RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-07-2018, 06:58 PM   #1
Rivet Master
 
Frank&Mike's Avatar
 
2016 27' Flying Cloud
Georgetown , Texas
Join Date: Oct 2008
Posts: 795
Images: 2
30 AMP to 50 AMP Adapter - Melted

What would cause the 50 AMP adapter, to plug the 30 AMP cord into 50 AMP service, to melt onto the 30 AMP cord? Photos attached.

Also, would this situation now render the 30 AMP cord as unsafe for use?
Attached Thumbnails
Click image for larger version

Name:	30 AMP Cord.jpg
Views:	100
Size:	182.5 KB
ID:	324659   Click image for larger version

Name:	50 AMP Adapter.jpg
Views:	88
Size:	226.6 KB
ID:	324660  

Frank&Mike is offline   Reply With Quote
Old 10-07-2018, 07:09 PM   #2
3 Rivet Member
 
J-Dog's Avatar

 
2014 27' Flying Cloud
Fullerton , California
Join Date: Aug 2016
Posts: 108
Just going by the looks of the adapter plug photograph, it appear there may have been some corrosion going on, causing perhaps some resistance in the connection which can produce a significant amount of heat.
After inspecting the whole electrical cord and finding no other signs of damage I would probably purchase a replacement 30 amp plug for the end of the cord. In my opinion the adapter is no longer serviceable and needs to be replaced.
J-Dog is offline   Reply With Quote
Old 10-07-2018, 07:09 PM   #3
The Aluminum Tent 3
 
pcskier's Avatar
 
2014 23' Flying Cloud
Park City , Utah
Join Date: Aug 2015
Posts: 1,719
Dirty, corroded or otherwise poor/loose connection. If the cord looks OK, clean up the connectors with some sandpaper. Definitely replace that adapter with a new, fresh, tight one. Then try again. Be wary of the old cord getting unusually warm near the plug end or the plug housing. If so, replace cord or at least replace the plug end of the cord.
pcskier is offline   Reply With Quote
Old 10-07-2018, 07:11 PM   #4
Rivet Master
 
SteveSueMac's Avatar

 
2012 27' Flying Cloud
W , New England
Join Date: Oct 2012
Posts: 7,397
One cause could be a loose fitting connection. If you had to angle it or it was hanging awkwardly and didn’t make a tight fit that could do it. I don’t know whether the whole cable is shot but replacing the plug wouldn’t be a bad idea - and I’d replace the adapter too. Others with more experience will have better answers than this. Good luck!
SteveSueMac is offline   Reply With Quote
Old 10-07-2018, 07:18 PM   #5
Rivet Master
 
Al and Missy's Avatar

 
2002 30' Classic S/O
Melbourne Beach , Florida
Join Date: Nov 2013
Posts: 4,166
The insulation may be damaged for an inch or so into the cable from heat conducted through the copper wire. You will be able to see this. This will be heat damage; it shouldn't be over-current damage as your wire is rated for 30 amps and is protected by a 30A breaker in the trailer's power panel. Just cut the cord back far enough that the insulation is not discolored, put on a new plug, and get a new adapter.

I have had a similar problem with the yellow Camco plugs and sockets. I need to change my cable plug and the socket on my extension cable.

I'm looking for an alternate supplier.


Al
__________________
“You cannot reason someone out of a position they have not been reasoned into"
Al, K5TAN and Missy, N4RGO WBCCI 1322
2002 Classic 30 Slideout -S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
Al and Missy is offline   Reply With Quote
Old 10-07-2018, 07:21 PM   #6
Rivet Master
 
2007 27' Safari FB SE
NW Oregon in a nice spot , Oregon
Join Date: Sep 2011
Posts: 579
Any rain storms or sprinkler systems that may have given the connection a water bath?
bweybright is offline   Reply With Quote
Old 10-07-2018, 07:22 PM   #7
Rivet Master
Commercial Member
 
New Borockton , Alabama
Join Date: Sep 2002
Posts: 1,593
Images: 21
Heat and resistance possibly lose connection. We usually see it on the trailer side because of the L5 type plug not having enough metal to metal connection. Hence the invention of the Smartplug that has 20X more metal surface.
I too agree to put a new plug on the end of that cord.
__________________
Randy...Converters, Inverters, Trimetric, Surge Protectors, Zamp, Smartplug, AGM Batts
888-828-1893
Bestconverter.com
68 Overlander is offline   Reply With Quote
Old 10-07-2018, 07:36 PM   #8
Rivet Puller
 
SeeMore's Avatar
 
2003 28' Safari S/O
Atlanta Burbs , Georgia
Join Date: Jul 2010
Posts: 1,618
Images: 3
Not mentioned but also part of your next steps - replace the adapter.
__________________
"Good judgement comes from experience. Experience comes from bad judgement."

Sir Tristan
Air #48582, S/SO #003, WBCCI #4584
SeeMore is offline   Reply With Quote
Old 10-07-2018, 07:59 PM   #9
Rivet Master
 
Frank&Mike's Avatar
 
2016 27' Flying Cloud
Georgetown , Texas
Join Date: Oct 2008
Posts: 795
Images: 2
Thank you all for your assessment and recommendations. Sounds like I better replace the plug (at minimum) ... I may just purchase an entire new cord/plug. The 50 AMP adapter is definitely going in the trash.
Frank&Mike is offline   Reply With Quote
Old 10-07-2018, 08:03 PM   #10
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 9,062
Hi

Errrr.... one other possibility ....

Turning on more than 30A of loads and hoping for the breaker to keep you ok. Breakers *do* wear out. Running ...umm... both AC's ... on a 30A circuit has indeed happened. Not that I'm confessing to anything ....

Bob
uncle_bob is offline   Reply With Quote
Old 10-07-2018, 10:18 PM   #11
Rivet Master
 
2018 28' International
Fayetteville , Georgia
Join Date: Jan 2018
Posts: 718
Replace the 30 amp cord and the adapter. Time for a bit of dielectric grease...
brick
__________________
brick
2018 International Serenity
Cute wife...
brick1 is offline   Reply With Quote
Old 10-08-2018, 10:39 AM   #12
3 Rivet Member

 
Annapolis , Maryland
Join Date: Jul 2017
Posts: 130
Dielectric grease

As Brick suggests, we learned from boating that dielectric grease really helps to reduce corrosion. A light coating on the male ends will work. The same is true for the TV umbilical.
rhpeahl is offline   Reply With Quote
Old 10-08-2018, 11:04 AM   #13
bhooves
 
2013 27' Flying Cloud
Livingston , Texas
Join Date: Aug 2011
Posts: 29
These adapters can cause a fire

I have been advised to never, ever use one of these adapters and they can cause a fire. I seldom use my "anaconda" (50 amp power cord). I just bought a 30 power cord and haven't looked back. My 30 amp cord has turned out to be the only one that I need to use.

A side note: it is a bitch to wind or fold up the the 50 amp cord after using it in cold weather. For me it has proven to be a wrestling match that I have begin to fear that that I might lose.
bhooves is offline   Reply With Quote
Old 10-08-2018, 11:52 AM   #14
Home of Vortex tuning
 
CDONA's Avatar
 
2013 27' FB Eddie Bauer
Spearfish , South Dakota
Join Date: Dec 2009
Posts: 607
Images: 10
Some of those style adapters have a warning tag about full time use/max load time.
__________________
"Chip Tank" is in Redcrest Ca.
CDONA is offline   Reply With Quote
Old 10-08-2018, 12:50 PM   #15
Rivet Master
 
2018 28' International
Fayetteville , Georgia
Join Date: Jan 2018
Posts: 718
Don’t risk a fire! But a new power cord.

Consider adding a quality surge protector and monitor the amperage, especially when on a 30 amp service.
__________________
brick
2018 International Serenity
Cute wife...
brick1 is offline   Reply With Quote
Old 10-08-2018, 01:26 PM   #16
Fuil-Timers
 
DreamStreamr's Avatar
 
2005 25' International CCD
Pine Swamp , North Carolina
Join Date: Aug 2005
Posts: 675
Images: 38
Send a message via Skype™ to DreamStreamr
We’ve melted 30a cord plugs 2X in 14 years, none in the last ten years. Our 25’ trailer’s max running load (actual, not rated) is 20a per the ammeter on our EMS. FWIW, we’ve never tripped a load breaker in or out of the trailer (other than gfci and it wasn’t load-related).

In both cases we had plugged into worn and loose receptacles at campgrounds. In both cases the plugs weren’t re-usable after the incident. We try to keep the plug blades clean and if we find power post is too loose to securely hold the plug then we either ask for a move or we try an adapter to use a different receptacle.
__________________
Chasing 75 Degrees,

Jim N5RTG
dreamstreamr.com
DreamStreamr is offline   Reply With Quote
Old 10-08-2018, 08:26 PM   #17
Rivet Master
 
gklott's Avatar

 
2004 30' Classic
Johnson City , Texas
Join Date: Jun 2003
Posts: 584
Images: 86
SmartPlug upgrade

Recommend replacing as everyone said. Additionally, consider replacing what you have with a SmartPlug. We are glad we did.
__________________
Gus - KR4K : Mary - K5MCL
2004 30ft. Classic
2017 Infiniti QX80 Limited
ProPride 3P/Prodigy P3
gklott is offline   Reply With Quote
Old 10-14-2018, 11:38 AM   #18
4 Rivet Member
 
vintageracer's Avatar
 
1977 Argosy Minuet 6.0 Metre
Nashville , Tennessee
Join Date: Dec 2015
Posts: 339
The campground pedestal into which you plugged your RV could have been the problem.

Did you properly electrically test the pedestal into which you plugged into before you plugged into the pedestal and therefore are you positive that the pedestal into which you plugged into was properly wired?

Suggest you look at several of the video's and links below that can provide tests and recommend electrical test equipment to ensure the pedestal into which you plug your Airstream is properly wired and therefore will not cause any number of electrical issues that can range from minor to deadly:

https://yourfulltimervliving.com/rv-...of-a-young-boy


https://rvtravel.com/proper-rv-chass...kin-condition/



__________________
Mike

Remember "Drive Fast, Turn Heads, Break Hearts"
vintageracer is offline   Reply With Quote
Old 10-14-2018, 12:56 PM   #19
2 Rivet Member
 
JandDcam's Avatar
 
2013 25' FB Flying Cloud
Flower Mound , Texas
Join Date: Sep 2012
Posts: 25
Marinco makes excellent quality replacement parts. Used them on previous boat cords and now the AS ones
__________________
Jim and Donna
JandDcam is offline   Reply With Quote
Old 10-14-2018, 01:39 PM   #20
2 Rivet Member
 
1964 26' Overlander
Palmyra , Virginia
Join Date: Aug 2017
Posts: 68
Blog Entries: 1
Corrosion or poor/loose connection.
Without a good connection you build up heat.
Too much and things melt.

You should replace the connector on the end of the cord and get a new adaptor.
Cut off at least 3" of cord to get away from any heat damaged insultation.
Replace adaptor whenever you see and signs of corrosion or if it becomes very easy to plug cord into. If you use it regularly consider carrying g a new spare so you have no reason not to switch to a new one when needed.
For myself I use a water tight twistlock on the end of my cord, and then have 30 and 50 amp plugs with a short run of wire to a water tight twistlock. I find they are far more durable and you don't end up with an adaptor being partially unplugged due to the side loading of the cord. Also fits much nearer under the cover keeping it shelter from the elements.
Scoutx is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
50 Amp to 30 Amp adapter to 20 Amp outlet?? Reynolds Our Community 15 08-04-2017 08:16 AM
Help please! Melted prong on 30 amp plug KenSanLan Electrical - Systems, Generators, Batteries & Solar 15 04-17-2016 08:38 PM
Melted exterior floodlight cover wacnstac Lights - Interior & Exterior 14 03-26-2008 05:09 AM
Alternator wire melted airstream963 Mechanics Corner - Engines, Transmission & More... 5 05-07-2005 07:46 PM
Melted lens? Rickj Electrical - Systems, Generators, Batteries & Solar 3 01-03-2004 12:17 AM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 01:11 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.