Can 220 be changed to 110? - Fiberglass RV


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Old 02-19-2006, 07:17 AM   #1
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I have a need for electrical help. Recently a friend spent a few days parked in our back yard with his 17' Casita and he had to use his generator for his electrical needs. He was parked next to the barn and could only plug into a 15 amp 110 source that already had a few other things drawing power from it. In the barn is a dedicated 220 recepticle that I had wired to run the stick welder. Could he have pluged into that? Is there a cord and plug setup that will plug into a 220 dryer/welder blade type recepticle and change it to two 110 3 prong extension cord type ?

I think I've seen such a thing a few years ago but can't quite remember for sure. What I picture is about 2' long, it had a blade type 220 plug at one end and then a contractors type extension cord recepticle at the other made of a frosted plastic and sort of pie slice shaped.

I think at least 4 extension cords could be pluged in. It took the hot leads from the 220 and sort of split them so 110 was the resulting available power.

Anybody ever see this sort of thing or am I halucinating again? Is it even possible?

Paul
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Old 02-19-2006, 08:28 AM   #2
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220AC can be split into two 110AC circuits. We made our's when we had the construction company. But I think there are factory made one's made now. Check at Lowes or Home Depot building areas. Or have your outlet converted to one 220 for welding and 2 110 outlets. Mike B
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Old 02-19-2006, 08:58 AM   #3
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If there are four pins or slots in the 220 plug , then it can be done. There will be 2 hot leads, a neutral(return), and a ground.
there are many adapters available and the parts to make one are also readily available.
One thing you must consider is that the receptacle in question may be fused higher than 15 amps. if you are plugging in a 15 amp cord, it is not rated for the current draw available if there is a short in the wiring after the plug.
make sure any adapter you gat is fused correctly for the job you need it to do.

Joe
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Old 02-19-2006, 09:59 AM   #4
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PPL in Houston TX as the adapter. rvdealership.com 50amp (220) to 30amp (110). Price is $28.25 Mike B
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Old 02-19-2006, 10:02 AM   #5
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Yes it can but you must be most careful.

You have 2 hot leads going to the 220 outlet plus a ground and in some case a return lead.

Many are just 3 prong and do not have the return lead.

I have a washer and dryer that are stacked and the dryer is 220 and the washer 120 and they use the same plug.

To split off to 1ea 120 outlet you need 1 hot lead (Black) 1 Return lead (White) one Ground lead (Green).

As stated in the previous answer, you should install a circuit breaker box and fuse it to 15 or 20 amps depending on your requirements. You can get an air conditioning circuit breaker box for a modest price and use it.

As a precaution, outside receptacles should be ground fault protected (Dirt Floor, Camper resting on dirt, Outside, I would install a ground fault receptacle where you plug in the 120V cable.

If you go with 20 Amp, make sure all items are rated for 20 amp. I would also use a minimum of 12 Gauge wire.

If you are unsure, check with an electrician and of course your local codes. Be safe.
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Old 02-22-2006, 04:14 PM   #6
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If there are four pins or slots in the 220 plug , then it can be done. There will be 2 hot leads, a neutral(return), and a ground.
Here's a wiring diagram of how to do it if you want to make the most out of a 30A 220V plugin (IE: Dryer outlet).



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The curcuit breaker box can be replaced with a fuse panel. For temporary use it'll be a lot cheaper.
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Old 02-24-2006, 02:23 AM   #7
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220 can be made into 110 if you fold it in half.


(If anyone needs me, I will be in my room... just over there.)
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Old 02-24-2006, 07:42 AM   #8
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Does that mean if you pull hard enough on your thirteen footer, it'll be 16 feet?
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