1、BRITISH STANDARD AEROSPACE SERIES BS EN 3841-506:2004 Circuit breakers Test methods Part 506: Vibration Performance The European Standard EN 3841-506:2004 has the status of a British Standard ICS 49.060 BS EN 3841-506:2004 This British Standard was published under the authority of the Standards Poli
2、cy and Strategy Committee on 22 February 2005 BSI 22 February 2005 ISBN 0 580 45542 4 National foreword This British Standard is the official English language version of EN 3841-506:2004. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical
3、 and fibre optic technology, to Subcommittee ACE/6/5, Circuit breakers, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications
4、 referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary
5、provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpreta
6、tion, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copyright
7、 notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3841506 December2004 ICS49.060 Englishversion AerospaceseriesCircuitbreakersTestmethodsPart506: Vibrationperforma
8、nce SriearospatialeDisjoncteursMthodesdessais Partie506:Tenueauxvibrations LuftundRaumfahrtSchutzschalterPrfverfahrenTeil 506:Schwingungsverhalten ThisEuropeanStandardwasapprovedbyCENon10September2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivin
9、gthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyo
10、therlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,I
11、reland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrights
12、ofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3841506:2004:EEN 3841-506:2004 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Method 4 3.1 Mounting.4 3.2 Procedure .4 3.3 Requirement.5 EN 3841-506:2004 (E) 3 Foreword This document (EN 3841-50
13、6:2004) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-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 AECMA, 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 June 2005, and conflicting national standards shall be withdrawn at the latest by Ju
15、ne 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations 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, L
16、atvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 3841-506:2004 (E) 4 1 Scope This standard specifies a method of verifying the vibration performance of circuit breakers. It shall be used together with EN
17、 3841-100. 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) applies. ISO 7137, Aircr
18、aft Environmental conditions and test procedures for airborne equipment EN 3841-100, Aerospace series Circuit breakers Test methods Part 100: General MIL-STD-810F, Environmental engineering considerations and laboratory tests 1) 3 Method 3.1 Mounting The circuit breakers shall be mounted on the vibr
19、ator according to 4.2 and 4.3 of EN 3841-100. The means of mounting shall be designed so as to transmit vibrations over the whole frequency range without absorption or natural resonance. The electrical connection shall be made with the cables of the sections specified in EN 3841-100, Table 1. The co
20、nnection cables shall be attached to the vibration support approximately 100 mm from the terminals. The circuit breakers and the cables shall be mounted with the torque indicated in the product standard. 3.2 Procedure The circuit breakers shall be subjected to: the sinusoidal vibration test accordin
21、g to ISO 7137, test procedure 2.2; the random vibration test according to ISO 7137, test procedure 2.2; sinusoidal vibration test at low frequencies according to ISO 7137, test procedure 2.2; the gunfire vibration test according to MIL-STD-810F, method 519.3, if specified. The test shall be carried
22、out in three mounting positions along the main axis of the circuit breakers, in the closed and open position. The test conditions and vibration values shall conform to the technical specification. 1) Published by: Department of Defense (DOD), the Pentagon, Washington D.C. 20301 USA. EN 3841-506:2004
23、 (E) 5 The test periods at sinusoidal vibration shall include determination of the resonant frequencies and a period to be determined as follows: resonance: if applicable, 30 min per resonance; sweep: remainder of total time specified. During the test the contacts do not close for a period 10 s (cir
24、cuit breakers in the open position) or open for a period 10 s (circuit breakers in the closed position). 3.3 Requirement Requirements in accordance with technical specification and product standard. BS EN 3841-506:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is
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