GIES OS
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Article 501 - Class I Locations

Chapter 5 - Special OccupanciesHazardous Locations

Flammable gas/vapor Class I wiring methods and equipment.

Search keywords: Class I, explosionproof, sealoff, gas vapor

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.
Article 500 Article 504 Article 505Back to FilterFull Index

Local GIES Note / Field Interpretation

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