BS 7655-0-2006 Specification for insulating and sheathing materials for cables - General introduction《电缆用绝缘和铠装材料规范 一般说明》.pdf

1、BS 7655-0:2006Specification for insulating and sheathing materials for cablesPart 0: General introductionICS 29.035.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPublishing and copyright informationThe BSI copyright notice displayed in this document indicate

2、s when the document was last issued. BSI 2006ISBN 0 580 48368 1The following BSI references relate to the work on this standard:Committee reference GEL/20/17Publication historyFirst published, April 1993Second edition, October 1997Third edition, July 2006Amendments issued since publicationAmd. no. D

3、ate Text affectedBS 7655-0:2006 BSI 2006 iBS 7655-0:2006ContentsForeword iii1 Scope 12 Normative references 13 Terms and definitions 24 Testing 25 Requirements 3AnnexAnnex A (informative) List of parts of BS EN 50363 and ofcompounds transferred from BS 7655 to BS EN 50363 6Bibliography 7List of tabl

4、esTable 1 Titles or status of parts and sections of BS 7655 3Table 2 Test methods 5Table A.1 Parts of BS EN 50363 and compounds transferred from BS 7655 to BS EN 50363 6Summary of pagesThis document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 7 and a back cover.ii BSI 2

5、006 This page deliberately left blankBS 7655-0:2006 BSI 2006 iiiBS 7655-0:2006ForewordPublishing informationThis part of BS 7655 is published by BSI and came into effect on 31 July 2006. It was prepared by Subcommittee GEL/20/17 Low voltage cables, under the authority of Technical Committee GEL/20 E

6、lectric cables.SupersessionThis part of BS 7655 supersedes BS 7655-0:1997, which is withdrawn.Relationship with other publicationsBS 7655-0 provides a general introduction to the series of sections that make up BS 7655, together with a list of those sections currently published. In addition BS 7655-

7、0 includes a complete list of the test methods which are called up in the sections of BS 7655, with a dated reference to the most recent edition of the standard in which each test method is given. The sections of BS 7655 give test methods but do not refer to a particular edition of the relevant stan

8、dard. This information is given only in BS 7655-0, which needs to be consulted for each test.BS 7655-0 is normative.Information about this documentThis new edition of BS 7655-0 incorporates the following changes to bring the standard up to date. It does not represent a full review or revision of the

9、 standard, which will be undertaken in due course.a) The harmonized materials given in CENELEC Harmonization documents HD 21 and HD 22 have been deleted from Table 1. These materials are now given in the BS EN 50363 series, and the sections of BS 7655 in which they were specified have been amended o

10、r withdrawn. A new Annex A has been added to BS 7655-0 giving a list of the compounds previously in sections of BS 7655 which are now in the BS EN 50363 series.b) Material type EI 2 has been deleted from Table 1. This material has been replaced by material type EM 9 which is specified in BS EN 50363

11、-2-1, and BS 7655-2.2 has been withdrawn.c) The materials given in BS 7655-1.6, -4.3 and -8.2 have been deleted from Table 1 as these materials are no longer required nationally. BS 7655-1.6, -4.3 and -8.2 have also been withdrawn.d) Details of non-harmonized materials, which are given in the remain

12、ing sections of BS 7655 and which are specified in national product specifications for use in the UK, have been updated.Hazard warningsWARNING. This British Standard calls for the use of procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical sui

13、tability and does not absolve the user from legal obligations relating to health and safety at any stage.Use of this documentIt has been assumed in the preparation of this British Standard that the execution of its provisions will be entrusted to appropriately qualified and experienced people, for w

14、hose use it has been produced.iv BSI 2006BS 7655-0:2006Contractual and legal considerationsThis 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 cannot confer immunity from legal o

15、bligations. BSI 2006 1BS 7655-0:20061 ScopeThis Part of BS 7655 gives a general introduction to BS 7655, specifying those elements that are common to the subordinate parts and sections which are issued separately. It also includes a list of the test methods called up in the sections of BS 7655 with

16、references to the current editions in which the relevant test methods are given.The subordinate parts and sections of BS 7655 that require this part of BS 7655 to be read with them are listed in Table 1. NOTE Annex A shows a list of those compounds previously in BS 7655 but now given in BS EN 50363.

17、2 Normative referencesThe following 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.BS 903-A26:1995 including am

18、endment 1:2001, Physical testing of rubber Part A26: Method for determination of hardness (hardness between 10 IRHD and 100 IRHD)BS 6469-99.1:1992 including amendments 1:1994, 2:1997, and 3:2006, Common test methods for insulating and sheathing materials of electric cables Part 99: Test methods used

19、 in the United Kingdom but not specified in BS EN 60811 Section 99.1: Non-electrical testsBS 6469-99.2:1992 including amendment 1:2006, Common test methods for insulating and sheathing materials of electric cables Part 99: Test methods used in the United Kingdom but notspecified in BS EN 60811 Secti

20、on 99.2: Electrical testsBS EN 50267-2-1:1999, Common test methods for cables under fire conditions Tests on gases evolved during combustion of material from cables Part 2-1: Procedures Determination of the amount of halogen acid gasBS EN 50396:2005, Non-electrical test methods for low voltage energ

21、y cablesBS EN 60811-1-1:1995 including amendment 1:2002, Insulating and sheathing materials of electric and optical cables Common test methods Part 1-1: General application Measurement of thickness and overall dimensions Tests for determining the mechanical propertiesBS EN 60811-1-2:1995 including a

22、mendment 1:2002, Common test methods for insulating and sheathing materials of electric and optical cables Part 1-2: General application Thermal ageing methodsBS EN 60811-1-3:1995 including amendment 1:2002, Insulating and sheathing materials of electric and optical cables Common test methods Part 1

23、-3: General application Methods for determining the density Water absorption tests Shrinkage testBS EN 60811-1-4:1995 including amendment 1:2002, Insulating and sheathing materials of electric cables Common test methods Part 1-4: General application Tests at low temperatureBS 7655-0:20062 BSI 2006BS

24、 EN 60811-2-1:1998 including amendment 1:2002, Insulating and sheathing materials of electric and optical cables Common test methods Part 2-1: Methods specific to elastomeric compounds Ozone resistance, hot set and mineral oil immersion testsBS EN 60811-3-1:1995 including amendments 1:1997 and 2:200

25、2, Insulating and sheathing materials of electric cables Common test methods Part 3: Methods specific to PVC compounds Section 3.1: Pressure test at high temperature Tests for resistance to crackingBS EN 60811-3-2:1995 including amendment 2:2004, Insulating and sheathing materials of electric cables

26、 Common test methods Part 3: Methods specific to PVC compounds Section 2: Loss of mass test Thermal stability testBS EN 60811-4-1:2004, Insulating and sheathing materials of electric and optical cables Common test methods Part 4-1: Methods specific to polyethylene and polypropylene compounds Resista

27、nce to environmental stress cracking Measurement of the melt flow index Carbon black and/or mineral filler content measurement in polyethylene by direct combustion Measurement of carbon black content by thermogravimetric analysis (TGA) Assessment of carbon black content in polyethylene using a micro

28、scope3 Terms and definitionsFor the purposes of the parts and sections of BS 7655 the following terms and definitions apply.3.1 variationdifference between the median value after ageing and the median value without ageing expressed as a percentage of the latter3.2 median valuewhen several test resul

29、ts have been obtained and ordered in an increasing or decreasing succession the median is the middle value if the number of available values is odd and is the mean of the two middle values if the number is even4 Testing 4.1 GeneralThe test methods called up in the particular sections of BS 7655 are

30、listed in Table 2.4.2 Sampling4.2.1 InsulationUnless otherwise stated in the British Standard for the particular cable, the tests on insulation shall be made on samples from each core if the cable has one, two or three cores and on samples from three cores (of differing colours if any) if the cable

31、has more than three cores. The samples shall be taken not less than 16 h after extrusion for thermoplastic materials and not less than 16 h after extrusion and cross-linking for thermosetting materials. BSI 2006 3BS 7655-0:20064.2.2 SheathSamples shall be taken not less than 16 h after extrusion for

32、 thermoplastic materials and not less than 16 h after extrusion and cross-linking for thermosetting materials.4.3 Ambient temperatureUnless otherwise specified in the details for the particular test, tests shall be made at an ambient temperature of (20 15) C. 5 RequirementsThe requirements for the v

33、arious types of compound are such that conformity can be checked by testing samples taken from finished cable. Table 1 Titles or status of parts and sections of BS 7655Part/Section no. Title/status Compounds includedPart 0 General introductionPart 1 Cross-linked elastomeric insulating compoundsSecti

34、on 1.1 Withdrawn Section 1.2 General 90 C application GP 4, GP 5, GP 6, GP 7Section 1.3 XLPE GP 8Section 1.4 Oil resisting types OR 1Section 1.5 Flame retardant composites FR 1, FR 2Section 1.6 Withdrawn Part 2 Cross-linked elastomeric sheathing compoundsSection 2.1 Withdrawn Section 2.2 Withdrawn S

35、ection 2.3 General application RS 2, RS 3, RS 4, RS 6Section 2.4 Welding cable covering RS 5Section 2.5 Spare Section 2.6 Sheathing compounds for ships wiring and offshore applicationsSW 1, SW 2, SW 3, SW 4Part 3 PVC insulating compoundsSection 3.1 Withdrawn Section 3.2 Hard grade types Type 2Part 4

36、 PVC sheathing compoundsSection 4.1 Withdrawn Section 4.2 General application Type 5, Type 6, Type 9, Type 10Section 4.3 Withdrawn BS 7655-0:20064 BSI 2006Table 1 Titles or status of parts and sections of BS 7655 (continued)Part/Section no. Title/status Compounds includedPart 5 Cross-linked insulati

37、ng compounds having low emission of corrosive gases, and suitable for use in cables having low emission of smoke when affected by fireSection 5.1 Withdrawn Part 6 Thermoplastic sheathing compounds having low emission of corrosive gases, and suitable for use in cables having low emission of smoke whe

38、n affected by fireSection 6.1 General application thermoplastic types LTS 1, LTS 2, LTS 3, LTS 4Part 7A)Spare Part 8 Cross-linked sheathing compounds having low emission of corrosive gases, and suitable for use in cables having low emission of smoke when affected by fireSection 8.1 Withdrawn Section

39、 8.2 Withdrawn Part 9A)Spare Part 10 Polyethylene sheathing compoundsSection 10.1 Thermoplastic medium density polyethylene (MDPE) sheathing compoundTS 2Part 11 Miscellaneous insulating compoundsSection 11.1 Withdrawn Part 12 Miscellaneous sheathing compoundsSection 12.1 Withdrawn Section 12.2 Withd

40、rawn A) For future use. BSI 2006 5BS 7655-0:2006Table 2 Test methodsTest Method (given in BS EN 60811 unless otherwise stated)Section ClauseInsulation SheathProperties in the state as manufactured: tensile strength and elongation at break1-1:1995 9.1 9.2Properties after ageing in air oven: tensile s

41、trength and elongation at break1-2:1995 8.1 8.1Properties after ageing in air bomb: tensile strength and elongation at break1-2:1995 8.2 8.2Water absorption (gravimetric) 1-3:1995 9.2 Bending test at low temperature 1-4:1995 8.1 8.2Elongation test at low temperature 1-4:1995 8.3 8.4Impact test at lo

42、w temperature 1-4:1995 8.5Ozone resistance test 2-1:1998 8Hot set test 2-1:1998 99Mineral oil immersion test 2-1:1998 10 10Pressure test at high temperature 3-1:1995 8.1 8.2Test for resistance to cracking 3-1:1995 9.1 9.2Loss of mass test 3-2:1995 8.1 8.2Carbon black content 4-1:2004 11Test for tear

43、 resistance BS 6469-99.1:1992 9Hot deformation test BS 6469-99.1:1992 10 10Determination of linear swell after ageing in oil BS 6469-99.1:1992 12Alternative ozone resistance test (low concentration)BS EN 50396:2005 8.1.3 Water immersion test on sheath BS 6469-99.1:1992 14Determination of UV stabilit

44、y for MDPE sheath BS 6469-99.1:1992A)5Test for insulation resistance constant (K value) BS 6469-99.2:1992 88Test for power factor and permittivity BS 6469-99.2:1992 9Water absorption determined by the capacitance methodBS 6469-99.2:1992 10 Hardness BS 903-A26:1995Halogen gas emission BS EN 50267-2-1

45、:1999A)It is intended that this test method will be included in a future revision of BS 7870-2.BS 7655-0:20066 BSI 2006Annex A (informative) List of parts of BS EN 50363 and of compounds transferred from BS 7655 to BS EN 50363A list of parts of BS EN 50363 and of the compounds transferred from the B

46、S 7655 series to the BS EN 50363 series is given in Table A.1.Table A.1 Parts of BS EN 50363 and compounds transferred from BS 7655 to BS EN 50363BS EN 50363 part number Title BS 7655 equivalent section numberCompounds now in BS EN 503630 General introduction 1 Cross-linked elastomeric insulating co

47、mpounds 1.1 EI 2, EI 3, EI 4, EI 6, EI 72-1 Cross-linked elastomeric sheathing compounds 2.1 EM 2, EM 3, EM 4, EM 6, EM 7, EM 92-2 Cross-linked elastomeric covering compounds 2.4 EM 53 PVC insulating compounds 3.1 TI 1, TI 2, TI 3, TI 4, TI 54-1 PVC sheathing compounds 4.1 TM 1, TM 2, TM 3, TM 4, TM

48、 54-2 PVC covering compounds 5 Halogen-free, cross-linked insulating compounds 5.1 EI 5, EI 86 Halogen-free, cross-linked sheathing compounds 8.1 EM 8, EM 107 Halogen-free, thermoplastic insulating compounds 8 Halogen-free, thermoplastic sheathing compounds 9-1 Miscellaneous insulating compounds Cro

49、ss-linked polyvinyl chloride (XLPVC)11.1 XI 110-1 Miscellaneous sheathing compounds Cross-linked polyvinyl chloride (XLPVC)12.2 XM 110-2 Miscellaneous sheathing compounds Thermoplastic polyurethane 12.1 TMPU BSI 2006 7BS 7655-0:2006BibliographyBS EN 50363 (all parts), Insulating, sheathing and covering materials for low voltage energy cablesCENELEC HD 21 (all parts), Cables of rated voltages up to and including 450/750 V and having thermoplastic