Aluminum Wiring

[tphillips]

I have a 1967 globetrotter and from what I can tell, the 12 volt system is wired using aluminum wiring while the 110 volt is copper. Is this anything to be overly concerned about? I did notice that the PO connected a new water pump with copper connections to the aluminum wiring in the trailer just by twisting the two together, which I assume will need to be altered to eliminate whatever risk is present with aluminum and copper together, but otherwise does having the 12 volt on aluminum present any problems?

[Dan@LED4RV]

With more than 10 years experience in the shop of the Out-of-Doors Mart
I have seen this before and have never seen it to be a problem.

[TomW]

Originally Posted by tphillips

I have a 1967 globetrotter and from what I can tell, the 12 volt system is wired using aluminum wiring while the 110 volt is copper. ...

Your Globetrotter was built in California.

My Overlander was built in Ohio with the reverse of the above.

If your 12 volt systems work as expected then you have no problem. If not, then you must battle aluminum oxide (rust) on the connections. Considering a 12 volt system, there is no appreciable safety issue involved.

Ohio-built Airstreams need more attention.

Tom

[bryanl]

use some dielectric grease on the connections -Dielectric Silicone Grease - you can find it at most hardware and automotive stores.