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  • IEC 61857-21:2009

    Current The latest, up-to-date edition.

    Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English - French, Spanish, Castilian

    Published date:  13-05-2009

    Publisher:  International Electrotechnical Committee

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    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee TC 112
    Development Note Supersedes IEC 61857-23 (10/2004) Stability Date: 2017. (11/2012)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    PD IEC/TS 62332-3:2016 Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components Hermetic motor-compressors
    BS EN 61857-31:2017 Electrical insulation systems. Procedures for thermal evaluation Applications with a designed life of 5 000 h or less
    IEC 62114:2001 Electrical Insulation Systems - Thermal classification
    IEC TS 62332-3:2016 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 3: Hermetic motor-compressors
    06/30146693 DC : DRAFT FEB 2006
    EN 62114:2001 Electrical insulation systems (EIS) - Thermal classification
    12/30273916 DC : 0 BS EN 61858-1 - ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED EIS - PART-1: WIRE-WOUND WINDING EIS
    08/30177151 DC : DRAFT JAN 2008 BS EN 61858 - ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS
    CEI EN 61857-31 : 1ED 2017 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 31: APPLICATIONS WITH A DESIGNED LIFE OF 5000 H OR LESS
    BS EN 61858-1:2014 Electrical insulation systems. Thermal evaluation of modifications to an established electrical insulation system (EIS) Wire-wound winding EIS
    IEC TR 61857-2:2015 Electrical insulation systems - Procedures for thermal evaluation - Part 2: Selection of the appropriate test method for evaluation and classification of electrical insulation systems
    PD IEC/TR 61857-2:2015 Electrical insulation systems. Procedures for thermal evaluation Selection of the appropriate test method for evaluation and classification of electrical insulation systems
    I.S. EN 61857-31:2017 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 31: APPLICATIONS WITH A DESIGNED LIFE OF 5000 H OR LESS
    I.S. EN 61858-1:2014 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED ELECTRICAL INSULATION SYSTEM (EIS) - PART 1: WIRE-WOUND WINDING EIS
    BS EN 62114:2001 Electrical insulation systems (EIS). Thermal classification
    IEC 61857-31:2017 Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life of 5 000 h or less
    IEC 61858-1:2014 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 1: Wire-wound winding EIS
    16/30333476 DC : 0 BS EN 61857-31 - ELECTRICAL INSULATION SYSTEMS-PROCEDURES FOR THERMAL EVALUATION - PART 31: APPLICATIONS WITH A DESIGNED LIFE LESS THAN 5000 HOURS
    EN 61858-1:2014 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 1: Wire-wound winding EIS
    EN 61857-31:2017 Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life of 5 000 h or less

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
    IEC 60505:2011 Evaluation and qualification of electrical insulation systems
    IEC 61857-1:2008 Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage
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