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Old 05-09-2016, 09:08 AM   #11
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Originally Posted by Hohenwald48 View Post
The overheating coiled power cord is a myth. Unless you keep your power cord neatly coiled around a ferrite core.


Pull out what you need and stuff it back in when done.
Its not a myth.

A coiled cord, or a cord in any way where it won't get the air circulation that is needed to cool it can over heat and melt.

However, this is really only an issue when running near the max capacity of the cord for most of us.
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Old 05-09-2016, 08:53 PM   #12
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We replaced ours with a detachable cord because it took too long to put it away - up to half an hour, 'cause it wouldn't work right, and it was pulling the face-plate off when we pulled it out. We think the detachable cord's the way to go.
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Old 05-09-2016, 11:01 PM   #13
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A properly sized cord protected by a properly sized circuit breaker will not melt. The portion of the cord outside the TT in the full sun will get hotter than the portion of the cord in the air conditioned TT. The plywood box that the cord is in has plenty of airspace and the cord will not be in a neat coil.
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Old 05-10-2016, 07:11 AM   #14
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Originally Posted by ODH View Post
A properly sized cord protected by a properly sized circuit breaker will not melt. The portion of the cord outside the TT in the full sun will get hotter than the portion of the cord in the air conditioned TT. The plywood box that the cord is in has plenty of airspace and the cord will not be in a neat coil.
Probably true but its still a PITA to shove that cord back into the side of the RV. Then when it is 20 degrees and you try to pull that cord out you may find a tangle that won't come out. A pile of cord stuffed inside your RV may not burn it down but there are a lot of reasons to change it out.
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Old 05-10-2016, 07:22 AM   #15
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Wow...I never realized any of this. I've always thought you were supposed to pull the cord all the way out. At least that's what I always did. It wasn't that much of an issue putting the cord back in. Took what?..2 minutes tops. Eh..is what it is.
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Old 05-10-2016, 08:06 AM   #16
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If its not a problem for you...don't make it one.
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Old 05-10-2016, 08:16 AM   #17
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Originally Posted by Bassdogs View Post
If running the AC or a couple elec heaters you could overheat the coiled up cord. Maybe or maybe not, but there is a simple solution. I am in to simple solutions. Cut off the cord leaving maybe 5 ' on the outside. install a male plug on the short piece. Then install a female plug on the other end of the longer cord. You can order the replacement plugs on Amazon for less than $20. You now only have to stuff the short cord and can coil up the longer one that is now a 30amp extension cord. Make sure you leave 5' or more so you can tuck it under the TT to keep the plug connections out of the weather.

Problem solved. I left enough on the short cord that I can plug in my Honda 2k for a quick overnite at Wally world.
This is essentially what the 'install kit' for a Hughes Autoformer does. It gives me a 2-3' cord with a male receptacle that gets wired into the electrical box where the original 25' cord was. You than take the end of the original 25' cord and put a female receptacle on it. Plug the short cord into the Autoformer, plug the extension into the other side of the Autoformer.

I always leave my Autoformer in the electrical bay w/ the door cracked open. I'm still unsure if that's wise or not.
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Old 05-10-2016, 10:47 AM   #18
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Originally Posted by apr1967 View Post
Its not a myth.

A coiled cord, or a cord in any way where it won't get the air circulation that is needed to cool it can over heat and melt.

However, this is really only an issue when running near the max capacity of the cord for most of us.
Well, you'll have to provide some proof of your position to convince folks with a little common sense. There are 10's of thousands of high end motorhomes wired for 50 AMP service running around with automatic and manual power cord reels. There are probably 100's of thousands of power cord reels used in various shops and factories all around the country. Inductive heating of RV power cords just doesn't happen.

If you are correct there would be dozens of fires and melted cords every day. Bet you can't find a single documented case of an RV cord overheating and melting from being coiled. An overloaded cord maybe but not because of being coiled. The coiled cord overheating myth ranks right up there with the daddy long legs being the most poisonous spider myth.

Now if you're running your 30A RV on a 100' 14 gauge extension cord you'll generate some significant resistive heating but it has nothing to do with being coiled.
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Old 05-10-2016, 11:36 AM   #19
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Originally Posted by SkyBound View Post
At the provincial parks here in Canada, you pull out all of your available cord, then grab your 50' extension cord, and then grab your 25' extension cord, plug them all together, realize the power post is still 6 inches too far away, hitch up and move the rig a bit closer, then plug in.
This made me laugh...

I only pull out what I need for no other reason than I don't like extra cord laying on the ground.
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Old 05-10-2016, 12:07 PM   #20
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With my Popup trailer I always pulled out only what I needed, mainly because I didn't want much of it laying on the ground as a potential trip hazard and it would get wet and dirty which made it more of a chore to put away. Its also more difficult when its cold outside and cord is stiff. However, when I bought my 2016 27DSRL, the owner's manual says this:

"WARNING
The power cord must be fully extended when in use and not left coiled in the
electrical compartment or on the ground. If the power cord is left coiled, it may potentially create enough heat to melt its protective casing."

So, I've been pulling it all the way out. I don't like to do so, but I thought it was a safety hazard. Now, I'm rethinking that practice and may go back to only pulling out what I need.
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