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、0g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 2349-318:2006This British Standard was published under the authority of the Standards Policy and Strategy Committ
3、ee 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 entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology
4、, 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 correct application.Compliance with a
5、British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2349-318October 2006ICS 49.060English VersionAerospace series - Requirements and test procedures for relaysand contactors - Part 3
6、18: Pick-up voltage at high temperatureand drop-out voltage at low temperatureSrie arospatiale - Exigences et mthodes dessais desrelais et contacteurs - Partie 318 : Tension de collage haute temprature et de dcollage basse tempratureLuft- und Raumfahrt - Anforderungen und Prfverfahren frRelais und S
7、chaltschtze - Teil 318: Ansprechspannungbei hoher Temperatur und Rckfallspannung bei niedrigerTemperaturThis 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 EuropeanStandard
8、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, 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 NORMALISATIONEURO
11、PISCHES 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 2349-318:2006: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Pick-up voltage at h
12、igh temperature .4 4 Drop-out voltage at low temperature.5 EN 2349-318:20063 Foreword This document (EN 2349-318:2006) has been prepared by the AeroSpace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of t
13、his 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 national standard, either by publication of an identical text or by
14、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 countries are bound to implement this European Standard: Austria, Belg
15、ium, 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 the United Kingdom. EN 2349-318:20064 1 Scope Th
16、is standard specifies a method for testing the pick-up voltage at high temperature and release voltage at low temperature of relays and contactors. It shall be used together with EN 2349-100. 2 Normative references The following referenced documents are indispensable for the application of this docu
17、ment. 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 series Requirements and test procedures for relays and contactors Part 100: General requirements 1)EN 2349-201,
18、 Aerospace series Requirements and test procedures for relays and contactors Part 201: Visual inspection EN 2349-301, Aerospace series Requirements 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
19、relays and contactors Part 303: Dielectric strength EN 2349-412, Aerospace series Requirements and test procedures for relays and contactors Part 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 h
20、eatingcabinet. The coil of the relay or contactor shall be connected through a switch to the power source. 3.2 Test procedure The temperature of 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
21、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 contactor in all three perpendicularly opposed planes. The switching position of the contacts shall not change when the voltage is increased from the measured
22、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 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 b
23、efore further tests are performed. 1) In preparation at the date of publication of this standard. EN 2349-318:20065 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 vol
24、tage shall be measured. The test samples shall be stored 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,
25、EN 2349-303, EN 2349-307 and EN 2349-412. 4 Drop-out voltage 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
26、procedure The temperature of the cooling cabinet shall 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 stor
27、ed at the specified temperature for a period of 48 h. 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
28、 far as possible, the coil of the relay or contactor shall 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 i
29、n the product standard. 4.4 Verification tests Test in accordance with EN 2349-201, EN 2349-301, EN 2349-303, EN 2349-307, EN 2349-412. EN 2349-318:2006BS EN 2349-318:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for prepar
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