최신 PVIP 무료덤프 - NABCEP PV Installation Professional (PVIP) Board Certification
Which circuits are on the utility side of a service point?
정답: C
A module's power is 340W at STC. At 700 W/m² and 40°C with a coefficient of -0.38%/°C, what is the output?
정답: A
An installer has decided to use 31 in. long. 3.1/2 in diameter conical ground screws as the footings for a 3.840 W solar electric system. Access to he is too difficult to pour concrete footings. The soll is classified as sandy loam. The design wind speed is 90 mph with an uplift force of 32 ibs/ft2. What is the MINIMUM number of screw required to resist uplift loads?
정답: B
Which of the following tests measures axial uplift when performing load testing of driven-pile foundation members
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 system was installed in July 2017 under the 2017 NEC. The system has a string inverter located inside a garage on a wall 10 ft, from the outside wall and 1oft, from the ac load center at the point of utility connection. The PV system has a PV array on the roof. Which of the following represents the PV rapid shutdown system requirement for the controlled PV system conductors associated with this PV array?
정답: B
A 15 kW system has a total derate factor of 0.87. After 3 years at 1% degradation/year, what is the output?
정답: A
A PV system's annual energy production is 15,000 kWh. After maintenance, production increases by 5%.
What is the new annual output?
What is the new annual output?
정답: A
A metal condult containing an array circuit with Vmo of 400Vdc is connected to a metal enclosure at the location where the concentric knockouts have been punched by the manufacturer. Which method of attachment should be used?
정답: C
An 8 AWG bare copper equipment ground conductor (EGC) is wire tied to the module mounting structure of a commercial rooftop solar array. After a few years of operation, some spots on the EGCbegin to turn a green color and appear to be corroding more significantly that other places. What would the MOST likely cause of the problem?
정답: B