1、 STD.AECMA PREN 2319-909-ENGL 20130 LOL23LL 00L757b 900 D AECMA STANDARD prEN 2349-409 NORME AECMA Edition P I AECMA NORM January 2000 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - B-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 1 1 aecma 20C I
2、Cs: Descriptors: ENGLISH VERSION Aerospace series Requirements and test procedures for relays and contactors Part 409: Ozone resistance Srie arospatiale Exigences et mthodes dessais des relais et contacteurs Partie 409: Rsistance lozone Luft- und Raumfahrt Anforderungen und Prfverfahren fr Relais un
3、d Schaltschtze Teil 409: Ozonbestndigkeit This %Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA- Members. It has been fechnically approved by the experfs of the
4、 concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Presfandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After exami
5、nation and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Oficial Services of the Member countries it will be submifed as a draft European Standard to CEN (European Cornmittee for Standardization) for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - T
6、echnopolis 54 - 199. rue Jean-Jacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX I I Edition approved for publication 1 Comments should be sent within six months after the date of publication to 2000-01-31 AECMA Gulledelle 94 B-1200 BRUXELLES C2 Chairman Mr Pezzetta STD*AECMA PREN 2347-qn7-ENGL 2000
7、 1111231rL 0037577 BLi7 Pase 2 prN 2349-409: 2000 Con tents . Scope 3 Normative references 3 Requirements 3 . , . , , , , . . , , . , . , , , , , ., . ., , . , . , , , . , , , , , , . , , , , , , , , , , , , , , . , , . . , . , , 3 Method . , , , . . , , , , , , , , , , , , , , , , , , , , , , , , ,
8、 , , , , , , , . , , , , , , , , , . , , , , . , , . . , . , . . , . , , , . , , , , , . , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , . , , , , , , , , , , , , , , , , Page 3 prEN 2349-409: 2000 I Scope This standard specifies a method for checking the capability of relays and
9、 contactors to resist ozone. It shall be used together with EN 2349-100. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are li
10、sted hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2349-1 O0 Aerospace ser
11、ies Requirements and test procedures for relays and contactors - Part 100: General requirements 1) EN 2349-201 Aerospace series - Requirements and test procedures for relays and contactors - Part 201: Visual inspection 2) 3 Method 3.1 Mounting The relay or contactor shall be wired in accordance with
12、 the product standard and placed in an open air- circulating chamber. 3.2 Procedure The relay or contactor shall be exposed for a period of 2 h at room temperature to the effects of ozone with a concentration of 0,Ol O YO to 0,015 % volume. 4 Requirements Test in accordance with EN 2349. No sign of damage shall occur 1) In preparation at the date of publication of this standard 2) Published as AECMA Prestandard at the date of publication of this standard
