50 BULLETIN-2014

UL Standard for Safety Enclosures for Electrical Equipment@ Non-Environmental Considerations (COMMENTS DUE: DECEMBER 9@ 2014)


 

 

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标准号
50 BULLETIN-2014
发布日期
2014年10月10日
实施日期
2017年11月30日
废止日期
中国标准分类号
/
国际标准分类号
/
发布单位
UL - UL
引用标准
64
适用范围
This standard applies to enclosures for electrical equipment intended to be installed and used in non-hazardous locations in accordance with the Canadian Electrical Code@ Part I@ CSA C22.1@ the provisions of the National Electrical Code@ NFPA 70@ and the provisions of Mexico's Electrical Installations@ NOM-001-SEDE@ as follows: a) Enclosures for indoor locations@ Types 1@ 2@ 5@ 12@ 12K@ and 13; and b) Enclosures for indoor or outdoor locations@ Types 3@ 3X@ 3R@ 3RX@ 3S@ 3SX@ 4@ 4X@ 6@ and 6P. This standard covers the non-environmental construction and performance requirements for enclosures to provide a degree of protection to personnel against incidental contact with the enclosed equipment. The additional environmental construction and performance requirements for enclosures are located in CSA C22.2 No. 94.2@ UL 50E@ and NMX-J-235/2-ANCE (See Annex B@ Ref. No. 15)@ which are intended to be used in conjunction with this standard. Where an individual product standard contains requirements that are at variance with those of this standard@ the requirements of the individual product standard take precedence. In the United States and Mexico@ cabinets and cutout boxes and junction and pull boxes are covered by Clauses 9 and 10 of this Standard. In Canada@ junction boxes@ cutout boxes@ and pull boxes are covered by CSA C22.2 No. 40 and are not covered by this standard. See Annex B@ Ref. No. 12 Outlet boxes having a volume of not more than 1640 cm3 (100 in3) are covered by CSA C22.2 No. 18.1@ NMX-J-023/1-ANCE@ and the UL 514 series (see Annex B@ Ref. No. 6 and 13) and are not covered by this standard. In Canada and the United States @ swimming pool type junction boxes are covered by CSA C22.2 No. 89 and UL 1241 (see Annex B@ Ref. No. 11) and are not covered by this standard.




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