1、BRITISH STANDARD AEROSPACE SERIES BS EN 3841-505:2004 Circuit breakers Test methods Part 505: Strength of main terminals The European Standard EN 3841-505:2004 has the status of a British Standard ICS 49.060 BS EN 3841-505:2004 This British Standard was published under the authority of the Standards
2、 Policy and Strategy Committee on 22 February 2005 BSI 22 February 2005 ISBN 0 580 45541 6 National foreword This British Standard is the official English language version of EN 3841-505:2004. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic elect
3、rical 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 publica
4、tions 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 neces
5、sary 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 inter
6、pretation, 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 4, an inside back cover and a ba
7、ck cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3841505 December2004 ICS49.060 Englishversion AerospaceseriesCircuitbreakersTestmethod
8、sPart505: Strengthofmainterminals SriearospatialeDisjoncteursMthodesdessais Partie505:Rsistancedeslmentsderaccordement principaux LuftundRaumfahrtSchutzschalterPrfverfahrenTeil 505:FestigkeitderHauptkontaktAnschlsse ThisEuropeanStandardwasapprovedbyCENon10September2004. CENmembersareboundtocomplywit
9、htheCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStanda
10、rdexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepu
11、blic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNOR
12、MUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3841505:2004:E EN 3841-505:2004 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Method 4 3.1 Tightening torque 4 3.2 Strength
13、of the terminal bodies in the housing4 3.3 Requirement.4 EN 3841-505:2004 (E) 3 Foreword This document (EN 3841-505:2004) 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 thi
14、s Association, this Standard has received the approval of the National Associations and the Official Services of the 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
15、endorsement, at the latest by June 2005, and conflicting national standards shall be withdrawn at the latest by June 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgiu
16、m, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 3841-505:2004 (E) 4 1 Scope This standar
17、d specifies a method of verifying the strength of main terminals of circuit breakers. It shall be used together with EN 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. Fo
18、r undated references, the latest edition of the referenced document (including any amendments) applies. EN 3841-100, Aerospace series Circuit breakers Test methods Part 100: General 3 Method 3.1 Tightening torque The connection screws shall be tightened to the torque specified in the technical speci
19、fication. This torque shall be maintained for 1 min. The connection screws shall then be loosened. The test shall be carried out five times with each terminal. 3.2 Strength of the terminal bodies in the housing The terminals shall be subjected to the withdrawal and pushing forces indicated in the pr
20、oduct standard. The forces shall be maintained for 1 min. 3.3 Requirement Requirements in accordance with technical specification and product standard. The terminals and the housing of the circuit breakers shall neither break nor change their shape beyond the dimensional limits indicated in the prod
21、uct standard. The screw thread shall not be stripped. blankBS EN 3841-505:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the intern
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