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1、BRITISH STANDARD BS 6893-3: Sections 420 to 422:1995 IEC 684-3-420 to 422:1991 Flexible insulating sleeving for electrical purposes Part 3: Specification requirements for individual types of sleeving Sections 420 to 422: Polyethylene terephthalate textile with acrylic based coating (Implementation o
2、f HD 523.3.420 to 422.S1:1993) UDC 621.315.6:621.643.3 Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3:Sections 420 to 422:1995 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, w
3、as published under the authority of the Standards Board and comes into effect on 15 October 1995 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference GEL/15/3/5 Draft announced in BSI News April 1995 ISBN 0 580 24326 5 Committees responsible for this Brit
4、ish Standard The preparation of this British Standard was entrusted by Technical Committee GEL/15, Insulating material, to Subcommittee GEL/15/3/5, Sleevings, upon which the following bodies were represented: Adhesive Tape Manufacturers Association British Rubber Manufacturers Association Ltd. Minis
5、try of Defence Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3:Sections 420 to 422:1995 BSI 10-1999i Contents Page Committees responsibleInside front cover National forewordi
6、i Foreword2 Introduction3 1Scope3 2Designation3 3Requirements3 Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications6 Table I Dimensional requirements4 Table II Property requirements4 Table III Mandrel diameters for be
7、nding tests5 Table IV Requirements for breakdown voltage5 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3:Sections 420 to 422:1995 ii BSI 10-1999 National foreword This Section of BS 6893 has bee
8、n prepared by Subcommittee GEL/15/3/5. It implements Harmonization Document HD 523.3.420 to 422 S1:1993 which was published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC 684-3, Specification for flexible insulating sleeving Part 3: Specification r
9、equirements for individual types of sleeving Sheets 420 to 422: Polyethylene terephthalate textile with acrylic based coating, published by the International Electrotechnical Commission (IEC). A British Standard does not purport to include all the necessary provisions of a contract. Users of British
10、 Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International StandardCorresponding British Standard BS 6893 Flexible insulating sleeving for electrical purposes IEC 684-1:1990Par
11、t 1:1987 Specification for general requirements IEC 684-2:1984Part 2:1987 Methods of test HD 457 S1:1985BS 7645:1993 Code for designation of colours (IEC 757:1983) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the HD title page, pages 2 to 6, an insid
12、e back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c)
13、 BSI HARMONIZATION DOCUMENT DOCUMENT DHARMONISATION HARMONISIERUNGSDOKUMENT HD 523.3.420 to 422 S1 April 1993 UDC 621.315.6:621.643.3 Descriptors: Electrical insulating materials, protection sleevings, terephtalate, polyethylene textile, acrylic coatings, specifications English version Specification
14、 for flexible insulating sleeving Part 3: Specification requirements for individual types of sleeving Sheets 420 to 422: Polyethylene terephthalate textile with acrylic based coating (IEC 684-3-420 to 422:1991) Spcification pour gaines isolantes souples Troisime partie: Spcifications particulires au
15、x types particuliers de gaines Feuilles 420 422: Gaines en trphtalate de polythylne tisses avec revtement acrylique (CEI 684-3-420 422:1991) Bestimmung fr flexible Isolierschluche Teil 3: Anforderungen fr einzelne Schlauchtypen Bltter 420 bis 422: Polyethylenterephthalat-Textilschluche mit Acrylbesc
16、hichtung (IEC 684-3-420 bis 422:1991) This Harmonization Document was approved by CENELEC on 1993-03-09. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Document on a national level. Up-to-date list
17、s and bibliographical references concerning national implementation may be obtained on application to the Central Secretariat or to any CENELEC member. This Harmonization Document exists in three official versions (English, French, German). CENELEC members are the national electrotechnical committee
18、s 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 Electrotechnique Europis
19、ches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1993 Copyright reserved to CENELEC members Ref. No. HD 523.3.420 to 422 S1:1993 E Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3:Se
20、ctions 420 to 422:1995 BSI 10-1999 2 Foreword The CENELEC questionnaire procedure, performed for finding out whether or not the International Standard IEC 684-3-420 to 422:1991 could be accepted without textual changes, has shown that no common modifications were necessary for the acceptance as Harm
21、onization Document. The reference document was submitted to the CENELEC members for formal vote and was approved by CENELEC as HD 523.3.420 to 422 S1 on 9 March 1993. The following dates were fixed: For products which have complied with the relevant national standard before 1994-06-01, as shown by t
22、he manufacturer or by a certification body, this previous standard may continue to apply for production until 1999-06-01. Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. latest date of announcement of the HD at national level(doa) 1993-12
23、-01 latest date of publication of a harmonized national standard(dop) 1994-06-01 latest date of withdrawal of conflicting national standards(dow) 1994-06-01 Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3:Sections 420 to 422:1995 B
24、SI 10-1999 Introduction This standard is one of a series which deals with flexible insulating sleeving for electrical purposes. The series consists of three parts: Part 1: Definitions and general requirements (IEC Publication 684-1); Part 2: Methods of test (IEC Publication 684-2); Part 3: Specifica
25、tion requirements for individual types of sleeving (IEC Publication 684-3). This standard gives three of the sheets comprising Part 3 as follows: Sheet 420: Polyethylene terephthalate textile with acrylic based coating: high breakdown strength; Sheet 421: Polyethylene terephthalate textile with acry
26、lic based coating: medium breakdown strength; Sheet 422: Polyethylene terephthalate textile with acrylic based coating: low breakdown strength. 1 Scope This specification gives the requirements for sleeving constructed from polyethylene terephthalate yarns using either braided or knitted constructio
27、n, with a continuous acrylic based coating. The sleeving is normally available in bore sizes 0.5 mm to 25.0 mm and in the following colours: black, yellow, brown, blue and red. Experience of product performance indicates that sleeving of the types specified in these sheets may be suitable for operat
28、ion at 130 C or in some applications at temperature up to 155 C. 2 Designation The sleeving shall be identified by one of the following means: a) in words and numbers; b) by the designation which follows; c) by both of the above. IEC 684-3-420 (or 421 or 422) nominal bore size in millimetres with su
29、ffix1) indicating tolerance type wall thickness colour. Knitted sleeving construction shall be identified by inserting the word “knitted” after the colour. For example: IEC 684-3-4212.5 B0.5 black-knitted. Any abbreviation used for colour shall comply with IEC Publication 757. 3 Requirements Sleevin
30、g shall comply with the general requirements given in IEC Publication 684-1. In addition, the labelling shall indicate whether the construction of sleeving is knitted or braided. The sleeving shall comply with the dimensional requirements in Table I and with the property requirements in Table II. 1)
31、 “B” indicates bilateral and “U” indicates unilateral tolerance. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3:Sections 420 to 422:1995 4 BSI 10-1999 Table I Dimensional requirements Table II Property requirements Nominal bore di
32、ameter Tolerance on bore diameter Wall thickness (mm) (mm)Sheet 420Sheet 421Sheet 422 BilateralUnilateral Min.Max.Min.Max.Min.Max. (mm)()(+) 0.5 0.8 1.0 1.5 2.0 2.5 3.0 4.0 5.0 6.0 8.0 10.0 12.0 16.0 20.0 25.0 0.15 0.15 0.15 0.15 0.15 0.15 0.25 0.25 0.25 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.30 0.30
33、0.30 0.30 0.30 0.30 0.50 0.50 0.50 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.25 0.25 0.25 0.35 0.35 0.40 0.40 0.50 0.50 0.50 0.50 0.65 0.65 0.65 0.65 0.65 0.50 0.60 0.75 0.75 0.75 0.75 0.80 0.80 1.0 1.0 1.0 1.10 1.10 1.10 1.20 1 20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.30 0.30 0.30 0.30 0.40 0.40 0.40 0.40 0.40
34、0.50 0.60 0.75 0.75 0.75 0.75 0.75 0.75 0.90 0.90 1.0 1.0 1.0 1.0 1.0 1.0 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.20 0.20 0.20 0.20 0.40 0.40 0.40 0.40 0.40 0.50 0.60 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 1.0 1.0 1.0 1.0 1.0 1.0 NOTE 1Measurements shall be made to the nearest 0.05 mm. NOTE 2The requi
35、red form of tolerance shall be indicated as described in Clause 2. Properties IEC Publication 684-2 Clause Units Max. or Min. Prescriptions Remarks Sheet 420Sheet 421Sheet 422 Resistance to soldering heat 7PassPassPassRestricted to 5 mm nominal bore diameter and under Bending after heating 13No crac
36、king or detachment of coating shall be visible and the original colour shall be clearly recognizable Test temperature: 155 C 3 C Mandrel diameters are given in Table III Bending at low temperature 14No cracking or detachment of coating shall be visible Test temperature not above 15 C Mandrel diamete
37、rs are given in Table III Hydrolysis of coating 17No running of the coating, adherence between sleeving and paper and between the pieces of sleeving, or any sign of discolouration of the paper Breakdown voltage 21kVMin. See Table IV Method of Sub-clause 21.2 not to be used with nominal bore diameter
38、s exceeding 3 mm Insulation resistance 22.4.2M7Min. 103103102 Longitudinal change 9Max.5 %5 %5 %The time of test shall be 20 min and the temperature 180 C 3 C Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3:Sections 420 to 422:1995
39、 BSI 10-1999 Table III Mandrel diameters for bending tests Table IV Requirements for breakdown voltage Nominal bore diameter Mandrel diameter (mm) (mm) After heatingAt low temperature 0.5 0.8 1.0 1.5 2.0 2.5 3.0 4.0 5.0 6.0 8.0 10.0 12.0 16.0 20.0 25.0 3 4 5 6 8 10 12 15 18 21 27 33 40 6 6 6 3 4 5 6
40、 8 10 12 15 18 21 27 6 6 6 6 6 Breakdown voltage shall be determined at room temperature, elevated temperature and after damp heat by any one of the three methods given in the following table. The central value and lowest value results shall be not less than the values appropriate to the test proced
41、ures. The rate of application of voltage shall be 500 V/s or such that the required breakdown value is reached in between 10 s and 20 s. The test at elevated temperature shall be carried out at 155 C 3 C. Specimen (Sub-clause and reference of Publication 684-2) Conditions of test and sub-clause of P
42、ublication 684-2 Sheet 420Sheet 421Sheet 422 Room temperature 21.7.2 Elevated temperature 21.7.3 Damp heat 21.7.4 Room temperature 21.7.2 Elevated temperature 21.7.3 Damp heat 21.7.4 Room temperature 21.7.2 Shot batha (Sub-clause 21.2) or Straight mandrel, 250 mm electrode (Sub-clause 21.4) Central
43、value (kV) Lowest value (kV) 5.0 4.0 3.0 2.5 2.0 1.5 3.0 2.5 2.0 1.5 2.0 1.5 1.5 1.0 Straight mandrel with 25 mm electrode (Sub-clause 21.3) Central value (kV) Lowest value (kV) 7.0 5.0 2.8 2.0 2.0 1.5 4.0 2.5 1.6 1.0 1.2 0.8 2.5 1.5 a The shot bath test (Sub-clause 21.2) shall not be used for sleev
44、ing with nominal bore diameter exceeding 3 mm. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3:Sections 420 to 422:1995 6 BSI 10-1999 Annex ZA (normative) Other international publications quoted in this standard with the references
45、 of the relevant European publications When the international publication has been modified by CENELEC common modifications, indicated by (mod), the relevant EN/HD applies. IEC publicationDateTitleEN/HDDate 7571983Code for designation of coloursHD 457 S11985 Licensed Copy: sheffieldun sheffieldun, n
46、a, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3:Sections 420 to 422:1995 BSI 10-1999 List of references See national foreword. Licensed Copy: sheffieldun sheffieldun, na, Tue Dec 05 06:59:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6893-3: Sections 420 to 422:1995 IE
47、C 684-3-420 to 422:1991 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Rev
48、isions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or a
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