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1、BRITISH STANDARD BS EN 13763-24:2002 Explosives for civil uses Detonators and relays Part 24: Determination of the electrical non-conductivity of shock tube The European Standard EN 13763-24:2002 has the status of a British Standard ICS 71.100.30 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Oct
2、 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13763-24:2002 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 6 June 2003 BSI 6 June 2003 ISBN 0 580 42003 5 National foreword This British Standard is the official English languag
3、e version of EN 13763-24:2002. 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 Brit
4、ish 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 Onl
5、ine. 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 responsi
6、ble 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 cover,
7、 the EN title page, pages 2 to 9 and a back cover. The BSI copyright date 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 02:19:17 GMT+00:00 2006, Uncontrolled Cop
8、y, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13763-24 September 2002 ICS 71.100.30 English version Explosives for civil uses - Detonators and relays - Part 24: Determination of the electrical non-conductivity of shock tube Explosifs usage civil - Dtonateurs et relais - Partie 24:
9、Dtermination de la non-conductivit lectrique du tube transmission dondes de choc Explosivestoffe fr zivile Zwecke - Znder und Verzgerungselemente - Teil 24: Bestimmung der elektrischen Nichtleitfhigkeit von Zndschluchen This European Standard was approved by CEN on 1 August 2002. CEN members are bou
10、nd to comply with 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 M
11、anagement 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 translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as t
12、he official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDAR
13、DIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13763-24:2002 E Licensed Copy: sheffieldun sheffieldu
14、n, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-24:2002 (E) 2 Contents page Foreword3 1Scope 5 2Normative references 5 3Terms and definitions5 4Apparatus .5 5Test pieces6 6Procedure .6 7Test report 7 Annex A (informative) Range of applicability of the test method.8 Ann
15、ex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives9 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-24:2002 (E) 3 Foreword This document (EN 13763-24:2002) ha
16、s 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 by March 2003, and conflictin
17、g national standards shall be withdrawn at the latest by March 2003. This European Standard 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 the relationship with EU Directiv
18、e(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 Detonators and relays. The other parts of this series are listed below: prEN 13763-1Part 1: Requirements. EN 13763-2Part
19、 2: Determination of thermal stability. EN 13763-3Part 3: Determination of sensitiveness to impact. prEN 13763-4Part 4: Determination of resistance to abrasion of leading wires and shock tubes. prEN 13763-5Part 5: Determination of resistance to cutting damage of leading wires and shock tubes. prEN 1
20、3763-6Part 6: Determination of resistance to cracking in low temperatures of leading wires. prEN 13763-7Part 7: Determination of the mechanical strength of leading wires, shock tubes, connections, crimps and closures. prEN 13763-8Part 8: Determination of resistance to vibration of plain detonators.
21、prEN 13763-9Part 9: Determination of resistance to bending of detonators. prEN 13763-10Part 10: Determination of resistance to torsion of sealing plugs. prEN 13763-11Part 11:Determination of drop resistance of detonators and relays. prEN 13763-12Part 12: Determination of resistance to hydrostatic pr
22、essure. prEN 13763-13Part 13: Determination of resistance of electric detonator to electrostatic discharge. prEN 13763-14Part 14: Determination of resistance of electric detonator to the influence of radio frequency radiation. prEN 13763-15Part 15: Determination of equivalent initiating capability.
23、prEN 13763-16Part 16: Determination of delay accuracy. prEN 13763-17Part 17: Determination of no-fire current of electric detonators. prEN 13763-18Part 18: Determination of series firing current of electric detonators. prEN 13763-19Part 19: Determination of firing pulse of electric detonators. Licen
24、sed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-24:2002 (E) 4 prEN 13763-20Part 20: Determination of total resistance of electric detonators. prEN 13763-21Part 21: Determination of flash-over voltage of electric detonators. prEN 13763-22
25、Part 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. prEN 13763-25Part 25: Determination of transfer capacity of relay and coupling accessories. prEN 13763-26Part 26: Defini
26、tions, methods and requirements for devices and accessories for reliable and safe function of detonators and relays. prCEN/TS 13763-27Part 27: Definitions, methods and requirements for electronic initiation system. Annex A is informative. According to the CEN/CENELEC Internal Regulations, the nation
27、al standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingd
28、om. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-24:2002 (E) 5 1 Scope This European Standard specifies methods of determining the electrical insulation resistance (non-conductivity) and the electrical flash-over distance of shoc
29、k tubes for use with non-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, and the publications are listed hereafter. For dated
30、 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 (including amendments). prEN 13857-1, Explosives for
31、 civil uses Part 1: Terminology. EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:1999). IEC 60093:1980, Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials. IEC 60167:1964, Methods of
32、 test for the determination of the insulation resistance of solid insulating materials. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in prEN 13857-1 apply. 4 Apparatus 4.1 Determination of electrical insulation resistance 4.1.1Meter for measurin
33、g electrical insulation resistance, conforming to the requirements in IEC 60093:1980, clause 5. 4.1.2Voltage source, capable of applying at least 500 V d.c. with no more than 2 % deviation. 4.1.3Conditioning chamber, capable of being maintained at (20 ? 2) C and (50 ? 5) % relative humidity. 4.2 Det
34、ermination of electrical flash-over distance 4.2.1Voltage source, capable of applying 10 kV d.c. with no more than 3 % deviation and with the current output limited to no more than 5 mA. 4.2.2Sensing device, to detect when an electrical flash-over has occurred. 4.2.3Two needle electrodes, with a dia
35、meter of 60 % to 80 % of the shock tubes internal diameter, made from stainless steel and having rounded ends. NOTEThe rounded ends are needed to avoid corona discharges, but do not need precise specification. 4.2.4Test rig, comprising an electrically insulated mounting arrangement to hold the test
36、piece in position, a fixed support for one needle electrode and a moveable support with a linear measuring scale for the other needle electrode, as shown in Figure 1. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-24:2002 (E) 6 Key
37、 1 Fixed electrode 2 Test piece 3 Movable electrode 4 Electrode support 5 Test piece support 6 Movable electrode support Figure 1 - Test rig 5 Test pieces 5.1 Determination of electrical insulation resistance Select 30 lengths of shock tube each of (100 ? 10) mm. If the shock tubes are assembled wit
38、h detonators, the lengths shall be taken from 30 detonators of the same specific type. If the detonators form part of a series with different delay times, select the test pieces from 30 detonators with delay times as evenly distributed throughout the series as possible. 5.2 Determination of electric
39、al flash-over distance Select 30 lengths of shock tube each of (100 ? 10) mm. If the shock tubes are assembled with detonators, the lengths shall be taken from 30 detonators of the same specific type. If the detonators form part of a series with different delay times, select the test pieces from 30
40、detonators with delay times as evenly distributed throughout the series as possible. NOTEAlternatively, the length of the test piece can be determined by a preliminary test to determine the maximum flash- over distance, in which case the length of the test piece should be at least 10 mm longer than
41、this distance. 6 Procedure 6.1 Preparation of test pieces Condition the test pieces for 24 h at (20 ? 2) C and (50 ? 5) % relative humidity. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-24:2002 (E) 7 6.2 Determination of electric
42、al insulation resistance Measure the insulation resistance of the test pieces according to IEC 60167:1964 by using conducting paint electrodes and by applying a voltage of at least 500 V d.c. 6.3 Determination of electrical flash-over distance Place the test piece in the mounting arrangement and ins
43、ert a needle electrode at least 5 mm into each end as shown in Figure 1. Apply the test voltage of 10 kV to the needle electrodes. Slowly decrease the distance between the needle electrodes by inserting the movable electrode further into the test piece. Stop moving the needle electrode as soon as el
44、ectrical flash-over occurs. Record the “flash-over distance“ between the inserted ends of the needle electrodes in millimetres. 7 Test report The test report shall conform to EN ISO/IEC 17025. In addition, the following information shall be given: a)the insulation resistance, in ohms; b)the flash-ov
45、er distance, in millimetres. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-24:2002 (E) 8 Annex A (informative) Range of applicability of the test method The range of applicability of the test method: ? 30 C to + 80 C. Licensed Cop
46、y: sheffieldun sheffieldun, na, Mon Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13763-24:2002 (E) 9 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives. This European Standard has been prepared under a mand
47、ate given to CEN by the European Commission and the European Free Trade Association and supports essential safety requirements of EU Directive 93/15/EEC. WARNING: Other requirements and other EU Directives may be applicable to the product(s) falling within the scope of this standard. The clauses of
48、this standard are likely to support requirements I.1 and II.1.(a) of Directive 93/15/EEC. Compliance with this standard provides one means of conforming to the specific essential requirements of the Directive concerned and associated EFTA regulations. Licensed Copy: sheffieldun sheffieldun, na, Mon
49、Oct 30 02:19:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13763-24:2002 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 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