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

1. A PV array is installed with a rapid shutdown system per NEC 690.12. The array is 15 feet from the service entrance. What is the maximum voltage allowed within the array boundary 30 seconds after shutdown initiation?

A) 30V
B) 120V
C) 80V
D) 240V

2. Which of the following MUST be referenced for determining a site's design wind speed?

A) The module manufacture's design wind speed
B) The jurisdiction's local building code in effect
C) The ASHRAE Handbook_fundamentals in effect
D) The NEC version in effect

3. When installing an ungrounded PV system with an open-circuit voltage of 450Vdc and a maximum voltage of
3000Vdc which procedures should be followed to establish an electrically safe condition?

A) Verify that disconnecting device blades are closed and test conductors using an adequately rated detector.
B) Mount inverters on nonconductive supports and temporarily ground one dc circuit conductor.
C) Determine possible sources electrical supply an avoid exposure to energized conductors or parts.
D) Apply lockout/tagout devices and install a listed isolation transformer.

4. An installer troubleshooting a ground-mounted array finds It to be performing as expected most of the time, but a ground-fault error is indicated on hot days. The inverter is in a shaded location. Which of the following should the installer check for FIRST when troubleshooting this array?

A) High voltage
B) Loose module connections
C) Pinched module wiring
D) Intermittent ground connections

5. A PV system equipped with rapid shutdown requires a label stating ''RAPID SHUTDOWN SWITCH FOR SOLAR PV SYSTEM''.
Which is the BEST description of where this label is required?

A) On or within 3 ft. of the ac disconnect
B) On or within 3 ft. of the ac disconnect
C) On or within 3 ft. of the ac disconnect
D) On or within 3 ft. of the ac disconnect

Solutions: