• DD ENV 50196:1995

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    Live working. Required insulation level and related air distances. Calculation method

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  20-04-2012

    Language(s):  English

    Published date:  15-10-1995

    Publisher:  British Standards Institution

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

    Contents
    Foreword
    Foreword to Amendment 1
    Introduction
    Clause
    1. Scope
        1.1 Subject
        1.2 Field of applicability
    2. Normative references
    3. Definitions
        3.1 IEV definitions
        3.2 Special definitions
    4. Abbreviations
        4.2 Symbols
    5. Calculation of the Required Insulation Level for Live
        Working, RILL
    6. Calculation of the air distances related to the RILL
        6.1 Basic air distance Db
        6.2 Required minimum working distance between parts
             at different potential
        6.3 Required minimum working distance between the worker
             and parts at different potential
        6.4 Convential deviation factor kz
        6.5 Floating electrodes
        6.6 Insulator damage factor kc
        6.7 Altitude factor ka
        6.8 Gap factor kg
    Annexes
    A - Theoretical background of the specified method of
    calculation
    B - Live working under pollution, humidity and damaged
    insulators
    C - Determination of the ergonomic component
    D - Typical values of switching overvoltages, RILL and air
    distances

    Abstract - (Show below) - (Hide below)

    Provides a guide to the minimum safe distances of a worker from electrical parts at different potential.

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

    Committee PEL/78
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn

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

    IEC 60028:1925 International standard of resistance for copper
    IEC 60050-601:1985 International Electrotechnical Vocabulary (IEV) - Part 601: Generation, transmission and distribution of electricity - General
    IEC 60071-2:1996 Insulation co-ordination - Part 2: Application guide
    IEC 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules
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