• IEC TR 60890:2014

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    A method of temperature-rise verification of low-voltage switchgear and controlgear assemblies by calculation

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

    Superseded date:  29-09-2022

    Language(s):  English - French

    Published date:  07-05-2014

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Conditions for application
    5 Calculation
    6 Evaluation of the design
    Annex A (informative) - Examples for the calculation
            of the temperature-rise of air inside the
            enclosures
    Annex B (informative) - Operating current and power
            losses of conductors
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC TR 60890:2014 specifies a method of temperature-rise verification of low-voltage switchgear and controlgear ASSEMBLIES by calculation. The method is applicable to enclosed ASSEMBLIES or partitioned sections of ASSEMBLIES without forced ventilation. It is not applicable where temperature rise verification to the relevant product standard of the IEC 61439 series has been established. This second edition cancels and replaces the first edition published in 1987 and its Amendment 1:1995. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the last edition:
    - alignment with IEC 61439-1:2011;
    - revision of Annex B;
    - general editorial review.

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

    Committee TC 121/SC 121B
    Development Note Stability date: 2019. (05/2014)
    Document Type Technical Report
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By
    Supersedes

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

    BS IEC 60943 : 1998 GUIDANCE CONCERNING THE PERMISSIBLE TEMPERATURE RISE FOR PARTS OF ELECTRICAL EQUIPMENT, IN PARTICULAR FOR TERMINALS
    09/30194273 DC : 0 BS EN 62208 - EMPTY ENCLOSURES FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - GENERAL REQUIREMENTS
    BS PD IEC TR 62655 : 2013 TUTORIAL AND APPLICATION GUIDE FOR HIGH-VOLTAGE FUSES
    CEI 32-10 : 2001 GUIDANCE CONCERNING THE PERMISSIBLE TEMPERATURE RISE FOR PARTS OF ELECTRICAL EQUIPMENT, IN PARTICULAR FOR TERMINALS
    BS PD IEC TR 60943 : 2009 GUIDANCE CONCERNING THE PERMISSIBLE TEMPERATURE RISE FOR PARTS OF ELECTRICAL EQUIPMENT, IN PARTICULAR FOR TERMINALS
    BS EN 60282-1 : 2009 HIGH-VOLTAGE FUSES - PART 1: CURRENT-LIMITING FUSES
    BS EN 62208:2011 Empty enclosures for low-voltage switchgear and controlgear assemblies. General requirements
    CLC/TR 50479 : 2007 ELECTRICAL INSTALLATION GUIDE - SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - WIRING SYSTEMS - LIMITATION OF TEMPERATURE RISE OF CONNECTING INTERFACES
    NBR IEC 60439-1 : 2003 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: TYPE-TESTED AND PARTIALLY TYPE-TESTED ASSEMBLIES
    PD IEC/TR 62271-307:2015 (published 2015-09) High-voltage switchgear and controlgear Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
    BS PD CLC/TR 50479 : 2007 ELECTRICAL INSTALLATION GUIDE - SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - WIRING SYSTEMS - LIMITATION OF TEMPERATURE RISE OF CONNECTING INTERFACES
    UNE-EN 60282-1:2011 High-voltage fuses -- Part 1: Current-limiting fuses
    EN 61439-1:2011 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES (IEC 61439-1:2011)
    IEC TR 61200-52:2013 Electrical installation guide - Part 52: Selection and erection of electrical equipment - Wiring systems
    UNE-EN 62208:2012 Empty enclosures for low-voltage switchgear and controlgear assemblies - General requirements
    CEI EN 62208 : 2012 EMPTY ENCLOSURES FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - GENERAL REQUIREMENTS
    S.R. CLC/TR 50479:2007 ELECTRICAL INSTALLATION GUIDE - SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - WIRING SYSTEMS - LIMITATION OF TEMPERATURE RISE OF CONNECTING INTERFACES
    CEI EN 60282-1 : 2011 HIGH-VOLTAGE FUSES - PART 1: CURRENT-LIMITING FUSES
    I.S. EN 61439-1:2011 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES (IEC 61439-1:2011)
    IEC TR 60943:1998+AMD1:2008 CSV Guidance concerning the permissible temperature rise for parts of electrical equipment, in particular for terminals
    I.S. EN 62208:2011 EMPTY ENCLOSURES FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - GENERAL REQUIREMENTS (IEC 62208:2011)
    I.S. EN 60439-1:2000 LOW VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1 - TYPE TESTED AND PARTIALLY TYPE TESTED ASSEMBLIES
    IEC TR 62655:2013 Tutorial and application guide for high-voltage fuses
    IEC 60204-1:2016 Safety of machinery - Electrical equipment of machines - Part 1: General requirements
    I.S. EN 60282-1:2009 HIGH-VOLTAGE FUSES - PART 1: CURRENT-LIMITING FUSES
    UNE-EN 61439-1:2012 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
    04/30123347 DC : DRAFT OCT 2004 IEC 61439-1 - LOW VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES
    IEC 60439-1:1999+AMD1:2004 CSV Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies
    BS 5486-1(1990) : 1990 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - REQUIREMENTS FOR TYPE-TESTED AND PARTIALLY TYPE-TESTED ASSEMBLIES
    BS EN 61439-1:2011 Low-voltage switchgear and controlgear assemblies General rules
    IEC 61439-1:2011 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
    IEC 60282-1:2009+AMD1:2014 CSV High-voltage fuses - Part 1: Current-limiting fuses
    14/30238347 DC : 0 BS EN 60204-1 ED 6.0 - SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 1: GENERAL REQUIREMENTS
    09/30204029 DC : 0 BS EN 61439-1 - LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES
    IEC TR 62271-307:2015 High-voltage switchgear and controlgear - Part 307: Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
    BS EN 60439-1 : 1999 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: TYPE-TESTED AND PARTIALLY TYPE-TESTED ASSEMBLIES
    IEC 61439-1:2020 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
    16/30301661 DC : 0 BS EN 61439-1 ED3.0 - LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES
    IEC 62208:2011 Empty enclosures for low-voltage switchgear and controlgear assemblies - General requirements
    EN 60282-1:2009/A1:2014 HIGH-VOLTAGE FUSES - PART 1: CURRENT-LIMITING FUSES (IEC 60282-1:2009)
    EN 62208:2011 EMPTY ENCLOSURES FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - GENERAL REQUIREMENTS (IEC 62208:2011)
    DIN VDE 0660-500 : 1991 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - REQUIREMENTS FOR TYPE-TESTED AND PARTIALLY TYPE-TESTED ASSEMBLIES
    EN 60439-1:1999/A1:2004 LOW VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1 - TYPE TESTED AND PARTIALLY TYPE TESTED ASSEMBLIES

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

    IEC 60228:2004 Conductors of insulated cables
    IEC 61439-1:2011 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
    IEC 60364-5-52:2009 Low-voltage electrical installations - Part 5-52: Selection and erection of electrical equipment - Wiring systems
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