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Terry and Jo wrote:There is another option, although I have never used it, so I don't know how well it works.There is an adapter (see link below) that allows you to plug one end into 30 amp and a second plug into a regular electrical outlet and the combination of the two gives you roughly 45 amps. The third end of the cord is for your 50 amp RV cable.http://www.amazon.com/Camco-55025-Power-Maximizer-Adapter/dp/B0024E70L2Terry
There is another option, although I have never used it, so I don't know how well it works.There is an adapter (see link below) that allows you to plug one end into 30 amp and a second plug into a regular electrical outlet and the combination of the two gives you roughly 45 amps. The third end of the cord is for your 50 amp RV cable.http://www.amazon.com/Camco-55025-Power-Maximizer-Adapter/dp/B0024E70L2Terry
Very few places let you use these, but there are enough places I have one. True 50AMP is 50AMP 240 volt so it is 100AMP 120volt, so the adapter only gives you 45% of a real 50AMP plug instead of the 30% with 30AMP. Since a 50AMP RV has two leads that each expect 50AMP you still have to watch what is running. In most RVs the rear A/C shares with the inside plugs and the front A/C shares with the electric hot water, washer/dryer if it exists, and some outside plugs. In my 50AMP RV I can't only run one of the electric hot water, washer/dryer and front A/C on one of these adapters since I only have 15 to 20AMPs between them and each uses more than 10AMPs.
There have been some fancy, high end RVs with 240volt electric appliances, but the owners quickly were frustrated since in many places they didn't have 240 volts. It is not uncommon for 50AMP campground plugs to have both leads in phase and therefore no 240 volts available.
Bill Joyce, 2004 Dutch Star DP towing a 2012 Chevy EquinoxJournal at http://www.sacnoth.comFull-timing since July 2003
eagleshea,Here's another thing to watch out for.You said that there was a 30 Amp plug at your friends house. Is it wired for an RV? If not, do not plug into it!!30 amp plug for RVs are wired for 120 volts, but ones wired for a home dryer for instance, are 240 volts. It will burn out any RV appliances in your RV.Jim
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EDIT*** on second thought the 30 amp circuit probably uses a different gauge than the 15 amp circuit so they would not be one in the same???
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Howard has a good write-up on RV power systems. But let me share this should some not understand the practical difference between 30 and 50 amps as Bill Joyce mentioned.
When you have a 50 amp connection you really have a TOTAL of 100 amps of electrical service. 70 amps more than a 30 amp plug.
A 50 amp plug is really two 50 amp circuits. A 30 amp plug is just one circuit and that circuit is 30 amps.
Look at a 50 amp plug, you will see 4 connections. Look at a 30 amp plug, you will see 3 connections. That extra “connection” on the 50 amp plug is another 50 amp circuit. Hence two 50’s = 100.
If you don’t follow this crude explanation, may I suggest you read Howard’s section on RV power in the RV-Dreams site. It will tell you why “50 is actually 70 more than 30.”Safe travels
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