I'm going to be installing a 100A sub panel in my garage and need about 125 feet of cable. The price of aluminum is about 1/3 of copper so I'm just wondering what needs to be done differently when installing aluminum vs copper? Is it worth the hassel and/or risk?

Thanks in adance!
Pete

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Originally Posted by Radar13

I'm going to be installing a 100A sub panel in my garage and need about 125 feet of cable. The price of aluminum is about 1/3 of copper so I'm just wondering what needs to be done differently when installing aluminum vs copper? Is it worth the hassel and/or risk?

Thanks in adance!
Pete

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Nothing wrong with Aluminum for the panel cable size needed. A 100 amp sub panel will need a 4 wire cable like SER. Use an oxide inhibitor before torguing in the lugs. #1 SER will work fine with room to spare. Nm

Radar, If the garage is detached then SER is not for underground direct burial like USE is commonly used. Nm