1、 STD-AECMA PREN 2349-303-ENGL 2000 LOL233L 0037539 Lq5 - AECMA STANDARD prEN 2349-303 NORME AECMA Edition P 1 AECMA NORM January 2000 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - B-1200 BRUXELLES - Tel. (+32) 2 775 81 1 O - Fax. (+32) 2 775 81 11 ICs: Edition
2、 approved for publication 2000-01-31 Descriptors: Comments should be sent within six months after the date of publication to AECMA Gulledelle 94 6-1200 BRUXELLES ENGLISH VERSION Aerospace series Requirements and test procedures for relays and contactors Part 303: Dielectric strength Srie arospatiale
3、 Exigences et mthodes dessais des relais et contacteurs Partie 303: Rigidit dilectrique Luft- und Raumfahrt Anforderungen und Prfverfahren fr Relais und Schaltschtze Teil 303: Spannungsfestigkeit This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The European As
4、sociation of Aerospace Industries). 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
5、 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 (NPS) and formal agreement of the OftWal Services of the Member countries it will be su
6、bmitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Nota - Extra cooles can be SUDOlied bv B.N A E. - Technooolis 54 - 199. rue Jean-Jacaues Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX C2 Chairman Mr Peuetta 0 aecma 2000 STD*AECflA PREN 23i9-303-ENGL
7、2000 = 3012333 0037520 9b7 Page 2 prN 2349-303: 2000 Contents Scope Normative references 3 Test procedures . 3 Test criteria . . 3 STD-AECMA PREN 2349-303-ENGL 2000 m LO123L3 0037521 BT3 m Page 3 prEN 2349-303: 2000 I Scope This standard specifies a method for testing the dielectric strength of rela
8、ys and contactors. It shall be used together with EN 2349-1 OO. 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 listed here
9、after. 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 series - Req
10、uirements and test procedures for relays and contactors - Part 100: General requirements 1) IS0 2678 Environmental tests for aircraft equipment - Insulation resistance and high voltage tests for electrical equipment 3 Test procedures 3.1 between all terminals and the housing. The test voltage shall
11、be applied between all terminals which are insulated from each other and 3.2 The test shall be performed both with the relay or contactor de-energized and energized. 3.3 The test shall be performed in accordance with IS0 2678. 3.4 The test duration shall be as follows: - for batch acceptance and acc
12、eptance testing: 2 s to 5 s; - for certification testing: 1 min. NOTE: During the test in the de-energized state the coil terminals shall be connected to each other. 4 Test criteria The dielectric strength of the relay or contactors shall conform to the values specified in the product standards. The relay or contactor shall not be damaged during the test. The leakage current shall not exceed 1 mA. 1) In preparation at the date of publication of this standard
