1、BRITISH STANDARDBS EN 2349-304:2006Aerospace series Requirements and test procedures for relays and contactors Part 304: Operate and release timeThe European Standard EN 2349-304:2006 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g4
2、0g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 2349-304:2006This British Standard was published under the authority of t
3、he Standards Policy and Strategy Committee on 31 January 2007 BSI 2007ISBN 978 0 580 50020 6National forewordThis British Standard was published by BSI. It is the UK implementation of EN 2349-304:2006.The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avion
4、ic electrical and fibre optic technology, to Panel ACE/6/-/4, Aerospace Switching devices.A list of organizations represented on ACE/6/-/4 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 it
5、s correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN
6、 2349-304October 2006ICS 49.060English VersionAerospace series - Requirements and test procedures for relaysand contactors - Part 304: Operate and release timeSrie arospatiale - Exigences et mthodes dessais desrelais et contacteurs - Partie 304 : Temps denclenchementet de dclenchementLuft- und Raumf
7、ahrt - Anforderungen und Prfverfahren frRelais und Schaltschtze - Teil 304: Ansprechzeit undRckfallzeitThis European Standard was approved by CEN on 10 May 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard t
8、he status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German)
9、. A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark,
10、Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROP
11、ISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2349-304:2006: ELicensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy,
12、(c) BSI2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Operate time .4 4 Release time.6 EN 2349-304:2006Licensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy, (c) BSI3 Foreword This document (EN 2349-304:2006) has been prepared by the AeroSpace and Defence
13、 Industries Association of Europe - Standardization (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 presenta
14、tion to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2007, and conflicting national standards shall be withdrawn at the latest by April 2007. Attention is drawn to the possibility th
15、at some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound t
16、o implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and
17、 the United Kingdom. EN 2349-304:2006Licensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy, (c) BSI4 1 Scope This standard specifies a method for testing the operating (actuating) and releasing time of relays and contactors. It shall be used together with EN 2349-100. 2
18、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 amendments) applies. EN 2349-100, Aerospace serie
19、s Requirements and test procedures for relays and contactors Part 100: General requirements 1)ISO 2678, Environmental tests for aircraft equipment Insulation resistance and high voltage tests for electrical equipment 3 Operate time 3.1 Test procedures The operate time shall be measured from the appl
20、ication of the rated voltage to the coil until the last normally-open contact has closed, see Figure 2. The operate time shall be evaluated without bounce time. The contact load shall be between 5 mA and 100 mA. The open contact voltage shall be 6 V d.c. max. for relays or contactors of up to and in
21、cluding 25 A rating, and 28 V d.c. for relays or contactors above 25 A rating. For qualification tests, five measurements shall be taken and recorded. Figure 1 shows a typical test circuit. 3.2 Test criteria The relay or contactor shall operate within the time specified in the product standard. 1) I
22、n preparation at the date of publication of this standard. EN 2349-304:2006Licensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy, (c) BSI5 Figure 1 Test circuit for the determination of the actuation, release and bounce times Figure 2 Switch closure at t = 0, Operate tim
23、e characteristics Figure 3 Switch opening at t = 0, Release time characteristics Key R1, R2resistor 60 DUT device under test (relay) 1 trigger input self-synchronous 2 signal input oscilloscope (vertical 3 ground input deflection) U1control voltage U2test voltage 6 V d.c. S switch aNO contact bNC co
24、ntact Key 1 dynamic resistance effect t1operate time t2transfer time t3contact break bounce duration t4contact closing bounce duration (make bounces) Key 1 dynamic contact resistance effect t2transfer time t3contact break bounce duration t5release time t6contact make bounce duration EN 2349-304:2006
25、Licensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy, (c) BSI6 4 Release time 4.1 Test procedures The release time shall be measured from removal of the rated voltage, see Figure 3: for normally-open contacts: until the last normally-open contact has opened; for change-
26、over contacts: until the last normally-closed contact has closed (this time includes the transfer time). The contact load shall be between 5 mA and 100 mA. The open contact voltage shall be 6 V d.c. for relays or contactors of up to and including 25 A rating, and 28 V d.c. for relays or contactors a
27、bove 25 A rating. The release time shall be evaluated without bounce time. For qualification tests, five measurements shall be taken and recorded. Figure 1 shows a typical test circuit. 4.2 Test criteria The relay or contactor shall drop out within the time specified in the product standard. EN 2349
28、-304:2006Licensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy, (c) BSIblankLicensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 2349-304:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the inde
29、pendent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they
30、 possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the ide
31、ntity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards.Buying standardsOrders for all BSI, internatio
32、nal and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-.In response to orders for international standards, it is BSI policy to supply th
33、e BSI implementation of those that have been published as British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI elec
34、tronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-.Subscribing members of BSI are kept up to date with standards developments and receive substantial d
35、iscounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-.Information regarding online access to British Standards via British Standards Online can be found at http
36、:/www.bsi- information about BSI is available on the BSI website at http:/www.bsi-.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Paten
37、ts Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI.This does not preclude the free use, in the course of implementing the standard, of necessary d
38、etails such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained.Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.Licensed Copy: Wang Bin, na, Wed Apr 04 08:12:34 GMT+00:00 2007, Uncontrolled Copy, (c) BSI
