• IEC TR 60479-5:2007

    Current The latest, up-to-date edition.

    Effects of current on human beings and livestock - Part 5: Touch voltage threshold values for physiological effects

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

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    Published date:  07-11-2007

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Conditions and threshold values
      4.1 General
      4.2 Physiological effects of touch current
      4.3 Body impedance
      4.4 Impedance external to the body
      4.5 Other factors affecting voltage thresholds
      4.6 Touch voltage thresholds as a function of duration
      4.7 Touch voltage thresholds for long durations
    5 Touch voltage thresholds - Presentation of voltage-time curves
    Annex A (informative) Body impedance
    Annex B (informative) Touch voltage - Explanation of a method to
            derive estimates of touch voltages thresholds for strong
            muscular reactions and ventricular fibrillation from
            the body impedance tables and current limits in
            IEC/TS 60479-1
    Annex C (informative) Determination of voltage thresholds under
            selected conditions
    Annex D (informative) Limits of applicability
    Bibliography

    Abstract - (Show below) - (Hide below)

    This Technical Report provides touch voltage-duration combination thresholds based on analysis of information concerning body impedances and current thresholds of physiological effects, as given in IEC/TS 60479-1. Such threshold combinations relate to specific environmental and contact conditions that determine body impedance for particular current pathways. This technical report considers only (i) 50/60 Hz sinusoidal alternating voltage having no other frequency components and no significant direct voltage component, and (ii) direct voltage with no significant alternating component. This technical report provides thresholds as a result of calculations based on values from IEC/TS 60479-1, with uncertainties. Therefore thresholds proposed in this report also correspond to values with uncertainties. Touch voltage-duration combination thresholds are for use by technical committees as guidance for the determination of limits for touch voltage and touch voltage durations in various environmental situations. The contents of the corrigendum of July 2013 have been included in this copy.

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

    Development Note Stability Date: 2017. (10/2012)
    Document Type Technical Report
    Publisher International Electrotechnical Committee
    Status Current

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    BS EN 60519-1:2015 Safety in installations for electroheating and electromagnetic processing General requirements
    UNE-EN 61140:2017 Protection against electric shock - Common aspects for installation and equipment
    BS EN 62477-1 : 2012 SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL (IEC 62477-1:2012)
    EN 60519-1:2015 Safety in installations for electroheating and electromagnetic processing - Part 1: General requirements
    11/30249994 DC : DRAFT JULY 2011 BS 7430 - CODE OF PRACTICE FOR PROTECTIVE EARTHING OF ELECTRICAL INSTALLATIONS
    I.S. EN 62477-1:2012 SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL
    IEEE 1187-2013 REDLINE IEEE Recommended Practice for Installation Design and Installation of Valve-Regulated Lead-Acid Batteries for Stationary Applications
    I.S. EN 61140:2016 PROTECTION AGAINST ELECTRIC SHOCK - COMMON ASPECTS FOR INSTALLATION AND EQUIPMENT
    IEC TS 61201:2007 Use of conventional touch voltage limits - Application guide
    NASA STD 3001 VOL 2 : 2015 NASA SPACE FLIGHT HUMAN-SYSTEM STANDARD - VOLUME 2: HUMAN FACTORS, HABITABILITY, AND ENVIRONMENTAL HEALTH
    CSA CE CODE SAFETY PACKAGE : 2012 CE CODE SAFETY PACKAGE
    IEC 60519-1:2015 Safety in installations for electroheating and electromagnetic processing - Part 1: General requirements
    13/30277685 DC : 0 BS EN 60519-1 - SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
    IEC 62477-1:2012+AMD1:2016 CSV Safety requirements for power electronic converter systems and equipment - Part 1: General
    BS EN 61140 : 2002 PROTECTION AGAINST ELECTRIC SHOCK - COMMON ASPECTS FOR INSTALLATION AND EQUIPMENT
    I.S. EN 60519-1:2015 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
    EN 62477-1:2012/A1:2017 SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL (IEC 62477-1:2012/A1:2016)
    IEC 61140:2016 Protection against electric shock - Common aspects for installation and equipment
    EN 61140:2016 Protection against electric shock - Common aspects for installation and equipment

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

    IEC TS 60479-1:2005+AMD1:2016 CSV Effects of current on human beings and livestock - Part 1: Generalaspects
    IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
    IEC 60990:2016 Methods of measurement of touch current and protective conductor current
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