PVIPの無料問題集（72題）、PVIP認定試験参考書

NABCEP PVIP 問題集

試験コード：PVIP

試験名称：PV Installation Professional (PVIP) Board Certification

最近更新時間：2024-11-16

問題と解答：全72問

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質問 1：
An installer troubleshooting a ground-mounted array finds It to be performing as expected most of the time, but a ground-fault error is indicated on hot days. The inverter is in a shaded location. Which of the following should theinstaller check for FIRST when troubleshooting this array?
A. Loose module connections
B. Intermittent ground connections
C. High voltage
D. Pinched module wiring
正解：D

質問 2：
With all other environmental parameters being the same, which would be the expected reduction in KM performance of a PV system after an irradiance drop from 810w/m2 to 740w/m2?
A. 9.5%
B. 10.2%
C. 7.4%
D. 8.6%
正解：D

質問 3：
A PV connection is being made at the center of a 300 ft. long 200 feeder. See the attack diagram. The feeder originates in the upper third of the 800A main service panel (800A main breaker) with a 200A breaker and terminates in a 200A main-lug-only subpanel. The rated output of the PV system inverter is 100A.

Which are the NIMUMUM actions required to achieve an NEC-compliant installation?
A. Install a 200A breaker at the PV source connection point on the portion on the portion of the feeder toward the subpanel and move the 200A breaker to the top of the main service panel, adjust to the 800A main breaker.
B. Install a 325A at the PV source connection point on the portion of the feeder toward the subpanel, increase the capacity of this portion of the feeder to 325A, add a 200A main breaker to the subpanel, and move the 200A breaker to bottom of the main service panel, away from the 800A main breaker.
C. Install a 200A breaker at the PV source connection point on the portion of the feeder toward the subpanel, maintain the capacity of the entire feeder, and move the 200A breaker to the bottom of the main service panel, away from the 800A main breaker.
D. Install a 325A breaker at the PV source connection point on the portion of the feeder toward the subpanel. Increase thecapacityof the feeder from the main panel board to 325A breaker to the bottom of the main service panel, away from the 800 main breaker.
正解：D

質問 4：
Which load path connections need to be analyzed when determining live and dead loads on a PV array system installed directly to a metal seam roof?
A. Module to rail to metal seam roof, metal seam roof sheathing/rather system.
B. Rail to metal seam roof, metal seam roof to top plate, top plate to wall system
C. Module to rail to metal seam roof, metal seam roof to top plate system
D. Module to rail, rail to roof sheathing, roof sheathing to wall, wall to base plate/foundation system
正解：A

質問 5：
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?
A. Verify that disconnecting device blades are closed and test conductors using an adequately rated detector.
B. Apply lockout/tagout devices and install a listed isolation transformer.
C. Mount inverters on nonconductive supports and temporarily ground one dc circuit conductor.
D. Determine possible sources electrical supply an avoid exposure to energized conductors or parts.
正解：D

質問 6：
Most electric service providers require interactive PV equipment to comply with which for interconnection to their distribution grid?
A. UL 2703
B. UL 16998
C. UL 60947-1
D. UL 1741
正解：C

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NABCEP PV Installation Professional (PVIP) Board Certification 認定 PVIP 試験問題:

1. A7KW/ 14 KWh multimode systemhas been installed at a residence, ac-couple with the customer's existing
6.7kwh ac PV system. The system providers uninterrupted power to a protect loads subpanel, which is connected to a refrigerator, Microwave, 1.0 ton are conditioner, three lightning circuit, and the 6.7kwac PV system. One month later, the homeowner moves additional circuits to the protected loads subpanel, substantially increasing the loads. Why would this cause, the backfed interconnection breaker in the main service panel to trip?

A) The load the protected loads subpanel exceeds the PV system ac rating by 25%.
B) The toad exceeds the capacity of the interconnection breaker.
C) The main service panel is no longer compliant with NCC 705.12.
D) The total load exceeds the system's energy storage capacity of 14kWh.

2. Which of the following tests measures axial uplift whenperforming load testing of driven-pile foundation members

A) Resistance to twisting
B) Resistance to downward (Sinking force
C) Resistance to withdraw (pull-out) force
D) Resistance to horizontal movement

3. How should stratification be eliminated in a set of large, stationary, stationary flooded lead-acid batteries?

A) Add 50% diluted sulfuric acid.
B) Rotate the battery positions
C) Enable equalization.
D) Discharge to 80 depth of discharge.

4. A technician has been called to a scale due to a low-performing array. The technician will perform tests in the
24-source circuit combiner box. After putting on the correct PPE and turning off and performing lock.tagout of the inverted and combiner disconnect. Which is the next step to safely begin electrical testing in the combiner box?

A) Test for voltage on the positive out
B) Open all fuse holders in the combiner box.
C) Test for current on each source circuit coming into the combiner box.
D) Remove any surge suppression devices from the circuits.

5. A customer has a 200A service with a 200A rated panel and 200A main breaker located on the street side of the house. There is a 100A breaker located at the opposite end of busbar feeding a 125A subpanel in the backyard. The customer would like to place the inverter the backyard and use the 125 subpanel. Which MAXIMUM inverter(s) output circuit current could be installed?

A) 32A
B) 30A
C) 42A
D) 40A

質問と回答：

質問 # 1
正解： B

質問 # 2
正解： C

質問 # 3
正解： C

質問 # 4
正解： B

質問 # 5
正解： D