1、 IEC 61340-2-1 Edition 2.0 2015-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Electrostatics Part 2-1: Measurement methods Ability of materials and products to dissipate static electric charge lectrostatique Partie 2-1: Mthodes de mesure Capacit des matriaux et des produits dissiper des charges lec
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20、2-1: Measurement methods Ability of materials and products to dissipate static electric charge lectrostatique Partie 2-1: Mthodes de mesure Capacit des matriaux et des produits dissiper des charges lectrostatiques INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE I
21、CS 17.220.99; 29.020 ISBN 978-2-8322-2877-7 HORIZONTAL STANDARD NORME HORIZONTALE Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor.
22、Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 61340-2-1:2015 IEC 2015 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions 7 4 Method of measurement of charge decay 8 4.1 Principles 8 4.2 Environmen
23、tal 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 Fieldmeter . 11 4.4 Apparatus for measurement of contact charge decay 12 4.4.1 Physical design features 12 4.4.2
24、Charge decay time (t sd ) 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 5.2.2 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 vi
25、a 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 Test procedure for the charge decay properties of gloves as worn . 16 5.3.5 Test report for finger cots or gloves
26、. 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 instrumentation 19 A.1 Verification of corona charge decay measuring instrumentation 19 A.1.1 Aspects to be ver
27、ified 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 isolated conductive plate . 20 A.2.1 General . 20 A.2.2 Capacitance meter method 20 A.2.3 Charge measuring method . 20
28、 A.2.4 Charge-sharing method . 21 Bibliography 22 IEC 61340-2-1:2015 IEC 2015 3 Figure 1 Example of an arrangement for measurement of dissipation of charge using corona charging 10 Figure 2 Example of an arrangement for measurement of dissipation of charge using a charged plate . 12 Figure 3 Charged
29、 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 4 IEC 61340-2-1:2015 IEC 2015 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTROSTATICS Part 2-1: Measurement methods Ability of materials and products
30、 to dissipate static electric charge 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 questi
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39、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.
40、 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 61340-2-1 has been prepared by IEC technical committee 101: Ele
41、ctrostatics. This second edition cancels and replaces the first edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: IEC 61340-2-1:2015 IEC 2015 5 a) the first edition support
42、ed 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 longer required; references to IEC 61340-5-11 1have been removed; b) the introduction gives additional information on when charge decay time measurements are appropriate,
43、 and the applications for which each of the two test methods are best suited; c) procedures for performance verification of measuring 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/RV
44、C Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. 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 l
45、ist of all the parts in the IEC 61340 series, published under the general title Electrostatics, can be found on the IEC website. The 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“ i
46、n the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. _ 1Numbers in square brackets refer to the Bibliography. 6 IEC 61340-2-1:2015 IEC 2015 INTRODUCTION Measurements of the rate of dissipation of stat
47、ic charge belong to the essential measurement techniques in the field of electrostatics. For homogeneous conductive 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
48、materials that appear homogenous do exhibit non- homogeneous electrical characteristics. If the homogeneity of 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 whe
49、n evaluating materials in the dissipative or insulative range and especially for high ohmic materials including conductive fibres (e.g. textiles with a metallic grid). In such cases, the rate of dissipation of static charge should be measured directly. IEC 61340-2-1:2015 IEC 2015 7 ELECTROSTATICS Part 2-1: Measurement methods Ability of materials and products to dissipate static electric c
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