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

1. Most electric service providers require interactive PV equipment to comply with which for interconnection to their distribution grid?

A) UL 1741
B) UL 2703
C) UL 60947-1
D) UL 16998

2. Inspection of a new PV installation shows that the dwelling uses a galvanized water pipe for its grounding electrode and that the PV system now shares the connection. Which of the following is an acceptable supplemental electrode method to ensure the integrity of having a grounding electrode?

A) Connecting the service panel to an auxiliary ground used by a lightning protection system
B) Connecting the water pipe to the service entrance panel metal structure
C) Connection the service panel to a copper-clad steel ground rod near the panel
D) Connecting the water pipe to a gas pipe that is known to be solidly grounded

3. An installer is hired to troubleshoot a 10-year-old roottop system with open-circuitvoltage of 300V. The ground-fault detection (GFD) device has tripped. The insulation on the exposed source circuit cables has deterlorated with multiple cracks and has no flexibility. Which concern is the MOST likely safely issue when servicing this array?

A) Ungrounded conductors are conducing current event the ground-fault device has activated.
B) Cracked insulation has allowed water intrusion that resulted in oxidation of the copper conductors.
C) Insulation has become an electrical conductor since it has changed its composition.
D) Short-circuit current is present at the PV source-circuit terminals of the disconnect device because of electrical leakage.

4. Which of the following should a PV installer do during dc insulation resistance testing?

A) Connect the megohmmeters's negative terminal to the dc circuit insulation
B) Close ac and dc disconnects and have the system running for at least 5 minutes before testing.
C) Remove surge suppression equipment from the circuit being tested.
D) Wait until is raining and all wiring is damp to conduct the test.

5. Which is a requirement for designated battery rooms?

A) must be equipped withpanic hardware and open m the directionof egress.
B) Battery cabinets, racks, or trays must have a minimum clearance of 12 in. from any wall.
C) illumination shall be provided by lightingoutlets controlled by automated means only.
D) Gas pipe equipment must be constructed and installed for a Hazardous Class I location.

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