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1、BRITISH STANDARD BS EN 2349-409:2007 Aerospace series Requirements and test procedures for relays and contactors Part 409: Ozone resistance ICS 49.060 ? Licensed CopyChinese University of Hong Kong, 21/10/2008 04:14, Uncontrolled Copy, (c) BSI BS EN 2349-409:2007 This British Standard was published
2、under the authority of the Standards Policy and Strategy Committee on 29 August 2008 BSI 2008 ISBN 978 0 580 56754 4 National foreword This British Standard is the UK implementation of EN 2349-409:2007. The UK participation in its preparation was entrusted to Technical Committee ACE/6, Aerospace avi
3、onic electrical and fibre optic technology. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a
4、 British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication DateComments Licensed CopyChinese University of Hong Kong, 21/10/2008 04:14, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2349-409 April 2007 ICS 49.060
5、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 und Scha
6、ltschtze - Teil 409: Ozonbestndigkeit This European Standard was approved by CEN on 19 May 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-
7、date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under
8、 the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, H
9、ungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Ce
10、ntre: rue de Stassart, 36 B-1050 Brussels 2007 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2349-409:2007: E Licensed CopyChinese University of Hong Kong, 21/10/2008 04:14, Uncontrolled Copy, (c) BSI 2 Contents Page Foreword3 1 S
11、cope 4 2 Normative references4 3 Method4 4 Requirements.4 BS EN 2349-409:2007 Licensed CopyChinese University of Hong Kong, 21/10/2008 04:14, Uncontrolled Copy, (c) BSI 3 Foreword This document (EN 2349-409:2007) has been prepared by the AeroSpace and Defense Industries Association of Europe - Stand
12、ardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall
13、 be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2007, and conflicting national standards shall be withdrawn at the latest by October 2007. According to the CEN/CENELEC Internal Regulations, the national standards org
14、anizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
15、Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 2349-409:2007 Licensed CopyChinese University of Hong Kong, 21/10/2008 04:14, Uncontrolled Copy, (c) BSI 4 1 Scope This standard specifies a method for checking the capability of relays and contactors to resist ozo
16、ne. It shall be used together with EN 2349-100. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any
17、 amendments) applies. EN 2349-100, Aerospace series 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 3 Method 3.1 Mounting The relay or con
18、tactor shall be wired in accordance with 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 0,010 % to 0,015 % volume. 4 Requirements Test i
19、n accordance with EN 2349. No sign of damage shall occur. 1) In preparation at the date of publication of this standard. BS EN 2349-409:2007 Licensed CopyChinese University of Hong Kong, 21/10/2008 04:14, Uncontrolled Copy, (c) BSI blank Licensed CopyChinese University of Hong Kong, 21/10/2008 04:14
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