1、CEN PREN*Z59L- FCL 93 = 3404589 0046658 427 Edition approved for publication AECMA STANDARD NORME AECMA AECMA NORM Comments should be sent within six months after the date of publication to C2 Chairman prEN 2591 -FC1 Edition P 1 June 1993 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL A
2、ROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 UDC : Descriptors : ENGLISH VERSION Aerospace series Elements of electrical and optical connection Test methods Part FCI - Optical elements Endurance at temperature Srie arospatiale Luft-
3、 und Raumfahrt Mthodes dessais Prfverfahren Endurance en temprature Temperaturbestndigkeit Organes de connexion lectrique et optique Partie FCI - Organes optiques Elektrische und optische Verbindungselemente Teil FC1 - Optische Elemente This “Aerospace Series Prestandard has been drawn up under the
4、responsibility of AECMA IAssociation Europenne des Constructeurs de Matriel Arospatial). 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 pu
5、blication 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 standard. After examination and signature of the AECMA Standard Checking Centre INPS) and formal agreement of the O
6、fficial Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. 1993-06-30 AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE Mr. Le Cunff aecma 1993 prEN 2591 -FC1 P
7、age 3 1 Scope This standard specifies a method of checking the ability of optical connection elements (including permanent connections) and fibre optic couplers to withstand elevated temperatures. It shall be used together with EN 2591. 2 Normative references EN 2591 EN 2591-B5 EN 2591-CI EN 2591-FI
8、 EN 2591-F2 EN 2591-FA1 EN 2591-FD9 Aerospace series - Elements of electrical and optical connection - Test methods - General 1) Aerospace series - Elements of electrical and optical connection - Test methods - Part 85 - Housing (shell) electrical continuity 2) Aerospace series - Elements of electri
9、cal and optical connection - Test methods - Part CI - Endurance at temperature 3) Aerospace series - Elements of electrical and optical connection - Test methods - Part FI - Optical elements - Insertion loss 3) Aerospace series - Elements of electrical and optical connection - Test methods - Part F2
10、 - Optical elements - Variation of attenuation and optical discontinuity 3) Aerospace series - Elements of electrical and optical connection - Test methods - Part FA1 - Optical elements - Visual examination 3) Aerospace series - Elements of electrical and optical connection - Test methods - Part FD9
11、 - Optical elements - Contact retention in insert 4) 3 Preparation of specimens 3.1 Specimens shall be fitted with normal accessories and terminated in accordance with the product standard. Cavities with unterminated contacts shall have filler plugs fitted (where applicable). The contacts shall be c
12、onnected in series and the optical connection elements shall be mated (where applicable). 3.2 Unless otherwise indicated in the technical specification, the following details shall be specified : See EN 2591-CI (if applicable) plus : - - - type and length of cable/fibre; maximum value of insertion l
13、oss; maximum permissible variation of attenuation. 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
14、 this standard. 3) Published as AECMA Prestandard at the date of publication of this standard. 4) In preparation at the date of publication of this standard. Previous page is blank CEN PREN*:259L- FCL 93 3404589 004bbb0 085 m prEN 2591-FC1 Page 4 4 Apparatus See EN 2591-CI and EN 2591-F2 plus : - a
15、climatic chamber. 5 Method 5.1 Test conditions Specimens with optical contacts shall be subjected to test method B of EN 2591-CI without load. Specimens with optical contacts and electrical contacts shall be subjected to test method A of EN 2591-CI. 5.2 Procedure Connect the specimens to the LLS and
16、 LDS systems. Place the specimens in the chamber for a period as specified in the product standard. Proceed with the test and monitor continuously the variation of attenuation (EN 2591 -F2 method A) throughout the test. While the temperature is being increased, there shall be no variation of attenua
17、tion attributable to the connection in excess of that defined in the product standard. 5.3 Recovery As in EN 2591 -CI. 5.4 Final measurements and requirements For each optical circuit (if applicable). The specimens shall be subjected to the sequence of tests listed below and shall satisfy the requirements of the product standard. - EN 2591-FI - Insertion loss - Method 1 - EN 2591-FA1 - Visual examination - - EN 2591-85 - Housing (shell) electrical continuity (if applicable) EN 2591-FD9 - Contact retention in insert (if applicable)
