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During a PV system inspection, an installer notices that the rapid shutdown system fails to...

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During a PV system inspection, an installer notices that the rapid shutdown system fails to de-energize the array within 30 seconds of initiation. What is the most likely cause based on NEC 690.12 requirements?

A.

The rapid shutdown switch is installed more than 10 feet from the array

B.

The system lacks a compatible rapid shutdown device

C.

The inverter is not listed for rapid shutdown compliance

D.

The array conductors exceed the maximum allowable voltage

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