EN 61340-2-1-2015 en Electrostatics - Part 2-1 Measurement methods - Ability of materials and products to dissipate static electric charge.pdf

1、BSI Standards PublicationElectrostaticsPart 2-1: Measurement methods Ability of materials and products to dissipate static electric chargeBS EN 61340-2-1:2015National forewordThis British Standard is the UK implementation of EN 61340-2-1:2015. It isidentical to IEC 61340-2-1:2015. It supersedes BS E

2、N 61340-2-1:2002 whichis withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/101, Electrostatics.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provi

3、sions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 84071 5ICS 17.220.99; 29.020Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was pu

4、blished under the authority of theStandards Policy and Strategy Committee on 31 December 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 61340-2-1:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61340-2-1 November 2015 ICS 17.220.99; 29.020 Superse

5、des EN 61340-2-1:2002 English Version Electrostatics - Part 2-1: Measurement methods - Ability of materials and products to dissipate static electric charge (IEC 61340-2-1:2015) Electrostatique - Partie 2-1: Mthodes de mesure - Capacit des matriaux et des produits dissiper des charges lectrostatique

6、s (IEC 61340-2-1:2015) Elektrostatik - Teil 2-1: Messverfahren - Fhigkeit von Materialien und Erzeugnissen, elektrostatische Ladungen abzuleiten (IEC 61340-2-1:2015) This European Standard was approved by CENELEC on 2015-10-02. CENELEC members are bound to comply with the CEN/CENELEC Internal Regula

7、tions which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC me

8、mber. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versi

9、ons. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

10、 Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Managem

11、ent Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61340-2-1:2015 E BS EN 61340-2-1:2015EN 61340-2-1:2015 2 European foreword The text of document 101/446/CDV, future edition 2 of IEC

12、61340-2-1, prepared by IEC/TC 101 “Electrostatics“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61340-2-1:2015. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or

13、 by endorsement (dop) 2016-07-02 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2018-10-02 This document supersedes EN 61340-2-1:2002. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent r

14、ights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61340-2-1:2015 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the

15、following note has to be added for the standard indicated : IEC 61340-5-1 NOTE Harmonized as EN 61340-5-1. BS EN 61340-2-1:2015EN 61340-2-1:2015 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole

16、or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication

17、has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 61340-4-6 - Electrostatics - Part 4-

18、6: Standard test methods for specific applications - Wrist straps EN 61340-4-6 - IEC 61340-4-7 - Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization - - BS EN 61340-2-1:2015 2 IEC 61340-2-1:2015 IEC 2015 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative

19、 references 7 3 Terms and definitions 7 4 Method of measurement of charge decay 8 4.1 Principles 8 4.2 Environmental conditions 9 4.3 Apparatus for measurement of corona charge decay . 10 4.3.1 Physical design features 10 4.3.2 Containment of test material 11 4.3.3 Corona charge deposition 11 4.3.4

20、Fieldmeter . 11 4.4 Apparatus for measurement of contact charge decay 12 4.4.1 Physical design features 12 4.4.2 Charge decay time (tsd) 13 5 Practical application of test methods and procedures 14 5.1 General . 14 5.2 Charge decay test for textile materials 14 5.2.1 Selection of test method 14 5.2.

21、2 Test surface preparation 14 5.2.3 Testing 14 5.2.4 Results 15 5.2.5 Test report . 15 5.3 Charge decay test via gloves, finger cots or tools . 15 5.3.1 Selection of test method 15 5.3.2 Common steps in testing . 15 5.3.3 Test procedure for charge decay properties of finger cots as worn 16 5.3.4 Tes

22、t procedure for the charge decay properties of gloves as worn . 16 5.3.5 Test report for finger cots or gloves . 16 5.3.6 Test procedure for the charge decay properties of tools . 17 5.3.7 Test report for tools . 17 5.4 Null test for CPM. 17 Annex A (normative) Performance verification of measuring

23、instrumentation 19 A.1 Verification of corona charge decay measuring instrumentation 19 A.1.1 Aspects to be verified 19 A.1.2 Surface potential sensitivity verification . 19 A.1.3 Decay time verification 19 A.1.4 Verification procedure 19 A.2 Methods for verification of the capacitance of an isolate

24、d conductive plate . 20 A.2.1 General . 20 A.2.2 Capacitance meter method 20 A.2.3 Charge measuring method . 20 A.2.4 Charge-sharing method . 21 Bibliography 22 BS EN 61340-2-1:2015IEC 61340-2-1:2015 IEC 2015 3 Figure 1 Example of an arrangement for measurement of dissipation of charge using corona

25、charging 10 Figure 2 Example of an arrangement for measurement of dissipation of charge using a charged plate . 12 Figure 3 Charged plate detail . 13 Figure 4 Charge decay time (tsd) and offset voltage (U0) . 13 Figure A.1 Equivalent circuit for CPM and reference capacitor . 21 BS EN 61340-2-1:2015

26、4 IEC 61340-2-1:2015 IEC 2015 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTROSTATICS Part 2-1: Measurement methods Ability of materials and products to dissipate static electric charge FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization

27、 comprising all national electrotechnical 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

28、 Standards, Technical Specifications, Technical 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

29、 preparatory work. International, governmental 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 o

30、rganizations. 2) The formal decisions or agreements 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 f

31、orm of recommendations for international use 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 misinterpre

32、tation by any end user. 4) In order to promote 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

33、regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried

34、out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committ

35、ees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) 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 t

36、he Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 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 hel

37、d responsible for identifying any or all such patent rights. International Standard IEC 61340-2-1 has been prepared by IEC technical committee 101: Electrostatics. This second edition cancels and replaces the first edition published in 2002. This edition constitutes a technical revision. This editio

38、n includes the following significant technical changes with respect to the previous edition: BS EN 61340-2-1:2015IEC 61340-2-1:2015 IEC 2015 5 a) the first edition supported requirements in IEC TR 61340-5-1, but with the revision of IEC TR 61340-5-1 into an International Standard, this support is no

39、 longer required; references to IEC 61340-5-111have been removed; b) the introduction gives additional information on when charge decay time measurements are appropriate, and the applications for which each of the two test methods are best suited; c) procedures for performance verification of measur

40、ing instruments for the corona charging method have been added. The text of this standard is based on the following documents: CDV Report on voting 101/446/CDV 101/462/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above tab

41、le. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. It has the status of a horizontal standard in accordance with IEC Guide 1083. A list of all the parts in the IEC 61340 series, published under the general title Electrostatics, can be found on the IEC website. T

42、he committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revise

43、d edition, or amended. _ 1Numbers in square brackets refer to the Bibliography. BS EN 61340-2-1:2015 6 IEC 61340-2-1:2015 IEC 2015 INTRODUCTION Measurements of the rate of dissipation of static charge belong to the essential measurement techniques in the field of electrostatics. For homogeneous cond

44、uctive materials, this property can be evaluated indirectly by measuring resistance or resistivity parameters. Care should be exercised when determining the homogeneity of materials, as some materials that appear homogenous do exhibit non-homogeneous electrical characteristics. If the homogeneity of

45、 materials is not known and cannot be otherwise verified, resistance measurements may not be reliable or may not give enough information. Resistance measurements may also not be reliable when evaluating materials in the dissipative or insulative range and especially for high ohmic materials includin

46、g conductive fibres (e.g. textiles with a metallic grid). In such cases, the rate of dissipation of static charge should be measured directly. BS EN 61340-2-1:2015IEC 61340-2-1:2015 IEC 2015 7 ELECTROSTATICS Part 2-1: Measurement methods Ability of materials and products to dissipate static electric

47、 charge 1 Scope This part of IEC 61340 describes test methods for measuring the rate of dissipation of static charge of insulating and static dissipative materials and products. It includes a generic description of test methods and detailed test procedures for specific applications. The two test met

48、hods for measuring charge decay time, one using corona charging and one using a charged metal plate are different and may not give equivalent results. Nevertheless, each method has a range of applications for which it is best suited. The corona charging method is suitable for evaluating the ability

49、of materials, e.g. textiles, packaging, etc., to dissipate charge from their own surfaces. The charged metal plate method is suitable for evaluating the ability of materials and objects such as gloves, finger cots, hand tools, etc. to dissipate charge from conductive objects placed on or in contact with them. The charged plate method may not be suitable for evaluating the ability of materials to dissipate charge from their own surfaces. In addition to its general appli