SANS 53763-7-2008 Explosives for civil uses - Detonators and relays Part 7 Determination of the mechanical strength of leading wires shock tubes connections crimps and closures《民用爆.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 978-0-626-21726-6 SANS 53763-7:2008Edition 1EN 13763-7:2003Edition 1SOUTH AFRICAN NATIONAL STANDARD Explosives for civil uses Detonators and relays

4、Part 7: Determination of the mechanical strength of leading wires, shock tubes, connections, crimps and closures This national standard is the identical implementation of EN 13763-7:2003 and is adopted with the permission of the CEN, rue de Stassart 36, B-1050 Brussels. Published by Standards South

5、Africa 1 dr lategan road groenkloof 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 53763-7:2008 Edition 1 EN 13763-7:2003 Edition 1 Table of changes Change No. Date Scope National foreword This South African

6、standard was approved by National 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-

7、7November 2003ICS 71.100.30English versionExplosives for civil uses - Detonators and relays - Part 7:Determination of the mechanical strength of leading wires,shock tubes, connections, crimps and closuresExplosifs usage civil - Dtonateurs et relais - Partie 7:Dterminationde la force mcanique des fil

8、s damorage,tubes transmission donde de choc, liaisons, sertissags etfermeturesExplosivstoffe fr zivile Zwecke - Znder undVerzgerungselemente - Teil 7: Bestimmung dermechanischen Festigkeit von Znderdrhten,Zndschluchen, Verbindungen, Anwrgung undVerschlussThis European Standard was approved by CEN on

9、 1 September 2003.CEN members are bound to comply with the CEN/CENELEC Internal 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

10、be obtained on application to the Management Centre or to any CEN member.This European 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 Managemen

11、t Centre has the same status as the officialversions.CEN members are the national 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 a

12、nd UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES 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 13763-7:20

13、03 ESANS 53763-7:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-7:2003 (E)2Contents pageForeword3Introduction .51 Scope 52 Normative references 53 Terms and definitions54 Apparatus .55 Test pieces66 Procedure .77 Test report 8An

14、nex A (informative) Range of applicability of the test method.9Annex ZA (informative) Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives. .10SANS 53763-7:2008This s tandard may only be used and printed by approved subscription and freemailing clie

15、nts of the SABS .EN 13763-7:2003 (E)3ForewordThis document (EN 13763-7:2003) has 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

16、identical text orby endorsement, at the latest by May 2004, and conflicting national 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 requiremen

17、ts of EU Directive(s).For the relationship with EU Directive(s), see informative 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 liste

18、d below:prEN 13763-1 Part 1: RequirementsEN 13763-2 Part 2: Determination of thermal 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 13763-5 Part 5: Determination of resistance to cuttin

19、g damage of leading wires and shock tubesEN 13763-6 Part 6: Determination of resistance to cracking at low temperatures of leading wiresEN 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 Pa

20、rt 11: Determination of resistance to damage by dropping 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 eq

21、uivalent initiating capabilityprEN 13763-16 Part 16: 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

22、 of electric detonatorsEN 13763-20 Part 20: Determination 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 leadi

23、ngwiresSANS 53763-7:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-7:2003 (E)4EN 13763-23 Part 23: Determination of the shockwave velocity of shock tubesEN 13763-24 Part 24: Determination of the electrical non-conductivity of sh

24、ock tubesprEN 13763-25 Part 25: Determination of transfer 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, meth

25、ods and requirements for electronic initiation systemsAnnex 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, Ger

26、many, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.SANS 53763-7:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-7:2003 (E)5

27、IntroductionDuring normal use on site, the crimps/closures of detonators and their leading wires or shock tubes can besubjected to pulling forces. Such forces can cause a pullout of internal components of the detonator. For example:G01 the shock tube can be pulled out of the detonator through the se

28、aling plug;G01 the leading wires, fusehead and sealing plug can be pulled out of the shell as one unit;G01 the leading wires with fusehead connected to them can pull out through the sealing plug;G01 the leading wires can break, or the joint between fusehead and wires break inside the sealing plug, s

29、o that thewires pull out leaving the fusehead loose inside the shell.A pullout would either cause the detonator to explode, or would render it incapable of functioning.1 ScopeThis European Standard specifies a method for determining the ability of detonator leading wires/shock tubes, andtheir connec

30、tions into the crimp/closure or sealing arrangement, to withstand a pullout when subjected to a pullingforce.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in t

31、he text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to ap

32、plies (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 laboratories (ISO/IEC17025:1999).3 Terms and definitionsFor the purposes of this European Standard, the terms and definitio

33、ns given in EN 13857-1:2003 apply.4 ApparatusThe apparatus comprises the following components as shown in Figure 1:4.1 Fixing point for the detonator.4.2 Weight(s) to be attached to the leading wires or shock tubes, suitable for applying forces of 40 or 100 N.4.3 Moveable support table.SANS 53763-7:

34、2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-7:2003 (E)6Dimensions in millimetresKey1 Detonator2 Fixing point for detonator3 Leading wires or shock tube4 Weight(s)5 Movable support tableFigure 1 Test apparatus5 Test pieces5.1

35、Electric detonatorsSelect 40 assemblies of each specific type, whose dimensions, shell material, leading wires, construction andcrimp/closure are of the same design, but primary charge/base charge, delay compositions and fuseheads mayvary.5.2 Non electric detonatorsSelect 20 assemblies of each speci

36、fic type, whose dimensions, shell material, shock tube, construction andcrimp/closure are of the same design, but primary charge/base charge and delay composition may vary.SANS 53763-7:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13

37、763-7:2003 (E)76 Procedure6.1 GeneralThe tests shall be carried out at the highest operating temperature claimed by the manufacturer.6.2 Sudden release test6.2.1 Electric detonatorsTest 20 assemblies. Attach the detonator shell to the fixing point and attach the leading wires to weights of totalmass

38、 corresponding to a force of (40 G02 0,1) N. Let the weights rest on the supporting table, in such a manner that aslight tension, of about 5 N, is applied and so that the distance between the detonator and the attachment to theweights is (500 G02 50) mm.Ensure that the leading wires are attached to

39、the weights in such a manner that the force will be evenly distributedbetween them. Release the weights so that the full load is applied instantly and maintain the load for (120 G02 5) s.Record whether or not the detonator fires during the test. Record whether or not the leading wires break and/orwh

40、ether a pullout has occurred.6.2.2 Non electric detonatorsTest 20 assemblies. Attach the detonator shell to the fixing point and attach the shock tube to weights of total masscorresponding to a force of (40 G02 0,1) N. Let the weights rest on the supporting table, in such a manner that a slighttensi

41、on, of about 5 N, is applied and so that the distance between the detonator and the attachment to the weightsis (500 G02 50) mm. Release the weights so that the full load is applied instantly and maintain the load for (120 G02 5) s.Record whether or not the detonator fires during the test. Record wh

42、ether or not the shock tube breaks and/orwhether a pullout has occurred.6.3 Slow release test (electric detonators only)Test 20 assemblies. Attach the detonator shell to the fixing point and attach the leading wires to weights of totalmass corresponding to a force of (100 G02 1) N. Let the weights r

43、est on the supporting table, in such a manner that aslight tension of about 5 N is applied, and so that the distance between the detonator and the attachment to theweights is (500 G02 50) mm. Ensure that the leading wires are attached to the weights in such a manner that the forcewill be evenly dist

44、ributed between them. Release the weights slowly until the full load is applied and maintain thatload for 10 s. Record whether or not the detonator fires during the test. Record whether or not the leading wiresbreak or whether a pullout has occurred.6.4 Functioning test after sudden release testAfte

45、r tests carried out as specified in 6.2.1 and 6.2.2, fire each remaining detonator of which the leading wires orshock tube are intact and no pullout has occurred, in accordance with the manufacturers instructions. Recordwhether the detonators fire or not.SANS 53763-7:2008This s tandard may only be u

46、sed and printed by approved subscription and freemailing clients of the SABS .EN 13763-7:2003 (E)87 Test reportThe test report shall conform to EN ISO/IEC 17025. In addition the following information shall be given:a) the temperature at which the tests are carried out;b) any detonation recorded in t

47、he sudden release test or the slow release test;c) number of detonators where leading wires or shock tube break and/or a pullout occurs in the sudden releasetest;d) number of wires that break and/or number of pullouts in the slow release test;e) number of detonators that do not fire in the functioni

48、ng test.SANS 53763-7:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-7:2003 (E)9Annex A(informative)Range of applicability of the test methodRange of applicability of the test method: - 30 C to + 80 C.SANS 53763-7:2008This s tand

49、ard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-7:2003 (E)10Annex ZA(informative)Clauses of this European Standard addressing essential requirements orother provisions of EU Directives.This European standard has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association and supports essential requirements of EU Directive 93/15/EEC.WARNING : Other requirements and other EU Directives may be applicable to the product(s) falling within thescope of this