1、BRITISH STANDARDBS EN 2349-318:2006Aerospace series Requirements and test procedures for relays and contactors Part 318: Pick-up voltage at high temperature and drop-out voltage at low temperatureThe European Standard EN 2349-318:2006 has the status of a British StandardICS 49.060g49g50g3g38g50g51g6
2、0g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Thu Apr 05 02:09:04 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 2349-318:2006This Brit
3、ish Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2007 BSI 2007ISBN 978 0 580 50030 5National forewordThis British Standard was published by BSI. It is the UK implementation of EN 2349-318:2006.The UK participation in its preparation was entr
4、usted by Technical Committee ACE/6, Aerospace avionic 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 pro
5、visions of a contract. Users are responsible for its 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 02:09:04 GMT+00:00 2007, Uncontrolled Copy, (c) B
6、SIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2349-318October 2006ICS 49.060English VersionAerospace series - Requirements and test procedures for relaysand contactors - Part 318: Pick-up voltage at high temperatureand drop-out voltage at low temperatureSrie arospatiale - Exigences et mthodes
7、dessais desrelais et contacteurs - Partie 318 : Tension de collage haute temprature et de dcollage basse tempratureLuft- und Raumfahrt - Anforderungen und Prfverfahren frRelais und Schaltschtze - Teil 318: Ansprechspannungbei hoher Temperatur und Rckfallspannung bei niedrigerTemperaturThis European
8、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 EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning s
9、uch 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). A version in any other language made by translationunder the responsibility of a CEN member into its own language a
10、nd 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, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Net
11、herlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation i
12、n any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2349-318:2006: ELicensed Copy: Wang Bin, na, Thu Apr 05 02:09:04 GMT+00:00 2007, Uncontrolled Copy, (c) BSI2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Pick-up voltage at high temperature .4 4 Drop-o
13、ut voltage at low temperature.5 EN 2349-318:2006Licensed Copy: Wang Bin, na, Thu Apr 05 02:09:04 GMT+00:00 2007, Uncontrolled Copy, (c) BSI3 Foreword This document (EN 2349-318:2006) has been prepared by the AeroSpace and Defence Industries Association of Europe - Standardization (ASD-STAN). After e
14、nquiries 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 be given the status of a nati
15、onal 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countr
16、ies 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, Slovakia, Slovenia, Spain, Sweden,
17、Switzerland and the United Kingdom. EN 2349-318:2006Licensed Copy: Wang Bin, na, Thu Apr 05 02:09:04 GMT+00:00 2007, Uncontrolled Copy, (c) BSI4 1 Scope This standard specifies a method for testing the pick-up voltage at high temperature and release voltage at low temperature of relays and contactor
18、s. 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
19、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 EN 2349-301, Aerospace series Requiremen
20、ts and test procedures for relays and contactors Part 301: Pick-up and drop-out voltage EN 2349-303, Aerospace series Requirements and test procedures for relays and contactors Part 303: Dielectric strength EN 2349-412, Aerospace series Requirements and test procedures for relays and contactors Part
21、 412: Seal 3 Pick-up voltage at high temperature 3.1 Mounting method The relay or contactor shall be wired in accordance with EN 2349-100 and placed in a heatingcabinet. The coil of the relay or contactor shall be connected through a switch to the power source. 3.2 Test procedure The temperature of
22、the heating cabinet shall be brought to the level specified in the product standard. After the temperature in the heating cabinet has been stabilized, the relay or contactor shall be stored at the specified temperature for a period of 1 h. The pick-up voltage shall be measured with the relay or cont
23、actor in all three perpendicularly opposed planes. The switching position of the contacts shall not change when the voltage is increased from the measured actuating voltage to the maximum level. 3.3 Pick-up voltage for previously de-energized coil The relay or contactor shall be stored for 1 h with
24、the coil de-energized and the contacts unloaded. The pick-up voltage shall be measured. The test samples shall be stored for a minimum of 1 h at (23 3) C before further tests are performed. 1) In preparation at the date of publication of this standard. EN 2349-318:2006Licensed Copy: Wang Bin, na, Th
25、u Apr 05 02:09:04 GMT+00:00 2007, Uncontrolled Copy, (c) BSI5 3.4 Pick-up voltage for previously energized coil The relay or contactor shall be stored for 1 h at the rated voltage with the coil energized and the contacts unloaded. The pick-up voltage shall be measured. The test samples shall be stor
26、ed for a minimum of 1 h at (23 3) C before further tests are performed. 3.5 Test criteria The pick-up voltage shall lie within the values specified in the product standard. 3.6 Verification tests Test in accordance with EN 2349-201, EN 2349-301, EN 2349-303, EN 2349-307 and EN 2349-412. 4 Drop-out v
27、oltage at low temperature 4.1 Mounting method The relay or contactor shall be wired as described in EN 2349-100 and placed in a cooling cabinet. The coil of the relay or contactor shall be connected through a switch to the power source. 4.2 Test procedure The temperature of the cooling cabinet shall
28、 be brought to the level specified in the product standard. The coil of the relay or contactor shall be de-energized and the contacts unloaded. After the temperature in the cooling cabinet has been stabilized, the relay or contactor shall be stored at the specified temperature for a period of 48 h.
29、At the end of the 48 h storage period and maintaining the specified temperature, the release voltage and voltage drop on the contacts shall be measured in all three perpendicularly opposed planes. To limit temperature increase during the tests as far as possible, the coil of the relay or contactor s
30、hall be energized for no longer than 30 s. The contacts shall not change their switching position when the voltage is reduced from the measured release voltage to zero. 4.3 Test criteria The release voltage shall lie within the values specified in the product standard. 4.4 Verification tests Test in
31、 accordance with EN 2349-201, EN 2349-301, EN 2349-303, EN 2349-307, EN 2349-412. EN 2349-318:2006Licensed Copy: Wang Bin, na, Thu Apr 05 02:09:04 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 2349-318:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent
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