1、BRITISH STANDARD AEROSPACE SERIES BS EN 3841-510:2004 Circuit breakers Test methods Part 510: Strength of signal contact terminals The European Standard EN 3841-510:2004 has the status of a British Standard ICS 49.060 BS EN 3841-510:2004 This British Standard was published under the authority of the
2、 Standards Policy and Strategy Committee on 24 February 2005 BSI 24 February 2005 ISBN 0 580 45546 7 National foreword This British Standard is the official English language version of EN 3841-510:2004. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avi
3、onic electrical 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 Europe
4、an publications 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
5、 the necessary 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 European committee any enquiries on the interpret
6、ation, 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 copyrigh
7、t notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3841510 December2004 ICS49.060 Englishversion AerospaceseriesCircuitbreakersTestmethodsPart510: Strengthofsignal
8、contactterminals SriearospatialeDisjoncteursMthodesdessais Partie510:Rsistancedeslmentsderaccordement auxiliaires LuftundRaumfahrtSchutzschalterPrfverfahrenTeil 510:FestigkeitderSignalkontaktAnschlsse ThisEuropeanStandardwasapprovedbyCENon10September2004. CENmembersareboundtocomplywiththeCEN/CENELEC
9、InternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthree
10、officialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Es
11、tonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG Management
12、Centre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3841510:2004:EEN 3841-510:2004 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Method 4 EN 3841-510:2004 (E) 3 Foreword This document (EN 384
13、1-510:2004) 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
14、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 endorsement, at the latest by June 2005, and conflicting national standards shall be withdrawn at the latest b
15、y 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, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Ital
16、y, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EN 3841-510:2004 (E) 4 1 Scope This standard specifies a method of verifying the strength of signal contact terminals of circuit breakers. It shall be use
17、d 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. For undated references, the latest edition of the referenced document (including any amendments) applie
18、s. EN 3841-100, Aerospace series Circuit breakers Test methods Part 100: General EN 3841-509, Aerospace series Circuit breakers Test methods Part 509: Insertion and extraction forces of signal contact terminals 3 Method 3.1 Mounting The circuit breakers shall be mounted according to 4.2 in EN 3841-1
19、00. The contact pins specified by the technical specification shall be wired according to EN 3841-100, Table 1 and installed in an insert. The signal contact shall be loaded with the lowest current and voltage indicated in the technical specification. Cables shall be arranged in such a way that a be
20、nding load may be applied by means of a weight or a suitable spring scale. 3.2 Procedure 3.2.1 Method Each contact pin shall be submitted to 20 inserting and extracting operations each with the tool specified in the technical specification and in accordance with EN 3841-509. 3.2.2 Contact retention
21、force Afterwards each contact pin shall be submitted to an axial preload as specified in the technical specification in order to take up contact slack in its cavity. The force specified by the technical specification shall then be applied for 10 s. The rate of increase of the force shall not exceed
22、5 N/s. The contact maximum axial displacement shall be measured in accordance with the technical specification while the force is applied and/or after the force is removed. 3.2.3 Radial load The bending load shall be applied (when possible) in the four main directions related to the housing of the c
23、ircuit breaker radially to the operating direction. The force specified in the technical specification shall be maintained for 1 min in each direction. One terminal shall be tested on each sample. EN 3841-510:2004 (E) 5 3.3 Requirement Requirements in accordance with technical specification and prod
24、uct standard. During the test, no breaking shall occur in the electrical circuit. The applied forces shall not lead to breakage or deterioration of the contact system. BS EN 3841-510:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body
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