SANS 53763-19-2008 Explosives for civil uses - Detonators and relays Part 19 Determination of firing impulse of electric detonators《民用爆炸品 雷管及导爆替续器 第19部分 电雷管点火脉冲测定》.pdf

《SANS 53763-19-2008 Explosives for civil uses - Detonators and relays Part 19 Determination of firing impulse of electric detonators《民用爆炸品 雷管及导爆替续器 第19部分 电雷管点火脉冲测定》.pdf》由会员分享，可在线阅读，更多相关《SANS 53763-19-2008 Explosives for civil uses - Detonators and relays Part 19 Determination of firing impulse of electric detonators《民用爆炸品 雷管及导爆替续器 第19部分 电雷管点火脉冲测定》.pdf（12页珍藏版）》请在麦多课文档分享上搜索。

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 978-0-626-21730-3 SANS 53763-19:2008Edition 1EN 13763-19:2003Edition 1SOUTH AFRICAN NATIONAL STANDARD Explosives for civil uses Detonators and relay

4、s Part 19: Determination of firing impulse of electric detonators This national standard is the identical implementation of EN 13763-19:2003 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 groenkloof private ba

5、g x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 53763-19:2008 Edition 1 EN 13763-19:2003 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee

6、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 13763-19December 2003ICS 71.100.30English versionE

7、xplosives for civil uses - Detonators and relays - Part 19:Determination of firing impulse of electric detonatorsExplosifs usage civil - Dtonateurs et relais - Partie 19:Dtermination de limpulsion dallumage des dtonateurslectriquesExplosivstoffe fr zivile Zwecke - Znder undVerzgerungselemente - Teil

8、 19: Bestimmung desZndimpulses elektrischer ZnderThis European Standard was approved by CEN on 10 November 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 alte

9、ration. 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 European Standard exists in three official versions (English, French, German). A version in any other language made by translati

10、onunder 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 national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, I

11、taly, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and 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

12、in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13763-19:2003 ESANS 53763-19:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-19:2003 (E)2Contents pageForeword31 Scope 52 Normative references 53

13、 Terms and definitions54 Test pieces65 Apparatus .66 Procedure .77 Calculation of test results.78 Test report 7Annex A (informative) Range of applicability of the test method.8Annex ZA (informative) Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directiv

14、es 9SANS 53763-19:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-19:2003 (E)3ForewordThis document (EN 13763-19:2003) has been prepared by Technical Committee CEN/TC 321 “Explosives for civiluses“, the secretariat of which is he

15、ld 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 June 2004, and conflicting national standards shall be withdrawn at the latest byJune 2004.This document has been prepared under a mandat

16、e given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.Annex A is informative.This European Standard is one of

17、 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 thermal stabilityEN 13763-3 Part 3: Determination of sensitiveness to impactEN 13763-4 Pa

18、rt 4: Determination of resistance to abrasion of leading wires and shock tubesEN 13763-5 Part 5: Determination of resistance to cutting damage of leading wires and shock tubesEN 13763-6 Part 6: Determination of resistance to cracking in low temperatures of leading wiresEN 13763-7 Part 7: Determinati

19、on of the mechanical strength of leading wires, shock tubes, connections,crimps and closuresEN 13763-8 Part 8: Determination of the 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 da

20、mage 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 equivalent initiating capabilityEN 13763-1

21、6 Part 16: Determination of delay accuracyEN 13763-17 Part 17: Determination of no-fire current of electric detonatorsEN 13763-18 Part 18: Determination of series firing current of electric detonatorsEN 13763-20 Part 20: Determination of total electrical resistance of electric detonatorsEN 13763-21

22、Part 21: Determination of flash-over voltage of electric detonatorsSANS 53763-19:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-19:2003 (E)4EN 13763-22 Part 22: Determination of capacitance, insulation resistance and insulation

23、breakdown of leadingwiresEN 13763-23 Part 23: Determination of the shock-wave velocity of shock tubeEN 13763-24 Part 24: Determination of the electrical non-conductivity of shock tubeprEN 13763-25 Part 25: Determination of transfer capability of surface connectors, relays and couplingaccessoriesprEN

24、 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 systemsAccording to the CEN/CENELEC Internal Regulations, the national s

25、tandards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the

26、United Kingdom.SANS 53763-19:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-19:2003 (E)51 ScopeThis European Standard specifies a method for determining the all-fire-impulse and the no-fire-impulse of electricdetonators.2 Normat

27、ive referencesThis European Standard incorporates by dated 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

28、 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 applies (including amendments).EN 13857-1, Explosives for civil uses - Part 1: Terminology.prEN 13763-1:2001, Explosive

29、s for civil uses - Detonators and relays - Part 1: Requirements.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 definitions given in EN 13857-1 and t

30、he following apply.3.1thermal time constant (Ct) of the detonator is given by the following formula:()2NFNFTIWC (1)whereCTis the thermal time constant in seconds (s)WNFis the no-fire-impulse specified by the manufacturer, in A/sINFis the no-fire-current specified by the manufacturer, in A3.2all-fire

31、-impulseminimum electrical energy needed to fire all of the detonators connected in series, divided by the total resistance ofthe complete round3.3no-fire-impulsemaximum electrical energy divided by the total resistance of the complete round, which, when delivered in a shorttime, causes none of the

32、detonators to fire3.4PBBS teststatistical method used to characterise the sensitivity, to a physical stimulus, of “one shot“ pyrotechnicalcomponentsSANS 53763-19:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-19:2003 (E)6The pri

33、nciple of the test is to measure the firing frequency at predefined levels of the physical stimulus. Thephysical stimulus in this standard is the firing impulse. Sensitivity levels corresponding to the required probabilityand confidence limits are then determined by extrapolation.A detailed descript

34、ion of the test is given in prEN 13763-1.4 Test piecesDepending on the number of levels of the PBBS test (see annex C of prEN 13763-1:2001), 170 to 250 detonatorsof the same type are needed (i.e. same bridgewire ignition system). If the detonators form part of a series withdifferent delay times, sel

35、ect detonators with delay times distributed as evenly as possible throughout the series. Inthe case of magnetically coupled detonators, where complete detonators are used, the transformer coupling unitshall be removed before testing.NOTE Fuseheads can be used instead of complete detonators.5 Apparat

36、us5.1 Square pulse current supply, with the following characteristics:a) a stabilized current with a tolerance on the output of 1 % of the set value (see 6.3.2);b) a square pulse with a tolerance of 1 % of the set duration (see 6.3.1);c) a current overshoot of not more than 10 % of the set current a

37、nd duration not greater than 50 m s (on pureresistive load);d) a rise time for the current of not more than 50 m s (on pure resistive load).5.2 Alternative apparatusAlternatively, the following apparatus may be used: a capacitor, an adjustable d.c. voltage generator, an adjustableresistor and a fast

38、 non-arcing current switch with the following characteristics:a) a capacitance (C) with a tolerance not greater than 5 % of the set value;b) a voltage with a tolerance not greater than 1 % of the set value;c) a resistance (R) with a tolerance not greater than 1 % of the set value.The time constant (

39、RC) of the circuit, which is calculated as the product of R, resistor, and C, capacitor, shall beshorter than one tenth of the thermal time constant of the fusehead. The resistance of the circuit should be varied.SANS 53763-19:2008This s tandard may only be used and printed by approved subscription

40、and freemailing clients of the SABS .EN 13763-19:2003 (E)76 Procedure6.1 Test temperatureCondition the detonators for at least 2 h at a temperature of (20 2) C and carry out the test at the sametemperature.6.2 Preliminary testCarry out a preliminary test (for example a Bruceton test), using 30 deton

41、ators, to obtain an estimate of the pulseduration for 50 % firing (t50) and the corresponding standard deviation (s50). To ensure that the pulse durations donot exceed one third of the thermal time constant, the current amplitude shall be set to a value of two to three timesthe series firing current

42、 specified by the manufacturer.6.3 Determination6.3.1 Choose 7 to 11 levels of pulse duration covering the time interval (t50 2s50).6.3.2 Connect the current pulse recorder and set the square pulse current to a value of two to three times theseries firing current specified by the manufacturer.6.3.3

43、Set the pulse duration to the first level.6.3.4 Connect one detonator to the circuit and apply the current pulse.6.3.5 Record whether the detonator fires.6.3.6 Repeat steps 6.3.4 to 6.3.5 using the other 19 detonators.6.3.7 Repeat steps 6.3.3 to 6.3.6 for each of the other pulse durations.7 Calculat

44、ion of test resultsFor each pulse duration tested, determine the number of firings.Calculate the no-fire impulse using the method described in annex C of prEN 13763-1:2001. The probability andconfidence levels are set at 0,01 % and 95 % respectively.Calculate the all-fire impulse using the method de

45、scribed in annex C of prEN 13763-1:2001. The probability andconfidence levels are set at 99,99 % and 95 % respectively.8 Test reportThe test report shall conform to EN ISO/IEC 17025. In addition the following information shall be given:a) all-fire-impulse;b) no-fire-impulse;c) the impulse levels, me

46、an values, standard deviations, number of ignitions and number of non ignitions.SANS 53763-19:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-19:2003 (E)8Annex A(informative)Range of applicability of the test methodRange of appli

47、cability of the test method: - 30 C to + 80 C.SANS 53763-19:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-19:2003 (E)9Annex ZA(informative)Clauses of this European Standard addressing essential requirements orother provisions o

48、f EU DirectivesThis 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 93/15/EEC.Compliance with the clauses of this standard provides one means of conforming with the specific

49、essentialrequirements of the Directives concerned and associated EFTA regulations.WARNING : Other requirements and other EU Directives may be applicable to the product(s) falling within thescope of this standard.The clauses of this document are likely to support requirements I.1, I.2, II.1.(a), and II.1.(i) of the Directive93/15/EEC.SANS 53763-19:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .