1、BRITISH STANDARD BS EN 60684-3-121 to 124:2001 IEC 60684-3-121 to 124:2001 Flexible insulating sleeving Part 3: Specifications for individual types of sleeving Sheets 121 to 124: Extruded silicone sleeving The European Standard EN 60684-3-121 to 124:2001 has the status of a British Standard ICS 29.0
2、35.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 60684-3-121 to 124:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strate
3、gy Committee on 2 April 2002 BSI 2 April 2002 ISBN 0 580 39255 4 National foreword This British Standard is the official English language version of EN 60684-3-121 to 124:2001. It is identical with IEC 60684-3-121 to 124:2001. It supersedes BS 6893-3-121 and 122:1995 and BS EN 60684-3-123 and 124:19
4、95 which are withdrawn. The UK participation in its preparation was entrusted by Technical Committee GEL/15, Insulating materials, to Subcommittee GEL/15/3/5, Sleevings, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary
5、. From 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-refe
6、rences The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Cata
7、logue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the te
8、xt; present to the responsible international/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 co
9、ver, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 60684-3-121 to 124 NORME EUROPENNE EUROPISCHE NO
10、RM October 2001 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 2001 CENELEC - All rights of exploitation in any form and by any
11、 means reserved worldwide for CENELEC members. Ref. No. EN 60684-3-121 to 124:2001 E ICS 29.035.20 Supersedes HD 523.3.121 Part 2 : Methods of test (IEC 60684-2); Part 3 : Specification requirements for individual types of sleeving (IEC 60684-3). This standard contains four of the sheets comprising
12、part 3 as follows: Sheet 121: Extruded silicone sleeving General purpose, flame retarded Sheet 122: Extruded silicone sleeving General purpose, flame retarded, low volatile content Sheet 123: Extruded silicone sleeving General purpose Sheet 124: Extruded silicone sleeving General purpose, low volati
13、le content. Page3 EN606843121to124:2001FLEXIBLE INSULATING SLEEVING Part 3: Specifications for individual types of sleeving Sheets 121 to 124: Extruded silicone sleeving 1 Scope These sheets of IEC 60684-3 gives the requirements for four types of non-heatshrinkable sleeving, extruded from silicone e
14、lastomer. These sleevings are normally available with internal diameter up to 25 mm and in a range of wall thicknesses between 0,1 mm and 2,0 mm. National standards may select a restricted list of preferred combinations of internal diameter and wall thickness. These sleevings are normally available
15、in the following opaque colours: black, brown, red, orange, yellow, green, blue, violet, grey, white and pink. They are also available in a translucent form. Sizes or colours other than those specifically listed in this standard may be available as custom items. These items shall be considered to co
16、mply with this standard if they comply with the other property requirements listed in table 2. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60684. For dated references, subsequent amendmen
17、ts to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 60684 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of
18、the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60684-1:1980, Specification for flexible insulating sleeving Part 1: Definitions and general requirements IEC 60684-2:1997, Specification for flexible insulating slee
19、ving Part 2: Methods of test IEC 60757:1983, Code for designation of colours Page4 EN606843121to124:20013 Designation The sleeving shall be identified by the following designation: Sleeving IEC 60684 3 121- 2,5 / 0,5 GN Description IEC publication Number Part Sheet Size (nominal bore and wall thickn
20、ess, in millimetres) Colour Any abbreviation used for colour shall comply with IEC 60757, where applicable. Non-standard colours shall be written out in full. The abbreviation for translucent shall be “TL” 4 Requirements In addition to the general requirements given in IEC 60684-1, the sleeving shal
21、l comply with the requirements in tables 1, 2 and 3. 5 Product qualification Product qualification shall normally be based on results from 8 mm internal diameter black sleeving. Colour fastness to light shall be qualified for all colours. Page5 EN606843121to124:2001Table 1 Nominal internal diameter
22、Nominal internal diameter mm Tolerance on internal diameter mm 0,3 +0,10 0,05 0,5 0,8 +0,15 0,10 1,0 1,5 2,0 +0,20 0,15 2,5 3 4 5 0,20 6 8 10 12 0,25 16 20 25 0,50 NOTE 1 Measurements shall be made to the nearest 0,05 mm. NOTE 2 See table 3 for wall thicknesses. Page6 EN606843121to124:2001Table 2 Pr
23、operty requirements Property IEC 60684-2 Clause or subclause Units Max. or min. Requirements Remarks Dimensions 3 mm Tables 1 and 3 Volatile content (sheets 122 and 124 only) 12 % Max. 1,0 Bending after heating 13 There shall be no cracking. The original colour shall still be clearly recognisable. T
24、est temperature: 200 C 5 K. The mandrel diameter shall be twice the external diameter of the sleeve Bending at low temperature 14 There shall be no cracking. Test temperature 60 C or lower. For nominal internal diameters of 8 mm, and below use a mandrel 18 to 20 times the nominal wall thickness. For
25、 nominal internal diameters of above 8 mm, use strips and a mandrel of 8 to 10 times the nominal wall thickness Tensile strength 19.1 and 19.2 MPa Min. 5,5 Jaw separation: (500 25) mm/min Elongation at break 19.1 and 19.2 % Min. 200 Jaw separation: (500 25) mm/min Breakdown voltage 21 kV Min. See ta
26、ble 3 Volume resistivity at room temperature after damp heat 23.4.2 23.4.4 M Min. 1 10 11 1 10 10 Flame propagation (sheets 121 and 122 only) 26 Method A s Max. 60 In addition the indicator flag shall not be burned away. The cotton shall not be ignited. Electrolytic corrosion 31 Max. Negative pole 1
27、, 4 Positive pole A/B Visual method Thermal endurance 37 Min. 180 The end point shall be 50 % of the initial value of tensile strength Page7 EN606843121to124:2001Table 3 Requirements for wall thickness and breakdown voltage The breakdown voltage shall be determined by any of the methods given in 21.
28、2, 21.3, 21.4 and 21.5 of IEC 60684-2. The central value shall comply with the minimum value in the table below. The rate of application of the voltage shall be either 500 V/s or such that the required value is reached within 10 s to 20 s. Wall thickness mm Breakdown voltage (min.) kV Nominal Tolera
29、nce Room temperature 180 C 3 K 0,1* +0,10 0 1,3 1,0 0,2 0,4 0,5 0,7 1,0 +0,15 0,05 2,4 4,7 5,5 8,0 10,7 1,8 3,5 4,0 6,0 8,0 1,5 2,0 0,20 16,0 20,0 12,0 15,0 * This wall thickness is normally only available for sleevings of nominal internal diameter up to and including 1 mm. _ Page8 EN606843121to124:
30、2001Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text
31、 and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies
32、 (including amendments). NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60684-1 1980 Specification for flexible insulating sleeving Part 1: Definitions and general requirements EN
33、 60684-1 1995 IEC 60684-2 1997 Part 2: Methods of test EN 60684-2 1997 IEC 60757 1983 Code for designation of colours HD 457 S1 1985 Page9 EN606843121to124:2001BS EN 60684-3-121 to 124:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national bod
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