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IEC

PDF Standards IEC 61181 Ed. 2.1 b:2012

Mineral oil-filled electrical equipment – Application of dissolved gas analysis (DGA) to factory tests on electrical equipment CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 03/26/2012

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IEC

PDF Standards IEC 60721-3-3 Ed. 2.2 b:2002

Classification of environmental conditions – Part 3-3: Classification of groups of environmental parameters and their severities – Stationary use at weatherprotected locations CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 10/22/2002

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