BS 7919-2001 Electric cables-Flexible cables.pdf

BRITISH STANDARDBS 7919:2001Incorporating Amendments Nos.1 and 2Electric cables Flexible cables rated up to 450/750 V,for use with appliances and equipment intended for industrial and similar environmentsICS 29.060.20?BS 7919:2001This British Standard,having been prepared under the direction of the Electrotechnical Sector Committee,was published under the authority of the Standards Committee and comes into effect on15 February 2001 BSI 25 February 2004The following BSI references relate to the work on this British Standard:Committee reference GEL/20/1Draft for comment 00/240543 DCISBN 0 580 33260 8Committees responsible for this British StandardThe 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 EngineersAssociation of Manufacturers Allied to the Electrical and Electronic Industry(BEAMA Ltd.)British Approvals Service for CablesBritish Cables AssociationBritish Plastics FederationBritish Retail ConsortiumChartered Institution of Building Services EngineersDepartment of Trade and Industry(Consumer Safety Unit,CA Division)Electrical Installation Equipment Manufacturers AssociationElectricity AssociationEnergy Industries Council Engineering Industries AssociationERA Technology Ltd.Institution of Incorporated EngineersLift and Escalator Industry AssociationLondon Underground Ltd.Transmission and Distribution Association(BEAMA Ltd.)Amendments issued since publicationAmd.No.DateComments137772 October 2002Addition of supersession detail to foreword(also see paragraph 2 of foreword)1420225 February 2004See forewordBS 7919:2001 BSI 25 February 2004iContentsPageCommittees responsibleInside front coverForewordiv1Scope12Normative references23Terms and definitions34Voltage designation45General46Flexible cables with thermosetting insulation67Flexible cables with thermoplastic insulation14Annex A(informative)Guide to use of insulated flexible cables51Annex B(informative)Guidance on procedure for routine tests on rubberand PVC insulated flexible cables of rated voltages U0/U up to 450/750 V51Annex C(normative)Electrical tests54Annex D(normative)Mechanical test Two pulley flexing test58Annex E(normative)Procedure for checking the efficacy of the spark testing method and equipment61Annex F(normative)Solderability test for plain conductors63Annex G(normative)Compatibility test64Annex H Spare64Annex I(normative)Water immersion tests for H07RN8-F flexible cables64Annex J Spare66Annex K(normative)Measurement of thickness66Bibliography69Figure D.1 Flexing apparatus59Figure E.1 Preparation of core for spark test equipment check:removal of insulation62Figure E.2 Preparation of core for spark test equipment check:covering with tape62Figure K.1 Measurement of sheath thickness68Table 1 List of tests applicable to the flexible cables specified in Clause 612Table 2 Schedule of tests13Table 3 Compatibility requirements for the cables specified in Clause 614Table 4 List of tests applicable to the flexible cables specified in Clause 717Table 5 Schedule of tests18Table 6 Compatibility requirements for flexible cables specified in Clause 719Table 7 Spare19Table 8 Spare19Table 9 Spare19Table 10 Ordinary duty rubber insulated and sheathed flexible cable,3-core and 4-core,300/500 V20Table 11 Ordinary duty heat resisting 90 C EPR or equivalent synthetic elastomer insulated and sheathed flexible cable,3-core and 4-core,300/500 V21Table 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 V22BS 7919:2001ii BSI 25 February 2004PageTable 13 Ordinary duty heat resisting 110 C EVA or equivalent synthetic elastomer insulated and sheathed flexible cable,parallel twin,circular twin,3-core,4-core and 5-core,300/500 V25Table 14 Heavy duty rubber insulated,PCP or equivalent synthetic elastomer sheathed flexible cable,single-core,circular twin,3-core,4-core and 5-core,450/750 V26Table 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 V29Table 16 Heavy duty heat resisting 90 C EPR 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 30Table 17 Heavy duty heat resisting 90 C 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,450/750 V33Table 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 V34Table 19 Heavy duty cross-linked polymer insulated and sheathed flexible cable having low emission of smoke and corrosive gases,6-core,12-core,18