Way Outta Control
Join Date: Sep 1999
Location: The Palouse
Thanked 3 Times in 3 Posts
Just a note on the aluminum body and it's conductive properites. It's a good conductor... however, in home and mobile homes the wriing will expand and contract with current flow. The expansion and contraction rates are different from the rates of the terminations for the wire. With this problem, the wire heats the point of termination. More resistance, more current, more heat and it's burned more than one home, or mobile home, to the ground. The building industry started to use a flux compound on the terminations. This makes up for the expansion/conraction problems.
You're not going to see that type of current and heat problems in a Jeep tub, excepting perhaps under heavy winching conditons... and then you'd best be running individual ground return wires anyway.
The other problems I can think of with aluminum tubs:
1. Dissimilar metal corrosion.
2. Fatique cracking.
3. More difficult for the shadetree mechanic to repiar if panels are bashed.
4. The metal is softer, and will gouge easier (unless anodized).
Happy Holidays and Safe Jeepin'