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 978-0-626-21411-1 SANS 53763-3:2008Edition 1EN 13763-3:2002Edition 1SOUTH AFRICAN NATIONAL STANDARD Explosives for civil uses Detonators and relays
4、Part 3: Determination of sensitiveness to impact This national standard is the identical implementation of EN 13763-3:2002 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 private bag x191 pretoria 00
5、01 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 53763-3:2008 Edition 1 EN 13763-3:2002 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee StanSA TC 5140.04, E
6、xplosives 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 13763-3September 2002ICS 71.100.30English versionExplosives for civil
7、uses - Detonators and relays - Part 3:Determination of sensitiveness to impactExplosifs usage civil - Dtonateurs et relais - Partie 3:Dtermination de la sensibilit au chocExplosivstoffe fr zivile Zwecke - Znder undVerzgerungselemente - Teil 3: Bestimmung derSchlagempfindlichkeitThis European Standar
8、d 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 the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such n
9、ationalstandards 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 translationunder the responsibility of a CEN member into its own language and noti
10、fied 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,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland
11、 and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2002 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13763-3
12、:2002 ESANS 53763-3:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-3:2002 (E)2ContentspageForeword31 Scope 52 Normative references 53 Terms and definitions54 Apparatus .55 Test pieces66 Procedure .77 Test report 8Annex A (inform
13、ative) Range of applicability of the test method.9Annex B (normative) Illustrations of the BAM fall-hammer 10Annex ZA (informative) Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives. .15SANS 53763-3:2008This s tandard may only be used and printed
14、 by approved subscription and freemailing clients of the SABS .EN 13763-3:2002 (E)3ForewordThis document (EN 13763-3:2002) 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 n
15、ational 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 under a mandate given to CEN by the European Commission and theEuropea
16、n 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 series of standards with the generic title Explosives for civil uses Det
17、onatorsand 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.prEN 13763-4 Part 4: Determination of resistance to abrasion of leading wires and shock tubes.prEN 13763-5 Part 5: Determination of resistance to
18、 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: Determination of the mechanical strength of leading wires, shock tubes, connections,crimps and closures.prEN 13763-8 Part 8: Determi
19、nation 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 resistance to torsion of sealing plugs.prEN 13763-11 Part 11: Determination of drop resistance of detonators and relays.prEN 13763-1
20、2 Part 12: Determination of resistance to hydrostatic pressure.prEN 13763-13 Part 13: Determination of resistance of electric detonator to electrostatic discharge.prEN 13763-14 Part 14: Determination of resistance of electric detonator to the influence of radio frequencyradiation.prEN 13763-15 Part
21、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 electric detonators.prEN 13763-18 Part 18: Determination of series firing current of electric detonators.prEN 13763-19 Part 19: Dete
22、rmination of firing pulse of electric detonators.prEN 13763-20 Part 20: Determination of total resistance of electric detonators.SANS 53763-3:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-3:2002 (E)4prEN 13763-21 Part 21: Deter
23、mination of flash-over voltage of electric detonators.prEN 13763-22 Part 22: Determination of capacitance, insulation resistance and insulation breakdown of leadingwires.EN 13763-23 Part 23: Determination of the shock-wave velocity of shock tube.EN 13763-24 Part 24: Determination of the non-conducti
24、vity 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 detonators and relays.prCEN/TS 13763-27 Part 27: Definitions, metho
25、ds and requirements for electronic initiation system.Annex A is informative and annex B is normative.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, Denm
26、ark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.SANS 53763-3:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-3:2002
27、 (E)51 ScopeThis European Standard specifies methods for checking that plain detonators, electric detonators, non-electricdetonators, surface connectors, shock tubes and detonating cord relays will not explode when subjected to animpact under specified conditions.2 Normative referencesThis European
28、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 of these publications apply
29、 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).prEN 13857-1, Explosives for civil uses Part 1: Terminology.prEN 13763-1, Explosives for civil uses. Detonators and
30、relays Part 1: Requirements.EN ISO 4957:1999, Tool steels (ISO 4957:1999).EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC17025:1999).ISO 1052:1982, Steels for general engineering purposes.ISO 683-9:1988, Heat-treatable steels, alloy steels a
31、nd free-cutting steels Part 9: Wrought free-cutting steels.ISO 683-17:1999, Heat-treated steels, alloy steels and free-cutting steels Part 17: Ball and roller bearing steels.3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in prEN 13857-1 and the fol
32、lowingapply:3.1drop heightdistance between the lowest part of the striking head of the drop weight and the uppermost part of the percussioncylinder3.2ignition systemelectrical resistance heating wire surrounded by an incendiary material4 Apparatus4.1 Electric, non-electric and plain detonators4.1.1
33、GeneralThe apparatus is a drop hammer (e.g. the BAM fall-hammer), comprising a cast steel block with base, a main anviland an intermediate anvil, a locating plate, a guide piece, a percussion cylinder, a column, guides and a dropweight with a release mechanism and a striking head.SANS 53763-3:2008Th
34、is s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-3:2002 (E)64.1.2 Drop hammerA steel anvil is screwed onto the steel block and cast base. The steel used for the intermediate anvil and the mainanvil is of the same type as for the strikin
35、g head of the drop weight (see 4.1.3.). The percussion cylinder is a rollerbearing with polished surfaces and rounded edges, and is made of steel of type B1 100Cr6 as defined by ISO 683-17:1999. The support onto which the column is fixed (made from a seamless drawn steel tube) is bolted to the backo
36、f the steel block.NOTE Figure B.1 shows the arrangement of the BAM fall-hammer (the anvil, the steel block and the column)Figure B.2 shows the arrangement of the lower part of the BAM fall-hammer.Figure B.3 shows the dimensions of the guide piece and the percussion cylinder.The two guides which are
37、fixed to the column by means of three cross pieces are fitted with a toothed rack, to limitthe rebound of the drop weight, and a moveable graduated scale for adjusting the drop height. The guides shall bevertical.The drop weight release mechanism is adjustable between the guides and is clamped to th
38、em by the operation of alever mechanism.The apparatus shall be firmly secured to a concrete block, with minimum dimensions of (0,6 0,6 0,6) m, bymeans of four anchoring bolts.4.1.3 Drop weightThe drop weight has a mass of (2000 2) g and is provided with two locating grooves to hold it between the gu
39、idesas it drops. A suspension spigot, a removable cylindrical striking head and a rebound catch are screwed onto thedrop weight.NOTE Figure B.4 shows the design of the drop weight of the BAM fall-hammer.The removable striking head is made from hardened steel conforming to type 90 MnCrV8 in EN ISO 49
40、57:1999with polished surface and a diameter of 25 mm.The release mechanism shall be controlled remotely.4.2 Detonating cord relays, surface connectors and shock tubeImpact testing apparatus, consisting of a (5,0 0,01) kg steel hammer which can be dropped freely from a setheight, inside a guide tube
41、onto a steel plate and anvil containing the device to be tested. The anvil shall rest on aconcrete floor.NOTE Figure B.5 shows the arrangement of the impact testing apparatus.The hammer is made of steel of type B1 100Cr6 as defined by ISO 683-17:1999. The plates are made of steel oftype FE 490-2 as
42、defined by ISO 1052:1982. The anvil is made of steel of type 46 S 20 as defined by ISO 683-9:1988.5 Test pieces5.1 Electric detonatorsSelect 50 detonators of a specific type, whose fuseheads or other ignition systems have same composition andconstruction of relevant parts around the fusehead or othe
43、r bridgwire ignition system, and whose primary charges(or the element which performs the same function as a primary charge) have the same composition and design. Ifthe detonators form part of a series with different delay times, select 50 detonators with delay times distributed asevenly as possible
44、throughout the series.SANS 53763-3:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .EN 13763-3:2002 (E)75.2 Non-electric detonatorsSelect 25 detonators of a specific type, whose primary charges (or the elements which perform the same funct
45、ionas a primary charge) have the same composition and design. If the detonators form part of a series with differentdelay times, select 25 detonators with delay times distributed as evenly as possible throughout the series.5.3 Plain detonatorsSelect 25 detonators of a specific type, whose primary ch
46、arges have the same composition and design.5.4 Detonating cord relays and surface connectorsSelect 25 relays or surface connectors of the same design. If the relays or surface connectors form part of a serieswith different delay times, select 50 relays or surface connectors with delay times distribu
47、ted as evenly as possiblethroughout the series.5.5 Shock tubeSelect 25 pieces, each with a length of at least 200 mm, of a specific type of shock tube.6 Procedure6.1 GeneralCarry out the Bruceton up-and-down test, as described in prEN 13763-1.If no explosion occurs at the maximum height of the appar
48、atus (2 m for the apparatus described in 4.1 and 12 m forthe apparatus described in 4.2), test the next piece at the same height. Continue the procedure until all test pieceshave been tested.6.2 Electric detonators6.2.1 Impact on the fusehead or other ignition systemTest 25 detonators in this positi
49、on. Mark the location of the fusehead or other ignition system on the outside of thedetonator and place the detonator in the impact testing apparatus (4.1), so that the fusehead or other ignitionsystem is positioned between the percussion cylinder and the intermediate anvil. Drop the hammer from thespecified height (with a tolerance of 5 mm) and observe whether the detonator explodes.6.2.2 Impact on the primary chargeTest 25 detonators in this position. Mark the location of the primary charge on the outside of the detonator andplace the detonator in the im
