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Old 05-29-2012, 07:35 AM   #1
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Power cord please

Ill be camping in my old 1977 prowler 21 ft camper soon and I have a couple of dumb questions.....The power cord has a 220 plug that looks like a old dryer cord end with a 110 adapter stuck on the end of it......My trailer runs on 110 so can you tell my what Im going to need at a campsite ?....Also is I was thinking of permanently installing a trickle charger inside my camper so anytime its plugged in its on.Is that a good idea? How long of a water hose and power cord do we need at most campsites....Thanks for help....Mat
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Old 05-29-2012, 08:17 AM   #2
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Ill be camping in my old 1977 prowler 21 ft camper soon and I have a couple of dumb questions.....The power cord has a 220 plug that looks like a old dryer cord end with a 110 adapter stuck on the end of it......My trailer runs on 110 so can you tell my what Im going to need at a campsite ?....Also is I was thinking of permanently installing a trickle charger inside my camper so anytime its plugged in its on.Is that a good idea? How long of a water hose and power cord do we need at most campsites....Thanks for help....Mat
If the "old 220" plug end is three prong it is most likely 30 Amp. If it is four prong it is likely 50 Amp.
Water hose length? I carry two drinking water quality hoses. One is 15' long and the other is a 25' long. I can put them together if I need more than 25'. Also, 1/2" ID is adequate, easier to coil and supplies enough water to the camper. I also put a splitter on the faucet so I can have outside water access. This primarily in case of fire.
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Old 05-29-2012, 08:19 AM   #3
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First the power cord that looks like a dryer plug is not wired the same way as a dryer
and should never be plugged into a dryer socket. At most CG you will find a 30 amp
service that it will plug into. The adapter to change it so you can plug into the normal
outlet is for cases when you need to plug into a drop cord or outlet. In those cases
you are limited to 20 anps. As to trickle charger nothing wrong in doing that but a
good current charger would be better. Water hose of 25 feet should do the trick but
having another 25 foot one handy can sometimes save you for that strange time when you need more. Power cord connections are normally less that 25 feet away
but having a extra 25 feet handy might be nice.
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Old 05-29-2012, 08:36 AM   #4
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So may I ask do campers run on 110 and the cord end will only determine the amount of amps 30 or 50 ?...Thanks
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Old 05-29-2012, 08:49 AM   #5
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So may I ask do campers run on 110 and the cord end will only determine the amount of amps 30 or 50 ?...Thanks
A 30A (3 prong) plug is a 110V connection. It looks like a dryer plug, but is NOT wired that way. You will have major electrical problems if you plug it into a 220V dryer outlet. The outlets you find at a campground will be wired correctly for 110V.

A 50A (4 prong) plug is a 220V connection. Large campers and RVs will use this type of connection.
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Old 05-29-2012, 08:55 AM   #6
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To be more exact, a 50A plug is two 110 connections.
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Old 05-29-2012, 09:03 AM   #7
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To be more exact, a 50A plug is two 110 connections.
And, to expand on that, 110 x 2 = 220.

But, Dunner is right. A 50A receptical supplies two 110V, 50A legs to your RV so it could be thought of as a 100A, 110V service.
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Old 05-29-2012, 09:17 AM   #8
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So, why do they call it 50A? I have two 50A breakers.
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Old 05-29-2012, 09:24 AM   #9
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Fighting in the sand box again.
The service is called 100 amps because the two 110 volt feeds can provide 100 amps
together. However each leg can only provide 50 amps by it's self.
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Old 05-29-2012, 09:26 AM   #10
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So, why do they call it 50A? I have two 50A breakers.
Because it is 50A 220V service. Your two 50A breakers are tied together to act as one. If one side trips, it takes the other side with it. It is a 220V 50A breaker.
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Old 05-29-2012, 09:34 AM   #11
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That makes sense either way it's explained.
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Old 05-29-2012, 09:45 AM   #12
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Thanks All.......I understand.....Mne is 3 prong 30 amp....I can see how someone would be confused if they are new to camping.....I do wiring for myself ,wired up my cabinet shop 220 no big deal but it is a bit different these campers....Thank god I didn't plug it in to 220 when I had it in the shop this winter when I was working on it.....Thanks again...Mat
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Old 05-29-2012, 09:53 AM   #13
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Why they ever allowed the use of a common plug that can be plugged into the wrong
outlet in RV shore power connections is beyond me.
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Old 05-29-2012, 10:01 AM   #14
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Why they ever allowed the use of a common plug that can be plugged into the wrong
outlet in RV shore power connections is beyond me.
Well Im glad I asked.....Thanks..
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