When installing a rapid shutdown system for a residential PV installation, at what distance from the array must voltage be reduced according to NEC 2017?

Practise this Solar PV Professional Exam 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

AWithin 10 feet of the array
BWithin 3 feet of the array
CWithin 5 feet of the array
DWithin 1 foot of the array

✓ Correct answer: D. Within 1 foot of the array NEC 2017 requires that PV system conductors more than 1 foot from the array must be reduced to 30V or less within 30 seconds during rapid shutdown.

.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 Solar PV Professional Exam PDF, watch the YouTube walkthrough, or unlock all 10 web questions with timed mock exams.

Free PDF Video walkthrough

← Previous Next → 🎲 Random question ↩ Back to all questions

Keep practising

When installing a rapid shutdown system for a residential PV installation, at what distance from the array must voltage be reduced according to NEC 2017?

Related questions

Free practice here. Timed mocks when you are ready.