Using a 3-phase,208Vac wye-4 wire feeder from power company...

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Question by Chas
Submitted on 4/27/2004
Related FAQ: Electrical Wiring FAQ (Part 1 of 2)
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Using a 3-phase,208Vac wye-4 wire feeder from power company to a main circuit breaker for supply power to 6 single phase, -60 amp panels and 1-100 amp panel. I want to determine conductor size and to the main panel circuit breaker size required.

Answer by ranga
Submitted on 12/2/2005
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for 6 single phase -60amp panel 50square mm copper or alluminium cable is o.k to each single phases.and 100 amps circuit breaker is sufficient. for 1-100amp panel 95 square mm copper or alluminium cable is o.k 120amps circuit breaker

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