SANS 53763-5-2008 Explosives for civil uses - Detonators and relays Part 5 Determination of resistance to cutting damage of leading wires and shock tubes《民用爆炸品 雷管及导爆替续器 第5部分 引入线及震激.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21413-5 SANS 53763-5:2008Edition 1EN 13763-5:2003Edition 1SOUTH AFRICAN NATIONAL STANDARD Explosives for civil uses Detonators and relays

4、Part 5: Determination of resistance to cutting damage of leading wires and shock tubes This national standard is the identical implementation of EN 13763-5:2003 and is adopted with the permission of the CEN, rue de Stassart 36, B-1050 Brussels. Published by Standards South Africa 1 dr lategan road g

5、roenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 53763-5:2008 Edition 1 EN 13763-5:2003 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by N

6、ational Committee StanSA TC 5140.04, Explosives and detonators, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This document was published in August 2008. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 13763-5November 2003ICS 71.100.3

7、0English versionExplosives for civil uses - Detonators and relays - Part 5:Determination of resistance to cutting damage of leading wiresand shock tubesExplosifs usage civil - Dtonateurs et relais - Partie 5:Dtermination de la rsistance du fil damorage et du tube transmission dondes de choc aux domm

8、ages par coupesExplosivstoffe fr zivile Zwecke - Znder undVerzgerungselemente - Teil 5: Bestimmung derWiderstandsfhigkeit von Znderdrhten undZndschluchen gegen SchnittbelastungThis European Standard was approved by CEN on 7 September 2003.CEN members are bound to comply with the CEN/CENELEC Internal

9、 Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This E

10、uropean Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the nation

11、al standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALI

12、SATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2003 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13763-5:2003 ESANS 53763-5:2008This s tandard may only be used and printed by approved su

13、bscription and freemailing clients of the SABS .EN 13763-5:2003 (E)2Contents pageForeword3Introduction .51 Scope 52 Normative references 53 Terms and definitions54 Apparatus .55 Test pieces86 Procedure .97 Test report 9Annex A (informative) Range of applicability of the test method.10Annex ZA (infor

14、mative) Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives. .11SANS 53763-5:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-5:2003 (E)3ForewordThis document (EN 13763-5:2003) h

15、as been prepared by Technical Committee CEN/TC 321 “Explosives for civiluses“, the secretariat of which is held by AENOR.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by May 2004, and conflicting na

16、tional standards shall be withdrawn at the latest byMay 2004.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For the relationship with EU Directive(s), see informati

17、ve annex ZA, which is an integral part of this standard.This European Standard is one of a series of standards with the generic title Explosives for civil uses Detonatorsand relays. The other parts of this series are listed below:prEN 13763-1 Part 1: RequirementsEN 13763-2 Part 2: Determination of t

18、hermal stabilityEN 13763-3 Part 3: Determination of sensitiveness to impactEN 13763-4 Part 4: Determination of resistance to abrasion of leading wires and shock tubesEN 13763-6 Part 6: Determination of resistance to cracking at low temperatures of leading wiresEN 13763-7 Part 7: Determination of the

19、 mechanical strength of leading wires, shock tubes, connections,crimps and closuresEN 13763-8 Part 8: Determination of resistance to vibration of plain detonatorsEN 13763-9 Part 9: Determination of resistance to bending of detonatorsEN 13763-11 Part 11: Determination of resistance to damage by dropp

20、ing of detonators and relaysEN 13763-12 Part 12: Determination of resistance to hydrostatic pressureprEN 13763-13 Part 13: Determination of resistance of electric detonators against electrostatic dischargeprEN 13763-15 Part 15: Determination of equivalent initiating capabilityprEN 13763-16 Part 16:

21、Determination of delay accuracyprEN 13763-17 Part 17: Determination of no-fire current of electric detonatorsprEN 13763-18 Part 18: Determination of series firing current of electric detonatorsprEN 13763-19 Part 19: Determination of firing impulse of electric detonatorsEN 13763-20 Part 20: Determina

22、tion of total electrical resistance of electric detonatorsprEN 13763-21 Part 21: Determination of flash-over voltage of electric detonatorsprEN 13763-22 Part 22: Determination of capacitance, insulation resistance and insulation breakdown of leadingwiresSANS 53763-5:2008This s tandard may only be us

23、ed and printed by approved subscription and freemailing clients of the SABS .EN 13763-5:2003 (E)4EN 13763-23 Part 23: Determination of the shock-wave velocity of shock tubesEN 13763-24 Part 24: Determination of the electrical non-conductivity of shock tubesprEN 13763-25 Part 25: Determination of tra

24、nsfer capability of surface connectors and coupling accessoriesprEN 13763-26 Part 26: Definitions, methods and requirements for devices and accessories for reliable and safefunction of detonators and relaysCEN/TS 13763-27 Part 27: Definitions, methods and requirements for electronic initiation syste

25、msAnnex A is informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxe

26、mbourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.SANS 53763-5:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-5:2003 (E)5IntroductionDuring usage on site, the insulation on

27、the leading wires of electric detonators and the plastic tubing of shock tubeto be used in non-electric detonator assemblies can be subjected to cutting forces when drawn over a sharp edge.In the former, the plastics material is worn away gradually by abrasion to cause failure of the insulation or t

28、ubing. Inthe latter, the sharp edge cuts directly into the material. This standard deals with the latter case by determining theability of leading wire insulation/shock tube to resist the cutting forces likely to be experienced in normal use.1 ScopeThis European Standard specifies a method for deter

29、mining the resistance to failure of the plastic materials used ininsulation of leading wires of electric detonators, or the tubing of shock tube non-electric detonators, when drawnover a sharp edge under specified loading conditions.2 Normative referencesThis European Standard incorporates by dated

30、or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only

31、when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies. (including amendments)EN 13857-1:2003; Explosives for civil uses Part 1: Terminology.EN ISO/IEC 17025; General requirements for the competence of testing and calibration

32、 laboratories (ISO/IEC17025:1999).3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN 13857-1:2003 apply.4 Apparatus4.1 Cutting damage apparatusThe cutting damage apparatus shall incorporate the basic principles shown in Figure 1 comprising the fo

33、llowingcomponents.4.1.1 Tungsten carbide edge, having a 90G01 cutting edge radiused to (0,07 0,02) mm;4.1.2 Pulley A, having a diameter of (43,0 0,5) mm;4.1.3 Pulley B, having a diameter of (33,0 0,5) mm ;4.1.4 Electric motor, with a gearbox capable of rotating pulley B at 0,1250+ 0,008r/s and maint

34、aining its finalposition when the power to the motor is switched off;4.1.5 Electrical device, to detect when electrical contact is made between the conductor in the leading wire andthe cutting edge (see 4.1.1);SANS 53763-5:2008This s tandard may only be used and printed by approved subscription and

35、freemailing clients of the SABS .EN 13763-5:2003 (E)64.1.6 Spring balance, or similar alternative arrangement, capable of applying a gradually increasing force andindicating its value.Dimensions in millimetresKey1 Spring balance2 Tungsten carbide edge3 Pulley A4 Pulley B5 Remaining shock tube/leadin

36、g wire6 Suitable attachment to shock tube/leading wire7 (375 G01 20) mm at start of test8 Suitable attachment to shock tube/leading wire (remainder not shown).Figure 1 Principle of test apparatusFigure 2 shows an example of an apparatus, with equivalent alternative arrangements for applying and reco

37、rdingthe maximum value of applied force.SANS 53763-5:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-5:2003 (E)7Dimensions in millimetresKey1 Internal radius 200 mm2 Shock tube/leading wire3 Tungsten carbide edge4 Pulley A5 Pulle

38、y B6 Movable balance-weight of (860 G01 10)g7 Diameter (12 G01 0,2) mm8 Arm of a lever on steel with thickness of (8,5 G01 0,2) mm9Protractor10 Movable loadFigure 2 Example of a test apparatus4.2 Immersion test apparatusImmersion test apparatus, as shown in Figure 3, comprising the following compone

39、nts:4.2.1 Cylindrical bending rig, capable of bending and maintaining the test pieces of shock tube in a “U“-form witha bending radius of (1,6 0,1) times the diameter of the shock tube.4.2.2 Tank of water, deep enough to allow the cut portion of shock tube to be immersed to (0,50 0,05) m.SANS 53763-

40、5:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-5:2003 (E)8Dimensions in metresKey1 Shock tube2Water3 Cylindrical bending rig4 Rod with a diameter equal to the diameter of the shock tube5 Cut surface of shock tube on the outer

41、radiusFigure 3 Water tank and bending rig4.3 Conditioning chamber, capable of maintaining the highest temperature claimed by the manufacturer within 2 G01C.5 Test pieces5.1 Leading wiresSelect 20 lengths of leading wire, each (3,0 G02 0,5) m long, from 20 detonators of a specific type having the sam

42、eleading wire type, composition and dimensions. The test pieces can be selected from detonators, from which thepieces are cut, or from wires supplied by the manufacturer of the detonator. If the detonator has twin wires theyshall not be separated and shall be parallel and flat at testing.5.2 Shock t

43、ubesSelect 20 lengths of shock tube, each (3,0 G02 0,5) m long, from 20 detonators of a specific type having the sameshock tubing type, composition and dimensions. The test pieces can be selected from detonators, from which thepieces are cut, or from shock tubes supplied by the manufacturer of the d

44、etonator.SANS 53763-5:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-5:2003 (E)96 Procedure6.1 ConditioningCondition the test pieces in the conditioning chamber (see 4.3) at the highest temperature claimed by themanufacturer wit

45、hin 2 G01C for at least 2 h prior to testing.6.2 Detonator leading wiresFor each of the 20 test pieces attach one end of the leading wire to the spring balance and the other end to pulleyB (driven by the motor) so that it passes over the tungsten carbide cutting edge and pulley A, as shown in Figure

46、 1.Carry out the test at the highest temperature claimed by the manufacturer within 2 G01C.Start the electric motor to draw the wire over the cutting edge and apply the gradually increasing load.When the spring balance or similar arrangement reads (7,0 0,5) N stop the apparatus and remove the leadin

47、gwires.Record whether there has been an electrical contact between the leading wire conductor and the tungsten carbidecutting edge.6.3 Shock tubesFor each of the 20 test pieces, attach one end of the shock tube to the spring balance and the other end to pulley B(driven by the motor) so that it passe

48、s over the tungsten carbide cutting edge and pulley A, as shown in Figure 1.Carry out the test at the highest temperature claimed by the manufacturer within 2 G01C.Start the electric motor to draw the shock tube over the cutting edge and apply the gradually increasing load.When the spring balance or

49、 similar arrangement reads (7,0 0,5) N stop the apparatus and remove the shocktube. It shall be cooled down to (20 2) G01C before inserting in the bending rig.Insert the shock tube into the bending rig so that the tube is bent into a ”U” shape with the cut surface is on theouter radius of the bend. Put the shock tube and the bending rig into the tank of water so that the free ends areabove the water and the cut surface is below the water at a depth of (0,50 0,05) m (see Figure 3). Store for 24 hat (20 5) G01C.After storing in t