PVIP 試験問題を無料オンラインアクセス

A PV module is mounted with a 2-inch standoff from a shingle roof. What is the minimum clearance required for fire access per the International Fire Code (IFC)?

• A.3 inches
• B.6 inches
• C.1 inch
• D.9 inches

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.There is an intermittent inverter failure that is causing production to be lower than expected and the inverter should be repaired.
• B.The system has experienced above-average degradation and a module warranty claim should be explored.
• C.A combination of normal module degradation combined with cloudy weather has caused lower output in the past few years.
• D.There is a problem with the DAS because the peak sun hours do not correlate with production values and the das should be repaired.

A site survey indicates a residential roof with a 4:12 pitch facing 20° east of south. The local latitude is 35°N, and the optimal tilt for maximum annual production is equal to latitude. What adjustment should be made to compensate for the roof's orientation and tilt to achieve near-optimal output?

• A.Install adjustable racking to match 35° tilt
• B.No adjustment needed; output loss is negligible
• C.Rotate modules 20° west to face true south
• D.Increase array capacity by 5%

When doing initial inspections on a PV system that was installed using racking that is not compliant with UL.
2703, an inspector should pay special attention to which electrical attribute?

• A.The grounding conductor must be bonded directly to the primary grounding electrode.
• B.The equipment grounding conductor must be irreversibly spliced.
• C.Each PV module needs to be bonded to the equipment grounding conductor.
• D.Racking needs to be bonded to a supplemental grounding electrode conductor.

A PV array is installed near a pool. What is the minimum distance required from the water's edge per NEC
690.31?

• A.5 feet
• B.10 feet
• C.20 feet
• D.15 feet