1、A. E. C. M .A. STAN DAR D NORME A.E.C.M.A. A.E.C.M.A. NORM Approved by COMITE DE NORMALISATION of A.E.C.M.A. 1991-04-10 prEN 2591 Part DI Edition 1 May 1991 The equivalent versions in French and German languages can be supplied by 8.N.A.E - Technopolis 54 - 199. rue Jean-Jacques Rousseau 92138 ISSY
2、LES MOULINEAUX CEDEX - FRANCE EDITE PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AEROSPATIAL 88, boulevard Malesherbes, 75008 PARIS - TEL. 45-63-82-85 UDC : Key words : Aerospace industry, aircraft equipment, elements of electrical and optical connection, test ENGLISH VERSION Aerospace se
3、ries Elements of electrical and optical connection Test methods Part DI - Acceleration, steady state Srie arospatiale Luft- und Raumfahrt lectrique et optique Verbindungselemente Organes de connexion Elektrische und optische Mthodes dessais Prfverfahren Partie DI - Acclration constante Teil DI - Kon
4、stante Beschleunigung This Aerospace series standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on yellow paper in three equivalent versions (English, French, German). It will be submitted as a draft European S
5、tandard to CEN (European Committee for Standardization) for final vote. I I r 0 aecrna 1991 iCEN -*PREN*2593 93 3404589 0032424 b prEN 2591-Dl Page 3 1 Scope and field of application This standard specifies a method to determine the ability of an element of with EN 2591. I connection to withstand st
6、eady-state accelerations. It shall be used together 2 References EN 2591 Aerospace series - Elements of electrical and optical connection - Test methods - General 1) EN 2591-Al Aerospace series - Elements of electrical and optical connection - Test methods - Visual examination 2) EN 2591-B1 Aerospac
7、e series - Elements of electrical and optical connection - Test methods - Contact: resistance - Low level 1) EN 2591-BZ 1 EN 2591-B4 Aerospace series - Elements of electrical and optical connection - Test methods - Contact resistance at rated current 2) Aerospace series - Elements of electrical and
8、optical connection - Test methods - Discontinuity of contacts in the microsecond range 2) Aerospace series - Elements of electrical and optical connection - Test methods - Mating and unmating forces 2) EN 2591-D8 3 Preparation of the specimens 3.1 mechanical features (fixing, locking device.) are fu
9、lly used, and wired, They shall be fitted with their standard accessories, mounted so that all The test shall be carried out on mated specimens. 3.2 Unless indicated in the technical specification or EN 2591, the following details shall be specified : - Method of mounting and wiring of the specimen
10、- Initial measurements and requirements - Acceleration level - Requirements for final measurements - Number of directions 4 Apparatus The test shall be carried out in a centrifugal machine capable of producing the acceleration values specified. The acceleration gradient in the specimen shall not exc
11、eed 10 %. If the dimensions of the specimen are smaller than 100 mm, the acceleration applied at any point on the specimen shall not deviate by i- 10 X ; otherwise the acceleration is applied to the specimen mounting plane within the - f 10 Z limits. i) Published as AECMA standard at the date of pub
12、lication of the present standard, 2) In preparation at the date of publication of the present standard. -, - .-I_ - Previous page is blank _I i CEN *PREN*259L 91 3404589 OOL2425 8 W prEN 2591-D1 Page 4 5 Method 5.1 Initial measurements (if applicable) 5.2 Acceleration level m/s2 9 (approx.) 200 500
13、1000 2500 5000 20 50 100 250 500 5.3 Procedure The specimen shall be submitted to the acceleration for 5 min in each of both directions of the three tri-rectangluar axes so that the total duration of the test is 30 min. During the test, a check of the electrical discontinuity of the contacts in the
14、microsecond range ,(test EN 2591-B4) shall be carried out. The duration of discontinuity shall not exceed the value specified. The specimen shall reach the acceleration value within a period of time greater than 1 min. 5.4 Final measurements (if applicable) The specimen shall be submitted to the following tests : - EN 2591-A1 - Visual examination - EN 2591-D8 - mating and unmating forces - EN 2591-B1 or B2 - Contact resistance - Low level or at rate current
