BS EN 61340-4-5-2004 Electrostatics - Standard test methods for specific applications - Methods for characterizing the electrostatic protection of footwear and flooring in combinat.pdf

1、BRITISH STANDARD BS EN 61340-4-5:2004 Electrostatics Part 4-5: Standard test methods for specific applications Methods for characterizing the electrostatic protection of footwear and flooring in combination with a person The European Standard EN 61340-4-5:2004 has the status of a British Standard IC

2、S 17.220.99; 59.080.60 BS EN 61340-4-5:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 3 November 2004 BSI 3 November 2004 ISBN 0 580 44697 2 National foreword This British Standard is the official English language version of EN 61340-4-

3、5:2004. It is identical with IEC 61340-4-5:2004. The UK participation in its preparation was entrusted to Technical Committee GEL/101, Electrostatics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references

4、The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Stand

5、ards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the

6、responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the E

7、N title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 61340-4-5 NORME EUROPENNE EUROPISCHE NORM September 2004

8、 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2004 CENELEC - All rights of exploitation in any form and by any means reserved

9、 worldwide for CENELEC members. Ref. No. EN 61340-4-5:2004 E ICS 17.220.99 ; 59.080.60 English version Electrostatics Part 4-5: Standard test methods for specific applications Methods for characterizing the electrostatic protection of footwear and flooring in combination with a person (IEC 61340-4-5

10、:2004) Electrostatique Partie 4-5: Mthodes dessai normalises pour des applications spcifiques - Mthodes de caractrisation de la protection lectrostatique des chaussures et des revtements de sol par rapport une personne (CEI 61340-4-5:2004) Elektrostatik Teil 4-5: Standard-Prfverfahren fr spezielle A

11、nwendungen Verfahren zur Charakterisierung der elektrostatischen Schutzwirkung von Schuhwerk und Boden in Kombination mit einer Person (IEC 61340-4-5:2004) This European Standard was approved by CENELEC on 2004-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations whic

12、h 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 Central Secretariat or to any CENELEC member. This European

13、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 Central Secretariat has the same status as the official versions. CENELEC members are the n

14、ational electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and Unite

15、d Kingdom. EN 64310-4-5:0240 - - 2 Foreword The text of document 101/178/FDIS, future edition 1 of IEC 61340-4-5, prepared by IEC TC 101, Electrostatics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61340-4-5 on 2004-09-01. The following dates were fixed: latest d

16、ate by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2005-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2007-09-01 Annex ZA has been added by CENELEC. _ Endorsement

17、notice The text of the International Standard IEC 61340-4-5:2004 was approved by CENELEC as a European Standard without any modification. _ Page2 EN6134045:20046431-4-05 CEI 4002: 3 CONTENTS FOER.DROW5 1Scope4 2Normative references.4 3Terms and definitions.4 4Principle.4 5Atmosphere for conditioning

18、 and testing5 6Test methods for footwear and flooring in combination with a person.5 6.1Floor covering sampling and specimen preparation for laboratory tests.5 6.2 Cleaning of footwear for laboratory evaluations and for test on installed floor coverings6 6.3Measurement of electrical resistance.6 6.4

19、Measurement of chargeability8 7Test report. 9 Annex A (normative) Method of checking calibration of body voltage measuring system14 Figure 1 Set-ups for measuring electrical resistance of footwear and flooring in combination with a person.11 Figure 2 Typical body voltage recordings showing points us

20、ed in calculating mean values13 Page3 EN6134045:2004163-04-45 EI:C0024 9 ELECTROSTATICS Part 4-5: Standard test methods for specific applications Methods for characterizing the electrostatic protection of footwear and flooring in combination with a person 1 Scope This part of IEC 61340 specifies tes

21、t methods for evaluating electrostatic protection provided by a system of footwear and flooring in combination with a person. The test methods are not intended for individual material or system classification purposes. 2 Normative references The following referenced documents are indispensable for t

22、he application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60093, Methods of test for volume resistivity and surface resistivity of solid electrical insulating ma

23、terials IEC 61340-4-1, Electrostatics Part 4-1: Standard test methods for specific applications Electrostatic resistance of floor coverings and installed floors ISO 1957, Machine-made textile floor coverings Selection and cutting of specimens for physical tests 3 Terms and definitions For the purpos

24、es of this document, the terms and definitions given in IEC 61340-1-2 apply. 4 Principle The characterization of a system is achieved by measuring electrical resistance and chargeability of the footwear and flooring in combination with a person. Chargeability is determined using a walking test. WARN

25、ING: Test procedures described in this standard may expose personnel to potentially hazardous electrical conditions. Appropriate electrical hazard reduction practices should be exercised and proper earthing instructions for the equipment used should be followed when performing tests. Page4 EN6134045

26、:2004163-04-45 EI:C0024 11 5 Atmosphere for conditioning and testing The following requirements supersede any other specification for the atmosphere for conditioning and testing that may be given in one or more of the documents referred to in this standard. Unless otherwise agreed, the atmosphere fo

27、r conditioning and testing for laboratory evaluations shall be (23 2) C and (12 3) % relative humidity. The conditioning time prior to testing shall be at least 48 h. Textile floor coverings are preferably pre-conditioned for at least 24 h at (20 2) C and (65 3) % relative humidity prior to conditio

28、ning and testing. During pre-conditioning and conditioning, specimens shall be placed on a rack or other suitable support that allows free circulation of air around them. Whenever tests are made in uncontrolled conditions, e.g. tests on installed floors, the ambient temperature and relative humidity

29、 at the time of measurement shall be recorded. 6 Test methods for footwear and flooring in combination with a person 6.1 Floor covering sampling and specimen preparation for laboratory tests Sampling and selection of specimens for laboratory tests shall be carried out according to the principles spe

30、cified in ISO 1957. For the purposes of this standard, the general principles of ISO 1957 apply to all types of floor covering. From each sample select a specimen measuring (2 0,1) m (1 0,1) m or, in the case of tiles, select sufficient tiles and/or part tiles to make up a single specimen area of (2

31、 0,1) m (1 0,1) m. For tests on floor coverings that will be installed with specific earth connections, a groundable point shall be attached to the test specimen in accordance with the manufacturers instructions, or as otherwise agreed, and in a way that simulates end use earthing methods. For charg

32、eability tests on floor coverings that will be installed without specific earth connections, groundable points shall not be attached to the test specimen. Sensible electrical resistance measurements cannot be made in the laboratory on floor coverings that will be installed without specific earth con

33、nections. Measurement of the electrical resistance of footwear and flooring in combination with a person shall only be made on such floor coverings once installed. The test specimen shall be mounted or loose-laid on nominal 6,3 mm tempered or standard hardboard, according to the manufacturers instru

34、ctions or as otherwise agreed. When mounted or loose-laid on the hardboard there shall be a gap of at least 10 mm between each edge of the specimen and the corresponding edge of the hardboard. The hardboard shall be clean, smooth and have a point-to-point resistance of greater than 10 11 when tested

35、 under the environmental conditions specified in Clause 5 of this standard and according to the test method specified in IEC 61340-4-1. Page5 EN6134045:2004163-04-45 EI:C0024 31 Floor finishes shall be tested in conjunction with floor coverings representative of the type for which the finishes are i

36、ntended. The floor covering shall be prepared and mounted as detailed above. The finish under test shall then be applied to the floor covering in accordance with the manufacturers instructions or as otherwise agreed. In cases where the manufacturer recommends the use of additional groundable points

37、on the surface of the floor covering, these shall be installed as per the manufacturers instructions prior to application of the finish, or as otherwise agreed. NOTE Generally, tests are performed on floor coverings as received, i.e. with finishes and special treatments as appropriate. If the perman

38、ency of such finishes and treatments is being investigated, specimens may be submitted to a cleaning process or to practical wear conditions before testing, either for laboratory evaluations or on installed floor coverings. Test results can be significantly affected by the presence of dirt or other

39、contaminants on the surface of floor coverings. Any cleaning performed on floor coverings shall be carried out as per the manufacturers instructions prior to conditioning. 6.2 Cleaning of footwear for laboratory evaluations and for test on installed floor coverings Test results can be significantly

40、affected by the presence of dirt or other contaminants on the soles of footwear. Any cleaning performed on footwear prior to and during testing shall be as follows. If it is required to test footwear “as received” or “as used” then cleaning shall be omitted from the test procedure. 6.2.1 Cleaning ma

41、terials 6.2.1.1 Sandpaper P280 grade sandpaper. 6.2.1.2 Scoured cotton cloth The cloth shall be free from finish and detergent. 6.2.1.3 Ethanol Concentration 95 %. 6.2.2 Cleaning procedure Scrub the sole of each item of footwear using a piece of scoured cotton (6.2.1.2) wetted with ethanol (6.2.1.3)

42、 to remove any chemical substance from the surface. When the soles are dry, abrade with a fine sandpaper (6.2.1.1), then remove the dust using a dry piece of scoured cotton. Finally, scrub the sole of each item of footwear again using a fresh piece of scoured cotton wetted with ethanol. This final s

43、tage only shall be repeated between each set of measurements. Ensure soles are dry before making measurements. 6.3 Measurement of electrical resistance 6.3.1 Apparatus 6.3.1.1 Resistance measuring apparatus A self-contained DC resistance meter (ohmmeter) or DC power supply and current meter in the a

44、ppropriate configuration for resistance measurement, with a 10 % accuracy, and fulfilling the following requirements. Page6 EN6134045:2004163-04-45 EI:C0024 51 NOTE For safety reasons, it should be ensured that the maximum current of the measuring circuit does not exceed 5 mA. 6.3.1.1.1 For laborato

45、ry evaluations The apparatus shall have a circuit voltage while under load of 10 V 0,5 V for resistance below 1,0 10 6 , and 100 V 5 V for resistance of 1,0 10 6 and above. The measuring range of the apparatus shall be at least one order of magnitude either side of the expected range of resistance b

46、eing measured. The apparatus shall be used in a manner that ensures unintended earth paths do not influence measurements. 6.3.1.1.2 For acceptance testing The apparatus shall have an open circuit voltage of 10 V 0,5 V for resistance below 1,0 10 6 , and 100 V 5 V for resistance of 1,0 10 6 and above

47、. The measuring range of the apparatus shall be at least one order of magnitude either side of the expected range of resistance being measured. The apparatus shall be used in a manner that ensures unintended earth paths do not influence measurements. Laboratory evaluation equipment as specified in 6

48、.3.1.1.1 may also be used for acceptance testing. In case of dispute, only a laboratory evaluation apparatus shall be used. 6.3.1.2 Hand-held electrode A stainless steel round stock or tube, approximately 25 mm diameter and 75 mm in length with a banana plug receptacle or screw connector attached to

49、 one end of the cylinder. 6.3.2 Test procedure Wear the test footwear on both feet for at least 10 min prior to the commencement of testing. Connect the negative lead of the resistance measuring apparatus (6.3.1.1) to the groundable point of the test floor covering (laboratory tests) or to earth (tests on installed floor coverings). Connect th