1、BRITISH STANDARD AEROSPACE SERIES Cables, electrical, aircraft use Test methods Part 409: Air-excluded ageing The European Standard EN 3475-409:2002 has the status of a British Standard ICs 49.060 BS EN 3475409:2002 Wk present to the responsible European committee any enquiries on the interpretation
2、, 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 fer enc e s The British Standards w
3、hich 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 Catalogue. A British Standard does
4、 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 comprises a front cover, an insid
5、e front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 05 February 2002 ISBN O 580 38377 6 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3475-409 January 2002 I
6、Cs 49.060 English version Aerospace series - Cables, electrical, aircraft use - Test methods - Part 409: Air-excluded ageing Srie arospatiale - Cbles lectriques usage aronautique - Mthodes dessai - Partie 409: Vieillissement labri de lair Luft- und Raumfahrt - Elektrische Leitungen fr Luftfahrt, Ver
7、wendung - Prfverfahren - Teil 409: Alterung in einem verschlossenen, luftdichten Raum 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
8、national standard 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
9、any other language 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, Germa
10、ny, Greece, 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
11、 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3475-409:2002 E EN 3475-409:2002 (E) Foreword This document (EN 3475-409:2002) has been prepared by the European Association of Aerospace Manufacturers (AECMA). After enquiries and votes
12、 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, ei
13、ther by publication 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 imp
14、lement this 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 3475-409:2002 (E) 1 Scope This standard specifies a method o
15、f determining the behaviour of a finished cable after ageing in the absence of air. 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 app
16、ropriate places in the text and the 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 publ
17、ication referred to applies. EN 3475-100 Aerospace series - Cables, electrical, aircraft use - Test methods - Part 100: General 3 Preparation of a specimen Take a specimen of 100 mm length. 4 Apparatus A metal tube and an oven shall be required for this test. The tube shall have a useful internal le
18、ngth of 120 mm and an inside diameter of 30 mm. The ends of the tube shall be sealed (see figure 1). Screw sealing cap brass or copper tube t 120 mm 4 1 Key 1 Brazed Figure 1 3 EN 3475-409:2002 (E) 5 Method 5.1 Procedure The specimen shall be sealed in the tube which shall then be placed in the oven
19、 at the temperature and for the time specified in the product standard. At the end of this time the tube shall be removed from the oven and cooled to ambient temperature. The specimen shall then be removed from the tube and bent into a U shape with a curvature six times the specified maximum externa
20、l diameter of the cable or core. 5.2 The cable covering shall not show any sign of cracking, splitting or reversion. Req u i remen ts 4 BS EN 3475-409 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
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