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Old 10-13-2012, 07:35 AM   #1
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30 Amp Breaker in Garage - for TT

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I'm wanting to run the 110v "things" that my TT has by using an outlet in my garage and an extension cord. I've searched for info and come up with this : The 30-amp 120-volt 2 pole 3 wir

what I'm getting from the above reference is that the 20 amp breaker in the main distribution box can be replaced with a 30 amp breaker &

then the "normal" 110v outlet would then be replaced with an "RV 30 amp" one &

then for the 100' run I would need a #8 gauge extension cord

is this thinking correct ? (and if so, would anyone here like to come over and do those mods for me ?). thank you.....Bill

p.s.: almost forgot - there are 4 normal outlets on the 20 amp breaker that I'm thinking about changing to a 30 amp - am I correct in thinking that nothing about them would change, other than "capability" ?
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Old 10-13-2012, 07:54 AM   #2
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Other than you won't be able to use them and they would need to be bypassed.
They are only rated for 15 amps (most likely as the 20 amp duplexes look like the photo)

ALL the wire in the circuit would need to be replaced with 30 amp rated romex house wire as well.

WAY better to leave the 20 amp breaker in the panel and wire the 30 amp rated (but now 20 amp limited) RV outlet with the existing wire.
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Old 10-13-2012, 08:05 AM   #3
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..WAY better to leave the 20 amp breaker in the panel and wire the 30 amp rated (but now 20 amp limited) RV outlet with the existing wire.
(I think I understand all I thought I heard you say.....)

so, you're saying NOT to have the 20 amp breaker in the panel replaced - but it would be "OK" to replace the outlet on the wall with a 30 amp one, even tho it would be limited to 20 amps ?

if that's correct, wouldn't a simple adapter be the simple solution ? thanks.....Bill
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Old 10-13-2012, 09:02 AM   #4
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If you have room in your panel then please put in a new 30 amp breaker and run the correct size (or slightly larger) wire from the new breaker to the correct sized outlet. It is much simpler then trying to monkey with a circuit you already have. You will also have a significantly smaller chance of creating a fire hazard with the new circuit then you will trying to retrofit the old one.

There is a very simple rule when working with electricity.
Larger diameter wire = less resistance
Less resistance = less heat
Less heat = less chance of fire

Or to put it another way don't overload your wire or you will pay for it later.
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Old 10-13-2012, 09:55 AM   #5
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thanks all - no matter what I have done (IF I have anything done) it'll be done by a "real" electrician.....Bill
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Old 10-13-2012, 09:58 AM   #6
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Quote:
Originally Posted by Whisky
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thanks all - no matter what I have done (IF I have anything done) it'll be done by a "real" electrician.....Bill
As we've found "real" electricians have messed up thousands of dollars of electronics not knowing an rv is 110v.


Turbs
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Old 10-13-2012, 10:39 AM   #7
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question : roughly, what amp draw would a Dometic fridge have (26' Wildwood BH).....Bill
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Old 10-13-2012, 11:00 AM   #8
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Quote:
Originally Posted by Whisky
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question : roughly, what amp draw would a Dometic fridge have (26' Wildwood BH).....Bill
normal appliance amp draws
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Old 10-13-2012, 11:01 AM   #9
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Quote:
Originally Posted by Whisky View Post
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question : roughly, what amp draw would a Dometic fridge have (26' Wildwood BH).....Bill


Edit: Turbs got it
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Old 10-13-2012, 11:40 AM   #10
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20 amps is plenty for most users. Just watch what you plug in to your other outlets.
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