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Old 04-13-2011, 12:53 AM   #1
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Extension cord questions

So lucky me, I've got my rig stored in my property behind my fence. I was going to hook up an 30-amp power supply from my house to my MH, but decided against it.

I'll just have to feed it regular 15-20 amp house current. Two questions:

(1) Would a 10-gauge 50-foot extension cord be safe enough? (i.e., it won't get too hot and melt itself, would it??), and

(2) Just how many appliances can I power up? My rig is wired for 30-amp service (I think) and would like to run that extension cord from the house to it.

Again, thanks in advance !
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Old 04-13-2011, 02:34 AM   #2
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1) yes, it'll be good..

2) whatever you can run on 15-20 amps.. A microwave, an A/C, etc.. not both at the same time, however
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Old 04-13-2011, 05:22 AM   #3
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The 50' of #10 wire will be over-kill for the 20 amp load. You can get buy with an extension cord with #12 wire.
Here's the link for a table that will help you.
Voltage Drop Calculator
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Old 04-13-2011, 07:00 AM   #4
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I have a 20 foot 30 amp rv extension cord that I adapt to a 20 amp plug, and it works fine. With my old pace arrow, I sometime had to add a 16ft HD 20 amp extension. Never a problem. Go easy on what all you use.
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Old 04-13-2011, 07:50 AM   #5
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You are safe with a #10 fifty foot ext cord. The large black Cord sold by camping world is #10. It will run one A/C or two A/Cs if a fleetwood product with intellitec system.
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Old 04-13-2011, 07:58 AM   #6
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For 15-20 amps I'd use one of the 12ga extension cords from Sears, then an adapter. Or... if your rig is like mine you might even just power the converter, but that takes a special adapter that I've not found on line (made my own.

The sears cords, (Which are also at K-mart) the outlet end has a button.
Push the button, plug your 15 to whatever adapter in, release the button and it "Grips" the adapter, much better hold than a standard cord.

Now.. A short story.. I once had a heavy duty *8ga* cord that when I went to coil it up I had to wear gloves because it was so hot.. Now if it was hauling five amps I'd be surprised (Less than five, for sure less than 10, that wire should take 50 w/o overheating)

That is... Till I got to the part of the cord that was in the shade.. Then it was cool to the touch....Sometimes it's not current that makes it hot.. It is sunlight.
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Old 04-17-2011, 10:21 AM   #7
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Were do you plug the cord in on the RV?
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Old 04-17-2011, 11:48 AM   #8
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Quote:
Originally Posted by micki49 View Post
Were do you plug the cord in on the RV?
I have a 30-amp power cord that's hardwired. It's the main power supply cord that I hook up to the campground power pedestal (I think that's what you call it....)

Anyway, I bought a 30-amp female/15-amp male adapter so that I can hook it up to one of the sockets in my backyard. It'll supply some power to my coach. I've had my radio on, my TV on (though not at the same time), and from what I gather, I can power up my fridge 24 hours before I take a trip to ensure it'll be cold enough for the food.

It's another way of keeping my coach batteries topped off as well. (My other one is a rinky-dink solar panel on top of the A/C).

I think what I wrote is right. I'm just "flailing" along since this is my very first RV.
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Old 04-17-2011, 12:35 PM   #9
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Quote:
Originally Posted by randco View Post
The 50' of #10 wire will be over-kill for the 20 amp load. You can get buy with an extension cord with #12 wire.
Here's the link for a table that will help you.
Voltage Drop Calculator
A "heavy duty" #12 50' extension cord from K-Mart, Sears, Home Depot, or Lowe's along with a 30amp to 15-20amp adapter will serve your needs just fine to run TV, battery charger, etc. Just can't go crazy running Micro wave, coffee pot, fridge, TV, and AC all at once.
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Old 04-17-2011, 04:25 PM   #10
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I have both a #12 wire 50 and 100' long extension cords I plug my old unit into either to get ready before pulling out. I have had both run the single AC unit and the fridge while plugged into a 20a circuit.

Chris
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