1、 IEC TR 61243-6 Edition 1.0 2017-03 TECHNICAL REPORT Live working Voltage detectors Part 6: Guidelines on non-contact voltage detectors (NCVD) for use at nominal voltages above 1 kV AC IEC TR 61243-6:2017-03(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switze
2、rland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country
3、 of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb
4、Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC public
5、ations The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire biblio
6、graphical information on IEC International Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (ref
7、erence number, text, technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and also once
8、 a month by email. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing 20 000 terms and definitions in English and French, with equivalent terms in 16 additional languages. Also known as the International Electrotechnical Vocabulary
9、(IEV) online. IEC Glossary - std.iec.ch/glossary 65 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Cus
10、tomer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC TR 61243-6 Edition 1.0 2017-03 TECHNICAL REPORT Live working Voltage detectors Part 6: Guidelines on non-contact
11、voltage detectors (NCVD) for use at nominal voltages above 1 kV AC INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 13.260; 29.240.20; 29.260.99 ISBN 978-2-8322-3903-2 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an aut
12、horized distributor. colour inside 2 IEC TR 61243-6:2017 IEC 2017 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions 7 4 The principles of an NCVD 11 4.1 NCVD designed to work at a distance without any contact 11 4.2 NCVD designed to work with reference
13、 points . 13 4.2.1 General . 13 4.2.2 NCVD designed to work with one reference point 14 4.2.3 NCVD designed to work with two reference points . 15 5 Different designs of non-contact voltage detectors . 17 6 Limitations and recommendations of use for each type of NCVD . 19 6.1 Principal limitations .
14、 19 6.2 Recommendations for the selection, calibration and use of NCVD 19 6.2.1 Selection of the appropriate type of NCVD . 19 6.2.2 Calibration of the selected device 20 6.2.3 Use of the selected device . 20 7 Recommended requirements . 21 7.1 General . 21 7.2 Recommended general requirements 21 7.
15、2.1 Safety 21 7.2.2 Indication . 21 7.2.3 Electromagnetic compatibility (EMC) . 21 7.3 Recommended functional requirements 22 7.3.1 Clear indication . 22 7.3.2 Clear perceptibility . 25 7.3.3 Temperature and humidity dependence of the indication 26 7.3.4 Frequency dependence . 26 7.3.5 Response time
16、 . 26 7.3.6 Power source dependability . 26 7.3.7 Testing element . 26 7.3.8 Non response to DC voltage (static electric field) . 27 7.3.9 Immunity to electrostatic discharges 27 7.3.10 Time rating 27 7.4 Electrical requirements . 27 7.4.1 Insulating material . 27 7.4.2 Protection against bridging f
17、or Type 3 only 27 7.4.3 Resistance against sparking 28 7.4.4 Resistive (impedance) element of Type 5 only . 28 7.5 Recommendations for mechanical performance 28 7.5.1 General . 28 7.5.2 Design . 28 7.5.3 Dimensions and construction . 28 IEC TR 61243-6:2017 IEC 2017 3 7.5.4 Degree of protection provi
18、ded by enclosure . 30 7.5.5 Grip force and deflection 30 7.5.6 Vibration drop and shock resistance 31 7.6 Markings . 31 7.7 Instructions for use . 31 Annex A (informative) General considerations about voltage detection 32 A.1 General . 32 A.2 Principles of functioning of voltage detectors 32 A.2.1 B
19、asic analysis 32 A.2.2 Voltage detection with two contact electrodes (bi-polar detectors) . 32 A.2.3 Voltage detection with one contact electrode . 33 A.2.4 Voltage detection without contact electrode . 34 Annex B (informative) Instructions for use 36 Annex C (informative) In-service care 37 C.1 Gen
20、eral . 37 C.2 Maintenance . 37 Annex D (informative) Suitable for live working; double triangle . 38 Bibliography 39 Figure 1 NCVD working at a distance without any contact 12 Figure 2 Effect of the relative position of the non-contact voltage detector . 13 Figure 3 NCVD working at a distance with o
21、ne reference point 14 Figure 4 Non-contact voltage detector with a reference point making contact with the cable insulation covering an insulated conductor 15 Figure 5 Non-contact voltage detector working with two reference points making contact with the cap and pin of an insulator 16 Figure 6 Non-c
22、ontact voltage detector working with two reference points on an underground cable 16 Figure 7 Directional properties of NCVD working at distance 25 Figure 8 Examples of designs of NCVDs 29 Figure A.1 Bi-polar voltage detection principle . 33 Figure A.2 Capacitive unipolar voltage detection principle
23、 34 Table 1 Types of non-contact voltage detector . 18 Table 2 Limitations for use . 19 Table 3 Specific recommendations for use . 20 Table 4 Examples of values of the radius of the cone of detection as a function of the directional properties angle . 24 Table 5 Climatic categories 26 Table 6 Minimu
24、m length of the insulating element or of the insulating stick (L i ) 30 Table C.1 Recommended checking points for in-service care . 37 4 IEC TR 61243-6:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LIVE WORKING VOLTAGE DETECTORS Part 6: Guidelines on non-contact voltage detectors (NCVD)
25、for use at nominal voltages above 1 kV AC FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all q
26、uestions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publicat
27、ion(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, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC
28、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 agreements of IEC on technical matters express, as nearly as possible, an international consensus of opin
29、ion 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 use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to e
30、nsure 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 promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently
31、 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 indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certifica
32、tion bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall a
33、ttach 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 f
34、ees) 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 publica
35、tion. 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. The main task of IEC technical committees is to prepare International Standards. Howe
36、ver, a technical committee may propose the publication of a Technical Report when it has collected data of a different kind from that which is normally published as an International Standard, for example “state of the art“. IEC TR 61243-6, which is a Technical Report, has been prepared by IEC techni
37、cal committee 78: Live working. The text of this Technical Report is based on the following documents: Enquiry draft Report on voting 78/1143/DTR 78/1162A/RVDTR Full information on the voting for the approval of this Technical Report can be found in the report on voting indicated in the above table.
38、 IEC TR 61243-6:2017 IEC 2017 5 This document has been drafted in accordance with the ISO/IEC Directives, Part 2. Terms defined in Clause 3 are given in italic print throughout this standard. A list of all parts of the IEC 61243 series, published under the general title Live working Voltage detector
39、s, can be found on the IEC website. The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, wit
40、hdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its c
41、ontents. Users should therefore print this document using a colour printer. 6 IEC TR 61243-6:2017 IEC 2017 INTRODUCTION With the aim of ensuring the safety of the users the purpose of a voltage detector is to give a clear indication of the presence or absence of the operating voltage, without any ne
42、ed for interpretation or analytical evaluation by the user. IEC 61243-1, IEC 61243-2 and IEC 61243-3 apply to portable voltage detectors designed to work correctly when they are in direct contact with the bare part of the installation to be tested. At HV and UHV, large distances between the user and
43、 the bare parts to be tested make the handling of a very long insulating element or insulating stick an ergonomic and safety concern. In such situations, it may become convenient to avoid any contact with the bare part to be tested and to perform voltage detection at a distance. This document provid
44、es considerations and performance guidelines for portable “non-contact” voltage detectors and it can be used as a reference for the development of national, industry or manufacturers standard(s) or for the selection of a product by users. This document has been prepared taking into consideration the
45、 provisions given in IEC 61477. IEC TR 61243-6:2017 IEC 2017 7 LIVE WORKING VOLTAGE DETECTORS Part 6: Guidelines on non-contact voltage detectors (NCVD) for use at nominal voltages above 1 kV AC 1 Scope This part of IEC 61243, which is a Technical Report, is applicable to portable non-contact voltag
46、e detectors (NCVD) with built-in power source, to be used to indicate the presence or the absence of the operating voltage on electrical systems for nominal voltages above 1 kV AC and frequencies of 16 2/3 Hz, 50 Hz and/or 60 Hz. NOTE 16,7 Hz is often referenced. This document applies only to device
47、s that are not designed to be used in contact with the bare part of the installation on which the presence or the absence of the operating voltage has to be tested. This document describes only devices, and their behaviour, using electric field and voltage gradient detection principles even if other
48、 principles could be used. It provides performance guidelines, recommendations for use and recommended minimum criteria for selection. Devices like personal safety distance voltage detectors, distance voltage detectors for emergency responders or machine operators are not covered by this document. E
49、xcept when otherwise specified, all the voltages defined in this document refer to phase-to- phase voltages of three-phase systems. In other systems, the applicable phase-to-phase or phase-to-earth (ground) voltages are used to determine the operating voltage. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited a
