• IEC 60865-1:2011

    Current The latest, up-to-date edition.

    Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods

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

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

    Published date:  24-10-2011

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    1 Scope
    2 Normative references
    3 Terms, definitions, symbols and units
    4 General
    5 Rigid conductor arrangements
    6 Flexible conductor arrangements
    7 The thermal effect on bare conductors
    Annex A (normative) - Equations for calculation
            of diagrams
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 60865-1:2011 is applicable to the mechanical and thermal effects of short-circuit currents. It contains procedures for the calculation of: the electromagnetic effect on rigid conductors and flexible conductors, the thermal effect on bare conductors. For cables and insulated conductors, reference is made, for example, to IEC 60949 and IEC 60986. For the electromagnetic and thermal effects in d.c. auxiliary installations of power plants and substations reference is made to IEC 61660-2. Only a.c. systems are dealt with in this standard. This third edition cancels and replaces the second edition published in 1993 and constitutes a technical revision. The main changes with respect to the previous edition are:
    - The determinations for automatic reclosure together with rigid conductors have been revised.
    - The influence of mid-span droppers to the span has been included. For vertical cable-connection the displacement and the tensile force onto the lower fixing point may now be calculated. Additional recommendations for foundation loads due to tensile forces have been added. The subclause for determination of the thermal equivalent short-circuits current has been deleted (it is now part of IEC 60909-0). The regulations for thermal effects of electrical equipment have been deleted. The standard has been reorganized and some of the symbols have been changed to follow the conceptual characteristic of international standards.

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

    Committee TC 73
    Development Note Supersedes IEC 60865 (03/2001) Stability Date: 2017. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

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

    PREN 50341-1 : DRAFT 2012 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
    BS IEC 60092-302 : 1997 ELECTRICAL INSTALLATION IN SHIPS - LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES
    12/30260570 DC : 0 BS EN 50341-1 - OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
    02/206403 DC : DRAFT MAY 2002 IEC 62231. ED.1.0 - COMPOSITE STATION POST INSULATORS FOR SUBSTATIONS WITH A.C. VOLTAGES GREATER THAN 1000 V UPTO 245 KV - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
    14/30304423 DC : 0 BS EN 62271-102 ED 2 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 102: ALTERNATING CURRENT DISCONNECTORS AND EARTHING SWITCHES
    BS PD IEC TR 60865-2 : 2015 SHORT-CIRCUIT CURRENTS - CALCULATION OF EFFECTS - PART 2: EXAMPLES OF CALCULATION
    BS EN 61660-2 : 1997 SHORT-CIRCUIT CURRENTS IN DC AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - PART 2: CALCULATION OF EFFECTS
    I.S. EN 61660-2:1999 SHORT-CIRCUIT CURRENTS IN D.C. AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - CALCULATION OF EFFECTS
    08/30191891 DC : DRAFT OCT 2008 BS EN 61936-1 - POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    BS EN 62271-102 : 2002 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 102: ALTERNATING CURRENT DISCONNECTORS AND EARTHING SWITCHES
    BS EN 50341-2-4 : 2016 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 2-4: NATIONAL NORMATIVE ASPECTS (NNA) FOR GERMANY (BASED ON EN 50341-1:2012)
    BS 7767(1994) : 1994 METHOD FOR ASSESSING THE SHORT-CIRCUIT WITHSTAND STRENGTH OF PARTIALLY TYPE-TESTED ASSEMBLIES (PTTA)
    I.S. EN 50341-2-4:2016 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 2-4: NATIONAL NORMATIVE ASPECTS (NNA) FOR GERMANY (BASED ON EN 50341-1:2012)
    BS EN 61230 : 2008 LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    CEI EN 62155 : 2004 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    NF EN 62155 : 2003 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    IEC 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
    BS PD IEC TR 60909-1 : 2002 SHORT-CIRCUIT CURRENTS IN THREE-PHASE A.C. SYSTEMS - PART 1: FACTORS FOR THE CALCULATION OF SHORT-CIRCUIT CURRENTS ACCORDING TO IEC 60909-0
    BS EN 62155 : 2003 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    NBR IEC 60439-1 : 2003 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: TYPE-TESTED AND PARTIALLY TYPE-TESTED ASSEMBLIES
    07/30170224 DC : DRAFT AUG 2007 BS EN 61230 - LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    CEI 18-48 : 2000 ELECTRICAL INSTALLATIONS IN SHIPS - PART 302: LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES
    I.S. EN 50628:2016 ERECTION OF ELECTRICAL INSTALLATIONS IN UNDERGROUND MINES
    CSA C62155:2006 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    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
    I.S. EN 62271-102:2005 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 102: ALTERNATING CURRENT DISCONNECTORS AND EARTHING SWITCHES (IEC 62271-102:2001 (EQV))
    CSA C62155 : 2006 : R2011 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    I.S. EN 62477-1:2012 SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL
    12/30270636 DC : 0 BS EN 60909-0 - SHORT-CIRCUIT CURRENTS IN THREE-PHASE A.C. SYSTEMS - PART 0: CALCULATION OF CURRENTS
    CSA C22.3 No. 61936-1 : 2008 : R2015 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    BS EN 60909-0:2016 SHORT-CIRCUIT CURRENTS IN THREE-PHASE A.C. SYSTEMS - PART 0: CALCULATION OF CURRENTS
    CSA C62155 : 2006 : R2015 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    EN 61439-1:2011 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES (IEC 61439-1:2011)
    CSA C22.3 No. 61936-1 : 2008 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    BS EN 50341-1 : 2012 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
    NBR 15829 : 2017 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    BS EN 60204-11 : 2001 SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 11: REQUIREMENTS FOR HV EQUIPMENT FOR VOLTAGES ABOVE 1000 V A.C. OR 1500 V D.C. AND NOT EXCEEDING 36 KV
    EN 50341-2-4 : 2016 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 2-4: NATIONAL NORMATIVE ASPECTS (NNA) FOR GERMANY (BASED ON EN 50341-1:2012)
    BS EN 61264 : 1999 CERAMIC PRESSURIZED HOLLOW INSULATORS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
    I.S. EN 50341-1:2012 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
    CEI EN 50341-1 : 2013 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
    VDE 0103-10 : 1998 COR 1 2004 SHORT-CIRCUIT CURRENTS - SHORT-CIRCUIT CURRENTS IN D.C. AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - PART 2: CALCULATION OF EFFECTS
    NBR IEC 62271-102 : 2006 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 102: ALTERNATING CURRENT DISCONNECTORS AND EARTHING SWITCHES
    VDE 0103 SUPP 1 : 1996
    CEI EN 61660-2 : 1999 SHORT-CIRCUIT CURRENTS IN D.C. AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - PART 2: CALCULATION OF EFFECTS
    EN 50341-1:2012 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
    EN 61936-1 : 2010 AMD 1 2014 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES (IEC 61936-1:2010/A1:2014)
    I.S. EN 61936-1:2010 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    I.S. EN 60519-1:2015 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
    I.S. EN 61439-1:2011 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES (IEC 61439-1:2011)
    I.S. EN 61230:2008 LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    I.S. EN 60909-0:2016 SHORT-CIRCUIT CURRENTS IN THREE-PHASE A.C. SYSTEMS - PART 0: CALCULATION OF CURRENTS
    I.S. EN 62155:2003 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    IEC 62155:2003 Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1 000 V
    IEC 60204-11:2000 Safety of machinery - Electrical equipment of machines - Part 11: Requirements for HV equipment for voltages above 1 000 V a.c. or 1 500 V d.c. and not exceeding 36 kV
    I.S. EN 60204-11:2000 SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES PART 11: REQUIREMENTS FOR HV EQUIPMENT FOR VOLTAGES ABOVE 1000 V A.C. OR 1500 V D.C. AND NOT EXCEEDING 36 KV
    IEC 61936-1:2010+AMD1:2014 CSV Power installations exceeding 1 kV a.c. - Part 1: Common rules
    IEC TR 60909-1:2002 Short-circuit currents in three-phase a.c. systems - Part 1: Factors for the calculation of short-circuit currents according to IEC 60909-0
    EN 62477-1:2012/A1:2017 SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL (IEC 62477-1:2012/A1:2016)
    BS EN 60519-1:2015 Safety in installations for electroheating and electromagnetic processing General requirements
    IEC 61230:2008 Live working - Portable equipment for earthing or earthing and short-circuiting
    UNE-EN 61439-1:2012 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
    IEC 61264:1998 Ceramic pressurized hollow insulators for high-voltage switchgear and controlgear
    BS EN 50628 : 2016 ERECTION OF ELECTRICAL INSTALLATIONS IN UNDERGROUND MINES
    IEC 60519-1:2015 Safety in installations for electroheating and electromagnetic processing - Part 1: General requirements
    IEC TR 60865-2:2015 Short-circuit currents - Calculation of effects - Part 2: Examples of calculation
    IEC 60439-1:1999+AMD1:2004 CSV Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies
    BS EN 62477-1 : 2012 SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL (IEC 62477-1:2012)
    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 62477-1:2012+AMD1:2016 CSV Safety requirements for power electronic converter systems and equipment - Part 1: General
    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
    IEC 61439-1:2020 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
    BS EN 61936-1 : 2010 POWER INSTALLATIONS EXCEEDING 1 KV A.C - PART 1: COMMON RULES
    10/30230568 DC : 0 BS EN 61892-3 - MOBILE AND FIXED OFFSHORE UNITS - ELECTRICAL INSTALLATIONS - PART 3: EQUIPMENT
    UNE-EN 61936-1:2012 Power installations exceeding 1 kV a.c. -- Part 1: Common rules
    16/30301661 DC : 0 BS EN 61439-1 ED3.0 - LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES
    IEC 61660-2:1997 Short-circuit currents in d.c. auxiliary installations in power plants and substations - Part 2: Calculation of effects
    CEI EN 60519-1 : 2016 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
    EN 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
    EN 62155 : 2003 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    EN 60204-11:2000/corrigendum:2010 SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 11: REQUIREMENTS FOR HV EQUIPMENT FOR VOLTAGES ABOVE 1000 V A.C. OR 1500 V D.C. AND NOT EXCEEDING 36 KV
    EN 60519-1:2015 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS (IEC 60519-1:2015)
    EN 61230:2008 LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    EN 62271-102:2002/AC:2014 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 102: ALTERNATING CURRENT DISCONNECTORS AND EARTHING SWITCHES (IEC 62271-102:2001/A2:2013)
    EN 50628:2016 ERECTION OF ELECTRICAL INSTALLATIONS IN UNDERGROUND MINES
    EN 61264:1998/corrigendum:2000 CERAMIC PRESSURIZED HOLLOW INSULATORS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
    EN 61660-2 : 1997 SHORT-CIRCUIT CURRENTS IN D.C. AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - CALCULATION OF EFFECTS

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

    IEC 61936-1:2010+AMD1:2014 CSV Power installations exceeding 1 kV a.c. - Part 1: Common rules
    IEC 60986:2000+AMD1:2008 CSV Short-circuit temperature limits of electric cables with rated voltages from 6 kV (Um = 7,2 kV) up to 30 kV (Um = 36 kV)
    IEC 61660-2:1997 Short-circuit currents in d.c. auxiliary installations in power plants and substations - Part 2: Calculation of effects
    IEC 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
    IEC 60949:1988 Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects
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