Api Rp 500 Classification Of Locations For Electrical Installations At Petroleum Facilities Pdf10/26/2019
Use plan drawings with a few cross-hatched patterns to document the area classifications. Typically, most of the platform requires Class I Division 2. Consider a few elevations or sections where the classification is Division 1 around vents etc. Also reflect the group requirements where required to address hydrogen, olefins or alcohols that require group B etc. See 29 CFR 1910.119 (d)(3)(i)(C)(d)(3)(i)(C) for Electrical classifications. Also see API RP 14J 6.2.5 Layout Information.RE: API 500/505 Classification (Aerospace).
NOTE Recommendations for determining the degree and extent of classified locations Class I, Division 1, and Division 2 are addressed in API 500, Recommended Practice for Classification of Electrical Installations at Petroleum Facilities Classified as Class I, Division 1, and Division 2.
5—Electrical submersible pumping well in a nonenclosed, adequately ventilated area with an inadequately ventilated cellar.Refer to API RP 500 and the NEC for further details regarding hazardous-area classification.International Electrotechnical Commission (IEC) standardsWhereas the classification based on the NEC and API standards is used in the U.S.
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