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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-402:1998 Elements of electrical and optical connection Test methods Part 402: Shock The European Standard EN 2591-402:1998 has the status of a British Standard ICS 49.060 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Unco
2、ntrolled Copy, (c) BSI BS EN 2591-402:1998 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 November 1998 BSI 05-1999 ISBN 0 580 30705 0 National foreword This
3、 British Standard is the English language version of EN 2591-402:1998. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic, electrical and fibre optic technology, to Subcommittee ACE/6/3, Aerospace connectors, which has the responsibility to: aid enq
4、uirers to understand the text; present to the responsible 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. A list of organizations
5、represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Cor
6、respondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does
7、not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This wi
8、ll be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2591-402:1998 BSI 05-1999i Contents Page National forewordInside
9、 front cover Foreword2 Text of EN 2591-4023 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE
10、 EUROPISCHE NORM EN 2591-402 August 1998 ICS 49.060 Descriptors: Aircraft industry, aircraft equipment, connecting equipment, test English version Aerospace series Elements of electrical and optical connection Test methods Part 402: Shock Srie arospatiale Organes de connexion lectrique et optique Mt
11、hodes dessais Partie 402: Chocs Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverfahren Teil 402: Ste This European Standard was approved by CEN on 23 February 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giv
12、ing 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 Central Secretariat or to any CEN member. This European Standard exists in three official vers
13、ions (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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium,
14、Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat:
15、rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2591-402:1998 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-402:1998 BS
16、I 05-1999 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official
17、Services of the member countries of AECMA, 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 latest by February 1999, and conflicting national standards shall be withdrawn at
18、 the latest by February 1999. 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, Germany, Greece, Iceland, Ireland, Italy, Luxemb
19、ourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Preparation of specimens3 4Apparatus3 5Method6 Figure 1 Half sinusoidal pulse Method A4 Figure 2 Final peak saw-tooth pulse Method B5 Table 16 Licensed Copy
20、: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-402:1998 BSI 05-19993 1 Scope This standard specifies a method of assessing the ability of elements of connection to withstand mechanical shock of a specified severity. It shall be used together wit
21、h EN 2591. 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 references, subsequent amendments to
22、 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. EN 2591, Aerospace series Elements of electrical and optical connection Test methods Gen
23、eral. 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: Discontinuity of contacts in the microsecond range. EN 2591-408, Aerospace s
24、eries Elements of electrical and optical connection Test methods Part 408: Mating and unmating forces1). 3 Preparation of 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: mo
25、unting method, type of cable and definition of specimen wiring; initial measurements (if applicable); pulse shape (method A or B); test severity; number of axes, if other than three; number of shocks in each direction; final measurements (if applicable). 4 Apparatus The characteristics of the shock
26、apparatus and mounting fixtures shall comply with the following requirements when loaded for the test. 4.1 Shock characteristics The shock apparatus shall be capable of generating shocks of half sine wave shape (method A) or a final peak saw-tooth pulse (method B) as shown in Figure 1 and Figure 2 w
27、ithin tolerances as defined by the area shown within solid lines. The true value of the velocity change shall be within 10 % of the nominal pulse. 1) Published as AECMA Prestandard at the date of publication of this standard Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2
28、006, Uncontrolled Copy, (c) BSI EN 2591-402:1998 4 BSI 05-1999 Figure 1 Half sinusoidal pulse Method A Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-402:1998 BSI 05-19995 Figure 2 Final peak saw-tooth pulse Method B Licensed Copy:
29、sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-402:1998 6 BSI 05-1999 4.2 Mounting The specimens shall be mounted as specified. 5 Method 5.1 Initial measurements (if applicable) They shall be carried out as specified. 5.2 Severity See Table 1. Tab
30、le 1 5.3 Procedure 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 discont
31、inuity greater than 1 4s shall be observed. 5.4 Final measurements (if applicable) The specimens shall be subjected to the following test sequence: EN 2591-101; EN 2591-408. Severity Acceleration (peak value) m/s2 Duration D ms Velocity change m/s Method AMethod BMethod AMethod B 303030112,061,62 50
32、5050113,432,69 10010010063,742,94 300Not applicable30035,69Not applicable Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:02:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN
33、2591-402:1998 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 Bri
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