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Old 09-08-2015, 11:22 AM   #1
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Question T1350 >> 110? 30 Amp??

-- totally confused newbie here.

I have a 1985 T-1350 and I think it has been rewired from a 30 AMP service to a 110. I can plug a 110 extension cord in to the camper but it appears that the cord has been 're-done' on the inside. When I turn on the AC it kicks the breaker off at the house. I'm about to take my first outing and need to know what to expect cord wise at a campground. Is 110 standard or should it be a 30 amp service?
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Old 09-08-2015, 12:49 PM   #2
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First, Let's get some terms straight.

Let me try to explain in terms of water. Voltage is pressure. So 110 volts would be like your garden hose @ 10 pounds per square inch. 220 v is like a fire hose @ 100 pound per square inch. Amperage is volume, so at the same voltage (pressure) , where your garden hose flows 10 gallons a minute, a fire hose flows 100 gallons per minute. Clear as mud??

So our trailer voltage (pressure) is 110v, and it is wired for 30 amps (volume)

Almost all campgrounds will have 30 amp services.

Your standard house outlet is 110 vac most likely 15 amps, maybe 20 amps.

Your A/C momentarily draws over 20 amps so no your house outlet probably won't start it.

IF your camper cord can be plugged directly into a house outlet without an adaptor, then yes, it has been modified. You should have a 10 guage (wire size) cord with an 30 amp RV plug on it. Anything less than 30 amp, is going to give you problems with your A/C.
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Old 09-08-2015, 12:55 PM   #3
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OK, yes, clear as mud

So will my 'garden hose' 110 plug into the campground 'hose' 30 amp service or is there a plug adapter that I will need?

Thanks for the quick reply
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Old 09-08-2015, 01:07 PM   #4
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You should need an adaptor to plug your trailer into a standard house outlet, but if I'm hearing you right, you were able to plug the camper cord directly into the house outlet.

Correct?

If so, your cord is probably not adequately sized and should be replaced with a 10 gauge wire w/30 amp plug.

While it is ok to adapt the 30 amp cord into a 15/20 amp outlet. You should not plug a 15/20 amp plug/cord into a 30 amp circuit, it will overheat and possibly burn.
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Old 09-08-2015, 01:41 PM   #5
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Thanks - you are correct - someone prior to me 'rigged' it to plug into a 110 house but I'm sure it's not 10 gauge wire - I'll rewire before the weekend trip. But back to the original question - the 30 amp service at the campground - special plug??? different from standard household plug right?
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Old 09-08-2015, 01:43 PM   #6
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https://search.yahoo.com/yhs/search?...&hsimp=yhs-002

Here is a link showing some 15 amp to 30 amp 110 volt adapters.

The second image over toward the right shows a very good example of a screw on 30 amp female x 15 amp male adapter as does the lower right hand image in grey.
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Old 09-08-2015, 06:42 PM   #7
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Yes an RV 30 amp plug is different than any other it will not plug into any thing else. If your camper cord is about 5/8 " it still maybe a #10 wire it is fairly common for campers to leave their 30 amp plugged in when they leave and it's a bit hard on the end. With an extension cord and a house breaker rated 15 amp it unlikely that will be enough to run your AC. If the cord sill has a big end on it it's also possible they just added a 30 to 15 amp adapter to the plug.
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Old 09-08-2015, 07:19 PM   #8
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The shore power cord should be 10 ga wire with a plug that looks like this on the end.



The campground 30 amp outlet will look like this:

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Old 09-08-2015, 08:37 PM   #9
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Quote:
Originally Posted by Offgrid View Post
Thanks - you are correct - someone prior to me 'rigged' it to plug into a 110 house but I'm sure it's not 10 gauge wire - I'll rewire before the weekend trip. But back to the original question - the 30 amp service at the campground - special plug??? different from standard household plug right?
Can you post a picture of the "rigged" plug and the wire. It would make it easier for us to figure out. To me, Gene's picture shows best on what plug(30 Amp/110Volt) you are supposed to have coming out of the camper. I have that set up with a simple black 30Amp to 15Amp adapter that is plugged into my 20Amp garage receptacle and it easily runs my year 2000 Dometic 13,500 BTU A/C.
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Old 09-09-2015, 06:51 AM   #10
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If the cord is still in good shape the cord cap can be replaced it is a NEMA TT30P. It is imperative that the new plug is wired correctly for your safety. With the plug contacts facing away from you (the terminals facing you) the green wire (round terminal facing up) goes there, the white will go on the right the black on the left. A good thing to have in any camper is a polarity checker they cost about 5 bucks it has 3 lights and can be plugged into any camper outlet I leave mine plugged in and after plugging in the camper check the light to make sure the camp ground wired their end correctly! Any hardware store should have one.
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Old 09-09-2015, 01:28 PM   #11
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Thank you everyone!!
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