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1、BRITISH STANDARD BS EN 13763-17:2003 Explosives for civil uses Detonators and relays Part 17: Determination of no-fire current of electric detonators The European Standard EN 13763-17:2003 has the status of a British Standard ICS 71.100.30 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:
2、20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13763-17:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 12 January 2004 BSI 12 January 2004 ISBN 0 580 43231 9 National foreword This British Standard is the official English langu
3、age version of EN 13763-17:2003. The UK participation in its preparation was entrusted to Technical 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 Br
4、itish Standards which implement international or European publications referred to in this document 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 O
5、nline. This publication does not purport to include all the necessary provisions of a contract. Users 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 respon
6、sible international/European committee any enquiries on the interpretation, or proposals for change, 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 cove
7、r, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Uncontrolled
8、 Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13763-17 December 2003 ICS 71.100.30 English version Explosives for civil uses - Detonators and relays - Part 17: Determination of no-fire current of electric detonators Explosifs usage civil - Dtonateurs et relais - Partie 17: Dter
9、mination du courant maximal de non-amorage des dtonateurs lectriques Explosivstoffe fr zivile Zwecke - Znder und Verzgerungselemente - Teil 17: Bestimmung der Nichtansprechstromstrke elektrischer Znder This European Standard was approved by CEN on 10 November 2003. CEN members are bound to comply wi
10、th the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centr
11、e or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official ver
12、sions. 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 and United Kingdom. EUROPEAN COMMITTEE FOR STA
13、NDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13763-17:2003 E Licensed Copy: sheffieldun sheffi
14、eldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-17:2003 (E) 2 Contents page Foreword3 1Scope 5 2Normative references 5 3Terms and definitions5 4Test pieces5 5Apparatus .5 6Procedure .6 7Calculation of results 6 8Test report 7 Annex A (informative) Range of applicab
15、ility of the test method.8 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives9 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-17:2003 (E) 3 Foreword This
16、document (EN 13763-17:2003) has been prepared by Technical Committee CEN/TC 321 “Explosives for civil uses“, 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 or by endorsement, at the latest
17、 by June 2004, and conflicting national standards shall be withdrawn at the latest by June 2004. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship w
18、ith 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 a series of standards with the generic title Explosives for civil uses Detonators and relays. The other parts of this series are listed below: prEN 1376
19、3-1Part 1: Requirements EN 13763-2Part 2: Determination of thermal stability EN 13763-3Part 3: Determination of sensitiveness to impact EN 13763-4Part 4: Determination of resistance to abrasion of leading wires and shock tubes EN 13763-5Part 5: Determination of resistance to cutting damage of leadin
20、g wires and shock tubes EN 13763-6Part 6: Determination of resistance to cracking in low temperatures of leading wires EN 13763-7Part 7: Determination of the mechanical strength of leading wires, shock tubes, connections, crimps and closures EN 13763-8Part 8: Determination of the resistance to vibra
21、tion of plain detonators EN 13763-9Part 9: Determination of resistance to bending of detonators EN 13763-11Part 11: Determination of resistance to damage by dropping of detonators and relays EN 13763-12Part 12: Determination of resistance to hydrostatic pressure prEN 13763-13Part 13: Determination o
22、f resistance of electric detonators against electrostatic discharge prEN 13763-15Part 15: Determination of equivalent initiating capability EN 13763-16Part 16: Determination of delay accuracy EN 13763-18Part 18: Determination of series firing current of electric detonators EN 13763-19Part 19: Determ
23、ination of firing impulse of electric detonators EN 13763-20Part 20: Determination of total electrical resistance of electric detonators EN 13763-21Part 21: Determination of flash-over voltage of electric detonators Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Unco
24、ntrolled Copy, (c) BSI EN 13763-17:2003 (E) 4 EN 13763-22Part 22: Determination of capacitance, insulation resistance and insulation breakdown of leading wires EN 13763-23Part 23: Determination of the shock-wave velocity of shock tube EN 13763-24Part 24: Determination of the electrical non-conductiv
25、ity of shock tube prEN 13763-25Part 25: Determination of transfer capability of surface connectors, relays and coupling accessories prEN 13763-26Part 26: Definitions, methods and requirements for devices and accessories for reliable and safe function of detonators and relays. CEN/TS 13763-27Part 27:
26、 Definitions, methods and requirements for electronic initiation systems According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germa
27、ny, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-17:2003 (E) 5 1 Scope This
28、European Standard specifies a method for determining the no-fire current of electric detonators. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, a
29、nd the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (
30、including amendments). prEN 13763-1, Explosives for civil uses - Detonators and relays - Part 1: Requirements. EN 13857-1, Explosives for civil uses - Part 1: Terminology. EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:1999). 3 Terms
31、and definitions For the purposes of this European Standard, the terms and definitions given in EN 13857-1 and the following apply. PBBS test statistical method used to characterise the sensitivity, to a physical stimulus, of “one shot“ pyrotechnical components. The principle of the test is to measur
32、e the firing frequency at predefined levels of the physical stimulus. The physical stimulus in this standard is the firing current. Sensitivity levels corresponding to the required probability and confidence limits are then determined by extrapolation. A detailed description of the test is given in
33、prEN 13763-1. 4 Test pieces Depending on the number of levels of the PBBS test, 170 to 250 detonators of the same type are needed (i.e. same bridgewire ignition system and shell). Use 30 detonators for the preliminary test (see 6.2) and 20 detonators for each current level in the determination (see
34、6.3). If the detonators form part of a series with different delay times, select detonators with delay times distributed as evenly as possible throughout the series. If the no-fire current claimed by the manufacturer is less than or equal to 2A, bare fuseheads can be used instead of complete detonat
35、ors. If the detonators are magnetically coupled, the coupling unit shall be removed. 5 Apparatus Square pulse current supply, with the following characteristics: a) a stabilized current with a tolerance on the output of 1 % of the specified value (see 6.3.2); b) a square pulse with a tolerance of 1
36、% of the specified duration (see 6.3.3); Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-17:2003 (E) 6 c) a current overshoot of not more than 10 % of the specified current, and duration not greater than 1 ms (on pure resistive load
37、); d) a rise time for the current of not more than 1 ms (on pure resistive load). 6 Procedure 6.1 Conditioning Store the samples at ambient temperature for at least 2 h before testing. 6.2 Preliminary testing Carry out a preliminary test (for example a Bruceton test), using 30 detonators, to obtain
38、an estimate of the current for 50% firing (I0,5) and the standard deviation (s). The duration of the square pulse shall be set to 10 s if the no-fire current claimed by the manufacturer is less than or equal to 2A and 5 min if it is greater than 2A. 6.3 Testing to determine the no-fire level 6.3.1Pe
39、rform the test at ambient temperature (20 2) C, as follows : 6.3.2Choose 7 to 11 current levels covering the interval I0,5 2 s. 6.3.3Connect the current pulse recorder and set the square pulse duration to 10 s if the no-fire current claimed by the manufacturer is less than or equal to 2A, and 5 min
40、if it is greater than 2A. 6.3.4Set the current to the first level. 6.3.5Connect one detonator (or fusehead) to the circuit and apply the current pulse. 6.3.6Record whether the detonator (or fusehead) fires. 6.3.7Repeat steps 6.3.5 to 6.3.6 using the other 19 detonators (or fuseheads). 6.3.8Repeat st
41、eps 6.3.4 to 6.3.7 for each of the other current levels. 7 Calculation of results For each level tested, determine the number of firings. Calculate the no-fire current using the PBBS test. The probability and confidence levels are set at 0,01 % and 95 % respectively. Licensed Copy: sheffieldun sheff
42、ieldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-17:2003 (E) 7 8 Test report The test report shall conform to EN ISO/IEC 17025. In addition, the current levels, mean values, standard deviations, number of ignitions, number of non ignitions and the no-fire current f
43、or 0,01 % probability and 95 % confidence level shall be given. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-17:2003 (E) 8 Annex A (informative) Range of applicability of the test method Range of applicability of the test method:
44、 - 30 C to + 80 C. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-17:2003 (E) 9 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives This document has been
45、prepared under a mandate given to CEN by the European Commission and the European Free 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 essential requirements of the Direct
46、ives concerned and associated EFTA regulations. WARNING : Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard. The clauses of this document are likely to support requirements in I.1, I.2, II.1(a) and II.1(i) of Directive 93/15/EEC.
47、 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:20:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13763-17:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the
48、 UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to imp
49、rove the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying st
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