I've been trying to eliminate hot spots in the primary circuit of a
relatively high current (~3000 amp) drsstc by replacing high resistance
connection points with copper. Even a one-inch length of 3/8-inch brass
bolt can generate enough heat to melt the solder right out of a terminal
lug. Which raise another interesting point, what about solder? It has
ten times the resistance of copper so maybe all lugs should be crimped.
I only soldered them because I don't own a crimper large enough to deal
with #2 welding cable. But I digress. I've not had any success locating
a source for copper nuts and bolts, probably because copper isn't strong
enough to be consider a fastener, and so have been force to machine my
own. I would much rather just plunk down the credit card. Does anybody
know of a good source for copper hardware?
Dave
Pleasanton, ca
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