EN 13630-5-2003 en Explosives for civil uses - Detonating cords and safety fuses -Part 5 Determination of resistance to abrasion of detonating cords《民用炸药 引爆线和安全引信 第5部分 引爆线的耐磨性测定》.pdf

1、BRITISH STANDARD BS EN 13630-5:2003 Explosives for civil uses Detonating cords and safety fuses Part 5: Determination of resistance to abrasion of detonating cords The European Standard EN 13630-5:2003 has the status of a British Standard ICS 71.100.30 BS EN 13630-5:2003 This British Standard, was p

2、ublished under the authority of the Standards Policy and Strategy Committee on 12 January 2004 BSI 12 January 2004 ISBN 0 580 43232 7 National foreword This British Standard is the official English language version of EN 13630-5:2003. The UK participation in its preparation was entrusted to Technica

3、l Committee CII/61, Explosives for civil uses, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this documen

4、t may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Us

5、ers are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for chang

6、e, 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 cover, an inside front cover, the EN title page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright noti

7、ce displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN136305 December2003 ICS71.100.30 Englishversion ExplosivesforcivilusesDetonatingcordsandsafetyfuses Part5:Determinatio

8、nofresistancetoabrasionofdetonating cords ExplosifsusagecivilCordeauxdtonantsetmchesde sretPartie5:Dterminationdelarsistance labrasiondescordeauxdtonants ExplosivstoffefrzivileZweckeSprengschnreund SicherheitsanzndschnreTeil5:Bestimmungder WiderstandsfhigkeitvonSprengschnrengegenber Abrieb ThisEurop

9、eanStandardwasapprovedbyCENon10November2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtain

10、edonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions.

11、 CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATI

12、ON EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN136305:2003:EEN136305:2003(E) 2 Contents page Foreword3 Introduction .4 1 Scope 5 2 Normativereferences 5 3 Termsanddef

13、initions. .5 4 Apparatus .5 5 Testpieces. .8 6 Procedure .9 7 Testreport . .9 AnnexA (informative) Rangeofapplicabilityofthetestmethod.10 AnnexB (normative) Specificationofgrindingsteel.1 1 AnnexC (informative) Availabilityofabrasivestrips 13 AnnexZA (informative) ClausesofthisEuropeanStandardaddres

14、singessentialrequirementsorother provisionsofEUDirectives 14EN136305:2003(E) 3 Foreword Thisdocument(EN136305:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC321“Explosivesforcivil uses“,thesecretariatofwhichisheldbyAENOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicatio

15、nofanidenticaltextor byendorsement,atthelatestbyJune2004,andconflictingnationalstandardsshallbewithdrawnatthelatestby June2004. ThisdocumenthasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandtheEuropean FreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). Forrelationsh

16、ipwithEUDirective(s),seeinformativeannexZA,whichisanintegralpartofthisdocument. AnnexesAandCareinformative. AnnexBisnormative. ThisEuropeanStandardisoneofaseriesofstandardson ExplosivesforcivilusesDetonatingcordsandsafety fuses. Theotherpartsofthisseriesare: EN136301 Part1:Requirements. EN136302 Par

17、t2:Determinationofthermalstabilityofdetonatingcordsandsafetyfuses. EN136303 Part3:Determinationofsensitivenesstofrictionofthecoreofdetonatingcords. EN136304 Part4:Determinationofsensitivenesstoimpactofdetonatingcords. EN136306 Part6:Measurementoftheresistancetotensionofdetonatingcords. EN136307 Part

18、7:Determinationofreliabilityofinitiationofdetonatingcords. EN136308 Part8:Determinationofresistancetowaterofdetonatingcordsandsafetyfuses EN136309 Part9:Determinationoftransmissionofdetonationfromdetonatingcordtodetonatingcord prEN1363010 Part10:Determinationofinitiatingcapabilityofdetonatingcords E

19、N1363011 Part11:Determinationofvelocityofdetonationofdetonatingcords. EN1363012 Part12:Determinationofburningdurationofsafetyfuses. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepub

20、lic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN136305:2003(E) 4 Introduction Duringusageonsite,thecoatingofdetonatingcordsmaybesubjectedtoabrasiveforceswhendrawnoverrough su

21、rfaces.Thecoatingiswornawaygraduallybyabrasiontocausefailure,whichwillaffecttheperformanceofthe detonatingcord.Thisstandarddealswiththeabilityofdetonatingcordstoresisttheabrasiveforceslikelytobe experiencedinnormaluse.EN136305:2003(E) 5 1Scope ThisEuropeanStandarddescribesthemethodfordeterminingther

22、esistanceofthecoatingofflexibleplastic coateddetonatingcordsandflexiblefibrousoverbraideddetonatingcords,forcivilusetofailurewhensubjectedto abrasion. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedatth

23、eappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamen

24、dments). EN138571:2003, ExplosivesforcivilusesPart1:Terminology. ENISO/IEC17025,Generalrequirementsforthecompetenceoftestingandcalibrationlaboratories(ISO/IEC 17025:1999). 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninEN138571:2003apply. 4Apparatus 4.1 Digit

25、altimerwithrelayoutput, capableof: beingsettoapredeterminedtimeintherangeof(0to10)s0,1s; beingstarted(triggered)whenthehingedarmisliftedbythetestpiece; automaticallystoppingtherotorwhenthepredeterminedtimehaselapsed. 4.2 Abrasiontestapparatus, asshowninFigure1,comprisingthefollowingmaincomponents.EN

26、136305:2003(E) 6 Dimensionsinmillimetres Key 1P i v o t 2 Hingedarm 3 Detonatingcord 4W e i g h t 5 Pulley 6R o d 7W e i g h t 8 Clampscrewforattachingthetestpiece 9 Clampforattachingthetestpiece 10Rotor NOTE Theweightontherodtotherightofthepulley(diameter70mm1mm)mayhangdowntherightsideofthepulley.

27、Figure1Abrasiontestapparatuswithrotorinstartingposition 4.2.1 Steelorbrassrotor, asshowninFigure2,withaperimeterof(4532)mmtowhichthreeabrasive strips(4.2.2)areattachedbymeansofglueordoublesidedadhesivetape.Itshallbeensuredthatelectrical contactbetweentheabrasivestripsandtherotorismade,e.g.attheslits

28、ontherotorwheretheendsofthe abrasivestripsareinserted(seeFigure2).Therotorshallrotateataspeedof(9,960,18)rpm,producingamean peripheralspeedof(0,0750,001)m/s. NOTE Dependingonattachmentprinciple(glueortape)oftheabrasivestriptotherotor,theabrasivestripmayhavetobe bentcarefullyusingasuitabletoolinorder

29、tofitproperlyagainstthesurfaceoftherotor.EN136305:2003(E) 7 Dimensionsinmillimetres Key 1 Slitfortheendoftheabrasivestrip 2 Abrasivestrip Figure2Rotor 4.2.2 Abrasivestrips, threepiecesapproximately10mmx145mmeach,madeofgrindingsteelasspecified inannexB. 4.2.3 Load,tobeappliedtothetestpiecethroughtheh

30、ingedarm(see4.2.4). 4.2.4 Hingedarm, madeofsteelorbrassasshowninFigure3.Inthestartingposition,thehingedarmshall applyaloadof(8,350,05)Ntothetestpiece.EN136305:2003(E) 8 Dimensionsinmillimetres Figure3Hingedarm 4.2.5 Pulley,diameter(701)mm,forapplyingatensileloadof(8,10,5)Ntothetestpiece,bymeansofa r

31、odandaweight. 4.2.6 Motor,capableofmaintainingaconstantspeedofrotationwhateverloadisappliedtotherotor. NOTE1 ADCmotorwithanoutputpowerofatleast500Wandwithaseparatespeedcontrolcanbeused. Therotorshallreachitsspecifiedspeedofrotation0,6safterstarting. NOTE2 Thisrequirementcanbeverifiedbytwoelectrodesa

32、bout20mmapart,eachadjustedtogiveelectricalcontactto thetipsoftherotorduringrotation.Theelectrodesareconnectedtoadigitalcounter,countingelapsedtime betweenthepulses fromthetwoelectrodeswhentheyaretouchingthetipsoftherotor.Comparisonismadebetweentheelapsedtimeduringa continuousrunatthespecifiedspeedan

33、dtheelapsedtime0,6safterstart.Firsttherotorisrotatedmanuallytoanappropr iate positioninorderforatipoftherotortoreachthesecondelectrodeafter0,6s. Theelectrodescanalsobeusedforcalibratingthespecifiedspeedofrotation,e.g.bymeasuringthetimeforonerevolution. In thiscaseonlyoneelectrodeisrequired. 4.3 Cond

34、itioningchamber, capableofmaintainingthehighesttemperature2 Cclaimedbythe manufacturer. 5 Testpieces Selectfivepiecesofdetonatingcordwithsuitablelengthofaspecifictypehavingthesamecompositionand dimensions.EN136305:2003(E) 9 6Procedure AttacheachtestpiecetotheattachmentpointsasshowninFigure1,e.g.bysu

35、itableclampinginordertoprevent thetestpiecefromdamageattheattachmentpoints. PositiontherotorasshowninFigure1,whichshowsthestartingposition. Liftupthehingedarm(722)mmabovethecentreoftherotorandfixitinthatpositionusingaretainingpinor similararrangement. Adjustthetensileloadto8,1N. Loadthehingedarmwith

36、(12,200,02)N(excludingtheadjustedloadduethehingedarmitself). Carryoutthetestattheuppertemperaturelimitstatedbythemanufacturer2C. Startthemotor. Thetimingmechanismshallbestartedautomaticallyasthehingedarmisliftedbythetestpiece. Removetheretainingpin. Therotorshallbestoppedautomaticallybythetimingmech

37、anismafter(5,000,05)s. Removethedetonatingcordfromtheapparatus.Recordanybreakageofthedetonatingcord.Recordany exposureoftheexplosivecoreofthedetonatingcord. NOTE Aftereachtesttheabrasivestripshouldbecleaned:forexample,byusingabrushwithplasticbristles.Theabrasive stripcanbeusedforseveraltestsbutshoul

38、dbechangedatsuitableintervalsbasedonpracticalexperienceofthedegradatio n ofthestrip.Thedegradationofthestripcanbemonitoredduringroutinetestingbyperiodicallytestinganewsetoftenele ctric wires(e.g.categoryIIleadingwiresusedfordetonators)knowntogiveameantimeatfailureofapproximately5swithanew abrasivest

39、rip.Thenitshouldbeensuredthatthemeantimeatfailureforeachsubsequentsetofthesewireshasnotincrease d bymorethan5%ofthemeantimeatfailurefortheoriginalsetofwires(usedwiththenewabrasivestrip). 7 Testreport ThetestreportshallconformtoENISO/IEC17025.Inaddition,thefollowinginformationshallbegiven: a)referenc

40、etothisstandard; b)resultofvisualinspectioninrespectofmechanicaldamage(i.e.breakageorexposureoftheexplosivecore).EN136305:2003(E) 10 Annex A (informative) Rangeofapplicabilityofthetestmethod Rangeofapplicabilityofthetestmethod: 30 Cto+80 CEN136305:2003(E) 11 Annex B (normative) Specificationofgrindi

41、ngsteel B.1 Type Grindingsteelmanufacturedbyusingachemicaletchingprocess. B.2 Material Martensiticstainlesssteel B.3 Dimensions ThecrosssectiondimensionsofthegrindingsteelshallcomplywithFigureB.1.Thevaluesindicatedrefertothe meanvaluesforthesetofabrasivestripsrequiredfortestingi.e.themeanvalueforthr

42、eestrips,eachwithasize of10mmx145mm. NOTE Theconformityofthestripsagainstthespecifiedtolerancescanbeverifiedbyselectinganappropriatenumber ofmeasurementpointsonarepresentativeareaofthegrindingsteel. Key 1 Meanvalue,diameter0,06mmto0,13mm 2 Meanvalue,thickness0,27mmto0,35mm 3 Meanvalue,depth0,14mmto0

43、,20mm FigureB.1Crosssectionofgrindingsteel ThecuttingpointpatternofthegrindingsteelshallcomplywithFigureB.2.Thecuttingpointsofthegrindingsteel aredistributedincircularsectionsorientatedasinFigureB.2a).Eachsectioncontainssevencircularrowsaround acentrecuttingpoint.Thecuttingpointsareplacedonthesecircularrows.Thecirculardiametersandnumberof cuttingpointsaregiveninTableB.1.EN