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Old 08-17-2012, 03:17 PM   #29
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I just got a piece of literture stuffed inside my new jack antenna........it is a new product put out by JTB manufacturing that might answer your needs.

web site is www.jtbmfg.com
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Old 08-17-2012, 03:26 PM   #30
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I bought this in case there is only 50 amp service at a location.

Amazon.com: Prime RVAD5030901 RV Adapter, 50 Amp Plug with Handle and 30 Amp Connector with Indicator Light and Handle: Home Improvement

You can buy one that is 30 amp to 50 amp.
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Old 08-17-2012, 03:40 PM   #31
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Probably the reason Splendide does not wire their dryer for 220 is that some campgrounds cheat and run one leg to both hot legs of the 50 amp plug. If you plugged into this type service, your dryer would not work.

When you use an adapter from 30 to 50 amp, you are using only one leg. If you tried to hook both legs of a 50 amp plug together, the FIRE would fly! You would have wired a direct short on a 220 line! Something you would NOT want to do!

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Old 08-18-2012, 09:00 AM   #32
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@ JimM68 -
"All 3 of the 50 to 30 adapters I have owned connect to only one leg of the fifty amp plug. In fact, that is how the EMS in my rig knows it is connected to 30 amp power... one hot leg, one dead leg."

I think in the context of your post you mean a 30A to 50A adapter and, as far as my 'dog bone' adapter is concerned, both hot sockets on the '50A' outlet are connected to the single hot pin on the 30A plug. A simple electrical continuity test proves this.

So, both legs into the coach are hot and the EMS display shows 120v on both L1 and L2. The EMS knows it is on a 30A supply because both legs are on the same phase and it sheds load accordingly.

Now, that is the situation on our 2013 Bounder. Maybe it was different in earlier years.
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Old 08-19-2012, 03:08 PM   #33
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We have a Bosch 220 vac dryer in our MH and have never encountered 50 amp service at a CG that didn't power our dryer. It's true if we're at a CG with 30 amp service and we have to do a load, we have to run the generator. I also know a lot of MH's with 220 vac stove tops. Ours is an electric 120 vac which works great.
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Old 08-19-2012, 04:00 PM   #34
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For most 50A coaches, (those with no 240v appliances) I find it easiest to think of 50A supply as 120v at 100A. As posted earlier, these 12,000 watts available. In other words, 3.3 times the power as 30A (30A times 120v = 3,600 watts). This helps explain why such coaches can run 2-3 ACs plus other appliances at the same time.
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Old 08-19-2012, 04:26 PM   #35
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Quote:
Originally Posted by burfurd View Post
Probably the reason Splendide does not wire their dryer for 220 is that some campgrounds cheat and run one leg to both hot legs of the 50 amp plug. If you plugged into this type service, your dryer would not work.

......

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I would doubt many campgrounds would do that. If they did then the neutral would burn.
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Old 08-19-2012, 05:52 PM   #36
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While the two 110 v legs COULD be wired to become 220, they are not wired that way anywhere from the power post to the RV, so it is NOT 220 v, it only has the capacity to be wired at 220 if you wanted it.
If the pedestal is wire to a three phase circuit, then all you would get is 208v. Although still rare, some newer CGs are 120/208v. And yes, the latest NEC regs permit it.
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Old 08-19-2012, 06:05 PM   #37
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Probably the reason Splendide does not wire their dryer for 220 is that some campgrounds cheat and run one leg to both hot legs of the 50 amp plug. If you plugged into this type service, your dryer would not work...
That is easy to check for. Just check the votage from leg to leg and each leg to neutral. If you do not have 120v (or close to that) from each leg to neutral and 240V leg to leg, DO NOT PLUG IN! If you have zero volts across the legs when each leg to neutral is 120v, both legs are connected to the same side of the split phase and the neutral will be carrying up to twice its rated capacity which could cause the built in flame and smoke to be released from your power cord and RV!

The reason Splendide doesn't use 220v for their dryers is to m ake them compatable with most RVs. Even a 30A rig (which only gets 120v) can use one if the load is carefully managed.
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Old 08-19-2012, 06:22 PM   #38
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Originally Posted by LadyFitz... View Post
If the pedestal is wire to a three phase circuit, then all you would get is 208v. Although still rare, some newer CGs are 120/208v. And yes, the latest NEC regs permit it.
Yes, was reading that last year in the NEC, 3-phase to the park is more effecient and allows more power.
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