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  • PD 6499:1981

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 to insulation co-ordination within low-voltage systems including clearances and creepage distances for equipment

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-10-1995

    Language(s):  English

    Published date:  31-08-1981

    Publisher:  British Standards Institution

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

    Cooperating organizations
    National foreword
    Introduction
    Section one - General and definitions
    1 Scope
    2 Object
    3 Definitions
    Section two - Insulation co-ordination
    4 Basic principles of insulation co-ordination
    Section three - Clearances in air
    5 Influencing factors
    6 Description of the fundamental factors influencing
        clearance
    7 Description of the other factors which may influence
        a clearance
    8 Dielectric tests
    Section four - Creepage distances
    9 General
    10 Specification of the influencing factors
    11 Dimensioning of creepage distances
    12 Measurement of creepage distances and clearances
    Appendices
    A Altitude correction factors
    B Transient overvoltage control means (surge arrestor
        devices)
    C Example of dimensioning procedure for clearances and
        creepage distances
    Explanatory note
        Application guide for clearances and insulation
        co-ordination based on clearance

    Abstract - (Show below) - (Hide below)

    States a principle of insulation co-ordination based upon a series of standardized impulse withstand voltage levels related to the dimensioning of clearances and creepage distances. Intended as a guide for technical bodies.

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

    Committee PEL/99
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    BS 5424-2:1987 Low-voltage controlgear Specification for semiconductor contactors (solid state contactors)
    BS EN 60687:1993 Specification for alternating current static watt-hour meters for active energy (classes 0,2 S and 0,5 S)
    BS 6941:1988 Specification for electrical apparatus for explosive atmospheres with type of protection N
    95/107917 DC : 0 MACHINERY AND PLANT FOR THE PREPARATION OF CONCRETE AND MORTAR - SAFETY REQUIREMENTS
    93/210506 DC : DRAFT AUG 1993 EN 50156 ELECTRICAL EQUIPMENT FOR FURNACES - PART 1 RULES FOR INSTALLATION (PREN 50156-1)
    BS 7002:1989 Specification for safety of information technology equipment including electrical business equipment
    BS 7354:1990 Code of practice for design of high-voltage open-terminal stations
    BS 7647:1993 Specification for radio teleswitches for tariff and load control
    BS 6972:1988 Specification for general requirements for luminaire supporting couplers for domestic, light industrial and commercial use
    BS 7452:1991 Specification for separating transformers, autotransformers, variable transformers and reactors
    BS EN 50059:1991 Specification for electrostatic hand-held spraying equipment for non-flammable material for painting and finishing
    BS 5724-2.15:1989 Medical electrical equipment. Particular requirements for safety Specification for capacitor discharge X-ray generators
    BS QC 960000:1992 Harmonized system of quality assessment for electronic components. Electromechanical switches for use in electronic equipment. Generic specification
    BS EN 61037:1993 Electricity metering. Tarriff and load control. Particular requirements for electronic ripple control receivers
    BS EN 61180-1:1995 High-voltage test techniques for low-voltage equipment Definitions, test and procedure requirements

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

    IEC 60099-1:1991+AMD1:1999 CSV Surge arresters - Part 1: Non-linear resistor type gapped surge arresters for a.c. systems
    IEC 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules
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