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Insulation resistance testing is being performed on the conductors of a 3-year-old PV system.

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Insulation resistance testing is being performed on the conductors of a 3-year-old PV system. With a constant high test voltage being applied to a dc conductor, the test results in a high resistance reading. Which does this finding indicate?

A.

Wiring insulation has degraded and is resulting in leakage.

B.

Soling of modules has reduced the efficiency of the system.

C.

Typical module degradation has lowered the output of the system’s strings.

D.

The conductor insulation is functioning as intended.

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