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  • BS 5622-2:1979

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Guide for insulation co-ordination Application guide

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-04-1997

    Language(s):  English

    Published date:  31-01-1979

    Publisher:  British Standards Institution

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

    National foreword
    Cooperating organizations
    Section one - Scope and reference to existing IEC
    publications
    1. Scope
    2. Reference to existing IEC publications
    Section two - Voltage stresses in service
    3. General
    4. Power-frequency voltages
    5. Temporary overvoltages
    6. Switching and lightning overvoltages
    7. Determination of expected overvoltage levels
    Section three - Insulation withstand
    8. General
    9. Insulation behaviour at power-frequency voltages
         and temporary overvoltages
    10. Probability of disruptive discharge of insulation
         under impulse voltages
    11. Apparatus with windings
    Section four - Protective devices
    12. General
    13. Non-linear resistor-type surge arresters
    14. Expulsion-type surge arresters
    15. Spark gaps
    16. Application of different protective devices
    Section five - Coordination between stresses and
    withstand considerations common to ranges A, B and C
    17. Insulation design to power-frequency operating
         voltage and temporary overvoltages. Problems of
         pollution and ageing
    18. Pollution
    19. Ageing
    Section six - Coordination between stresses and
    withstand in voltage range A
    20. Selection of the rated power-frequency withstand
         voltage
    21. Selection of the rated lightning-impulse withstand
         voltage
    Section seven - Coordination between stresses and
    withstand in voltage range B
    22. Selection of the rated power-frequency withstand
         voltage and the rated lightning-impulse withstand
         voltage
    Section eight - Coordination between stresses and
    withstand in voltage range C
    23. Insulation design with respect to power-frequency
         voltage and temporary overvoltages
    24. Insulation design with respect to switching and
         lightning overvoltages
    25. Block-diagram of the insulation design and
         coordination of an electrical installation
    Appendix A - Surge transference through transformers
    Appendix B - Validity of the tests in Clauses 52, 53
                 and 54 of IEC Publications 71-1
    Appendix C - Statistical evaluation of the protective
                 effect of spark gaps
    Appendix D - Examples of application
    Appendix E - Clearances in air between live conductive
                 parts and earthed structures to secure a
                 specified impulse withstand voltage for
                 dry conditions
    Tables
    Figures

    Abstract - (Show below) - (Hide below)

    Guidance for national and economical solutions rather than strict rules for insulation coordination. Deals with the selection of the electric strength of equipment, of surge arresters or protective spark gaps, and considers the extent to which control of switching overvoltages may be useful.

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

    Committee PEL/99
    Development Note AMD 7533 implements HD 540.2 S1
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    BS 7729:1994 Specification for instrument transformers. Three-phase voltage transformers for voltage levels having Um up to 52 kV
    BS 7354:1990 Code of practice for design of high-voltage open-terminal stations
    BS 5622-1:1979 Guide for insulation co-ordination Terms, definitions, principles and rules
    BS 6581:1985 Specification for common requirements for high-voltage switchgear and controlgear standards
    BS EN 60383-2:1995 Insulators for overhead lines with a nominal voltage above 1000 V Insulator strings and insulator sets for a.c. systems. Definitions, test methods and acceptance criteria
    BS 7264-1:1990 Shunt capacitors for a.c. power systems having a rated voltage above 1000 V Specification for performance, testing and use
    EN 60383-2:1995 Insulators for overhead lines with a nominal voltage above 1 kV - Part 2: Insulator strings and insulator sets for a.c. systems - Definitions, test methods and acceptance criteria
    BS EN 61330:1996 High-voltage/low-voltage prefabricated substations
    BS 159:1992 Specification for high-voltage busbars and busbar connections
    BS 7578:1992 Coupling capacitors and capacitor dividers
    BS 5311:1988 Specification for high-voltage alternating-current circuit-breakers

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

    IEC 60060-2:2010 High-voltage test techniques - Part 2: Measuring systems
    IEC 60099-2:1962 Lightning arresters - Part 2: Expulsion-type lightning arresters
    BS 5622-1:1979 Guide for insulation co-ordination Terms, definitions, principles and rules
    IEC 60282-1:2009+AMD1:2014 CSV High-voltage fuses - Part 1: Current-limiting fuses
    BS 2692-1(1986) : 1986 AMD 8047 FUSES FOR VOLTAGES EXCEEDING 1000 V a.c. - SPECIFICATION FOR CURRENT LIMITING FUSES
    IEC 60099-1:1991+AMD1:1999 CSV Surge arresters - Part 1: Non-linear resistor type gapped surge arresters for a.c. systems
    IEC 60060-3:1976 High-voltage test techniques - Part 3: Measuring devices
    IEC 60060-4:1977 High-voltage test techniques - Part 4: Application guide for measuring devices
    IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
    IEC 60099-1A:1965 First supplementReplaced by IEC 99-5
    IEC 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules
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