1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-318:1998 Elements of electrical and optical connection Testmethods Part 318: Fire-resistance The European Standard EN 2591-318:1998 has the status of a British Standard ICS 49.060BSEN 2591-318:1998 This British Standard, having been prepared under the dir
2、ectionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes intoeffect on 15 August 1998 BSI 05-1999 ISBN 0 580 30306 3 National foreword This British Standard is the English language version of EN2591-318:1998. The UK participation in its preparation was
3、entrusted to Technical Committee ACE/6, Aerospace avionic, electrical and fibre optic technology, to Subcommittee ACE/6/3, Aerospace Connectors which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the inte
4、rpretation, or proposals for change, and keep the UKinterests 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. Cross-references The British Standards
5、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 Catalogue. A British Standard doe
6、s 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 insi
7、de front cover, pages i and ii, theEN 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. Amendments issued since publication Amd. No. Date Co
8、mmentsBSEN 2591-318:1998 BSI 05-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 2591-318 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2591-318 June 1998 ICS 49.060 Descriptors: Aircraft industry, aircraft equipment, connecting equipment, test English
9、version Aerospace series Elements of electrical and optical connection Test methods Part 318: Fire-resistance Srie arospatiale Organes de connexion lectrique et optique Mthodes dessais Partie 318: Rsistance au feu Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverfahren Teil 318
10、: Feuerbestndigkeit This European Standard was approved by CEN on 22 June 1997. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bi
11、bliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility
12、 of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands,
13、Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved
14、 worldwide for CEN national Members. Ref. No. EN 2591-318:1998 EEN 2591-318:1998 BSI 05-1999 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, thi
15、s 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 publication of an identical text or by endorsement, at th
16、e latest by December 1998, and conflicting national standards shall be withdrawn at the latest by December 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, CzechRe
17、public, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Preparation of specimens 3 4 Apparatus 3 5 Method 3 Figure 1 Test se
18、tup 4 Figure 2 Basic diagram 4EN 2591-318:1998 BSI 05-1999 3 1 Scope This standard specifies a method of determining fire-resistance of elements of connection. It shall be used together with EN 2591. 2 Normative references This European Standard incorporates by dated or undated reference provisions
19、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 only when incorporated in it by amen
20、dment or revision. For undated references the latest edition of the publication referred to applies. ISO 2685, Aircraft Environmental conditions and test procedures for airborne equipment Resistance to fire in designated fire zones. EN 2234, Aerospace series Fire-resisting electrical cables Technica
21、l specification 1) . EN 2591, Aerospace series Elements of electrical and optical connection Test methods General. 3 Preparation of specimens 3.1 Specimens shall be prepared according to the technical specification. Specimens shall be wired with cable bundles450mm min. in length. There shall be atle
22、ast one circuit for each contact size. In each circuit, the contacts shall be connected in series. In the case of high numbers of contacts of the same size, two circuits may be required, one connecting in series the even-numbered contacts and the other the odd-numbered contacts. 3.2 Unless specified
23、 in the technical specification, the following details shall be stated: mounting method, type of cable (e.g.EN2234: fire-resistant) and definition of specimen wiring; initial measurements (if applicable); value of leakage current (phase 1); nominal current to be applied to contacts (phase 1); number
24、 and position of burners. 4 Apparatus 4.1 The mated specimens shall be mounted on a steel sheet representative of a firewall as shown in Figure 1. The assembly shall be rigidly secured to a vibration generator. 4.2 The circuits shall be connected to an electrical installation as shown in Figure 2. 4
25、.3 Flame In accordance with ISO 2685 The temperature of the flame shall be checked before and after the test according to ISO2685. 4.4 The burner shall be positioned as shown in Figure 1. For large size specimens, several burners shall be installed as specified so that the specimens shall be wholly
26、enveloped in flame. 5 Method 5.1 Initial measurements (if applicable) They shall be carried out as specified. 5.2 Procedure The specimens shall be simultaneously exposed to the flame and vibrations at a constant frequency between 30 Hz and 60 Hz of 100 m/s 2acceleration throughout the tests. 5.2.1 P
27、hase 1 During the first 5 min, the contacts shall carry a constant current of the specified nominal value: switch 2 is closed, switch 1 is open (see Figure 2). After the fifth minute, a potential of 200 V r.m.s. to260 V r.m.s., 40 Hz to 60 Hz, shall be applied for1min between each of the circuits an
28、d 100 V to 130 V potential between each circuit and the housing (shell): switch 1 is closed, switch 2 is open (see Figure 2). 5.2.2 Phase 2 The flame shall be applied for 14 min, with no voltage on the circuits. 5.3 Requirements 5.3.1 Phase 1 There shall be no electrical discontinuity during the fir
29、st 5 min and no leakage current higher than the specified value during the sixth minute. 5.3.2 Phases 1 and 2 No flame shall be visible on the side of the specimen not exposed to the burner. 1) Published as AECMA Prestandard at the date of publication of this standardEN 2591-318:1998 4 BSI 05-1999 F
30、igure 1 Test setup Figure 2 Basic diagram5 blankBS EN 2591-318:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level.
31、It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards 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 services. We would be gratefu
32、l if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called
33、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:02089969001. Fax:02089967001. In response to orders for international standa
34、rds, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to
35、Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with standards developments and receive substantial
36、discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the internationalstandardiz
37、ation 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 written permission from BSI. This does not preclude
38、 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:02089967070.
