Good Sam Club Open Roads Forum: Extension Cord Useage - Guage
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 > Extension Cord Useage - Guage

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Surgtech94

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Posted: 07/24/21 08:45am Link  |  Quote  |  Print  |  Notify Moderator

Sometimes at home we need to connect to an extension cord - camper cord not long enough. What size guage should we be using? Does it matter ? Thank you

CA Traveler

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Posted: 07/24/21 09:03am Link  |  Quote  |  Print  |  Notify Moderator

The typical home extension cord will have excesive voltage drop depending upon length and load.

One option is a 30A or 50A RV extension cord. Another option is a heavy duty 10ga all copper cord - not a copper covered aluminum cord.


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Posted: 07/24/21 09:06am Link  |  Quote  |  Print  |  Notify Moderator

The size depends on what you plan on running and what you are plugging into. If you are plugging into a 15 or 20 amp circuit you are limited right off the bat. I would not consider using anything less than a 10 gauge extension that is as short as possible. That would cut down on voltage loss. If you have a 30 or 50 amp socket you are plugging into get a matching extension as it may be handy in some campgrounds.


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Posted: 07/24/21 09:08am Link  |  Quote  |  Print  |  Notify Moderator

Agreed. My 50 foot extension is a 10 gauge.


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Mike134

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Posted: 07/24/21 09:14am Link  |  Quote  |  Print  |  Notify Moderator

Are you just running the frig on electric and a few lights getting ready for a trip? Then a 14 ga 50' will be just fine.
Now if you want to run the AC also you'll need a 12ga cord. I have had no issues using a 12ga 50' cord. AC only draws 12-13 amps so a 20A rated cord is fine.


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time2roll

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Posted: 07/24/21 09:17am Link  |  Quote  |  Print  |  Notify Moderator

#12 is fine up to 100' unless using the A/C.... then you need to check voltage in the RV stays above 108 when running.


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Posted: 07/24/21 09:24am Link  |  Quote  |  Print  |  Notify Moderator

Right now we are parked forward in a back in site because of the view. Just one reason why we carry a RV extension cord.

IAMICHABOD

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Posted: 07/24/21 10:04am Link  |  Quote  |  Print  |  Notify Moderator

Following the recommendations here and my electrician I opted for a 10GA solid copper wire extension cord.


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Gdetrailer

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Posted: 07/24/21 12:23pm Link  |  Quote  |  Print  |  Notify Moderator

IAMICHABOD wrote:

Following the recommendations here and my electrician I opted for a 10GA solid copper wire extension cord.


I would opt for a RV 30A 10 ga cord which has RV power connections on both ends..

[image]

This way you can take it camping with you just in case you run into a campground that doesn't have a 30A shore power connection close enough to your RV..

I have run into campsites that I have had to shift the RV between water, sewer and electric hookups just right for all three to connect.

With 10 ga wire, 25ft extensions are considerably easier to handle, 50ft might make you regret your decision.

If you own your home and need 50ft or more extension then consider having a RV shore power outlet put in near your RV parking and proper wire buried.. Makes life very easy and you don't have extension cord laying on the ground to trip over or catch with your mower deck..

On edit, fixed spall chalk error..

* This post was edited 07/24/21 04:27pm by Gdetrailer *

wa8yxm

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Posted: 07/24/21 05:07pm Link  |  Quote  |  Print  |  Notify Moderator

The size depends on two things. Current and length
For a 15 amp circuit I'd use at least 12ga Extension cord, Most big box home improvement will have 'em (Lowes, Home Depot, Mennards)

For anything bigger Get a cord at an RV store or make one custom
If making one custom "Up-Size" the wire.
8ga for 30 amp 6 for 50


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