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Article 310 - Conductors for General Wiring

Chapter 3 - Wiring Methods and MaterialsConductors

Conductor ampacity, insulation types, temperature ratings, and adjustment/correction references.

Search keywords: ampacity, conductor, THHN, THWN, temperature, 310.16, derating

Reference rule: This card is a field index/bookmark, not the full NEC article text. Verify exact language, exceptions, tables, and local amendments against your licensed 2020 NEC and the AHJ.

Local GIES Note / Field Interpretation

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