1、 - - - CEN PREN*2571- G7 73 W 3404587 0054353 734 W AECMA STANDARD prEN 2591-69 NORME AECMA Edition P 1 AECMA NORM December 1993 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.
2、76 Edition approved for publication 1993-1 2-31 UDC : 621.31 6.5:620.1:629.7 Comments should be sent within six months after the date of publication to AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE Descriptors : Aircraft industry, aircraft equipment, co
3、nnecting equipment, test ENGLISH VERSION Aerospace series Elements of electrical and optical connection Test methods Part G9 - Electrical elements Tensile strength of couplers Srie arospatiale Organes de connexion lectrique et optique Mthodes dessais Partie G9 - Organes lectriques Rsistance la tract
4、ion des coupleurs Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverfahren Teil G9 - Elektrische Elemente Zugfestigkeit von Kopplern This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA IAssociation Europenne des Constructeurs de Matriel Arospa
5、tial). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this prestandard, the technical content shall not be changed to an ex
6、tent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European
7、Standard to CEN (European Committee for Standardization) for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX C2 Chairman M. J. Le Cunff I aecma 1993 Page 3 prEN 2591 -G9:1993 1 Scope This standard speci
8、fies a method of checking for tensile strength of couplers in conditions of mechanical and thermal stress. It shall be used together with EN 2591. 2 Normative references EN 2591 Aerospace series - Elements of electrical and optical connection - Test methods - General 1) Aerospace series - Elements o
9、f electrical and optical connection - Test methods - Part B5 - Housing (shell) electrical continuity 2) EN 2591-B5 3 Preparation of specimens 3.1 Cable length shall be adjusted to suit the measuring equipment. The measurement shall be carried out on a component consistent with the product standard.
10、3.2 Unless indicated in the technical specification, the following details shall be specified : - minimum and maximum temperatures; - force. 4 Method Each bus or stub shall be tested individually. Specimens shall be attached by an appropriate means so that force may be applied along the longitudinal
11、 axis of the connection. The test method shall be such that the only stresses affecting the coupler are those generated by the axial force. 4.1 Procedure Specimens shall be maintained at each test temperature for 15 min before applying the force. The force shall be applied on the cable without squee
12、zing the coupler case and increased continuously until the specified value in the technical specification is reached. The rate of application shall not exceed 45 N/s. This value shall be maintained for 2 min at the specified temperatures. 4.2 Requirements - - EN 2591-B5 - Housing (shell) electrical
13、continuity Minimum and maximum forces at rated temperatures as specified in product standard Previous page is blank 1) At the date of publication of this standard, general aspects of elements of optical connection are covered by a draft amendment which is in preparation to the European Standard EN 2591. 2) Published as AECMA Standard at the date of publication of this standard
