• IEC TS 61201:2007

    Current The latest, up-to-date edition.

    Use of conventional touch voltage limits - Application guide

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

    Language(s):  English - French

    Published date:  30-08-2007

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Use of this technical specification
    4 Conditions and values of thresholds
      4.1 Physiological effects of body current
      4.2 Body impedance
    5 Voltage thresholds and limits
      5.1 Voltage threshold as a function of contact area
      5.2 Conventional voltage limits
    6 Limits of applicability
      6.1 Higher frequency alternating voltages and currents
      6.2 Immersion
      6.3 Medical applications
    Annex A (informative) Voltage thresholds - charged capacitors
    Bibliography

    Abstract - (Show below) - (Hide below)

    Provides guidance on the use of conventional touch voltage limits with reference to thresholds given in IEC 60479-5. Consideration is given to different physiological effects, environmental conditions, contact conditions, etc. This specification only discusses voltages for sinusoidal a.c. at 50/60 Hz and pure d.c. having no significant a.c. component. This specification does not consider immersion of body parts or medical applications. Touch voltage limits are for use by technical committees as guidance for the determination of their own specific limits. This basic safety publication is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51. It is not intended for use by manufacturers or certification bodies One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements, test methods or test conditions of this basic safety publication will not apply unless specifically referred to or included in the relevant publications. This second edition cancels and replaces the first edition which was issued as a technical report in 1992. It constitutes a technical revision and now has the status of a technical specification. The main changes with respect to the previous edition are listed below: - proposal of maximum contact areas for various conventional touch voltage limit; - introduction of different current pathways through the human body for the selection of conventional touch voltage limit; - introduction of conventional touch voltage limit corresponding to the startle reaction current threshold, the inability of let-go current threshold and the ventricular fibrillation current threshold; - possibility of interpolation on contact area for other conventional touch voltage limits. It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC Guide 51.

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

    Committee TC 64
    Development Note Supersedes IEC 61201. (08/2007) Stability Date: 2017. (10/2012)
    Document Type Technical Specification
    Publisher International Electrotechnical Committee
    Status Current

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

    PD IEC/TS 62257-9-1:2016 (published 2016-10) Recommendations for renewable energy and hybrid systems for rural electrification Integrated systems. Micropower systems
    12/30239867 DC : 0 BS EN 62368-1 - AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    13/30287037 DC : 0 BS EN 62870 ED. 1.0 - ELECTRICAL INSTALLATIONS FOR LIGHTING AND BEACONING OF AERODROMES - SAFETY SECONDARY CIRCUITS IN SERIES CIRCUITS - GENERAL SAFETY REQUIREMENT
    I.S. EN 62368-1:2014 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS (IEC 62368-1:2014, MODIFIED)
    BS EN 61230 : 2008 LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    DD IEC TS 62257-9-1 : DRAFT 2008 RECOMMENDATIONS FOR SMALL RENEWABLE ENERGY AND HYBRID SYSTEMS FOR RURAL ELECTRIFICATION - PART 9-1: MICROPOWER SYSTEMS
    11/30229758 DC : 0 BS EN 62344 - GENERAL GUIDELINES FOR THE DESIGN OF GROUND ELECTRODES FOR HIGH-VOLTAGE DIRECT CURRENT (HVDC) LINKS
    BS EN 62368-1 : 2014 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    PD IEC/TS 62344:2013 (published 2013-02) Design of earth electrode stations for high-voltage direct current (HVDC) links. General guidelines
    12/30258453 DC : 0 BS EN 62368-1 AMD - AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    BS EN IEC 63044-3:2018 HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 3: ELECTRICAL SAFETY REQUIREMENTS
    17/30347375 DC : 0 BS EN 62368-1 ED 3.0 - AUDIO/VIDEO; INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    I.S. EN 62477-1:2012 SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL
    IEC TS 60479-1:2005+AMD1:2016 CSV Effects of current on human beings and livestock - Part 1: Generalaspects
    EN 61439-1 : 2011 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES (IEC 61439-1:2011)
    IEC TS 62257-9-1:2016 Recommendations for renewable energy and hybrid systems for rural electrification - Part 9-1: Integrated systems - Micropower systems
    EN 62368-1:2014/AC:2017-03 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS (IEC 62368-1:2014, MODIFIED)
    I.S. EN 61140:2016 PROTECTION AGAINST ELECTRIC SHOCK - COMMON ASPECTS FOR INSTALLATION AND EQUIPMENT
    NF EN 62368-1 : 2014 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    I.S. EN 61439-1:2011 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES (IEC 61439-1:2011)
    I.S. EN IEC 63044-3:2018 HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 3: ELECTRICAL SAFETY REQUIREMENTS
    ISO/TS 22559-2:2010 Safety requirements for lifts (elevators) Part 2: Safety parameters meeting the global essential safety requirements (GESRs)
    I.S. EN 60519-1:2015 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
    I.S. EN IEC 62485-2:2018 SAFETY REQUIREMENTS FOR SECONDARY BATTERIES AND BATTERY INSTALLATIONS - PART 2: STATIONARY BATTERIES
    IEC TR 63167:2018 ASSESSMENT OF CONTACT CURRENT RELATED TO HUMAN EXPOSURE TO ELECTRIC, MAGNETIC AND ELECTROMAGNETIC FIELDS
    EN IEC 63044-3 : 2018 HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 3: ELECTRICAL SAFETY REQUIREMENTS (IEC 63044-3:2017)
    15/30259978 DC : 0 BS EN 62477-2 - SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 2: POWER ELECTRONIC CONVERTERS FROM 1000 V A.C. OR 1500 V D.C. UP TO 36 KV A.C. OR 54 KV D.C.
    I.S. EN 62870:2015 ELECTRICAL INSTALLATIONS FOR LIGHTING AND BEACONING OF AERODROMES - SAFETY SECONDARY CIRCUITS IN SERIES CIRCUITS - GENERAL SAFETY REQUIREMENTS
    BS IEC 61892-6:2013 MOBILE AND FIXED OFFSHORE UNITS - ELECTRICAL INSTALLATIONS - PART 6: INSTALLATION
    I.S. EN 61230:2008 LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    IEC 61892-6:2013 Mobile and fixed offshore units - Electrical installations - Part 6: Installation
    I.S. EN 62135-1:2015 RESISTANCE WELDING EQUIPMENT - PART 1: SAFETY REQUIREMENTS FOR DESIGN, MANUFACTURE AND INSTALLATION
    IEC 60335-2-72:2016 Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use
    IEC TS 62344:2013 Design of earth electrode stations for high-voltage direct current (HVDC) links - General guidelines
    IEC 62368-1:2014 Audio/video, information and communication technology equipment - Part 1: Safety requirements
    IEC 62485-2:2010 Safety requirements for secondary batteries and battery installations - Part 2: Stationary batteries
    CSA C22.2 No. 62368-1 : 2014 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY 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)
    BS EN 60519-1:2015 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
    IEC 61230:2008 Live working - Portable equipment for earthing or earthing and short-circuiting
    IEC 61140:2016 Protection against electric shock - Common aspects for installation and equipment
    UNE-EN 61439-1:2012 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
    07/30091745 DC : 0 BS IEC 62368 - AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - SAFETY - REQUIREMENTS
    BS EN 62135-1 : 2015 RESISTANCE WELDING EQUIPMENT - PART 1: SAFETY REQUIREMENTS FOR DESIGN, MANUFACTURE AND INSTALLATION
    DD ISO/TS 22559-2:2010 SAFETY REQUIREMENTS FOR LIFTS (ELEVATORS) - PART 2: SAFETY PARAMETERS MEETING THE GLOBAL ESSENTIAL SAFETY REQUIREMENTS (GESRS)
    IEC 60519-1:2015 Safety in installations for electroheating and electromagnetic processing - Part 1: General requirements
    IEC 62870:2015 Electrical installations for lighting and beaconing of aerodromes - Safety secondary circuits in series circuits - General safety requirements
    13/30277685 DC : 0 BS EN 60519-1 - SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
    IEC 62135-1:2015 Resistance welding equipment - Part 1: Safety requirements for design, manufacture and installation
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    UNE-EN 62870:2016 Electrical installations for lighting and beaconing of aerodromes - Safety secondary circuits in series circuits - General safety requirements
    08/30195433 DC : 0 BS EN 60519-1 - SAFETY IN ELECTROHEAT INSTALLATIONS - PART 1: GENERAL REQUIREMENTS
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    16/30350625 DC : 0 BS EN 62485-5 ED 1.0 - SAFETY REQUIREMENTS FOR SECONDARY BATTERIES AND BATTERY INSTALLATIONS - PART 5: LITHIUM-ION BATTERIES FOR STATIONARY APPLICATIONS
    BS EN 61439-1:2011 (published 2011-11) 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
    BS EN 61140 : 2002 PROTECTION AGAINST ELECTRIC SHOCK - COMMON ASPECTS FOR INSTALLATION AND EQUIPMENT
    17/30345652 DC : 0 BS IEC 62040-5-1 ED 1.0 - UNINTERRUPTIBLE POWER SYSTEMS (UPS) - PART 5-1: DC OUTPUT UPS - SAFETY REQUIREMENTS
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    16/30301661 DC : 0 BS EN 61439-1 ED3.0 - LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES
    EN 60519-1 : 2015 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS (IEC 60519-1:2015)
    EN IEC 62485-2 : 2018 SAFETY REQUIREMENTS FOR SECONDARY BATTERIES AND BATTERY INSTALLATIONS - PART 2: STATIONARY BATTERIES (IEC 62485-2:2010)
    EN 61230 : 2008 LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    EN 61140 : 2016 PROTECTION AGAINST ELECTRIC SHOCK - COMMON ASPECTS FOR INSTALLATION AND EQUIPMENT (IEC 61140:2016)
    EN 62870 : 2015 ELECTRICAL INSTALLATIONS FOR LIGHTING AND BEACONING OF AERODROMES - SAFETY SECONDARY CIRCUITS IN SERIES CIRCUITS - GENERAL SAFETY REQUIREMENTS (IEC 62870:2015)
    EN 62135-1:2015/AC:2016-02 RESISTANCE WELDING EQUIPMENT - PART 1: SAFETY REQUIREMENTS FOR DESIGN, MANUFACTURE AND INSTALLATION

    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
    ISO/IEC Guide 51:2014 Safety aspects Guidelines for their inclusion in standards
    IEC GUIDE 104:2010 The preparation of safety publications and the use of basic safety publications and group safety publications
    IEC 61140:2016 Protection against electric shock - Common aspects for installation and equipment
    IEC TR 60479-5:2007 Effects of current on human beings and livestock - Part 5: Touch voltage threshold values for physiological effects
    IEC TS 60479-2:2007 Effects of current on human beings and livestock - Part 2: Special aspects
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