Quiz

Solar Voltaic Systems

1. The NEC state that an “AC Module System” is ______.
(a) PV material that is automatically listed when sold as a system.
(b) A component of a PV system that provides equipment cooling in control cabinets
(c) An assembly of ac modules, wiring methods, materials, and subassemblies that are evaluated, identified, and defined as a system. 
(d) None of the above.

2. Photovoltaic systems with PV system dc circuits operating at _____ volts dc or greater between any two conductors shall be protected by a listed PV arc-fault circuit interrupter or other system components listed to provide equivalent protection.
(a) 80
  (b) 90
(c) 100
(d) 1000

3. PV system dc circuits and Class 1 remote control, signaling, and power-limited circuits of a PV system _____ permitted to occupy the same equipment wiring enclosure
(a) shall not be
(b) shall be with permission of the AHJ
(c) shall be   
(d) has always been

4. Grounding electrodes shall be permitted to be connected directly to the PV module frame(s) or _____
(a) support structure  
(b) any metallic surface present in the system
(c) All the above.
(d) None of the above.

5. PV system circuits installed on or in buildings shall include a _____ to reduce shock hazard for firefighters.
(a) an “on pilot light” to indicate equipment is in operation
(b) rapid shutdown function
(c) audible indicator for power presence
(d) All the above.

6. Which of the following equipment used in a photovoltaic system must be listed based on the NEC Article 690.4(B)?
(a) rapid shutdown equipment
(b) dc circuit controllers
(c) dc combiners
(d) All the above 





Answers:
1. (c) Ref: 690.2
2. (a) Ref. 690.11
3. (c) Ref: 690.31(B)
4. (a) Ref 690.47(B)
5. (b) Ref 690.12
6. (d) Ref 690.4(B)