UL 913 BULLETINS-2003-b
I类I级,II级和III级(分级)危险场所用固有安全防爆装置及相关装置安全标准/注:ANSI/UL 913-2003标准的修订本*批准已作废

Standard for Safety for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, III, Division 1, Hazardous (Classified) Locations / Note: revision of ANSI/UL 913-2003 * Approved

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标准号

UL 913 BULLETINS-2003-b

发布日期

2003年

实施日期

废止日期

无

中国标准分类号

K35

国际标准分类号

29.260.20

发布单位

美国保险商实验所

适用范围

These requirements cover: Apparatus or parts of app. for install. & use in Cl I, II or III, Div 1 haz. (classified) loc. in accordance with the NEC, NFPA 70. Associated app. outside Cl I, II or III, Div 1 loc. whose design & constr. may influence the intrinsic safety of an elect. circuit within Cl 1, II or III, Div 1 loc. And are based on consideration of ignition in loc. class. as haz. loc. by the presence of flammable or combustible mat. under the foll. atmos. cond: a) Min. ambient temperature of ambient temperature of 50?C (186?F) b) oxygen concentration not greater than 21% by vol., & c) Nom. barometric pressure of 1 atmosphere.

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