ASD-STAN PREN 2591-402-2010 Aerospace series Elements of electrical and optical connection Test methods Part 402 Shock (Edition P 2).pdf

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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 2591-402 Edition P 2 November 2010 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: Supersedes ed

2、ition P 1 of June 1992 and will supersede EN 2591-402:1998Descriptors: ENGLISH 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- und Raumfahrt Elektri

3、sche und optische Verbindungselemente Prfverfahren Teil 402: Ste This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry

4、. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification o

5、f the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to im

6、plement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1 November 2010 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domai

7、n Copyright 2010 by ASD-STAN prEN 2591-402:2010 (E) 2 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Preparation of specimens.3 4 Apparatus .4 5 Method 4 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes ca

8、rried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 2591-402:2010 (E) 3 1 Scope This standard specifies a method of assessing the ability of elements of connection to withstand mechanical shock of a

9、 specified severity. It shall be used together with EN 2591-100. This test is based on EN 60068-2-27. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the la

10、test edition of the referenced document (including any amendments) applies. EN 2591-100, Aerospace series 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 examinati

11、on 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 series Elements of electrical and optical connection Test methods Part 408 : Mating and unmating forces EN 60068-2-27, Envi

12、ronmental testing Part 2-27: Tests Test Ea and guidance: Shock 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: mounting method, type of cable and definitio

13、n 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). prEN 2591-402:2010 (E) 4 4 Apparatus 4.1 General The characteristics of the shock appar

14、atus and mounting fixtures shall comply with the following requirements 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. or method B: final peak saw-tooth pu

15、lse as shown in Figure 1 of EN 60068-2-27. The true 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 tech

16、nical specification. 5.2 Severity The pulse shape and 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 1,6 50 50 50 11 3,4 2,7 100 100 100 6 3,7 2

17、,9 300 Not applicable 300 3 5,7 Not applicable 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 discontinuity greater than 1 s shall be observed. prEN 2591-402:2010 (E) 5 5.4 Final measurements (if applicable) The specimens shall be subjected to the following test sequence: EN 2591-101; EN 2591-408.