1、ENGLISH VERSION Edition approved for publication 1993-1 0-29 Aerospace series Elements of electrical and optical connection Test methods Part FDI - Optical elements Acceleration steady state Comments should be sent within six months after the date of publication to AECMA Technopolis - 175, rue Jean-
2、Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE C2 Chairman M. J. Le Cunff Srie arospatiale Organes de connexion lectrique et optique Mthodes dessais Partie FD1 - Organes optiques Acclration constante Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverf a h ren Teil FD
3、I - Optische Elemente Konstante Beschleunigung This “Aerospace Series Prestandard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approved by th
4、e 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 extent that interchangeability is affected, physically or functionally, without re-identification of the stand
5、ard. After examination and signature of the AECMA Standard Checking Centre INPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Nota - Extra copies can be supplie
6、d by B.N.A.E. - Technooolis 54 - 199, rue Jean-Jacaues Rousseau - 921 38 ISCY-LES-MOULINEAUX CEDEX ?EN PREN+Z59L- FDL 93 3404589 0050857 807 = prEN 2591-FD1 Page 3 1 Scope This standard specifies a method of determining the ability of optical connection elements (including permanent connections) and
7、 fibre optic couplers to withstand continuous acceleration. It shall be used together with EN 2591. 2 Normative references EN 2591 Aerospace series - Elements of electrical and optical connection - Test EN 2591-D1 Aerospace series - Elements of electrical and optical connection - Test EN 2591-D8 Aer
8、ospace series - Elements of electrical and optical connection - Test EN 2591-F2 Aerospace series - Elements of electrical and optical connection - Test EN 2591-FA1 Aerospace series - Elements of electrical and optical connection - Test methods - General methods - Part D1 - Acceleration steady state
9、2, methods - Part D8 - Mating and unmating forces 2, methods - Part F2 - Variation of attenuation and optical discontinuity 2, methods - Part FA1 - Visual examination 2, 3 Preparation of specimens 3.1 Specimens shall be fitted with normal accessories and terminated with optical cable/fibre in accord
10、ance with the product standard. 3.2 Unless indicated in the technical specification, the following details shall be specified : See EN 2591-01 (if applicable) plus : - maximum permissible variation of attenuation; - type and length of cable/fibre. 4 Apparatus See EN 2591 -Dl and EN 2591 -F2. 1) At t
11、he 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 Prestandard at the date of publication of this standard Previous page is blank CEN PRENx259L- FD
12、L 93 m 3404589 0050858 743 m PrEN 2591-FD1 Page 4 5 Method 5.1 Initial measurements (if applicable) EN 2591-Dl. 5.2 Acceleration level EN 2591-D1. 5.3 Procedure Unless otherwise specified in the product standard, the specimens shall be submitted to the specified acceleration for 5 min along each dir
13、ection of the three tri-rectangular axes (total 30 min). The variation of attenuation (EN 259 1 -F2) shall be monitored continuously throughout the test and shall not exceed the value specified in the product standard. The specimens shall reach the specified acceleration value within 1 min. 5.4 Final measurements and requirements (if applicable) - The specimens shall satisfy requirements in the product standard - EN 2591-FA1 - Visual examination - EN 2591-D8 - Mating and unmating forces
