EN 3475-506-2007 en Aerospace series - Cables electrical aircraft use - Test methods - Part 506 Plating continuity《航空航天系列 飞机用电缆 测试方法 第506部分 电镀均匀性》.pdf

《EN 3475-506-2007 en Aerospace series - Cables electrical aircraft use - Test methods - Part 506 Plating continuity《航空航天系列 飞机用电缆 测试方法 第506部分 电镀均匀性》.pdf》由会员分享，可在线阅读，更多相关《EN 3475-506-2007 en Aerospace series - Cables electrical aircraft use - Test methods - Part 506 Plating continuity《航空航天系列 飞机用电缆 测试方法 第506部分 电镀均匀性》.pdf（8页珍藏版）》请在麦多课文档分享上搜索。

1、BRITISH STANDARDBS EN 3475-506:2007Aerospace series Cables, electrical, aircraft use Test methods Part 506: Plating continuityThe European Standard EN 3475-506:2007 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44

2、g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 3475-506:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2007 BSI 2007ISBN 978 0 580 55882 5National forewordT

3、his British Standard is the UK implementation of EN 3475-506:2007. It supersedes BS EN 3475-506:2002 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to Panel ACE/6/-/2, Aerospace Cables.A

4、list of organizations represented on this committee can be obtained on request to its secretary.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 cannot confer immunity from le

5、gal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 3475-506August 2007ICS 49.060 Supersedes EN 3475-506:2002 English VersionAerospace series - Cables, electrical, aircraft use - Testmethods - Part 506: Plating continuitySrie aro

6、spatiale - Cbles lectriques usagearonautique - Mthodes dessais - Partie 506 : Continuitdu revtementLuft- und Raumfahrt - Elektrische Leitungen frLuftfahrtverwendung - Prfverfahren - Teil 506:Gleichmaigkeit des berzugsThis European Standard was approved by CEN on 21 June 2007.CEN members are bound to

7、 comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Mana

8、gement Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as th

9、eofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia,

10、Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN

11、national Members.Ref. No. EN 3475-506:2007: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Preparation of specimens.4 4 Method 5 5 Requirements.5 EN 3475-506:20073 Foreword This document (EN 3475-506:2007) has been prepared by the Aerospace and Defence Industries Association of Euro

12、pe - Standardization (ASD-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 of the member countries of ASD, prior to its presentation to CEN. This European Stan

13、dard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2008, and conflicting national standards shall be withdrawn at the latest by February 2008. Attention is drawn to the possibility that some of the elements o

14、f this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 3475-506:2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following cou

15、ntries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Sp

16、ain, Sweden, Switzerland and the United Kingdom. EN 3475-506:20074 1 Scope This standard specifies a method of verifying the continuity of plating on strands which are: either checked before stranding or screening, or checked after stranding or screening It shall be used together with EN 3475-100. 2

17、 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) applies. EN 3475-100, Aerospace seri

18、es Cables, electrical, aircraft use Test methods Part 100: General. ASTM B 33-81, Standard specification for tinned soft or annealed copper wire for electrical purposes. 1)ASTM B 298-99, Standard specification for silver-coated soft or annealed copper wire. 1)ASTM B 355-95, Standard specification fo

19、r nickel-coated soft or annealed copper wire. 1)3 Preparation of specimens 3.1 General The ASTM B 33 or ASTM B 298 or ASTM B 355 plating continuity test method applies to single end wires taken before stranding or before screening. Thus the applicability of the polysulfide test is restricted by the

20、ASTM in recognition of the abrasion to the wire inherent in the stranding or in the screening process. 3.2 Strands before stranding or screening 3.2.1 Copper strands Prepare three strands at least 150 mm long as specimens and carefully straighten them by hand. Degrease the strands without damaging t

21、hem and wipe them with a clean dry cloth. After cleaning, the strands shall not be touched with bare fingers. The length of the specimen which is immersed shall be at least 110 mm. 3.2.2 Copper-clad aluminum strands Prepare three strands at least 150 mm long as specimens. Degrease the strands withou

22、t damaging them and wipe them with a clean dry cloth. After cleaning, the strands shall not be touched with bare fingers. 1) Published by: American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, USA. EN 3475-506:20075 By using gloves,

23、wind five turns of each strand on a mandrel which the diameter is about 12 times the strand diameter. NOTE Due to hardness differences between, aluminium, copper and coating (particularly nickel) materials and possible associated drawbacks during strand drawings after plating, turns are necessary to

24、 reveal possible weakness. 3.3 Strands after stranding or screening 3.3.1 General Due to the above restriction by the ASTM in recognition of the abrasion to the wire inherent in the stranding or in the screening process, the following preparation of specimens apply when testing stranded or screened

25、product: 1) Unilay or Concentric constructions to be tested as the whole conductor. 2) Two members from each layer of rope constructions to be tested after they have been carefully removed from the finished rope. 3) Screen to be tested as whole conductor after it has been carefully separated from ca

26、ble jacket and from inner core(s). 3.3.2 Copper conductors or copper screens Prepare three samples at least 150 mm long as specimens. Degrease the specimens without damaging them and wipe them with a clean dry cloth. After cleaning, the specimens shall not be touched with bare fingers. The length of

27、 the specimen which is immersed shall be at least 110 mm. 3.3.3 Copper-clad aluminum conductors Prepare three samples at least 150 mm long as specimens. Degrease the specimens without damaging them and wipe them with a clean dry cloth. After cleaning, the specimens shall not be touched with bare fin

28、gers. By using gloves, wind five turns of each conductor on a mandrel which diameter is about 12 times the conductor diameter. 4 Method Place the specimens for 30 s in a sodium polysulphide solution which has a density of 1,142 g/cm3at 20 C, then wash them carefully in distilled water. In addition,

29、for silver plating, the samples shall then be immersed for 15 s in a solution of hydrochloric acid which has a density of 1,088 g/cm3at 20 C. The specimens shall then be washed carefully again in distilled water. 5 Requirements Examination shall occur immediately after the solution cycle. There shal

30、l be no adherent or distinctly visible black spots when examined with the naked eye. Any blackening occurring less than 15 mm from each end shall be disregarded. EN 3475-506:2007BS EN 3475-506:2007BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national b

31、ody responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the lates

32、t amendments or editions.It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can

33、 be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign st

34、andards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-.In response to orders for international standards, it is BSI policy to supply the BSI implementati

35、on of those that have been published as British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information

36、 services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-.Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the pu

37、rchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-.Information regarding online access to British Standards via British Standards Online can be found at http:/www.bsi- informa

38、tion about BSI is available on the BSI website at http:/www.bsi-.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no ext

39、ract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI.This does not preclude the free use, in the course of implementing the standard, of necessary details such as sym

40、bols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained.Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.