Here's how to do the aluminum connections. First, do NOT nick the strands
when stripping the insulation! The nicked strands break right off. Second,
wire brush the bare wire with a stainless wirebrush. Aluminum oxide, unlike
copper oxide is one of the best insulators known. Third, use an antioxidant
compound, Penetrox is the brand we used to use. It is conductive, so don't
get it on the insulation. Fourth, tighten the setscrews firmly. Fifth, and
VERY important, tighten the setscrews again the next day. Aluminum creeps,
and they will often be loose by the next day. Pretty stable after that, but
checking once a year or so is just smart. Finally, aluminum connections
come loose if they are overloaded, because the aluminum expands a lot and
squeezes out like toothpaste. So don't be a cheap ass and overload it, use
the right size.
Gary H. Lucas
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