1、BRITISH STANDARD AEROSPACE SERIES Cables, electrical, aircraft use Test methods Part 403 : Delamination and blocking The European Standard EN 3475-403:2002 has the status of a British Standard ICs 49.060 BS EN 3475403 :2002 BS EN 3475-40312002 Amd. No. National foreword Date Comments This British St
2、andard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 04 February 2002 This British Standard is the official English language version of The UKparticipation in its
3、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: EN 3475-40312002. - - aid enquirers to understand the text; present to the responsible European committee a
4、ny enquiries on the interpretation, or proposals for change, and keep the 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 secretary. Cr oss-r e f
5、er enc e s The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ?International Standards Correspondence Index?, or by using the ?Find? facility of the BSI Standards Electronic
6、Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document
7、 comprises a front cover, an inside front cover, the EN title page, pages 2 and 3 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 04 February 2002 ISBN O 580 38365 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3475-403 J
8、anuary 2002 ICs 49.060 English version Aerospace series - Cables, electrical, aircraft use - Test methods - Part 403: Delamination and blocking Srie arospatiale - Cbles lectriques usage aronautique - Mthodes dessai - Partie 403: Collage et dlamination Luft- und Raumfahrt - Elektrische Leitungen fr L
9、uftfahrt, Verwendung - Prfverfahren - Teil 403: Verblocken und Aufblttern This European Standard was approved by CEN on 6 August 2001 CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national sta
10、ndard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other la
11、nguage made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
12、Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2002 CEN All rights
13、of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3475-403:2002 E EN 3475-403:2002 (E) Foreword This document (EN 3475-403:2002) has been prepared by the European Association of Aerospace Manufacturers (AECMA). After enquiries and votes carried out
14、 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, either by publ
15、ication of an identical text or by endorsement, at the latest by July 2002, and conflicting national standards shall be withdrawn at the latest by July 2002. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this
16、European Standard : Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 2 EN 3475-403:2002 (E) 1 Scope This standard specifies a method of measuring
17、the delamination and blocking of a finished cable. It shall be used together with EN 3475-100. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and t
18、he publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 3
19、475-100 Aerospace series - Cables, electrical, aircraft use - Test methods - Part 100: General 3 Preparation of a specimen A specimen of sufficient length shall be taken from insulated conductors or screened and jacketed cables. 4 Apparatus A mandrel whose diameter shall be given in the technical sp
20、ecification and a natural convection oven shall be necessary for this test. 5 Method 5.1 Procedure A specimen shall be wound round a mandrel with two layers superimposed, each consisting of six to eight coils of cable. The cable shall be wound so that the coils are in contact with one another. The e
21、nd of the conductor shall be attached to the mandrel to avoid any unwinding or detachment of coils or layers. The whole unit shall be placed in a natural draught oven at the temperature shown in the product standard for 6 h. After 6 h the unit shall be removed from the oven and cooled for at least 1
22、 h at ambient temperature. 5.2 A check shall then be made to ensure that the cable can easily be unwound from the mandrel and the coils easily separated from one another. Any bonding of layers, either along the insulation or the jacket or at the ends, shall be considered as a defect. For screened ca
23、bles, the cable components shall be easily separated. Any flaring of any layer shall also constitute a failure. Req u i remen ts 3 BS EN 3475-403 12002 BSI 389 Chiswick High Road Lon don w4 4AL BSI is the independent national body responsible for preparing British Standards. It presents the UK view
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