BS 7919-2001 Electric cables-Flexible cables.pdf

1、BRITISH STANDARD BS 7919:2001 Incorporating Amendments Nos. 1 and 2 Electric cables Flexible cables rated up to 450/750 V, for use with appliances and equipment intended for industrial and similar environments ICS 29.060.20 BS 7919:2001 This British Standard, having been prepared under the direction

2、 of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 February 2001 BSI 25 February 2004 The following BSI references relate to the work on this British Standard: Committee reference GEL/20/1 Draft for comment 00/240543 DC

3、 ISBN 0 580 33260 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee GEL/20, Electric cables, to Subcommittee GEL/20/1, Wiring cables, below 1 kV, upon which the following bodies were represented: Association of Consulting

4、 Engineers Association of Manufacturers Allied to the Electrical and Electronic Industry (BEAMA Ltd.) British Approvals Service for Cables British Cables Association British Plastics Federation British Retail Consortium Chartered Institution of Building Services Engineers Department of Trade and Ind

5、ustry (Consumer Safety Unit, CA Division) Electrical Installation Equipment Manufacturers Association Electricity Association Energy Industries Council Engineering Industries Association ERA Technology Ltd. Institution of Incorporated Engineers Lift and Escalator Industry Association London Undergro

6、und Ltd. Transmission and Distribution Association (BEAMA Ltd.) Amendments issued since publication Amd. No. Date Comments 13777 2 October 2002 Addition of supersession detail to foreword (also see paragraph 2 of foreword) 14202 25 February 2004 See forewordBS 7919:2001 BSI 25 February 2004 i Conten

7、ts Page Committees responsible Inside front cover Foreword iv 1S c o p e 1 2 Normative references 2 3T e r m s a n d d e f i n i t i o n s 3 4 Voltage designation 4 5G e n e r a l 4 6 Flexible cables with thermosetting insulation 6 7 Flexible cables with thermoplastic insulation 14 Annex A (informat

8、ive) Guide to use of insulated flexible cables 51 Annex B (informative) Guidance on procedure for routine tests on rubber and PVC insulated flexible cables of rated voltages U 0 /U up to 450/750 V 51 Annex C (normative) Electrical tests 54 Annex D (normative) Mechanical test Two pulley flexing test

9、58 Annex E (normative) Procedure for checking the efficacy of the spark testing method and equipment 61 Annex F (normative) Solderability test for plain conductors 63 Annex G (normative) Compatibility test 64 Annex H Spare 64 Annex I (normative) Water immersion tests for H07RN8-F flexible cables 64

10、Annex J Spare 66 Annex K (normative) Measurement of thickness 66 Bibliography 69 Figure D.1 Flexing apparatus 59 Figure E.1 Preparation of core for spark test equipment check: removal of insulation 62 Figure E.2 Preparation of core for spark test equipment check: covering with tape 62 Figure K.1 Mea

11、surement of sheath thickness 68 Table 1 List of tests applicable to the flexible cables specified in Clause 6 12 Table 2 Schedule of tests 13 Table 3 Compatibility requirements for the cables specified in Clause 6 14 Table 4 List of tests applicable to the flexible cables specified in Clause 7 17 Ta

12、ble 5 Schedule of tests 18 Table 6 Compatibility requirements for flexible cables specified in Clause 7 19 Table 7 Spare 19 Table 8 Spare 19 Table 9 Spare 19 Table 10 Ordinary duty rubber insulated and sheathed flexible cable, 3-core and 4-core, 300/500 V 20 Table 11 Ordinary duty heat resisting 90

13、C EPR or equivalent synthetic elastomer insulated and sheathed flexible cable, 3-core and 4-core, 300/500 V 21 Table 12 Heavy duty heat resisting 90 C EPR or equivalent synthetic elastomer insulated and sheathed flexible cable, single-core, circular twin, 3-core, 4-core and 5-core, 450/750 V 22BS 79

14、19:2001 ii BSI 25 February 2004 Page Table 13 Ordinary duty heat resisting 110C EVA or equivalent synthetic elastomer insulated and sheathed flexible cable, parallel twin, circular twin, 3-core, 4-core and 5-core, 300/500 V 25 Table 14 Heavy duty rubber insulated, PCP or equivalent synthetic elastom

15、er sheathed flexible cable, single-core, circular twin, 3-core, 4-core and 5-core, 450/750 V 26 Table 15 Heavy duty rubber insulated, PCP or equivalent synthetic elastomer sheathed flexible cable, 6-core, 12-core, 18-core, 24-core and 36-core, 450/750 V 29 Table 16 Heavy duty heat resisting 90 C EPR

16、 or equivalent synthetic elastomer insulated and CSP or equivalent synthetic elastomer sheathed flexible cable, single-core, circular twin, 3-core, 4-core and 5-core, 450/750 V 30 Table 17 Heavy duty heat resisting 90C EPR or equivalent synthetic elastomer insulated and CSP or equivalent synthetic e

17、lastomer sheathed flexible cable, 6-core, 12-core, 18-core, 24-core and 36-core, 450/750 V 33 Table 18 Heavy duty cross-linked polymer insulated and sheathed flexible cable having low emission of smoke and corrosive gases, single-core, circular twin, 3-core, 4-core and 5-core, 450/750 V 34 Table 19

18、Heavy duty cross-linked polymer insulated and sheathed flexible cable having low emission of smoke and corrosive gases, 6-core, 12-core, 18-core, 24-core and 36-core, 450/750 V 37 Table 20 Heavy duty water resisting rubber insulated, PCP or equivalent synthetic elastomer sheathed flexible cable, sin

19、gle-core, circular twin, 3-core, 4-core and 5-core, 450/750 V 38 Table 21 Heavy duty water resisting rubber insulated, PCP or equivalent synthetic elastomer sheathed flexible cable, 6-core, 12-core, 18-core, 24-core and 36-core, 450/750 V 41 Table 22 Ordinary duty heat resisting 180C silicone rubber

20、 insulated and sheathed flexible cable, circular twin, 3-core, 4-core and 5-core, 300/500 V 42 Table 23 Ordinary duty heat resisting 90C EPR or equivalent synthetic elastomer insulated and thermoplastic polyurethane sheathed flexible cable, circular twin, 3-core, 4-core and 5-core, 300/500 V 43 Tabl

21、e 24 Heavy duty heat resisting 90C EPR or equivalent synthetic elastomer insulated and thermoplastic polyurethane sheathed flexible cable, circular twin, 3-core, 4-core and 5-core, 450/750 V 44 Table 25 Spare 45 Table 26 Spare 45 Table 27 Spare 45 Table 28 Spare 45 Table 29 Spare 45 Table 30 Spare 4

22、5 Table 31 Spare 45 Table 32 Spare 45 Table 33 Spare 45 Table 34 Spare 45 Table 35 Spare 45 Table 36 Spare 45 Table 37 Spare 45 Table 38 Spare 45 Table 39 Spare 45 Table 40 Ordinary duty PVC insulated and sheathed flexible cable, circular twin, 3-core, 4-core and 5-core, 300/500 V 45 Table 41 Ordina

23、ry duty 90C PVC insulated and sheathed flexible cable, circular twin, 3-core, 4-core and 5-core, 300/500 V 46BS 7919:2001 BSI 25 February 2004 iii Page Table 42 Ordinary duty PVC insulated and oil resisting PVC sheathed flexible cable, circular twin, 3-core, 4-core and 5-core, 300/500 V 47 Table 43

24、Ordinary duty PVC insulated and oil resisting PVC sheathed flexible cable, 6-core, 7-core, 12-core, 18-core, 27-core, 36-core, 48-core and 60-core, 300/500 V 48 Table 44 Ordinary duty low temperature PVC insulated and sheathed flexible cable, parallel twin, circular twin, 3-core, 4-core and 5-core,

25、300/500 V 50 Table B.1 Spark test voltage 51 Table B.2 Insulation test voltage 52 Table B.3 Temperature correction factors 53 Table C.1 Summary of electrical tests for cables with thermosetting insulation specified in Clause 6 54 Table C.2 Summary of electrical tests for cables with thermoplastic in

26、sulation specified in Clause 7 55 Table D.1 Mass of weights, diameter of pulley wheels and current loading for cables with thermoplastic insulation and sheath 60 Table D.2 Mass of weights, diameter of pulley wheels and current loading for cables with thermosetting insulation and sheath 61 Table I.1

27、Tensile strength and elongation at break after water immersion 66BS 7919:2001 iv BSI 25 February 2004 Foreword This British Standard has been prepared by Subcommittee GEL/20/1. It specifies requirements for flexible cables for industrial and similar environments. It incorporates cables specified in

28、HD 21.12 and HD 21.13, and in HD 22.10, HD 22.11, HD 22.12, HD 22.13, HD 22.15 and HD 22.16. BS 7919 complements BS 6500:2000 which specifies requirements for flexible cords for domestic and similar environments. Together with BS 6500:2000, BS 6004:2000 and BS 6007:2000, it supersedes BS 6141:1991 w

29、hich is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Tags indicating changes to text carry the number of the amendment. For example, text altered by amendment no. 1 is indicated by !“. Amendment No. 2:2004 implements the changes to t

30、he identification of cores by colours, in accordance with HD 308 S2. The principal identification colours are now: Single phase Green-and-yellow (Earth); blue (Neutral); brown (Live). Three phase Green-and-yellow (Earth); blue (Neutral); brown, black, grey (Live). Users should ensure that any interc

31、onnection between cables with these new colours and those with the pre-existing ones is carried out safely. BS 7671, as amended in parallel with this standard, gives some guidance in this respect, but does not cover all installation conditions or cable uses. The provisions introduced by amendment No

32、. 2:2004 are effective from 1 st April 2004. The version of this standard incorporating amendment No. 1:2002 remains current until 31 st March 2006. The following cable types have been transferred from other standards: H07RN-F types (previously in BS 6500:1994, Table 8 and in BS 6007:1993, Table 4 a

33、nd Table 4A); H05RR-F types having conductor sizes larger than 2.5 mm 2(previously in BS 6007:1993, Table 3); H05VV-F types having conductor sizes larger than 2.5 mm 2(previously in BS 6500:1994, Table 16). A national type of low temperature 300/500 V PVC cable has also been included. The following

34、national type has been superseded by the H07BN4-F harmonized type: 450/750 V rubber insulated, HOFR sheathed flexible cable (previously in BS 6007:1993, Table 5). Annex C, Annex D, Annex E, Annex F, Annex G, Annex I and Annex K are normative. Annex A and Annex B are informative. Annex H and Annex J

35、are spare. It 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 whose use it has been produced.BS 7919:2001 BSI 25 February 2004 v WARNING. This British Standard calls for the use

36、of substances and/or procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. Certification. Attention is drawn to the certification servi

37、ces (see page 69) of the British Approvals Service for Cables (BASEC) 1) . These services include licensing manufacturers to use BASEC certification marks as independent assurance that cables or cords have been designed and manufactured to appropriate British Standards. BASEC is a subscriber to an a

38、greement in CENELEC whereby cables or cords coming within harmonized code designations and manufactured under a BASEC licence can carry marks acceptable to other signatory countries (CENELEC “Common Marking”). This publication does not purport to include all the necessary provisions of a contract. U

39、sers are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to vi, pages 1 to 69 and a back cover. The BSI copyright notice displ

40、ayed in this document indicates when the document was last issued. 1) British Approvals Service for Cables, 23 Presley Way, Crownhill, Milton Keynes, Buckinghamshire, MK8 0ES.vi blankBS 7919:2001 BSI 25 February 2004 1 1 Scope This British Standard specifies requirements for the construction, dimens

41、ions and mechanical and electrical properties of insulated flexible cables for operation at voltages up to and including 450 V a.c. to earth and 750 V a.c. between conductors, intended for use with appliances and equipment in industrial or similar environments for ordinary or heavy duty. The types o

42、f cables included in this standard are as follows: Table 10 Ordinary duty rubber insulated and sheathed flexible cable, 3-core and 4-core. (H05RR-F) 300/500 V; Table 11 Ordinary duty heat resisting 90C EPR or equivalent synthetic elastomer insulated and sheathed flexible cable, 3-core and 4-core. (H

43、05BB-F) 300/500 V; Table 12 Heavy duty heat resisting 90C EPR or equivalent synthetic elastomer insulated and sheathed flexible cable, single-core, circular twin, 3-core, 4-core and 5-core. (H07BB-F) 450/750 V; Table 13 Ordinary duty heat resisting 110C EVA or equivalent synthetic elastomer insulate

44、d and sheathed flexible cable, parallel twin, circular twin, 3-core, 4-core and 5-core. (H05GG-F, H05GGH2-F) 300/500 V; Table 14 Heavy duty rubber insulated, PCP or equivalent synthetic elastomer sheathed flexible cable, single-core, circular twin, 3-core, 4-core and 5-core. (H07RN-F) 450/750 V; Tab

45、le 15 Heavy duty rubber insulated, PCP or equivalent synthetic elastomer sheathed flexible cable, 6-core, 12-core, 18-core, 24-core and 36-core. (H07RN-F) 450/750 V; Table 16 Heavy duty heat resisting 90C EPR or equivalent synthetic elastomer insulated and CSP or equivalent synthetic elastomer sheat

46、hed flexible cable, single-core, circular twin, 3-core, 4-core and 5-core. (H07BN4-F) 450/750 V; Table 17 Heavy duty heat resisting 90C EPR or equivalent synthetic elastomer insulated and CSP or equivalent synthetic elastomer sheathed flexible cable, 6-core, 12-core, 18-core, 24-core and 36-core. (H

47、07BN4-F) 450/750 V; Table 18 Heavy duty cross-linked polymer insulated and sheathed flexible cable having low emission of smoke and corrosive gases, single-core, circular twin, 3-core, 4-core and 5-core. (H07ZZ-F) 450/750 V; Table 19 Heavy duty cross-linked polymer insulated and sheathed flexible ca

48、ble having low emission of smoke and corrosive gases, 6-core, 12-core, 18-core, 24-core and 36-core. (H07ZZ-F) 450/750 V; Table 20 Heavy duty water resisting rubber insulated, PCP or equivalent synthetic elastomer sheathed flexible cable, single-core, circular twin, 3-core, 4-core and 5-core. (H07RN

49、8-F) 450/750 V; Table 21 Heavy duty water resisting rubber insulated, PCP or equivalent synthetic elastomer sheathed flexible cable, 6-core, 12-core, 18-core, 24-core and 36-core. (H07RN8-F) 450/750 V; Table 22 Ordinary duty heat resisting 180C silicone rubber insulated and sheathed flexible cable, circular twin, 3-core, 4-core and 5-core. (H05SS-F, H05SST-F) 300/500 V; Table 23