Q. How is the conductor ampacity for photovoltaic (PV) circuits calculated? A. PV circuit conductors must be sized to the larger of 690.8(B)(2)(a) or 690.8(B)(2)(b). Sizing according to 690.8(B)(2)(a) ...
All questions and answers are based on the 2008 NEC. Q. We have a 400A, 3-phase feeder that we want to wire with two parallel sets of 3/0 AWG conductors in the same raceway. Is this acceptable? A. As ...
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