Regulatory Compliance Flashcards
7 cards from real SE ENGR. practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Regulatory Compliance flashcards as text
NEC 690.11 requires DC arc-fault circuit protection for PV circuits on or in buildings operating at or above what voltage?
Answer: 80 V
NEC 690.11 requires listed DC arc-fault protection for PV system DC circuits of 80 V or greater on or penetrating a building.
Which UL standard has replaced UL 1703 as the safety standard for listing flat-plate PV modules?
Answer: UL 61730
UL 61730, harmonized with IEC 61730, superseded UL 1703 for PV module safety listing.
Which UL standard covers PV Hazard Control systems that can serve as an alternative way to meet rapid shutdown inside the array boundary?
Answer: UL 3741
UL 3741 evaluates PV hazard control equipment and systems for firefighter shock-hazard reduction.
Which UL standard addresses mounting systems, clamps, and bonding devices for PV racking?
Answer: UL 2703
UL 2703 covers mounting systems, mounting devices, clamping, and bonding devices for flat-plate PV modules.
Per NEC 690.8, the maximum PV source circuit current is calculated as module Isc multiplied by what factor?
Answer: 1.25
Maximum circuit current is the sum of parallel module Isc ratings times 125% for irradiance above STC.
Under OSHA construction standards (29 CFR 1926.501), fall protection is required for rooftop solar workers at heights of how many feet or more?
Answer: 6 ft
OSHA 1926.501 requires fall protection for construction workers on surfaces 6 ft or more above a lower level.
Which NEC article specifically addresses large-scale PV electric supply stations of 5 MW or more?
Answer: Article 691
NEC Article 691 covers large-scale PV electric power production facilities of at least 5 MWac.