NABCEP PV Installation Professional (PVIP) Board Certification : PVIP

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NABCEP PVIP Exam Syllabus Topics:

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

1. During a PV system inspection, an installer notices that the rapid shutdown system fails to de-energize the array within 30 seconds of initiation. What is the most likely cause based on NEC 690.12 requirements?

A) The rapid shutdown switch is installed more than 10 feet from the array
B) The inverter is not listed for rapid shutdown compliance
C) The system lacks a compatible rapid shutdown device
D) The array conductors exceed the maximum allowable voltage

2. A PV system includes a 600V DC disconnect with a fault current rating of 10 kA. The available fault current from the inverter is 12 kA. What must be done to comply with NEC 110.10?

A) Install a current-limiting fuse upstream
B) Replace the disconnect with a 15 kA-rated unit
C) Reduce the array size to lower fault current
D) No action needed; the rating is sufficient

3. A PV system designer is selecting an inverter for a 12 kW array with a maximum power point voltage range of 300-450V DC. Which inverter specification is most critical to verify compatibility?

A) Maximum AC output current
B) DC input voltage operating range
C) Inverter efficiency rating
D) Nominal AC output voltage

4. A module's Voc is 40V at STC. At -5°C with a coefficient of -0.33%/°C, what is the Voc?

A) 45.0V
B) 42.0V
C) 43.0V
D) 44.0V

5. A PV technician is installing a 6.5KWac inverter using a 40A backfed breaker. The single line shows a 200A panelboard with a 200A breaker, but the installer finds that the panelbord actually has a 150A main breaker.
Which of the following is the CORRECT installation option?

A) Replace the 200A panel with a 150A panel.
B) Change the main circuit breaker to a 200A unit.
C) Install a 30A backfed circuit breaker.
D) Complete the installation as noted above.

Solutions: