1、BRITISH STANDARD AEROSPACE SERIES BS EN 3475-414:2005 Cables, electrical, aircraft use Test methods Part 414: Differential scanning calorimeter (DSC test) The European Standard EN 3475-414:2005 has the status of a British Standard ICS 49.060 Licensed Copy: Wang Bin, na, Mon May 08 03:34:39 BST 2006,
2、 Uncontrolled Copy, (c) BSIBS EN 3475-414:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 10 February 2006 BSI 10 February 2006 ISBN 0 580 47792 4 National foreword This British Standard is the official English language version of EN 347
3、5-414:2005. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to Subcommittee ACE/6/-/2, Aerospace Cables, which has the responsibility to: aid enquirers to understand the text; present to the responsible inte
4、rnational/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its
5、 secretary. Cross-references The British Standards which implement international or European 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
6、Catalogue or of British Standards Online. This publication does not purport to include all 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. Summary of pages This do
7、cument comprises a front cover, an inside front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Licensed Copy: Wa
8、ng Bin, na, Mon May 08 03:34:39 BST 2006, Uncontrolled Copy, (c) BSIEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3475414 October2005 ICS49.060 EnglishVersion AerospaceseriesCables,electrical,aircraftuseTest methodsPart414:Differentialscanningcalorimeter(DSCtest) SriearospatialeCbleslectriquesusa
9、ge aronautiqueMthodesdessaisPartie414:EssaiDSC LuftundRaumfahrtElektrischeLeitungenfr LuftfahrtverwendungPrfverfahrenTeil414:DSC Verfahren ThisEuropeanStandardwasapprovedbyCENon12September2005. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEur
10、ope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlang
11、uagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,I
12、taly,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofexploi
13、tationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3475414:2005:E Licensed Copy: Wang Bin, na, Mon May 08 03:34:39 BST 2006, Uncontrolled Copy, (c) BSIEN 3475-414:2005 2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Preparation of a specimen .4 4 Apparatu
14、s 4 5 Method .4 Licensed Copy: Wang Bin, na, Mon May 08 03:34:39 BST 2006, Uncontrolled Copy, (c) BSIEN 3475-414:2005 3 Foreword This European standard (EN 3475-414:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and vote
15、s 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 AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard,
16、either by publication of an identical text or by endorsement, at the latest by April 2006, and conflicting national standards shall be withdrawn at the latest by April 2006. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/
17、or CENELEC shall not be held responsible for identifying any or all such patent rights. 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,
18、 Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, na, Mon May 08 03:34:39 BST 2006, Uncontrolled Co
19、py, (c) BSIEN 3475-414:2005 4 1 Scope This standard specifies a method of measuring the level of sintering of a PTFE tape on a finished cable. It shall be used together with EN 3475-100 and ASTM-D-4591-01. 2 Normative references The following referenced documents are indispensable for the applicatio
20、n 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. EN 3475-100, Aerospace series Cables, electrical, aircraft use Test methods Part 100: General. ASTM-D-4591-01, Standard
21、Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry. 1)3 Preparation of a specimen In accordance with ASTM-D-4591-01. 4 Apparatus In accordance with ASTM-D-4591-01. 5 Method 5.1 Procedure In accordance with ASTM-D-4591-01. Temperat
22、ure range for testing: from 270 C to 380 C. Temperature range for the calculation of the melting point energy: from 290 C to 360 C. 5.2 Requirements To achieve an acceptable PTFE tape sintering: the melting point temperature shall be (327 4) C with a 15 J/g to 25 J/g energy; the recrystallization te
23、mperature shall be 310 C minimum; the second melting point shall not exceed an energy of 25 J/g. The manufacturer shall record in the test report which DSC apparatus have been used. NOTE The values recorded in the qualification test report shall be taken for reference of the manufacturing process. I
24、f it is necessary to carry out test on production cable, test shall be made with the same DSC apparatus and the values shall be compared to the reference values. 1) Published by: American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959
25、USA. Licensed Copy: Wang Bin, na, Mon May 08 03:34:39 BST 2006, Uncontrolled Copy, (c) BSIblank Licensed Copy: Wang Bin, na, Mon May 08 03:34:39 BST 2006, Uncontrolled Copy, (c) BSIBS EN 3475-414:2005 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent n
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