《BS-EN-2591-319-1998.pdf》由会员分享,可在线阅读,更多相关《BS-EN-2591-319-1998.pdf(10页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-319:1998 Elements of electrical and optical connection Test methods Part 319: Gastightness of solderless wrapped connections The European Standard EN 2591-319:1997 has the status of a British Standard ICS 49.060 Licensed Copy: sheffieldun sheffieldun, na,
2、 Thu Nov 02 18:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2591-319:1998 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 January 1998 BSI 04-1999 ISBN 0 58
3、0 29477 3 National foreword This British Standard is the English language version of EN 2591-319:1997. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic, electrical and fibre optic technology, to Subcommittee ACE/6/3, Aerospace connectors, which ha
4、s the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in
5、the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their correspondi
6、ng European publications. 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 Standa
7、rds Electronic 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 page
8、s This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Ame
9、ndments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2591-319:1998 BSI 04-1999i Contents Page National forewordInside front cover Foreword2 Text of EN 2591-3193 Licensed Copy: sheffieldu
10、n sheffieldun, na, Thu Nov 02 18:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2591-319 October 1997 ICS 49.060 Descriptors: Air
11、craft industry, aircraft equipment, connecting equipment, test English version Aerospace series Elements of electrical and optical connection Test methods Part 319: Gastightness of solderless wrapped connections Srie arospatiale Organes de connexion lectrique et optique Mthodes dessais Partie 319: E
12、tanchit aux gaz des connexions enroules sans brasure Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverfahren Teil 319: Gasdichtheit von ltfreien Wickelverbindungen This European Standard was approved by CEN on 22 June 1997. CEN members are bound to comply with the CEN/CENELEC I
13、nternal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN me
14、mber. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN membe
15、rs are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalis
16、ation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2591-319:1997 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:00:56 GMT+
17、00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-319:1997 BSI 04-1999 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has received t
18、he 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 publication of an identical text or by endorsement, at the latest by April 1998, a
19、nd conflicting national standards shall be withdrawn at the latest by April 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, Fran
20、ce, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Preparation of specimens3 4Apparatus3 5Method3 Figure 14 Licensed Copy: sheffieldun sheffieldun, na, Thu
21、 Nov 02 18:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-319:1997 BSI 04-19993 1 Scope This standard specifies a method of verifying the gastightness of solderless wrapped connections. It shall be used together with EN 2591. 2 Normative references This European Standard incorporates by da
22、ted or undated reference provisions from other publications. These normative references are cited at the appropriate 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
23、only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2591, Aerospace series Elements of electrical and optical connection Test methods General. EN 2591-101, Aerospace series Elements of electrical and optical conn
24、ection Test methods Part 101: Visual examination. EN 2591-102, Aerospace series Elements of electrical and optical connection Test methods Part 102: Examination of dimensions and mass. 3 Preparation of specimens 3.1 Specimens previously tested to EN 2591-101 and EN 2591-102 shall be prepared accordi
25、ng to the technical specification. 3.2 Unless specified in the technical specification, the following details shall be stated: type of conductor; contact-conductor combinations; type of wrapping tool; requirement. 4 Apparatus a) A sealed tube with a diameter of 16 mm and a length of 150 mm containin
26、g 1 cm3 to 2 cm3 of aqua regia (50 % nitric acid, 50 % hydrochloric acid). b) A sealed tube with a diameter of 16 mm and a length of 150 mm containing approximately 1 cm3 of a concentrated ammonium sulphide solution. 5 Method 5.1 The specimens shall be subjected to an atmosphere which changes the co
27、lour of the area of contacts not covered by the conductor. The change in colour shall be sufficient to give a sharp contrast between these areas and the rest of the contact. 5.2 Number of contacts to be tested For each contact and conductor combination, 30 specimens shall be tested. 5.3 Procedure Th
28、e specimens shall be: exposed to aqua regia vapour in the sealed tube for 10 min without contact with the solution; then transferred to the second sealed tube where they shall be exposed to the ammonium sulphide vapour without contact with the solution until their visible area blackens; dried and th
29、e conductor carefully unwrapped. 5.4 Requirement The areas shown in Figure 1, detail X, shall be visually examined (EN 2591-101) with a magnification of 5 to 20. They shall be bright over at least 75 % of corners contacting the conductor, excluding those associated with the first and last turns. Lic
30、ensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2591-319:1997 4 BSI 04-1999 Figure 1 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5blank Licensed Copy: sheffieldun sheffieldun, na
31、, Thu Nov 02 18:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2591-319:1998 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the
32、international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and servic
33、es. 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 be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an indiv
34、idual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. In respons
35、e to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through i
36、ts Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with stan
37、dards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, o
38、f the publications of the internationalstandardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior wr
39、itten permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, 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. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 18:00:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
链接地址:https://www.31doc.com/p-3740687.html