exceeding 30. Pretty easy to test with a clamp meter, which you can buy at Harbor Freight for less than $30.00. You will need to have a way to separate out the three wires so you can clamp around the hot wire. Best way is to have a short 30 amp extension cord and split the outside insulation so the three wires are exposed. They should be white, black and green. The black will be the hot wire. Turn the meter to amperage and set the side button to "hold" plug in your rig and wait till the breaker trips. The reading on the meter will be the maximum amperage drawn by your rig during that time. That will give you your answer.
hmmm, I can say that I have to ask for a 50 amp site because the moment I turn on my AC the circuit breaker on the pedestal trips on every CG I have stayed at so far since buying my 2013 TT in April of 2013 and I have had it in for warranty work and had that checked and will again in September as with ONLY the AC on and NO other appliances it trips "Unless" I have it plugged into the 50 amp via the adaptor. I have been wanting as I do have a degree in Electronics although many moons ago to measure the actual amperage being used or drawn just before the 30 amp trips and what is powered up at the time and then run that same test connected to the 50 amp to see what the actual draw is for all items powered. It would very devious for CG owner to have only 20 amp service supplied by a 30 amp receptacle although it can be done and would save the CG owner money I am not sure if the legallities and or the customer complaints would be worth the trouble.
โAug-24-2013 08:05 AM
โAug-24-2013 07:58 AM
โAug-23-2013 08:21 PM
โAug-23-2013 04:33 PM
โAug-23-2013 04:02 PM
j-d wrote:Yes, probably really old wiring with worn and loose connections, those are the kind of things that cause a lot of voltage drop, and my guess is the service at the main isn't the best of the best. However, unless that 100 amp fuse is blowing all the time, or has been replaced by a copper penny (like we did in the good ole days), the circuit isn't being overloaded with those ten 30 amp connections. If it was the main would trip, or in this case, the main fuse would blow.
The way the park maintenance man described it to me, the "loop" of 10 sites was served by one loop of cable, wired to 30A pedestal outlets, and served by one 100-amp fuse. I asked, Fuse, not Breaker? Yep, Fuse. The kind that looks like a big firecracker with a thick copper blade sticking out of each end? Yep. Park was probably built by the CCC in the 1930's. Doubt it had electricity at all at first, but sounded like the power could have been 1960's vintage...
โAug-23-2013 01:42 PM
โAug-23-2013 01:20 PM
debbiep63 wrote:
Just turning on the tv drops the volts from 118 intoI the red at 109