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Old 06-08-2011, 11:52 AM   #21
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Originally Posted by tafische View Post
My plug melted pretty good about a year ago. It was in a very old pedestal and I can only assume it was a bad connection. The rubber melted some and the prongs were discolored. I purchased an EMS, but that probably wont be a fix-all...it just happens - which is why I always carry an extra plug with me.

One thing I do - I carry a 50 to 30 adapter. Whenever I am at a 50 spot, I use it instead. I figure it is less often used and will be in better shape.
But by doing this, aren't you removing a layer of protection? The cord on your TT is designed to carry 30 amps, but by plugging it into a 50A breaker, there's the potential that the cord could be exposed to 50 amps of current, causing it to fry.

For instance, what would happen if over the years of pulling the cable in and out of the TT, the wires twisted, creating a minor short somewhere before the attachment to the converter or surge suppressor? (just enough contact to cause some resistance, but not enough to trip a 30A breaker.)
If plugged into a 50A breaker, couldn't the load limit of the wires be exceeded, more easily causing a fire?

I think I would always plug my 30A cable into a 30A (or less) breaker, since that's what the cable is designed for- not 50A.
===
Edited to add: And who knows. Maybe that's why your plug melted???
===
Just my 2 cents.

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Old 06-08-2011, 11:58 AM   #22
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But by doing this, aren't you removing a layer of protection? The cord on your TT is designed to carry 30 amps, but by plugging it into a 50A breaker, there's the potential that the cord could be exposed to 50 amps of current, causing it to fry..

Bill
This triggered my memory of "Driveway Camping" in our dealer's parking lot (several times since buying the tt). The shore power was only set up for 50amp. So the service manager had one of the techs give us an a adapter to use. Maybe it's ok to do once in a while if the service people give you one to use overnight? They didn't seem to concerned anyhow. We do keep an adapter with us now, as when traveling, we overnighted a few nights at a cg with only the 50 amp
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Old 06-08-2011, 04:38 PM   #23
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It doesn't matter how much cord is pulled out. Wire that is properly sized for the load and given clean connections is not going to overheat. Stay with the established brands, Marinco, Hubberd, Camco. Why jeapordize your investment by trying to save a few bucks on some Chinese built piece of c __p?

As an aside, every boat in the world that is wired for 30A shore power has #10 three conductor, usually inclosed in a closed space and often bundled with other wiring and the only problems generated are those caused by burned or corroded connections that once start generating heat should be replaced anyway. 50A cords and wiring are done the same way, only using #6 wire, Anything smaller regardless of how short the run is unacceptable.

The advantage to using the Marinco cord is that the molded rubber is yellow and the plug is easily inspected for burning. If it is a dark color, the end needs to be replaced.
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Old 06-08-2011, 04:40 PM   #24
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This triggered my memory of "Driveway Camping" in our dealer's parking lot (several times since buying the tt). The shore power was only set up for 50amp. So the service manager had one of the techs give us an a adapter to use. Maybe it's ok to do once in a while if the service people give you one to use overnight? They didn't seem to concerned anyhow. We do keep an adapter with us now, as when traveling, we overnighted a few nights at a cg with only the 50 amp
The adapter is only going to use one leg of the 220/50A plug, and the breakers on the converter are going to limit you to 30A, so there's no problem with that.
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Old 06-08-2011, 08:21 PM   #25
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The adapter is only going to use one leg of the 220/50A plug, and the breakers on the converter are going to limit you to 30A, so there's no problem with that.
I thought about what Bill said before, and yes it probably does remove a layer of protection - but the 30 amp breaker and the EMS in the camper should catch most any problems. When my cord melted, I was using a 30 amp - which is when I started to use the 50 amp service. I personally think the risk is minimal compared to the problems I have had with the old 30 amp connectors - but that is just me....my other thought was that if it was really a bad idea - and violated electrical code - they would not be allowed to sell the adapter.



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Old 06-09-2011, 02:31 PM   #26
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Well, I'm on my way down to the barn right now to pull it all out. Just running the refrigerator but since all I know about Faraday is that he was a moron cop on Boston Blackie, I'm not taking any chances! :dunce:
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Old 06-10-2011, 05:53 AM   #27
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My power cord is invisibleand goes from the roof of my RV to the sun....LOL I cannot remember when the last time I had my power cord out and plugged in was...
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Old 06-10-2011, 10:03 AM   #28
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My power cord is invisibleand goes from the roof of my RV to the sun....LOL I cannot remember when the last time I had my power cord out and plugged in was...
I am envious of your solar power set-up. It must be quite the system.
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Old 06-10-2011, 10:22 AM   #29
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I am envious of your solar power set-up. It must be quite the system.
One of these days I will get around to photographing it and put it in the mod my rv section...
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Old 08-14-2011, 07:02 PM   #30
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In the manual it says always pull it all the way out no matter what
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Old 08-18-2011, 10:37 AM   #31
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Our owners manual states to do the same, pull all the way out. Do not coil cord or let it over lap.
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Old 08-18-2011, 11:21 AM   #32
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I've read that also and don't know why they say that. 30A through #10 wire isn't going to generate any appreciable amount of heat unless you have some bad connections and that need to be addressed, and at 60 hz, you aren't going to generate any kind of inductive field, and even if you did, on shore power, so what?
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Old 08-18-2011, 01:54 PM   #33
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In my owners manual under a Warning pull all the way out. I am sure the engineers did some research on this matter. Wife and I don't need any problems like burning up the Jayco. Makes for a bad day. Later Ernie
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Old 08-19-2011, 07:38 AM   #34
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I've read that also and don't know why they say that. 30A through #10 wire isn't going to generate any appreciable amount of heat unless you have some bad connections and that need to be addressed, and at 60 hz, you aren't going to generate any kind of inductive field, and even if you did, on shore power, so what?
want a surprise? lay it coiled in the snow with power going through it.(using furnace, coffee maker and TV.. good chance it will melt the snow...
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Old 08-19-2011, 08:17 AM   #35
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Seann45 is absolutely correct. When I was in the Army at Ft. Lewis, we were working in large trailers that contained a mainframe computer system.
The power cables to these vans were about 3" in diameter and carrying 240V.
Of course since we were Army, the cables had to be coiled up very neatly.
We soon found that the cables got really hot. After uncoiling them they remained much cooler.
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Old 04-08-2012, 05:04 AM   #36
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on our walkthru at the dealer they told us to always fully extend the power cord, overheating was the reason.
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