1、BRITISH STANDARD _I_._ I_ Specification for polyester fibre woven tapes Part 2. Methods of test The European Standard EN 610682 : 1997 has the status of a British Standard ICs 29.035.20 BS EN 61068-2 : 1997 IEC 61068-2 : 1991 BS EN 61068-2 : 1997 direction of the Electrokchnical Sector Board, was pu
2、blished under the authority of the Standards Board and comes into effect on 15 November 1997 Amd. No. O BSI 1997 National foreword Date Text affected This British Standard is the English language version of EN 610682 : 1997. It is identical with IEC 610682 : 1991. It supersedes BS 7809 : Part 2 : 19
3、95 which is withdrawn. The UK participation in its preparation was entnisted by Technical Committee GEU15, Insulating materials, to Subcommittee GEL/15/3, Material specifications, which has the responsibiity to: - aid enquirers to understand the text; - present to the responsible internationaUEurope
4、an 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 A list of organizations represented on this subcommittee can be obtained on request to its secretary.
5、 Rom 1 January 1997, all iEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-refere
6、nces Attention is ram to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in
7、 the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Fnd facility of the BSI Standards Electronic Catalogue. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document c
8、omprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. ISBN O 580 28494 8 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61068-2 August 1997 ICs 29.035.20 Descriptors: Electrical insulating materials. solid electrical insulating m
9、aterials, tapes, weaving, polyester fibres, tests, determination, thickness, width. retractibility, tensile strength, testing conditions English version Specification for polyester fibre woven tapes Part 2: Methods of test (IEC 61068-21991) Spcification pour rubans tisses en fibres de polyester Poly
10、esterfilamenten Partie 2: Mthodes dessai Bestimmung fr gewebte Bnder aus Teil 2: Prfverfahren (CE1 61 068-2: 1991 ) (IEC 61068-2:1991) This European Standard was approved by CENELEC on 1997-07-01. CENELEC members are bound to comply with the CENKENELEC Internal Regulations which stipulate the condit
11、ions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibiiographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in thr
12、ee 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 national electrotechnic
13、al committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechn
14、ique Europisches Komitee fr Elektrotechnische Normung Centrai Secretariat: rue de Stassart 35, 6 - 1050 Brussels 1997 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61068-2:1997 E STD.BSI BS EN bLOb8-2-ENGL 1797 Lb24bb7 Ob58787 7
15、72 0 Page 2 EN 61068-2 : 1997 . _ - Foreword The text of the International Standard IEC 61068-2:1991, prepared by SC 15C, Specifications, of IEC TC 15, Insulating materials, was submitted to the formal vote and was approved by CENELEC as EN 61 068-2 on 1997-07-01 without any modification. The follow
16、ing dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1998-06-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (daw) 1998-06-01 Endorsement noti
17、ce The text of the International Standard IEC 61 068-2:1991 was approved by CENELEC as a European Standard without any modification. Page 3 EN 61068-2 : 1997 SPECIFICATION FOR POLYESTER FIBRE WOVEN TAPES Part 2: Methods of test This pad of IEC 1068 spedfies requirements for tapes woven on shuttleles
18、s bom for continuous filament polyester fibres. This pad gives methods of test to demonstrate compliance with the general requirements of Part 1 and the specific requirements of Part 3 of the standard. Other park of IEC 1068 are: - Part 1: efinions, designation and general requirements. - Part3: Spe
19、cfficaaonsforindividualmaterials. 2 Normative references The fdloWing standards contain provisions which, through reference in this text, constitute pro- visions of this part. At the time of pubncaon, the edlaons indicated were valid. All standards are subjectto revision, and partiesbagteements base
20、d on this part are enawagdto investigate the possibility of applying- most recent editions ofthe standards listed below. Members of IEC and IS0 maintain registers of currently valid Intemational Standards. IS0 5081: 1977, Textiks - Woven fabrics - Determinaion of breaidng strength and c3bonganrOn (W
21、P mW). IS0 5084: 1977, Textiles - DetemJnaaon of thldrness of woven and kdtted fabrics (other fim textik floorcrrverlngs). 3 Tests 3.1 The ends shall be counted awss the full width of the tape wider ordinary room condiMons and Detemnation of number of warp ends dMded bythenominalwidthbobtain theendo
22、mmof nominalwldth. 32 Detemrinaaonofnuniberofpidcr The picks shall be anted ow not less aian 20 mm length of tape under ordinary room con- ditions and the average value shall becalailated from not lessaian three individual tests made at three different places along the tape. NOTE - Inmoa,Groequalori
23、ep#r(rreethedeniltiaidinPutl). 3.3 Detenr$naon of thickness The thidcness shall be detmined generally by the method given in BO 5084, modified as below: STD-BSI BS EN bLOb8-2-ENGL 1997 lb24bb7 Ob58771 520 E Page 4 EN 61068-2 : 1997 3.3.1 Test pieces Take fi- roils of tape selected at random. 3.32 co
24、nditioning Condition the rolls in an atmosphere of relative humidity within the range 45 % to 75 YO and with a temperature between 15 OC and 35 OC and then measure the thickness under these conditions. 3.3.3 rest t9parats Use test apparakts as desciibed in IS0 5084. Pressure to be selected from IS0
25、5084 to be the nearestto(lf10)kPa 3.3.4 Test procedure Clean the surface of the reference plate and of the presser foot. Adjust the hstniment to provide a reof100kPato200kPa.Inallcasesofdispute,adeadweighttestershallbeusedandthe piessureshallbe100kPa Separate the parallel plates and piace an uncreas
26、ed pad of the test piece without tension in contact with the reference plate. Reduce the distance between the reference plate and the presser foot untll CorifLICz is made gently with the tape and noie the reading of the gauge as soon as the movement ofthe pointer has ceased and the reading is easily
27、 visible. On each of the five selected rolls make fow measurements at random, one at each of the sel- vedges and two betweenthesehredges. 3.3.5 Results * For lhe We rolls there will be ten measuremen Fax: O181 996 7400. BSI offers members an individual updating service called PLUS which ensures that
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