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IEC

PDF Standards IEC 61950 Ed. 2.0 b:2007

Cable management systems – Specifications for conduit fittings and accessories for cable installations for extra heavy duty electrical steel conduit
standard by International Electrotechnical Commission, 01/30/2007

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IEC

PDF Standards IEC 62133-1 Ed. 1.0 b:2017

Secondary cells and batteries containing alkaline or other non-acid electrolytes – Safety requirements for portable sealed secondary cells, and for batteries made from them, for use in portable applications – Part 1: Nickel systems
standard by International Electrotechnical Commission, 02/07/2017

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