Hello,
I've strung a 155 foot 2-2/4 underground aluminum cable in conduit 155 feet and 36 inches underground from my barn to the panel in my home which I plan to upgrade from 100 to 200 amps soon. Now, after the trench is filled, my neighbor tells me I must have 4 stands, not three for this circuit, with an extra ground wire?

Can anyone elighten me? Is this true? If so, why the heck would I need an extra ground? I'd hate to run yet another wire after running and burning the exisinting cable already.
:confused:

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Originally Posted by Robertthea

Hello,
I've strung a 155 foot 2-2/4 underground aluminum cable in conduit 155 feet and 36 inches underground from my barn to the panel in my home which I plan to upgrade from 100 to 200 amps soon. Now, after the trench is filled, my neighbor tells me I must have 4 stands, not three for this circuit, with an extra ground wire??

Can anyone elighten me?? Is this true?? If so, why the heck would I need an extra ground?? I'd hate to run yet another wire after running and buring the exisinting cable already.
:confused:

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Three strands will be fine if you drive a ground rod at your new panel(barn). The three strands then will be two for each hot leg and one for neutral, in most house applications around here they only run three wires and a water pipe and the ground rod act as the grounding means. So all should be fine, please be careful...

Quote:

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Originally Posted by electrocuda

three strands will be fine if you drive a ground rod at your new panel(barn). The three strands then will be two for each hot leg and one for neutral, in most house applications around here they only run three wires and a water pipe and the ground rod act as the grounding means. So all should be fine, please be carefull..............

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Thanks. Seemed to me that the three strands were adequate, notwithstanding the ground rod. I promise to be careful and will be calling a qualified person to hook up the circuit.