When conducting insulation resistance testing on a PV array, what is the minimum acceptable value according to IEC 62446-1?

Practise this PVCMS Test Prep question free, then download the PDF, watch the video walkthrough, or unlock timed mock exams for the full web bank.

Download PDF Watch video

Multiple choice — select the best answer

A10 kΩ per module
B100 kΩ regardless of system size
C0.5 MΩ per string
D1 MΩ per 1000V of system voltage

✓ Correct answer: D. 1 MΩ per 1000V of system voltage According to IEC 62446-1, the minimum insulation resistance value is 1 MΩ per 1000V of system voltage, with a minimum of 1 MΩ regardless of system size.

.q-expl{display:block!important}.q-opt[data-idx="3"]{border-color:#16a34a;background:#f0fdf4}.q-opt[data-idx="3"] .oltr{background:#16a34a;color:#fff}.q-opt{cursor:default!important;pointer-events:none}

Keep practising. Use the free PVCMS Test Prep PDF, watch the YouTube walkthrough, or unlock all 10 web questions with timed mock exams.

Free PDF Video walkthrough

Next → 🎲 Random question ↩ Back to all questions

Keep practising

When conducting insulation resistance testing on a PV array, what is the minimum acceptable value according to IEC 62446-1?

Related questions

Free practice here. Timed mocks when you are ready.