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. 10 feet
B. 15 feet
C. 8 feet
D. 12 feet
正解:A
質問 2:
Per NEC 690.11, what is the maximum allowable DC voltage for a PV system requiring arc-fault circuit protection?
A. 1000V
B. 150V
C. 80V
D. 600V
正解:A
質問 3:
According to the NEC, where on a residential PV system MUST the labeling describing the type of rapid shutdown be located?
A. At point on the residence designated by the AKJ and fire marshal
B. On the rapid shutdown initiation device.
C. On or no more than 1 m (3. 3 ft) from the service disconnecting meant
D. A close as practicable to the PV array requiring rapid shutdown
正解:B
質問 4:
The following dc portion of a PV schematic (functionally grounded conductor not shown) is submitted to the building official for permit approval. The building official, who also is he AHJ, allow the system to be installed by requiring what NEC-required MINIMUM size equipment grounding conductor at Location A?

A. #6 aluminum
B. #12 aluminum
C. #8 copper
D. #10 copper
正解:D
質問 5:
A PV module has a NOCT of 47°C. At 1000 W/m² and 35°C ambient, what is the cell temperature?
A. 55°C
B. 47°C
C. 59°C
D. 63°C
正解:C
質問 6:
When commissioning a PV system, which test is most critical to verify proper operation of the array before connecting to the inverter?
A. Short-circuit current test
B. Ground-fault detection test
C. Open-circuit voltage test
D. Insulation resistance test
正解:D
質問 7:
Which of the following is an NEC-indicate means to identify PV source and output circuits at accessible points of termination connection, and splices?
A. Insulation type
B. Conduct stickers
C. Tagging
D. Placards
正解:C
質問 8:
A grid-tied PV system uses a transformerless inverter with a maximum DC input of 1000V. The array consists of 20 modules, each with a Voc of 45V. What is the NEC 690.7 correction factor for a low temperature of -15° C if the temperature coefficient is -0.30%/°C?
A. 1.21
B. 1.18
C. 1.12
D. 1.15
正解:B
原口** -
先日PVIP問題集を購入し、今日当該の試験に合格しました。すごい的中率で問題がほぼ出ました。
ありがとうございました。