Wiring Methods for PV Systems

Exposed PV source and output circuits operating at greater than _____ must be installed in a Chapter 3 wiring method anytime the conductors are installed in a(n) _____ location.

a) 30V, accessible
b) 30V, readily accessible
c) 60V, accessible
d) 60V, readily accessible

See answer and applicable Code reference

The correct answer is: b) 30V, readily accessible

The wiring methods permitted for solar photovoltaic systems can be found in Part IV of Art. 690. As noted in a portion of 690.31(A), "Where photovoltaic source and output circuits operating at maximum system voltages greater than 30V are installed in readily accessible locations, circuit conductors shall be installed in a raceway."