What is the primary purpose of a continuity test performed on equipment grounding conductors (EGC) before commissioning?

What is the primary purpose of a continuity

Multiple choice — select the best answer

ATo measure the open-circuit voltage of each string
BTo verify the insulation resistance of PV conductors
CTo confirm the inverter firmware version is current
DTo verify a low-resistance fault-current path exists from all metallic parts to ground

✓ Correct answer: D. To verify a low-resistance fault-current path exists from all metallic parts to ground A continuity test on EGCs confirms that a low-impedance path exists for fault current to travel to ground, allowing overcurrent protection to operate quickly and safely in the event of a ground fault.

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Topic: Commissioning & O&M

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What is the primary purpose of a continuity test performed on equipment grounding conductors (EGC) before commissioning?

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