Booms, Busts, and Recoveries Message Board

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Strategies & Market Trends : Booms, Busts, and Recoveries

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To: smolejv@gmx.net who wrote (65823)	7/2/2005 5:42:29 PM
From: Slagle	Read Replies (2) of 74559

Dolinar Re: "Aluminum" For a number of years mobile homes here in the south were wired with aluminum wire and I honestly think that eventually every last one of them with aluminum wiring eventually burned down. They were especially bad in that you had the overheating junctions in close proximity to very combustible varnished wall paneling. Very bad idea. There was a sort of bad joke back then among electricians that the aluminum wired trailer houses were a sort of scheme by the rich to kill off the poor. On the other hand, distribution buss bars in industrial buss duct is always aluminum bar, not copper and I have never heard of a problem. The buss bars are flat with bolted connection, flat to flat. The plug in disconnects never give a problem either, even in fairly corrosive environments, but there you have flat connections to the buss bar under considerable spring tension. WIth round wires twisted or even held by a lug the stiffness of the aluminum along with the high coefficient of thermal expansion really works on the junction. Oxide formation does the rest of the damage. Slagle

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