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New Reduced price! IEC 61857-21 Ed. 3.0 b:2009

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IEC 61857-21 Ed. 3.0 b:2009

Reference: M00000172

Condition: New product

IEC 61857-21 Ed. 3.0 b:2009 Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications

standard by International Electrotechnical Commission, 05/13/2009

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IEC 61857-21:2009 describes a general-purpose model (GPM) and a tall channel alternative model (GPM-TC) which can be used for the evaluation of wire-wound electrical insulation systems (EIS) where specific electrotechnical products are not available or required. The third edition cancels and replaces the second edition published in 2004, and constitutes editorial revisions to make this standard compatible with Parts 1 and 22.

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Edition: 3.0 Published: 05/13/2009 Number of Pages: 32 File Size: 1 file , 1000 KB