Understanding NEC Article 505

Understanding NEC Article 505: Zone 0, 1, and 2 Locations NEC Article 505 introduces the zone classification system for hazardous locations as an alternative to the division system described in Article 500. Zones focus on the presence and likelihood of flammable gases, vapors, or liquids in specific areas, offering a more granular approach to safety […]

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Understanding NEC Article 501

Understanding NEC Article 501: Class I Locations Electrical safety is critical in environments with flammable gases or vapors that can create explosive atmospheres. NEC Article 501 addresses the requirements for electrical and electronic equipment in Class I locations. These are places where ignitable gases, flammable liquids, or vapors may exist under normal or abnormal conditions. […]

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