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 978-0-626-21732-7 SANS 53763-24:2008Edition 1EN 13763-24:2002Edition 1SOUTH AFRICAN NATIONAL STANDARD Explosives for civil uses Detonators and relay
4、s Part 24: Determination of the electrical non-conductivity of shock tube This national standard is the identical implementation of EN 13763-24:2002 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 pr
5、ivate bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 53763-24:2008 Edition 1 EN 13763-24:2002 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Co
6、mmittee 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 13763-24September 2002ICS 71.100.30English
7、 versionExplosives for civil uses - Detonators and relays - Part 24:Determination of the electrical non-conductivity of shock tubeExplosifs usage civil - Dtonateurs et relais - Partie 24:Dtermination de la non-conductivit lectrique du tube transmission dondes de chocExplosivestoffe fr zivile Zwecke
8、- Znder undVerzgerungselemente - Teil 24: Bestimmung derelektrischen Nichtleitfhigkeit von ZndschluchenThis European Standard was approved by CEN on 1 August 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard
9、 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 European Standard exists in three official versions (English, French, German)
10、. 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 national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, F
11、rance, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 200
12、2 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13763-24:2002 ESANS 53763-24:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-24:2002 (E)2ContentspageForeword31
13、Scope 52 Normative references 53 Terms and definitions54 Apparatus .55 Test pieces66 Procedure .67 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 Directi
14、ves. .9SANS 53763-24:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-24:2002 (E)3ForewordThis document (EN 13763-24:2002) has been prepared by Technical Committee CEN/TC 321 “Explosives for civiluses“, the secretariat of which is
15、 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 March 2003, and conflicting national standards shall be withdrawn at the latest byMarch 2003.This European Standard has been prepared
16、under a mandate given to CEN by the European Commission and theEuropean Free Trade Association, and supports essential requirements 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 se
17、ries 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: Requirements.EN 13763-2 Part 2: Determination of thermal stability.EN 13763-3 Part 3: Determination of sensitiveness to impact.prEN 13763-4 Pa
18、rt 4: Determination of resistance to abrasion of leading wires and shock tubes.prEN 13763-5 Part 5: Determination of resistance to cutting damage of leading wires and shock tubes.prEN 13763-6 Part 6: Determination of resistance to cracking in low temperatures of leading wires.prEN 13763-7 Part 7: De
19、termination of the mechanical strength of leading wires, shock tubes, connections,crimps and closures.prEN 13763-8 Part 8: Determination of resistance to vibration of plain detonators.prEN 13763-9 Part 9: Determination of resistance to bending of detonators.prEN 13763-10 Part 10: Determination of re
20、sistance to torsion of sealing plugs.prEN 13763-11 Part 11:Determination of drop resistance of detonators and relays.prEN 13763-12 Part 12: Determination of resistance to hydrostatic pressure.prEN 13763-13 Part 13: Determination of resistance of electric detonator to electrostatic discharge.prEN 137
21、63-14 Part 14: Determination of resistance of electric detonator to the influence of radio frequencyradiation.prEN 13763-15 Part 15: Determination of equivalent initiating capability.prEN 13763-16 Part 16: Determination of delay accuracy.prEN 13763-17 Part 17: Determination of no-fire current of ele
22、ctric detonators.prEN 13763-18 Part 18: Determination of series firing current of electric detonators.prEN 13763-19 Part 19: Determination of firing pulse of electric detonators.SANS 53763-24:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS
23、 .EN 13763-24:2002 (E)4prEN 13763-20 Part 20: Determination of total resistance of electric detonators.prEN 13763-21 Part 21: Determination of flash-over voltage of electric detonators.prEN 13763-22 Part 22: Determination of capacitance, insulation resistance and insulation breakdown of leadingwires
24、.EN 13763-23 Part 23: Determination of the shock-wave velocity of shock tube.prEN 13763-25 Part 25: Determination of transfer capacity of relay and coupling accessories.prEN 13763-26 Part 26: Definitions, methods and requirements for devices and accessories for reliable and safefunction of detonator
25、s and relays.prCEN/TS 13763-27 Part 27: Definitions, methods and requirements for electronic initiation system.Annex A is informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austr
26、ia, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.SANS 53763-24:2008This s tandard may only be used and printed by approved subscription and freemailing cl
27、ients of the SABS .EN 13763-24:2002 (E)51 ScopeThis European Standard specifies methods of determining the electrical insulation resistance (non-conductivity)and the electrical flash-over distance of shock tubes for use with non-electric detonators.2 Normative referencesThis European Standard incorp
28、orates 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 of these publications apply to this Europe
29、anStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).prEN 13857-1, Explosives for civil uses Part 1: Terminology.EN ISO/IEC 17025, General requirements for the competence of testing an
30、d calibration laboratories (ISO/IEC17025:1999).IEC 60093:1980, Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials.IEC 60167:1964, Methods of test for the determination of the insulation resistance of solid insulating materials.3 Terms and definiti
31、onsFor the purposes of this European Standard, the terms and definitions given in prEN 13857-1 apply.4 Apparatus4.1 Determination of electrical insulation resistance4.1.1 Meter for measuring electrical insulation resistance, conforming to the requirements in IEC 60093:1980,clause 5.4.1.2 Voltage sou
32、rce, capable of applying at least 500 V d.c. with no more than 2 % deviation.4.1.3 Conditioning chamber, capable of being maintained at (20 2) C and (50 5) % relative humidity.4.2 Determination of electrical flash-over distance4.2.1 Voltage source, capable of applying 10 kV d.c. with no more than 3
33、% deviation and with the currentoutput limited to no more than 5 mA.4.2.2 Sensing device, to detect when an electrical flash-over has occurred.4.2.3 Two needle electrodes, with a diameter of 60 % to 80 % of the shock tubes internal diameter, made fromstainless steel and having rounded ends.NOTE The
34、rounded ends are needed to avoid corona discharges, but do not need precise specification.4.2.4 Test rig, comprising an electrically insulated mounting arrangement to hold the test piece in position, afixed support for one needle electrode and a moveable support with a linear measuring scale for the
35、 other needleelectrode, as shown in Figure 1.SANS 53763-24:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-24:2002 (E)6Key1 Fixed electrode2 Test piece3 Movable electrode4 Electrode support5 Test piece support6 Movable electrode
36、supportFigure 1 - Test rig5 Test pieces5.1 Determination of electrical insulation resistanceSelect 30 lengths of shock tube each of (100 10) mm. If the shock tubes are assembled with detonators, thelengths shall be taken from 30 detonators of the same specific type. If the detonators form part of a
37、series withdifferent delay times, select the test pieces from 30 detonators with delay times as evenly distributed throughoutthe series as possible.5.2 Determination of electrical flash-over distanceSelect 30 lengths of shock tube each of (100 10) mm. If the shock tubes are assembled with detonators
38、, thelengths shall be taken from 30 detonators of the same specific type. If the detonators form part of a series withdifferent delay times, select the test pieces from 30 detonators with delay times as evenly distributed throughoutthe series as possible.NOTE Alternatively, the length of the test pi
39、ece 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 this distance.6 Procedure6.1 Preparation of test piecesCondition the test pieces for 24 h at (20 2) C and (50 5) % relative humidi
40、ty.SANS 53763-24:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-24:2002 (E)76.2 Determination of electrical insulation resistanceMeasure the insulation resistance of the test pieces according to IEC 60167:1964 by using conductin
41、g paintelectrodes and by applying a voltage of at least 500 V d.c.6.3 Determination of electrical flash-over distancePlace the test piece in the mounting arrangement and insert a needle electrode at least 5 mm into each end asshown in Figure 1. Apply the test voltage of 10 kV to the needle electrode
42、s. Slowly decrease the distance betweenthe needle electrodes by inserting the movable electrode further into the test piece. Stop moving the needleelectrode as soon as electrical flash-over occurs. Record the “flash-over distance“ between the inserted ends of theneedle electrodes in millimetres.7 Te
43、st reportThe 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-over distance, in millimetres.SANS 53763-24:2008This s tandard may only be used and printed by approved subscription and freemailing cl
44、ients of the SABS .EN 13763-24:2002 (E)8Annex A(informative)Range of applicability of the test methodThe range of applicability of the test method: 30 C to + 80 C.SANS 53763-24:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-24:2
45、002 (E)9Annex 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 safety r
46、equirements 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 standard.The clauses of 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 theDirective concerned and associated EFTA regulations.SANS 53763-24:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .
