ARTICLE 502. CLASS II LOCATIONS


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ARTICLE 502. CLASS II LOCATIONS
ARTICLE 502. CLASS II LOCATIONS502.1. Scope. Referring to 500.5(C), the hazards in Class II locations are due to the presence of combustible dust. These locations are subdivided into three groups, as follows, and not all equipment is suitable for all groups: Group E, atmospheres containing metal dust Group F, atmospheres containing carbon black, coal dust, or coke dust Group G, atmospheres containing grain dust, such as in grain elevators Any one of four hazards, or a combination of two or more, may exist in a Class II location: (1) …
Citation
Frederic P. Hartwell; Joseph F. McPartland; Brian J. McPartland: McGraw-Hill's National Electrical Code 2017 Handbook, 29th Edition. ARTICLE 502. CLASS II LOCATIONS, Chapter (McGraw-Hill Professional, 2017), AccessEngineering Export