EN IEC 61340-4-4-2018 Electrostatics - ParT 4-4 Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk con.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06ElectrostaticsPart 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk containers (FIBC)BS EN IEC 61340-4-4:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE

2、NORM EN IEC 61340-4-4 April 2018 ICS 17.220.99; 29.020; 55.080 Supersedes EN 61340-4-4:2012 English Version Electrostatics - Part 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk containers (FIBC) (IEC 61340-4-4:2018) Electrostatique -

3、 Partie 4-4: Mthodes dessai normalises pour des applications spcifiques - Classification lectrostatique des grands rcipients pour vrac souples (GRVS) (IEC 61340-4-4:2018) Elektrostatik - Teil 4-4: Normprfverfahren fr spezielle Anwendungen - Einordnung flexibler Schttgutbehlter (FIBC) in elektrostati

4、scher Hinsicht (IEC 61340-4-4:2018) This European Standard was approved by CENELEC on 2018-03-06. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. U

5、p-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 member. This European Standard exists in three official versions (English, French, German). A version in any other language made by

6、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 versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republ

7、ic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kin

8、gdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means res

9、erved worldwide for CENELEC Members. Ref. No. EN IEC 61340-4-4:2018 E National forewordThis British Standard is the UK implementation of EN IEC 61340-4-4:2018. It is identical to IEC 61340-4-4:2018. It supersedes BS EN 61340-4-4:2012+A1:2015, which is withdrawn.The UK participation in its preparatio

10、n was entrusted to Technical Committee GEL/101, Electrostatics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

11、 The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 95656 0ICS 29.020; 17.220.99; 55.080Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strat

12、egy Committee on 30 April 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN IEC 61340-4-4:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 61340-4-4 April 2018 ICS 17.220.99; 29.020; 55.080 Supersedes EN 61340-4-4:2012 English Version Electrostati

13、cs - Part 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk containers (FIBC) (IEC 61340-4-4:2018) Electrostatique - Partie 4-4: Mthodes dessai normalises pour des applications spcifiques - Classification lectrostatique des grands rcipi

14、ents pour vrac souples (GRVS) (IEC 61340-4-4:2018) Elektrostatik - Teil 4-4: Normprfverfahren fr spezielle Anwendungen - Einordnung flexibler Schttgutbehlter (FIBC) in elektrostatischer Hinsicht (IEC 61340-4-4:2018) This European Standard was approved by CENELEC on 2018-03-06. CENELEC members are bo

15、und to comply with the CEN/CENELEC Internal Regulations 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

16、CEN-CENELEC Management Centre or to any CENELEC member. 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 Managemen

17、t Centre has the same status as the official versions. 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

18、 Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europische

19、s Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 61340-4-4:2018 E BS EN IEC 61340-4-4:2018EN IEC 61340-4-4:2018 (E)

20、2 European foreword The text of document 101/546/FDIS, future edition 3 of IEC 61340-4-4, prepared by IEC/TC 101 “Electrostatics“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61340-4-4:2018. The following dates are fixed: latest date by which the document has to b

21、e implemented at national level by publication of an identical national standard or by endorsement (dop) 2018-12-06 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2021-03-06 This document supersedes EN 61340-4-4:2012. Attention is drawn to the po

22、ssibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61340-4-4:2018 was approved by CENELEC as a European Standard w

23、ithout any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60079-32-2 NOTE Harmonized as EN 60079-32-2. IEC 61340-2-1 NOTE Harmonized as EN 61340-2-1. BS EN IEC 61340-4-4:2018EN IEC 61340-4-4:2018 (E) 3 Annex ZA (normativ

24、e) Normative references to international publications with their corresponding European publications 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 applies. Fo

25、r undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 Where an International Publication 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 Eur

26、opean Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60079-10-1 - Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres EN 60079-10-1 - IEC 60079-10-2 - Explosive atmospheres - Part 10-2: Classification of area

27、s - Explosive dust atmospheres EN 60079-10-2 - IEC 60243-1 2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies EN 60243-1 2013 IEC 60243-2 - Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direc

28、t voltage EN 60243-2 - IEC 60417-DB - Graphical symbols for use on equipment - - IEC 61340-2-3 - Electrostatics - Part 2-3: Methods of test for determining the resistance and resistivity of solid materials used to avoid electrostatic charge accumulation EN 61340-2-3 - ISO 7000 - Graphical symbols fo

29、r use on equipment - Registered symbols - - ISO 21898 - Packaging - Flexible intermediate bulk containers (FIBCs) for non-dangerous goods EN ISO 21898 - ISO/IEC 80079-20-2 - Explosive atmospheres - Part 20-2: Material characteristics - Combustible dusts test methods EN ISO/IEC 80079-20-2 - ASTM E582

30、 - Standard test method for minimum ignition energy and quenching distance in gaseous mixtures - - BS EN IEC 61340-4-4:2018This page deliberately left blank 2 IEC 61340-4-4:2018 IEC 2018 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 9 3 Terms and definitions 10 4 Classifica

31、tion . 12 4.1 Classification for FIBC 12 4.1.1 Principles of classification 12 4.1.2 Type A . 12 4.1.3 Type B . 12 4.1.4 Type C. 12 4.1.5 Type D. 12 4.2 Principles of classification and requirements for inner liners . 12 4.2.1 Components of inner liners 12 4.2.2 Surface resistivity measurements for

32、inner liners . 13 4.2.3 Breakdown voltage measurements for inner liners . 13 4.2.4 Type L1 . 14 4.2.5 Type L1C . 15 4.2.6 Type L2 . 15 4.2.7 Type L3 . 16 4.3 Combination of FIBC and inner liners 17 5 Safe use of FIBC . 17 6 Labelling 19 7 Requirements for FIBC 22 7.1 General remarks . 22 7.2 Require

33、ments for dust environments with ignition energies greater than 3 mJ (apply to Type B FIBC, Type C FIBC and Type D FIBC) 22 7.3 Requirements for vapour and gas atmospheres and for dust environments with ignition energies of 3 mJ or less 23 7.3.1 Type C FIBC 23 7.3.2 Type D FIBC 23 8 Atmosphere for c

34、onditioning, calibrating and testing 24 8.1 Conditioning time 24 8.2 Electrical breakdown voltage, surface resistivity and resistance to groundable point testing 24 8.3 Surface resistivity testing 24 8.4 Ignition testing 24 9 Test procedures 24 9.1 Sampling. 24 9.2 Electrical breakdown voltage. 24 9

35、3 Ignition testing 25 9.3.1 Apparatus 25 9.3.2 Establishing correct charging current . 32 9.3.3 Ignition tests 32 9.4 Resistance to groundable point . 35 9.4.1 Apparatus 35 2 IEC 61340-4-4:2018 IEC 2018 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 9 3 Terms and definition

36、s 10 4 Classification . 12 4.1 Classification for FIBC 12 4.1.1 Principles of classification 12 4.1.2 Type A . 12 4.1.3 Type B . 12 4.1.4 Type C. 12 4.1.5 Type D. 12 4.2 Principles of classification and requirements for inner liners . 12 4.2.1 Components of inner liners 12 4.2.2 Surface resistivity

37、measurements for inner liners . 13 4.2.3 Breakdown voltage measurements for inner liners . 13 4.2.4 Type L1 . 14 4.2.5 Type L1C . 15 4.2.6 Type L2 . 15 4.2.7 Type L3 . 16 4.3 Combination of FIBC and inner liners 17 5 Safe use of FIBC . 17 6 Labelling 19 7 Requirements for FIBC 22 7.1 General remarks

38、 . 22 7.2 Requirements for dust environments with ignition energies greater than 3 mJ (apply to Type B FIBC, Type C FIBC and Type D FIBC) 22 7.3 Requirements for vapour and gas atmospheres and for dust environments with ignition energies of 3 mJ or less 23 7.3.1 Type C FIBC 23 7.3.2 Type D FIBC 23 8

39、 Atmosphere for conditioning, calibrating and testing 24 8.1 Conditioning time 24 8.2 Electrical breakdown voltage, surface resistivity and resistance to groundable point testing 24 8.3 Surface resistivity testing 24 8.4 Ignition testing 24 9 Test procedures 24 9.1 Sampling. 24 9.2 Electrical breakd

40、own voltage. 24 9.3 Ignition testing 25 9.3.1 Apparatus 25 9.3.2 Establishing correct charging current . 32 9.3.3 Ignition tests 32 9.4 Resistance to groundable point . 35 9.4.1 Apparatus 35 BS EN IEC 61340-4-4:2018IEC 61340-4-4:2018 IEC 2018 3 9.4.2 Test procedure 35 10 Test report . 36 10.1 Genera

41、l . 36 10.2 For all types of testing 37 10.3 For electrical breakdown voltage testing . 37 10.4 For ignition testing 37 10.5 For resistance to groundable point testing . 37 10.6 For surface resistivity testing of inner liners, labels and document pockets . 37 10.7 For test reports issued by accredit

42、ed testing authorities 37 Annex A (informative) Electrical breakdown voltage Typical voltage/time graphs 39 Annex B (normative) Polypropylene pellets for ignition testing . 40 Annex C (informative) Guidance on test methods for manufacturing quality control 41 C.1 Introductory remarks . 41 C.2 Test m

43、ethods 41 C.2.1 Resistance measurements . 41 C.2.2 Charge decay measurements 42 C.2.3 Charge transfer measurements 42 Annex D (normative) Classification of hazardous areas and zones . 43 Annex E (informative) Risks associated with cone discharges 44 Annex F (informative) Explanation for resistance a

44、nd resistivity limits, and thickness limits for insulating layers of inner liners . 45 F.1 Resistance to groundable point limit for Type C FIBC . 45 F.2 Resistivity of inner liners . 45 F.3 Thickness of insulating layers of inner liners . 45 Bibliography 47 Figure 1 Examples of inner liners in FIBC

45、13 Figure 2 Example of a label for Type B FIBC . 20 Figure 3 Example of a label for Type C FIBC . 20 Figure 4 Example of a label for Type D FIBC . 21 Figure 5 Example of labels for Type C FIBC designated earth bonding points 21 Figure 6 Ignition probe . 26 Figure 7 Perforated metal plate for use in

46、ignition probe 27 Figure 8 Gas control and mixing apparatus (schematic) . 28 Figure 9 FIBC filling rig (schematic) . 30 Figure 10 Corona charging unit (schematic) . 31 Figure A.1 Example of voltage/time graph for material showing distinct breakdown 39 Figure A.2 Example of voltage/time graph for mat

47、erial showing reduction in rate of voltage rise because of conduction within the test material . 39 Table 1 Permissible configurations and requirements for Type L1 inner liners (without conductive internal layers) 14 Table 2 Permissible configurations and requirements for Type L1C inner liners (with

48、 conductive internal layersa) 15 Table 3 Permissible configurations and requirements for Type L2 inner liners 16 Table 4 Permissible configurations and requirements for Type L3 inner liners 17 BS EN IEC 61340-4-4:2018 4 IEC 61340-4-4:2018 IEC 2018 Table 5 Use of different types of FIBC . 17 Table 6

49、Inner liners and FIBC: combinations that are permissible and not permissible in hazardous explosive atmospheres 18 Table 7 Volume concentrations of flammable gas mixture 27 Table 8 Example of full sample description to be included in the test report . 38 Table B.1 Particle size distribution of polypropylene pellets . 40 Table D.1 Classification of hazardous areas in IEC 60079-10-1 and IEC 60079-10-2 . 43 Table D.2 Classification of zones in IEC 60079-10-