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  • IEC 60287-1-3:2002

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Electric cables - Calculation of the current rating - Part 1-3: Current rating equations (100 % load factor) and calculation of losses - Current sharing between parallel single-core cables and calculation of circulating current losses

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

    Superseded date:  22-05-2023

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

    Published date:  21-05-2002

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Symbols
    4 Description of method
       4.1 General
       4.2 Outline of method
       4.3 Matrix solution
    Annex A (informative) Example calculations
    Annex B (informative) Example of the computation of
            the coefficient alpha for hollow core conductors
    Bibliography

    Abstract - (Show below) - (Hide below)

    Provides a method for calculating the phase currents and circulating current losses in single-core cables arranged in parallel. The method described in this standard can be used for any number of cables per phase in parallel in any physical layout. The phase currents can be calculated for any arrangement of sheath bonding. For the calculation of sheath losses, it is assumed that the sheaths are bonded at both ends. A method for calculating sheath eddy current losses in two circuits in flat formation is given in IEC 60287-1-2.

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

    Committee TC 20
    Development Note Stability Date: 2017. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By

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

    IEEE 525-2007 IEEE Guide for the Design and Installation of Cable Systems in Substations
    HD 60364-4-43:2010 Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent
    IEC 60364-4-43:2008 Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent
    IEEE 848-2015 IEEE Standard Procedure for the Determination of the Ampacity Derating Factor for Fire-Protected Cable Systems
    I.S. HD 60364-4-43:2010 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-43: PROTECTION FOR SAFETY - PROTECTION AGAINST OVERCURRENT
    UNE-HD 60364-4-43:2013 Low-voltage electrical installations -- Part 4-43: Protection for safety - Protection against overcurrent
    IEEE 575-2014 IEEE Guide for Bonding Shields and Sheaths of Single-Conductor Power Cables Rated 5 kV through 500 kV

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

    IEC 60287-1-2:1993 Electric cables - Calculation of the current rating - Part 1: Current rating equations (100 % load factor) and calculations of losses - Section 2: Sheath eddy current loss factors for two circuits in flat formation
    IEC 60287-2-1:2015 RLV Electric cables - Calculation of the current rating - Part 2-1: Thermal resistance - Calculation of thermal resistance
    IEC 60287-1-1:2006+AMD1:2014 CSV Electric cables - Calculation of the current rating - Part 1-1:Current rating equations (100 % load factor) and calculation of losses - General
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