1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 2591-402:2012Aerospace series Elementsof electrical and opticalconnection Test methodsPart 402: ShockBS EN 2591-402:2012 BRITISH STANDARDNational forewordThis British Stand
2、ard is the UK implementation of EN 2591-402:2012.It supersedes BS EN 2591-402:1998 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can be
3、obtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 66949 1ICS 49.060; 49.090Complia
4、nce with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2012.Amendments issued since publicationDate Text affectedBS EN 2591-402:2012EUROPEAN STANDARD NORME EUROPENNE EUR
5、OPISCHE NORM EN 2591-402 July 2012 ICS 49.060; 49.090 Supersedes EN 2591-402:1998English Version Aerospace series - Elements of electrical and optical connection - Test methods - Part 402: Shock Srie arospatiale - Organes de connexion lectrique et optique - Mthodes dessais - Partie 402: Chocs Luft-
6、und Raumfahrt - Elektrische und optische Verbindungselemente - Prfverfahren - Teil 402: Ste This European Standard was approved by CEN on 23 March 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat
7、us 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Ge
8、rman). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croat
9、ia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and Un
10、ited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2591-402:2
11、012: EBS EN 2591-402:2012EN 2591-402:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Preparation of specimens . 44 Apparatus . 54.1 General 54.2 Shock characteristics 55 Method 55.1 Initial measurements (if applicable) 55.2 Severity . 55.3 Procedure . 55.4 Final measurements (i
12、f applicable) 6BS EN 2591-402:2012EN 2591-402:2012 (E) 3 Foreword This document (EN 2591-402:2012) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, thi
13、s Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the
14、latest by January 2013, and conflicting national standards shall be withdrawn at the latest by January 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or a
15、ll such patent rights. This document supersedes EN 2591-402:1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Es
16、tonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 2591-402:2012EN
17、 2591-402:2012 (E) 4 1 Scope This European Standard specifies a method of assessing the ability of elements of connection to withstand mechanical shock of a specified severity. It should be used together with EN 2591-100. This test is based on EN 60068-2-27. 2 Normative references The following docu
18、ments, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2591-100, Aerospace se
19、ries Elements of electrical and optical connection Test methods Part 100: General EN 2591-101, Aerospace series Elements of electrical and optical connection Test methods Part 101: Visual examination EN 2591-204, Aerospace series Elements of electrical and optical connection Test methods Part 204: D
20、iscontinuity of contacts in the microsecond range EN 2591-408, Aerospace series Elements of electrical and optical connection Test methods Part 408: Mating and unmating forces EN 60068-2-27:2009, Environmental testing Part 2-27: Tests Test Ea and guidance: Shock (IEC 60068-2-27:2008) 3 Preparation o
21、f specimens 3.1 Specimens shall be prepared according to the technical specification. 3.2 Unless specified in the technical specification, the following details shall be stated: mounting method, type of cable and definition of specimen wiring; initial measurements (if applicable); pulse shape (metho
22、d A or B); test severity; number of axes, if other than three; number of shocks in each direction; final measurements (if applicable). BS EN 2591-402:2012EN 2591-402:2012 (E) 5 4 Apparatus 4.1 General The characteristics of the shock apparatus and mounting fixtures shall comply with the following re
23、quirements when loaded for the test. 4.2 Shock characteristics The shock apparatus shall be capable of generating shocks as follows: method A: half sine wave shape as shown in Figure 2 of EN 60068-2-27:2009. or method B: final peak saw-tooth pulse as shown in Figure 1 of EN 60068-2-27:2009. The true
24、 value of the velocity change shall be within 10 % of the nominal pulse. The specimens shall be mounted as specified in the technical specification. 5 Method 5.1 Initial measurements (if applicable) They shall be carried out as specified in the technical specification. 5.2 Severity The pulse shape a
25、nd severity shall be as stated in the technical specification (See Table 1). Table 1 Severity Acceleration (peak value) Duration Velocity change gnms m/s Method A Method B Method A Method B 30 30 30 11 2,1 1,650 50 50 11 3,4 2,7 100 100 100 6 3,7 2,9300 Not applicable 300 3 5,7 Not applicable 5.3 Pr
26、ocedure The specimens shall be subjected to a specified number of successive shocks along the specified axes and in each direction. Unless otherwise specified, measurements to EN 2591-204 (Method B) shall be carried out on the contacts and (if applicable) shielding connections. No discontinuity grea
27、ter than 1 s shall be observed. BS EN 2591-402:2012EN 2591-402:2012 (E) 6 5.4 Final measurements (if applicable) The specimens shall be subjected to the following test sequence: EN 2591-101; EN 2591-408. This page deliberately left blankBSI is the independent national body responsible for preparing
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