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Publication details

Publication CODE Title
IEC 61857-21:2009 (2009-05) ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 21: SPECIFIC REQUIREMENTS FOR GENERAL-PURPOSE MODELS - WIRE-WOUND APPLICATIONS
 
Price Excl. VAT Total number of pages, tables and drawings
85.00 € 32.
Description
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.
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
Available files
EN/FR version

Status
Status IEC PUBLICATION
Situation Currently active
Replaces  IEC 61857-21:2004
Origin
Committee TC 112
Evaluation and qualification of electrical insulating materials and systems
Responsible Monsieur DE LEEUW Thierry, Technical Officer
Diamant Building Bd Auguste Reyers, 80
1030  BRUXELLES
Phone: +32 2 706 85 72
E-mail: thierry.deleeuw@ceb-bec.be
Approval
BEC Approval 2009-05-13
Registration 127401
ICS-Code (International Standards Classification) 29.080.30
NBN Status New
IEC publication date 2009-05-13
IEC stability date 2022-12-31
IEC last modification date 2017-10-12