Thread Tools Search this Thread Display Modes
Old 07-11-2008, 05:50 PM   #1
Rivet Master
guy99's Avatar
1984 31' Airstream310
Dunsmuir , California
Join Date: May 2004
Posts: 1,336
Images: 16
Maintenance of power cords

In another thread I have recounted how my power cord melted.

It seems that high resistance developed between the male plug on my power cord and the female end of a 30 amp extension. This generated heat and the resulting melt down.

Its not clear whether it was poor quality connectors or poor maintenance on my part which caused this.

So, what is the best way to keep the connections from developing resistance?

In the past I have cleaned the blades of male connectors with emery paper and used an emery board to clean female connectors.

Is this proper?

Is there anything I can put on/in the connectors to reduce corrision and/or increase conductivity?

Dielectric grease?

If you want others to be happy, practice compassion.
If you want to be happy, practice compassion - The Dalai Lama

1984 310 Limited Motorhome
Courtesy Parking (W/S/E/Wi-Fi) on I-5 in Northern California, 70 miles from Oregon border
guy99 is offline   Reply With Quote
Old 07-11-2008, 06:10 PM   #2
Rivet Master
TomW's Avatar
1967 26' Overlander
Huntsville , Alabama
Join Date: Dec 2003
Posts: 2,930
Images: 2
That was about 30 years ago

I spray the 7-pin trailer-to-tow-vehicle connector yearly with silicone spray.

Dielelectric grease, BTW, is silicone based.

The use of a spray can, IMO, will rinse out debris.

Caution is warranted with too much connector sanding. Most, if not all, connectors are plated. I.e. a structual base metal will be coated with a more conductive material. Sand past the coating and you're in trouble.

I learned this the hard way with the multiple relay contacts on my first reel-to-reel tape transport. Sweet unit - triple sychronomous motors with the only moving part being the pinch roller. Worked like a dream after the first time I sanded the contacts.

Ten or 20 reels later I was back to square one. More sanding/cleaning. Five or ten reels later.... you get the idea.

I replaced all the relays (no small cost issue for a teenager), and had no more problems.

If you are worried about oxidation, I recommend nothing more harsh than 600 grit sandpaper.

TomW is offline   Reply With Quote

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
Day/Night Pleated Window shades with broken cords brodjeaw Upholstery, Blinds, Walls & Interior Finishes 2 12-03-2007 06:23 PM
Too much maintenance? nickcrowhurst General Repair Forum 10 10-31-2007 03:50 AM
Shore power and battery power problems jfremstad Electrical - Systems, Generators, Batteries & Solar 5 05-03-2007 08:23 AM
Required Cords? Phil Gobie Electrical - Systems, Generators, Batteries & Solar 3 11-15-2006 11:27 PM
AC Maintenance 101......... enduroryda Furnaces, Heaters, Fireplaces & Air Conditioning 18 08-21-2006 12:55 AM

Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:57 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.