1、BRITISH STANDARDBS EN 2349-306:2006Aerospace series Requirements and test procedures for relays and contactors Part 306: Overload d.c. and a.c.The European Standard EN 2349-306:2006 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g
2、53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Thu Apr 05 01:23:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 2349-306:2006This British Standard was published under the authority of the
3、 Standards Policy and Strategy Committee on 31 January 2007 BSI 2007ISBN 978 0 580 50022 0National forewordThis British Standard was published by BSI. It is the UK implementation of EN 2349-306:2006.The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic
4、 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 its
5、correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Thu Apr 05 01:23:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2
6、349-306October 2006ICS 49.060English VersionAerospace series - Requirements and test procedures for relaysand contactors - Part 306: Overload d.c. and a.c.Srie arospatiale - Exigences et mthodes dessais desrelais et contacteurs - Partie 306 : Surcharges courantcontinu et alternatifLuft- und Raumfahr
7、t - Anforderungen und Prfverfahren frRelais und Schaltschtze - Teil 306: berlast bei Gleich-und WechselstromThis 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 EuropeanStand
8、ard the 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, Ge
9、rman). 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, Denm
10、ark, 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 NORMALISATION
11、EUROPISCHES 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 2349-306:2006: ELicensed Copy: Wang Bin, na, Thu Apr 05 01:23:47 GMT+00:00 2007, Uncontrolled C
12、opy, (c) BSI2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Mounting method.4 4 Test procedures.4 5 Test criteria.5 6 Verification test5 EN 2349-306:2006Licensed Copy: Wang Bin, na, Thu Apr 05 01:23:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI3 Foreword This document (EN 2349-306:200
13、6) has been prepared by the AeroSpace and Defense 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 t
14、he member countries of ASD, prior to its presentation 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 Apr
15、il 2007. Attention is drawn to the possibility that 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 org
16、anizations of the following countries are bound to 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, S
17、lovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 2349-306:2006Licensed Copy: Wang Bin, na, Thu Apr 05 01:23:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI4 1 Scope This standard specifies a method for testing the overload d.c. and a.c. of relays and contactors. It shall be use
18、d 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 amendments) applie
19、s. EN 2349-100, Aerospace series Requirements and test procedures for relays and contactors Part 100: General requirements 1)EN 2349-303, Aerospace series Requirements and test procedures for relays and contactors Part 303: Dielectric strength 3 Mounting method The switching device shall be wired in
20、 accordance with EN 2349-100. The rated overload current and the open circuit voltage shall be applied in accordance with product standard. The test sample shall be mounted in still air. 4 Test procedures 4.1 Each operating and resting contact shall be able to connect, conduct and disconnect the ove
21、rload in accordance with the product standard. The operating and normally closed contacts shall be tested separately. 4.2 The coil of the switching device shall be energized with the rated voltage during the test. The contacts shall be monitored during connection, conduction and disconnection. A fun
22、ctional defect of the test sample shall constitute a failure. A voltage drop across closed contacts over 10 % of the supply voltage shall constitute a failure. During the test, the housing of the relay or contactor shall be connected to the d.c. earth or neutral wire of the electrical installation b
23、y a fuse with a rating of 5 % of the rated resistive contact current, but not greater than 3 A. 4.3 Blowing of the fuse shall constitute a failure. 4.4 Test cycle: connection time: (0,2 0,05) s for a.c.; (0,5 0,05) s for d.c. disconnection time: (20 1) s. Number of switching cycles: see product stan
24、dard.1) In preparation at the date of publication of this standard. EN 2349-306:2006Licensed Copy: Wang Bin, na, Thu Apr 05 01:23:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI5 4.5 The temperature increase shall be measured for: plug-in relays: on the housing; screw-type connections: on the connecto
25、r bolt. 5 Test criteria There shall be: no electrical or mechanical failure; no sticking or seizing of contacts; no blowing of the fuse; no temperature increase greater than 75 C. 6 Verification test Test in accordance with EN 2349-303. EN 2349-306:2006Licensed Copy: Wang Bin, na, Thu Apr 05 01:23:4
26、7 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 2349-306:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is
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