Statements (33)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:electrical_code_article | 
| gptkbp:appliesTo | electrical installations in hazardous locations | 
| gptkbp:basisFor | Articles 501-504 | 
| gptkbp:citation | insurance requirements OSHA regulations | 
| gptkbp:class | Class/Division system | 
| gptkbp:covers | hazardous (classified) locations | 
| gptkbp:defines | gptkb:Division_1 gptkb:Division_2 Class I locations Class II locations Class III locations | 
| gptkbp:firstPublished | 1947 | 
| gptkbp:location | combustible dusts flammable gases or vapors ignitable fibers or flyings | 
| gptkbp:partOf | gptkb:NFPA_70_(National_Electrical_Code) | 
| gptkbp:provides | protection techniques for hazardous locations requirements for equipment in hazardous locations wiring methods for hazardous locations | 
| gptkbp:publishedBy | gptkb:National_Fire_Protection_Association | 
| gptkbp:replacedBy | Zone system in some cases (Articles 505, 506) | 
| gptkbp:requires | approved equipment proper sealing and protection special wiring methods | 
| gptkbp:standardizedBy | gptkb:ANSI/NFPA_70 | 
| gptkbp:updated | every NEC revision cycle | 
| gptkbp:usedBy | contractors inspectors electrical engineers | 
| gptkbp:bfsParent | gptkb:IEC_60079 | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | NFPA 70 (NEC) Article 500 |