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質問 1：
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 2：
The point-of-utility connection of a residential utility-interactive PV system is in the main distribution panel.
If the busbars of the main distribution panel are rated at 200A, and if the distribution panel has a 200A main breaker, the rated output current of the inverter cannot exceed.
A. 32A
B. 200A
C. 24A
D. 40A
正解：A
質問 3：
A ground-fault protection device (GFPD) trips during commissioning. What is the most likely cause per NEC
690.5?
A. Overcurrent in the inverter output
B. Insulation failure between a conductor and ground
C. Open circuit in the array
D. Reverse polarity in a source circuit
正解：B
質問 4：
A homeowner is concerned that a 6kWdc PV system might be experiencing a performance issue. The homeowner has noticed what appears to be declining production. The installer analyzes the following data acquisition system (DAS) results for each year since the installation:
Given the data, which is the MOST likely conclusion to draw?
A. The system has experienced above-average degradation and a module warranty claim should be explored.
B. A combination of normal module degradation combined with cloudy weather has caused lower output in the past few years.
C. There is a problem with the DAS because the peak sun hours do not correlate with production values and the das should be repaired.
D. There is an intermittent inverter failure that is causing production to be lower than expected and the inverter should be repaired.
正解：B
質問 5：
Which electrical connection requires the use of a torque device to complete the connection per NEC requirements?
A. Soldered splices in a conduit body
B. Crimp-on log to the battery cable
C. Underground direct-burial twist-on wire connector
D. Screw terminals on an ac receptacle outlet
正解：B
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 2：
The point-of-utility connection of a residential utility-interactive PV system is in the main distribution panel.
If the busbars of the main distribution panel are rated at 200A, and if the distribution panel has a 200A main breaker, the rated output current of the inverter cannot exceed.
A. 32A
B. 200A
C. 24A
D. 40A
正解：A
質問 3：
A ground-fault protection device (GFPD) trips during commissioning. What is the most likely cause per NEC
690.5?
A. Overcurrent in the inverter output
B. Insulation failure between a conductor and ground
C. Open circuit in the array
D. Reverse polarity in a source circuit
正解：B
質問 4：
A homeowner is concerned that a 6kWdc PV system might be experiencing a performance issue. The homeowner has noticed what appears to be declining production. The installer analyzes the following data acquisition system (DAS) results for each year since the installation:
Given the data, which is the MOST likely conclusion to draw?
A. The system has experienced above-average degradation and a module warranty claim should be explored.
B. A combination of normal module degradation combined with cloudy weather has caused lower output in the past few years.
C. There is a problem with the DAS because the peak sun hours do not correlate with production values and the das should be repaired.
D. There is an intermittent inverter failure that is causing production to be lower than expected and the inverter should be repaired.
正解：B
質問 5：
Which electrical connection requires the use of a torque device to complete the connection per NEC requirements?
A. Soldered splices in a conduit body
B. Crimp-on log to the battery cable
C. Underground direct-burial twist-on wire connector
D. Screw terminals on an ac receptacle outlet
正解：B
Yuuki -
とても詳細に記述されている解説はわかりやすいので
PVIPに苦手意識があるかたでも読みやすいです。