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apeman76 08-14-2007 02:46 PM

copper or aluminium wire
 
hi again

i wanted some comments or advice on using copper or aluminium wire.im going from a pole mounted main panel to a sub panel in my work shop. it will be under ground in a conduit. it will have a max load of 50amps..a continuas load of 25 amps. i was going to use 6-3 copper. local place where i get wire told me it would be cheaper to go with aluminium wire.he said use #4 urd . all the research ive done. seems to say stay away from aluminium wire thanks for any help

JGarth 08-15-2007 11:43 AM

There is nothing at all negative with respect to using Aluminum as SERVICE cable, providing the termination lugs are rated for it, and it is done properly.
I'm not a fan of direct burial cable....you would be much better of, especially in the long run of using conduit (PVC if approved for your area), then pulling individual conductors.


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