[TenTec] emergency back up power

[Wb5jvt at aol.com]

Aluminum Wire. Why would anyone want to use aluminum wire?
 
A lot of homes were built in the seventies using aluminum wire. Bunches of  
them had fires that started because the connections at that time weren't  
designed for the extra cooefficient of expansion that aluminum has compared to  
copper; thus, loose connection, resistance, heat poof . 
 
Stick with copper unless you are going to build a factory and then consult  
an engineer. This opinion is worth exactly what you are paying for  it.
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