1、 IEC 61477Edition 2.0 2009-02INTERNATIONAL STANDARD NORME INTERNATIONALELive working Minimum requirements for the utilization of tools, devices and equipment Travaux sous tension Exigences minimales pour lutilisation des outils, dispositifs et quipements IEC61477:2009 THIS PUBLICATION IS COPYRIGHT P
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16、sciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61477Edition 2.0 2009-02INTERNATIONAL STANDARD NORME INTERNATIONALELive working Minimum requirements for the utilization of tools, devices and equipment Travaux sous tension Exigences minimales pour lutilisation des outils, dispositifs et quip
17、ements INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE NICS 13.260; 29.240.20; 29.260.99 PRICE CODECODE PRIXISBN 2-8318-1030-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61
18、477 IEC:2009 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Terms and definitions .7 4 Characteristics of tools .7 4.1 Marking, graphical symbols and information to the users.7 4.2 Dimensions and weight .8 4.3 Electrical characteristics8 4.4 Mechanical characteristics 9 4.5
19、 Thermal characteristics .9 5 Conditions of use .9 5.1 Operating range 10 5.2 Precautions for use .10 5.3 Verifications before use.11 6 Conditions for maintenance 11 6.1 Cleaning11 6.2 Periodic checks and verifications.12 6.3 Repair .12 7 Conditions for storage and transportation .13 Bibliography14
20、61477 IEC:2009 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LIVE WORKING MINIMUM REQUIREMENTS FOR THE UTILIZATION OF TOOLS, DEVICES AND EQUIPMENT FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical
21、committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Tech
22、nical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governme
23、ntal and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or a
24、greements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international u
25、se and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to pro
26、mote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indi
27、cated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach
28、 to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees)
29、and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication.
30、 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61477 has been prepared by IEC technical committee 78: Live wor
31、king. This second edition of IEC 61477 cancels and replaces the first edition published in 2001, its Amendment 1 (2002) and Amendment 2 (2004). The document 78/772/FDIS, circulated to the National Committees as Amendment 3, led to the publication of the new edition. The text of this standard is base
32、d on the first edition, Amendment 1, Amendment 2 and the following documents: FDIS Report on voting 78/772/FDIS 78/786/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. 4 61477 IEC:2009 This publication has been dr
33、afted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date,
34、the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 61477 IEC:2009 5 INTRODUCTION This International Standard does not replace national regulations but it can be regarded as a reference for the development of national regulations. Where National regulations are
35、 in force to dictate the conditions of utilization of tools, devices and equipment for live working, these can be more stringent than the minimum requirements of this standard. 6 61477 IEC:2009 LIVE WORKING MINIMUM REQUIREMENTS FOR THE UTILIZATION OF TOOLS, DEVICES AND EQUIPMENT 1 Scope This Interna
36、tional Standard gives the minimum requirements relative to specification, manufacture, selection, application and maintenance of tools, devices and equipment for live working. It provides the type of information which is useful to skilled persons in order to make the use of tools, devices and equipm
37、ent safer. This type of information includes: the characteristics of tools, devices and equipment; their conditions for use; their conditions for maintenance; their conditions for storage and transportation. Such information may be given in standards, manufacturers instructions for use and in intern
38、al regulations set forth by companies for their own employees. Such information should be completed by work methods, which are excluded from the scope of this standard. In this standard, the word tool(s) is used for “tools, devices and equipment for live working“ unless otherwise specified. 2 Normat
39、ive references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-651:1999, International
40、Electrotechnical Vocabulary (IEV) Part 651: Live working IEC 60417, Graphical symbols for use on equipment IEC 60743, Terminology for tools and equipment to be used in live working 61477 IEC:2009 7 3 Terms and definitions For the purposes of this document, the following terms and definitions apply.
41、3.1 (electrically) skilled person (electrically) qualified person (US) person with relevant education and experience to enable him or her to perceive risks and to avoid hazards which electricity can create IEV 651-01-33 3.2 required insulation level for live working (RILL) statistical impulse withst
42、and voltage of the insulation at the work location necessary to reduce the risk of breakdown of this insulation to an acceptable low level NOTE It is generally considered that an acceptable low level is reached when the value of the statistical impulse withstand voltage is greater than or equal to t
43、he overvoltage having a probability of being exceeded by no more than 2 %. IEV 651-01-17 3.3 live working zone space around live parts where prevention of electrical hazard is assured by suitable means such as limiting access to skilled persons, maintaining the appropriate air distances to energized
44、 parts and using tools for live working NOTE 1 The distance from the live parts to the outer boundary of a live working zone is greater or equal to the minimum working distance. NOTE 2 The live working zone and the specific precautions that apply are generally defined by national or company regulati
45、ons. NOTE 3 In some countries the term “danger zone“ is used instead of “live working zone“. IEV 651-01-06 3.4 tools (for live working) tools, devices and equipment particularly designed or adapted, tested and maintained for live working IEV 651-01-24 4 Characteristics of tools The selection of tool
46、s to carry out the work to be performed requires a combination of both the advice and guidance from the manufacturer of the tools and the knowledge and experience of the user. This information enables the user to select tools that are not only the easiest to use but also ensures that tools are not u
47、sed beyond their capabilities. Those persons using the tools should be informed of the correct use of the tools and any particular safety issues that need to be observed or recognized. 4.1 Marking, graphical symbols and information to the users It is essential for the safety of the user to have a cl
48、ear meaning of the marking, including graphical symbols. 8 61477 IEC:2009 The items of marking shall be clearly and durably legible. They shall not impair the performance of the tool, particularly its insulating properties, if any. This subclause applies to the tools considered as final products, an
49、d not to the raw material they are made of. According to that, it is considered inappropriate to mark the raw material with the double triangle. Tools for which compliance with any IEC standard dealing with live working is claimed, shall be indicated by the following marking, as a minimum: symbol IEC 60417-5216 (2002-10) Suitable for live working; double triangle; number of the relevant IEC standa
