DrewE
Vermont
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I agree with the others who say to get a premade extension cord.
Standard Romex is not suitable for outdoor use (it's not rated for damp locations, much less wet ones), nor for places where it's subject to physical damage, nor for use where it gets bent and unbent repeatedly. A 12 gauge extension cord and a 15-30A adapter will probably cost no more than the Romex and the plug and socket to build one yourself; in either case, you're paying mostly for the copper, and it's the same amount in either case.
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Dutch_12078
Winters south, summers north
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I haven't seen it mentioned, but don't forget the converter load in the other calculations.
Dutch
2001 GBM Landau 34' Class A
F53 chassis, Triton V10, TST TPMS
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ksg5000
Oregon
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When I was in similar situation I elected to go with 10/3 extension cord - more expensive but also comes in handy when using power tools around the house.
Kevin
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Executive
California/Arizona/South Dakota
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![[image]](https://i.imgur.com/wE7RCDyl.jpg) ...Dennis
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Lurker52
at large
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Thanks for all the replies. I may go with the extension cord. If I do I will probable go with a 10/2. My daughter did the measuring and it came up 97'. I have 50' I don't think she took in the indoor measure to the plug and maybe having to go under the RV. That is about 8-9' So all told I may have a 120' run. I need about another 70' I hate to buy a 50' cord and be 5' short (Story of my life)
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cavie
Port Charlotte Fl/ Hindsdale MA
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MountainAir05 wrote:I think you are off by a long way.
100 foot run at say 20 amp max draw would required a 10 gauge wire and you would only have 114 volt at the end. I did not use your motor home wire since wire size is unknown.
His thinking is spot on. He is NOT gonna draw 20 amps. He intends to use lights only.
2011 Keystone Sprinter 323BHS. Retired Master Electrician. Retired Building Inspector.
All Motor Homes are RV's. All RV's are not Motor Homes.
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cavie
Port Charlotte Fl/ Hindsdale MA
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Executive wrote:...Dennis
Nice chart. your point is?
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cavie
Port Charlotte Fl/ Hindsdale MA
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BB_TX wrote:Assuming you do not plan on running the A/C and for a one time thing, I don't see anything wrong with your plan. Shouldn't be much voltage drop, even if they happen to have a 20 amp circuit available. Might even be able to run the A/C if they have 20 amp, and you run very little else.
Go with a 12 ga extension cord and a dog bone adaptor. Both useful items in the future.
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Bumpyroad
Virginia
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the easiest would be to just buy a HD outdoors suitable extension cord.
bumpy
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pianotuna
Regina, SK, Canada
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Hi,
I'd go with a 10/3 myself, but I'm only 30 amp. 8/3 would be great but perhaps pricey.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.
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