Defined term
Photovoltaic source circuit
NFPA's 2018 revision defines a PV source circuit as DC conductors between modules and from modules to DC combiners, electronic power converters, or a DC PV system disconnecting means.
technology · Concept code GS-CONCEPT-109 · Last verified August 28, 2026
Evidence through 2018-01-17T18:15:26Z · 0 sources have no source-event date
Content modified 2026-08-28
Definition and decision context
Definition
NFPA's 2018 revision defines a PV source circuit as DC conductors between modules and from modules to DC combiners, electronic power converters, or a DC PV system disconnecting means.
Verified August 28, 2026
Why it matters
NFPA says its PV source-circuit definition was refined to avoid enforcement confusion in Article 690.
Verified August 28, 2026
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Learning navigation
Primary topic: Equipment
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Primary sources
- National Fire Protection Association: First Revision No. 8555 — Definition: Photovoltaic Source Circuit
Revision First Revision No. 8555-NFPA 70-2018 · Source event as of January 17, 2018 · Ontology accessed August 28, 2026 · Ontology verified August 28, 2026