1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 29.260.99 ISBN 0-626-14816-2 SANS 61243-2:2003 Edition 1.2 IEC 61243-2:2002 Edition 1.2 Any reference to SABS IEC 61243-2 is deemed to be a reference
4、 to this standard (Government Notice No. 1373 of 8 November 2002) SOUTH AFRICAN NATIONAL STANDARD Live working Voltage detectors Part 2: Resistive type to be used for voltages of 1 kV to 36 kV a.c. This national standard is the identical implementation of IEC 61243-2:2002 and is adopted with the per
5、mission of the International Electrotechnical Commission. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa 2003 SANS 61243-2:2003 Edition 1.2 IEC 6124
6、3-2:2002 Edition 1.2 Table of changes Change No. Date Scope IEC amdt 1 1995 Amended to add a clause on the influence of magnetic fields and changing the robustness of earth lead and connections, to delete the clause on the other mechanical tests on earth lead and to add new figures. IEC amdt 2 1999
7、Amended to add a normative reference, requirements for markings in the detector and the robustness of earth lead and connections, a test for influence of magnetic interference field, new figures 12 and 13 and to change the cleaning agent for the test under wet conditions. National foreword This Sout
8、h African standard was approved by National Committee STANSA SC 67E, Electricity dis t r ibution, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS edition cancels and replaces edition 1.1 (SABS IEC 61243-2:2000). NORMEINTERNATION
9、ALECEIIECINTERNATIONALSTANDARD61243-2Edition 1.22002-06Travaux sous tension Dtecteurs de tension Partie 2:Type rsistif pour usage sur des tensionsalternatives de 1 kV 36 kVLive working Voltage detectors Part 2:Resistive type to be used for voltagesof 1 kV to 36 kV a.c.Commission Electrotechnique Int
10、ernationaleInternational Electrotechnical CommissionPour prix, voir catalogue en vigueurFor price, see current catalogue IEC 2002 Droits de reproduction rservs Copyright - all rights reservedAucune partie de cette publication ne peut tre reproduite niutilise sous quelque forme que ce soit et par auc
11、un procd,lectronique ou mcanique, y compris la photocopie et lesmicrofilms, sans laccord crit de lditeur.No part of this publication may be reproduced or utilized inany form or by any means, electronic or mechanical,including photocopying and microfilm, without permission inwriting from the publishe
12、r.International Electrotechnical Commission 3, rue de Varemb Geneva, SwitzerlandTelefax: +41 22 919 0300 e-mail: inmailiec.ch IEC web site http:/www.iec.chCODE PRIXPRICE CODE XAEdition 1:1995 consolide par les amendements 1:1999 et 2:2002Edition 1:1995 consolidated with amendments 1:1999 and 2:20026
13、1243-2 IEC:1995+A1:1999+A2:2002 3 CONTENTSFOREWORD.71 Scope.92 Normative references .93 Definitions 114 Requirements .194.1 General .194.2 Functional requirements 194.3 Electrical requirements234.4 Mechanical requirements.254.5 Markings .295 Tests 295.1 General .295.2 Functional tests.335.3 Electric
14、al tests.415.4 Mechanical tests .516 Sampling procedure .597 Quality assurance plan .598 Records59Annex A (normative) Chronology of tests .85Annex B (normative) Instructions for use .87Annex C (normative) Sampling procedure 89Annex D (normative) Mechanical shock test (see 5.4.7) .93Annex E (normativ
15、e) Symbol for marking .97Annex F (informative) Acceptance tests .99Annex G (informative) In-service care 101Figure 1 Detectors .63Figure 2 Set-up for functional tests 65Figure 3 Circuit connections for functional tests .67Figure 4 Test set-up for measurement of clear perceptibility of visual indicat
16、ion.69Figure 5 Test set-up for measurement of clear perceptibility of audible indication 71Figure 6 Curves of measurement of response time 73Figure 7 Test set-up with bars for test of protection against bridging 75Figure 8 Arrangement for testing bridging protection of outdoor type detector77Figure
17、9 Test for grip force.7761243-2 IEC:1995+A1:1999+A2:2002 5 Figure 10 Curve of test cycle for climatic resistance.79Figure 11 Test set-up for dielectric strength for indicator housing and resistive element 79Figure 12 Test set-up for the influence of magnetic interference field.81Figure 13 Test set-u
18、p for the robustness of the earth lead and connections .83Figure D.1 Details of pendulum for shock test95Figure E.1 Symbol for marking.97Table 1 Climatic categories23Table 2 Maximum length of bare portion of contact electrode.27Table 3 Narrow point spacings for testing of protection against bridging
19、 47Table A.1 Sequential order for performing tests .85Table C.1 Classification of defects.89Table C.2 Sampling plan for major defects.91Table C.3 Sampling plan for minor defects.9161243-2 IEC:1995+A1:1999+A2:2002 7 INTERNATIONAL ELECTROTECHNICAL COMMISSION_LIVE WORKING VOLTAGE DETECTORS Part 2: Resi
20、stive type to be used for voltages of 1 kV to 36 kV a.c.FOREWORD1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprisingall national electrotechnical committees (IEC National Committees). The object of the IEC is to promoteinternational co-ope
21、ration on all questions concerning standardization in the electrical and electronic fields. Tothis end and in addition to other activities, the IEC publishes International Standards. Their preparation isentrusted to technical committees; any IEC National Committee interested in the subject dealt wit
22、h mayparticipate in this preparatory work. International, governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation. The IEC collaborates closely with the InternationalOrganization for Standardization (ISO) in accordance with conditions determined by a
23、greement between thetwo organizations.2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3) The do
24、cuments produced have the form of recommendations for international use and are published in the formof standards, technical specifications, technical reports or guides and they are accepted by the NationalCommittees in that sense.4) In order to promote international unification, IEC National Commit
25、tees undertake to apply IEC InternationalStandards transparently to the maximum extent possible in their national and regional standards. Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.5) The IEC provides no marking
26、procedure to indicate its approval and cannot be rendered responsible for anyequipment declared to be in conformity with one of its standards.6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subjectof patent rights. The IEC shall not be hel
27、d responsible for identifying any or all such patent rights.International Standard IEC 61243-2 has been prepared by IEC technical committee 78: Toolsfor live working.This consolidated version of IEC 61243-2 is based on the first edition (1995) documents78/164+164A/FDIS and 78/181/RVD, its corrigenda
28、 June 1996, July 1999 and March 2000,its amendment 1 (1999) documents 78/288/FDIS and 78/294/RVD and its amendment 2(2002) documents 78/431/FDIS and 78/452/RVD.It bears the edition number 1.2.A vertical line in the margin shows where the base publication has been modified byamendments 1 and 2.The co
29、ntents of the corrigenda have been included in this copy.Annexes A, B, C, D and E form an integral part of this standard.Annexes F and G are for information only.The committee has decided that the contents of the base publication and its amendments willremain unchanged until 2008. At this date, the
30、publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended.61243-2 IEC:1995+A1:1999+A2:2002 9 LIVE WORKING VOLTAGE DETECTORS Part 2: Resistive type to be used for voltages of 1 kV to 36 kV a.c.1 ScopeThis part of IEC 61243 is applicable to portable voltage detectors with o
31、r without a built-inpower source to be used on electrical systems for voltages of 1 kV to 36 kV a.c., andfrequencies from 15 Hz to 60 Hz.This part applies only to resistive voltage detectors used in contact with the part to be tested,as a single unit or as a separate device completed by an adaptable
32、 insulating pole covered inIEC 60855 or IEC 61235. Other types of voltage detectors are not covered by this part ofstandard. Capacitive voltage detectors are covered in IEC 61243-1.The upper voltage limit is in accordance with the tests described in this part of IEC 61243.Some restrictions on their
33、use are applicable in the case of factory-assembled switchgear andon overhead systems of electrified railways (see annex B).NOTE 1 Except when otherwise specified, all the voltages defined in this standard refer to phase-to-phasevoltages of three-phase systems. Resistive detectors may be used in oth
34、er than three-phase systems, but theapplicable phase-to-phase or phase-to-earth (ground) voltage shall be used to determine the operating voltage.NOTE 2 Although this standard does not cover d.c. voltage detectors, some detectors may respond to d.c.voltage.2 Normative referencesThe following referen
35、ced documents are indispensable for the application of this document.For dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.IEC 60050(151):1978, International Electrotechnical Vocabulary (IEV) Chap
36、ter 151: Elec-trical and magnetic devicesIEC 60050(601):1985, International Electrotechnical Vocabulary (IEV) Chapter 601:Generation, transmission and distribution of electricity GeneralIEC 60060-1:1989, High-voltage test techniques Part 1: General definitions and testrequirementsIEC 60068-1:1988, E
37、nvironmental testing Part 1: General and guidanceAmendment 1 (1992)IEC 60068-2-6:1982, Environmental testing Part 2: Tests Test Fc and guidance: Vibration(sinusoidal)IEC 60068-2-14:1984, Environmental testing Part 2: Tests Test N: Change of temperature61243-2 IEC:1995+A1:1999+A2:2002 11 IEC 60068-2-
38、32:1975, Environmental testing Part 2: Tests Test Ed: Free fallAmendment 2 (1990)IEC 60071-1:1993, Insulation co-ordination Part 1: Definitions, principles and rulesIEC 60417 (all parts), Graphical symbols for use on equipmentIEC 60651:1979, Sound level metersAmendment 1 (1993)IEC 60855:1985, Insula
39、ting foam-filled tubes and solid rods for live workingIEC 61235:1993, Live working Insulating hollow tubes for electrical purposesIEC 61318:1994, Live working Guidelines for quality assurance plansISO 2859-1:1999, Sampling procedures for inspection by attributes Part 1: Samplingschemes indexed by ac
40、ceptance quality limit (AQL) for lot-by-lot inspectionISO 3745:1977, Acoustics Determination of sound power levels of noise sources Precisionmethods for anechoic and semi-anechoic roomsISO 8402:1986, Quality VocabularyISO 9000:1987, Quality management and quality assurance standards Guidelines forse
41、lection and useISO 9002:1987: Quality systems Model for quality assurance in production and installationISO 9004:1987, Quality management and quality system elements GuidelinesICI 15.2:1986, Colorimetry3 DefinitionsFor the purposes of this part of IEC 61243, the following definitions apply.3.1adapto
42、rpart allowing the assembly of the detector3.2accessoriesitems used to lengthen the handle or the contact electrode, to improve the efficiency of thecontact electrode or to enable the contact electrode to reach the part to be tested3.3contact electrodeconductive part which makes the electrical conne
43、ction to the part to be tested.61243-2 IEC:1995+A1:1999+A2:2002 13 3.4contact electrode extensionexternally insulated conductive section between the resistive element and the contactelectrode, intended to achieve the correct position of the indicator relative to the part to betested3.5voltage detect
44、ora portable device used to detect the presence or the absence of the operating voltage of partto be tested3.6capacitive detectordevice whose operation is based on the current passing through the stray capacitance toearth (ground)3.7resistive detector (detector)device whose operation is based on the
45、 current passing through a resistor located in theresistive element, and a galvanic connection to earth (ground). Resistive detectors are of twotypes: a single unit including or not an insulating element, with or without contact electrodeextension, and a separate unit completed with an adaptable ins
46、ulating pole, with or without contactelectrode extension3.8insulating elementsection of insulating material which provides adequate distance and insulation to the user3.9resistive elementelement which contains the current-limiting resistor and conductive parts3.10testing elementbuilt-in or external
47、device, by means of which the functioning of the detector can be checkedby the user3.11earth leadlead that connects the detector to earth (ground). It includes an earth clip or clamp3.12indicatorpart of the detector which indicates the presence or absence of the operating voltage at thecontact elect
48、rode3.13clear indicationunambiguous detection and indication of the voltage state at the contact electrode61243-2 IEC:1995+A1:1999+A2:2002 15 3.14insulating polepole made of insulating material3.15interference fieldelectric field which may affect the indication. It may result from the part to be tes
49、ted or otheradjacent components and may have any phase relationship.The extreme cases for the tests are: An in-phase interference field exists when a small change of potential in the direction of thedetector axis results in an incorrect indication. This occurs as a result of the dimensionsand/or configuration of the part of installation to be tested (or of adjacent parts ofinstallation having voltages in the same
