최신 PVIP 무료덤프 - NABCEP PV Installation Professional (PVIP) Board Certification
A 20 kW array has a measured output of 16 kW at 800 W/m² irradiance. What is the performance loss due to irradiance?
정답: A
Which temperature coefficient is used in the calculation to verify energy production of a PV system?
정답: B
A PV system designer is selecting an inverter for a 12 kW array with a maximum power point voltage range of 300-450V DC. Which inverter specification is most critical to verify compatibility?
정답: A
A 15 kW system has a total derate factor of 0.90. After 5 years, output drops by 2% annually due to degradation. What is the AC output in year 5?
정답: A
A PV module has a NOCT of 47°C. At 1000 W/m² and 35°C ambient, what is the cell temperature?
정답: C
Which insulation color is allowed for a current-carrying root top dc conductor on a functionally grounded 6kw PV system?
정답: A
A module's Voc is 40V at STC. At -5°C with a coefficient of -0.33%/°C, what is the Voc?
정답: D
A module's Voc is 40V at STC. At -5°C with a coefficient of -0.33%/°C, what is the Voc?
정답: D
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?
3000Vdc which procedures should be followed to establish an electrically safe condition?
정답: B
A 10 kW PV system produces 8 kW AC under STC. After one year, output drops to 7.2 kW. What is the most likely maintenance issue?
정답: B