ARTICLE 505. ZONE 0, 1, AND 2 LOCATIONS


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ARTICLE 505. ZONE 0, 1, AND 2 LOCATIONS
ARTICLE 505. ZONE 0, 1, AND 2 LOCATIONSThis Code article is intended as an alternate method for classifying Class I hazardous locations. Under the traditional NEC rules, hazardous (classified) locations are divided into divisions depending on how frequent the hazardous atmosphere or dusts are expected to be present. If the hazardous material is merely in secure storage, that storage area gets a less severe classification than an area where people routinely work with it. Under the traditional rules the former location is Division 2 and the latter is Division 1. This article is now designed as a stand-alone article. All requirements regarding seals and other provisions that at one time were incorporated by reference from Art. 501 have been duplica…
Citation
Frederic P. Hartwell; Joseph F. McPartland; Brian J. McPartland: McGraw-Hill's National Electrical Code 2017 Handbook, 29th Edition. ARTICLE 505. ZONE 0, 1, AND 2 LOCATIONS, Chapter (McGraw-Hill Professional, 2017), AccessEngineering Export