1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58types of sleeving Sheet 246: Heat-shrinkable polyolefin sleeving, dual wall, not flame retardedThe
2、European Standard EN 60684-3-246:2007 has the status of a British StandardICS 29.035.20Flexible insulating sleeving Part 3: Specifications for individual BRITISH STANDARDBS EN 60684-3-246: 2007BS EN 60684-3-246:2007This British Standard was published under the authority of the Standards Policy and S
3、trategy Committee on 31 May 2007 BSI 2007ISBN 978 0 580 50647 5Amendments issued since publicationAmd. No. Date Commentsrequest to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with
4、a British Standard cannot confer immunity from legal obligations. National forewordThis British Standard was published by BSI. It is the UK implementation of EN 60684-3-246:2007. It is identical with IEC 60684-3-246:2007. It supersedes BS EN 60684-3-246:2002 which is withdrawn.The UK participation i
5、n its preparation was entrusted by Technical Committee GEL/15, Solid electrical insulating materials, to Subcommittee GEL/15/3, Material specifications.A list of organizations represented on this committee can be obtained on EUROPEAN STANDARD EN 60684-3-246 NORME EUROPENNE EUROPISCHE NORM March 2007
6、 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 2007 CENELEC - All rights of exploitation in any form and by any means reserved
7、 worldwide for CENELEC members. Ref. No. EN 60684-3-246:2007 E ICS 29.035.20 Supersedes EN 60684-3-246:2002English version Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving - Sheet 246: Heat-shrinkable polyolefin sleeving, dual wall, not flame retarded (IEC 60684
8、-3-246:2007) Gaines isolantes souples - Partie 3: Spcifications pour types particuliers de gaines - Feuille 246: Gaines thermortractables en polyolfine, double paroi, non retardes la flamme (CEI 60684-3-246:2007) Isolierschluche - Teil 3: Anforderungen fr einzelne Schlauchtypen - Blatt 246: Wrmeschr
9、umpfende Polyolefinschluche mit Innenbeschichtung, nicht flammwidrig (IEC 60684-3-246:2007) This European Standard was approved by CENELEC on 2007-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
10、 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 Standard exists in three official versions (English, French, Ger
11、man). 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 electrotechnical committees of Austria, Belgium, Bulgari
12、a, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 60684-3-246:2007 2
13、Foreword The text of document 15/358/FDIS, future edition 3 of IEC 60684-3-246, prepared by IEC TC 15, Solid electrical insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60684-3-246 on 2007-03-01. This European Standard supersedes EN 60684-3-246:2
14、002. The major technical changes with regard to EN 60684-3-246:2002 concern a better alignment with existing national specifications. The following 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
15、 (dop) 2007-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-03-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60684-3-246:2007 was approved by CENELEC as a European Standard without any
16、modification. _ 3 EN 60684-3-246:2007 CONTENTS INTRODUCTION 4 1 Scope 5 2 Normative references .5 3 Designation6 4 Conditions of test .6 5 Requirements.6 6 Sleeving conformance 6 7 Sealing performance test method .6 Figure 1 Clamping tool for sealing performance test.7 Table 1 Dimensional requiremen
17、ts .7 Table 2 Property requirements.8 Table 3 Additional property requirements .9 Table 4 Requirements for breakdown voltage.9 Table 5 Resistance to selected fluids .10 Annex ZA (normative) Normative references to international publications with their corresponding European publications .11 EN 60684
18、-3-246:2007 4 INTRODUCTION This International 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 60684-1) Part 2: Methods of test (IEC 60684-2) Part 3: Specifications
19、 for individual types of sleeving (IEC 60684-3) This standard comprises one of the sheets of Part 3 as follows: Sheet 246: Heat-shrinkable polyolefin sleeving, dual wall, non-flame retarded 5 EN 60684-3-246:2007 FLEXIBLE INSULATING SLEEVING Part 3: Specifications for individual types of sleeving She
20、et 246: Heat-shrinkable polyolefin sleeving, dual wall, non-flame retarded 1 Scope This part of IEC 60684 defines requirements for dual wall, non-flame retarded, heat shrinkable, polyolefin sleeving. This sleeving has been found suitable for use up to 110 C. The sleeving consists of an outer layer m
21、ade of a semi-rigid cross-linked material. The inner layer is a substantially non-cross-linked polyolefin that flows and fuses during the shrinkage process to provide a seal. It is normally offered for sale with an internal diameter up to 25 mm in the following colours: black, white, red, yellow, bl
22、ue and translucent. Sizes or colours other than those listed in this standard may be available as custom items. These items are considered to comply with this standard if they comply with the property requirements listed in Tables 2, 3, 4 and 5, excluding dimensions. Materials which conform to this
23、specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. 2 Normative references The foll
24、owing referenced documents are indispensable for the 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 60684-1:2003, Flexible insulating sleeving Part 1: De
25、finitions and general requirements IEC 60684-2:1997, Flexible insulating sleeving Part 2: Methods of test1)Amendment 1 (2003) Amendment 2 (2005) IEC 60757:1983, Code for designation of colours ISO 1817:2005, Rubber, vulcanized Determination of the effect of liquids _ 1)A consolidated edition 2.1 exi
26、sts, including IEC 60684-2:1997 and its Amendment 1 (2003). EN 60684-3-246:2007 6 3 Designation The sleeving shall be identified by the following designation, as shown in the following example: Description IEC publication number IEC part number IEC sheet number Size (expanded/ recovered internal dia
27、meter, in millimetres) Colour Sleeving - IEC 60684 - 3 -246 -12,7/5,0 - NC NOTE NC is used for “Natural colour” / “No colour pigmentation”. Any abbreviation of colour shall comply with IEC 60757. Where no abbreviation is given, the colour shall be written in full. 4 Conditions of test Unless otherwi
28、se specified, the sleeving shall be shrunk in a forced air circulation oven for (10 1) min at 200 C 5 K prior to testing. 5 Requirements In addition to the general requirements given in IEC 60684-1, the sleeving shall comply with the requirements in Tables 1, 2, 3, 4 and 5. 6 Sleeving conformance Co
29、nformance to the requirements of this specification shall normally be based on the results from 12,7 mm/5,0 mm black sleeving. The colour fastness to light shall be determined for all colours. 7 Sealing performance test method Condition a nominal 150 mm length of sleeving at 200 C 5 K for (5 1) min
30、and condition a pair of pliers (clamping tool, see Figure 1) at the same temperature for at least 10 min. Within 5 s after removal from the oven, grip approximately 6 mm of one end of the sleeving with the pliers with sufficient pressure so that the inner surfaces of the sleeving are in full contact
31、. Hold the pressure for at least 40 s, then release the pressure and condition the sleeving at a temperature of 23 C 2 K for at least 10 min. Submerge the sealed end of the sleeving in at least 25 mm of water and pressurize the open end with at least 20,7 kPa of air pressure for at least 5 s. Observ
32、e whether any air bubbles escape from the sealed end of the sleeving. 7 EN 60684-3-246:2007 Handles PivotFlat face clamping jaws Typical clamping toolIEC 286/07 Figure 1 Clamping tool for sealing performance test Table 1 Dimensional requirements Internal diameter mm Size code a)Expanded min. Recover
33、ed c)max. Total recovered wall thickness b)mm 3,2/0,6 3,2 0,6 0,95 0,20 4,7/1,5 4,7 1,5 1,10 0,20 6,4/2,0 6,4 2,0 1,20 0,25 9,5/3,4 9,5 3,4 1,30 0,25 12,7/5,0 12,7 5,0 1,40 0,25 19,1/8,0 19,1 8,0 1,65 0,25 25,4/10,2 25,4 10,2 1,90 0,25 7,6/1,3 7,6 1,3 2,50 0,25 a) These sizes are based on past indus
34、try practices for this type of sleeving.b)The ratio of the inner wall thickness to the total wall thickness will typically lie between 0,3 and 0,7 . c)In those cases where the inner wall distorts or flows during recovery, it may not be possible to determine the recovered inside diameter accurately.
35、In such cases, the sleeving may be recovered over a mandrel or gauge of the specified diameter for the size being measured, and then shall be examined for complete contact with the mandrel or plug gauge to establish compliance with the requirements for the recovered diameter. EN 60684-3-246:2007 8 T
36、able 2 Property requirements Property IEC 60684-2 clause or subclause Units Max. or min. Requirements Remarks Dimensions internal diameter wall thickness 3 3.1.2 3.3.2 mm mm Table 1 Table 1 Density 4 g/cm3Max. 1,0 Test specimens shall be cut from full sections of sleeving Heat shock 6 No observable
37、dripping, cracking or flowing of the outer wall Heat at 250 C 5 K Longitudinal change 9 % Max. +1 10 Heat the expanded sleeving at 200 C 5 K for (10 1) min. The final measurement shall be on the outer wall only Brittleness temperature 15 No visible cracking or breaking Test at 40 C 3 K after conditi
38、oning at the same temperature. The test shall be carried out on specimens taken from sleeving in the expanded (as supplied) form Dimensional stability on storage 16 The dimensions shall be as specified in Table 1 Tensile strength Elongation at break 19.1 and 19.2 19.1 and 19.2 MPa % Min. Min. 10 200
39、 Test in the expanded form. Use a jaw separation rate of 100 mm/min. For internal diameters 6,5 mm, use sleeving samples for testing. At internal nominal diameters 6,5 mm, use dumb-bell samples cut from sleeving. The cross-sectional area shall be calculated based on the jacket only Secant modulus at
40、 2 % elongation 19.4 MPa Min. 175 Test in the expanded form. The cross-sectional area shall be calculated based on the jacket only Breakdown voltage 21 kV Min. See Table 4 Volume resistivity at room temperature 23 23.4.2 m Min. 1012Copper corrosion 33 % Max. None above the allowable 8 % Heat the spe
41、cimens for (16 0,5) h at 130 C 2 K 9 EN 60684-3-246:2007 Table 2 (continued) Property IEC 60684-2clause or subclause Units Max. or min. Requirements Remarks Colour fastness to light 34 The colour standard contrast between the exposed and unexposed parts of the specimen shall be equal to or less than
42、 that of the fastness standard Fastness standard No. 5 Resistance to selected fluids Tensile strength Elongation at break 36 19.1 and 19.219.1 and 19.2MPa % Min. Min. 7 200 Test in the expanded form. Use the fluids and test temperatures specified in Table 5. The cross-sectional area shall be calcula
43、ted based on the jacket only Heat ageing Elongation at break 39 19.1 and 19.2% Min. 100 Heat at 175 C 3 K Water absorption 40 % Max. 0,2 Test in the expanded form Table 3 Additional property requirements Property IEC 60684-2 clause or subclause Units Max. or min. Requirements Remarks Sealing perform
44、ance (see Clause 7 below) No observed air bubbles escape from the sealed end of the sleeving The breakdown voltage shall be determined by any of the methods described in 21.2, 21.3 or 21.4 of IEC 60684-2. The central value shall comply with the minimum value in Table 4. The rate of application of th
45、e voltage shall be 500 V/s. Table 4 Requirements for breakdown voltage Nominal recovered wall thickness mm Breakdown voltage min. kV 0,95 19 1,10 22 1,20 24 1,30 26 1,40 28 1,65 33 1,90 38 2,50 50 For non-standard wall thicknesses, the breakdown voltage shall be at least that of the next smaller sta
46、ndard wall EN 60684-3-246:2007 10 thickness. For wall thicknesses smaller than 0,95 mm, the electric strength shall be at least 20,0 kV/mm. Table 5 Resistance to selected fluids Fluids Type Standard or symbol Immersion temperature C 2 K Fuel Gasoline ISO 1817 Liquid B 23 Oil Mineral based ISO 1817 O
47、il No. 2 23 Oil Synthetic based ISO 1817 Liquid 101 23 Deicing fluid Aircraft deicer Ethylene glycol 80 %, water 20 % 23 Other fluids and/or temperatures may be specified for customers with specific needs. These additional fluids and/or temperatures shall be applicable when incorporated into agreeme
48、nts between the supplier and customer. _ 11 EN 60684-3-246:2007 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only
49、 the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 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 2003 Flexible insu
