Deck 12: Maintaining and Troubleshooting a Pv System

Question 1

A maintenance ____________________ is a list of maintenance tasks and their suggested time interval.

Answer 1

program

Question 2

What is the first task when performing the initial system startup?

Answer 2

When performing the initial system startup, the array voltage should be checked first with a good quality multimeter.

Question 3

What can be used to clean PV modules?

Answer 3

Water and mild detergent can be used to clean PV modules.

Question 4

What should you record once it has been determined that the PV system is working properly, and why?

Question 5

A check needs to be performed of all junction boxes, conduit bodies, and disconnect switches to make sure they are ____________________ and suitable for outside installations.

Question 6

____________________ is a systematic investigation of possible causes for a system problem resulting in a determination of how best to fix the problem.

Question 7

What are the three most common PV system failures?

Question 8

Stand-alone PV systems will require less maintenance than grid-tie systems.

Question 9

The electrical inspector will make sure that the building codes adopted by the local government are being followed.

Question 10

____________________ maintenance should involve checking all mechanical and electrical connections, checking all source circuit currents and voltages, checking battery electrolyte if the batteries are not sealed, and checking the programming of charge controllers and/or inverters.

Question 11

The organization, office, or individual designated by the local government with legal powers to administer, interpret, and enforce building codes is called the _____________________.

Question 12

How often should you inspect the intake air duct and cooling fan of an inverter for accumulation of dirt and debris?

Question 13

When troubleshooting a PV array, if no problem is found at the array or inverter you'll need to check the building's electrical ____________________.

Question 14

The last item to check when performing the final check is signage.

Question 15

Commissioning is the initial start-up and operation of a PV system.

Question 16

How does the final systems check begin?

Question 17

When will representatives of the Authority Having Jurisdiction (AHJ) inspect the PV system?

Question 18

When troubleshooting an array, first ____________________ check the entire system for any obvious damage.

Question 19

A(n) ____________________ is used to check the specific gravity of the electrolyte in battery cells.

Question 20

Conductor insulation on PV systems should be rated for wet locations.