NABCEP PVIP : PV Installation Professional (PVIP) Board Certification

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NABCEP PVIP Exam Syllabus Topics:

NABCEP PV Installation Professional (PVIP) Board Certification Sample Questions:

1. A PV array is located 8 feet from a property line. What is the minimum height above ground for exposed DC conductors per NEC 690.31?

A) 12 feet
B) 15 feet
C) 8 feet
D) 10 feet

2. A PV system requires labeling per NEC 690.56. Which of the following must be posted at the point of interconnection?

A) "Maximum AC Voltage"
B) "PV System Disconnect"
C) "Do Not Disconnect Under Load"
D) "Warning: Dual Power Sources"

3. A PV array is tested with an IV curve tracer. The fill factor is 0.70, lower than the expected 0.80. What does this indicate?

A) Open-circuit voltage drop
B) Shunt resistance decrease
C) Short-circuit current rise
D) Series resistance increase

4. When installing a ground-mounted PV array, which of the following grounding methods complies with NEC Article 690 requirements for equipment grounding?

A) Bonding all metal parts to the equipment grounding conductor tied to the main service ground
B) Connecting the module frames to the racking with bare copper wire only
C) Using a grounding electrode conductor connected to a separate ground rod for each array
D) Installing a ground-fault circuit interrupter (GFCI) on the DC side of the system

5. A AWG THWN-2 PV output conductors from two PV arrays are run in the same 3 in, conduit to their respective functionally grounded inverters in the building. The three PV source circuits are each protected by a 15A fuse in the combiner box at the array. The conduit, which is strapped directly to the roof, is exposed to design temperatures of 140' F (60' C) during its 30 ft.
Exposed run. What is the MAXIMUM current carrying capability value of the PV output conductors?

A) 61A
B) 34A
C) 54A
D) 42A

Solutions: