BS EN 2591-313-1998 Elements of electrical and optical connection - Test methods - Artificial rain《光电连接元件 试验方法 人工降雨》.pdf

1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-313:1998 Elements of electrical and optical connection Testmethods Part 313: Artificial rain The European Standard EN2591-313:1997 has the status of a British Standard ICS 49.060BSEN 2591-313:1998 This British Standard, having been prepared under the dire

2、ctionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes into effect on 15 January 1998 BSI 04-1999 ISBN 0 580 29480 3 National foreword This British Standard is the English language version of EN2591-313:1997. The UK participation in its preparation was

3、 entrusted by 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 in

4、terpretation, 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 committee can be obtained on request to its secretary. Cross-references Attention is drawn to

5、the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement international or European publications referred to in this document may be found in t

6、he 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 not purport to include all the necessary provisions of a contract. Users of British Standards are r

7、esponsible 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 inside front cover, pages i and ii, theEN title page, pages 2 to 4and a back cover. This standard has bee

8、n 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 CommentsBSEN 2591-313:1998 BSI 04-1999 i Contents Page National foreword Inside front cover Foreword 2 T

9、ext of EN 2591-313 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN2591-313 October1997 ICS49.060 Descriptors: Aircraft industry, aircraft equipment, connecting equipment, test English version Aerospace series Elements of electrical and optical connection Test methods Part 313: Artifici

10、al rain Srie arospatiale Organes de connexion lectrique et optique Mthodes dessais Partie 313: Pluie artificielle Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverfahren Teil 313: Knstlicher Regen This European Standard was approved by CEN on 22 June 1997. CEN members are bound

11、 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 bibliographical references concerning such national standards may be obtained on application to the Cen

12、tral 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 of a CEN member into its own language and notified to the Central Secretariat has the same status as

13、 the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardi

14、zation Comit Europen de Normalisation 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 2591-313:1997 EEN 2591-313:1997 BSI 04-1999 2 Forewo

15、rd 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 the approval of the National Associations and the Official Services of the me

16、mber 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 April1998, and conflicting national standards shall be withdrawn at the latest by April19

17、98. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,

18、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 Drop generator 4EN2591-313:1997 BSI 04-1999 3 1 Scope This standard specifies a method (artificial rain) of assessin

19、g the ability of elements of connection to withstand the effects of rain or dripping water. It shall be used together with EN2591. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the

20、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 amendment or revision. For undated references the latest edition of the p

21、ublication 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 connection Test methods Part 101: Visual examination. EN 2591-206, Aerospace series Elements of electrical an

22、d optical connection Test methods Part 206: Measurement of insulation resistance. EN 2591-207, Aerospace series Elements of electrical and optical connection Test methods Part 207: Voltage proof test. 3 Preparation of specimens 3.1 Specimens shall be prepared according to the technical specification

23、. Unwired cavities shall be fitted with filler plugs. 3.2 Unless specified in the technical specification, the following details shall be stated: specimens mated or unmated and fitted with protective covers (if applicable); mounting method, type of cable and definition of specimen wiring; initial me

24、asurements and requirements (if applicable); method according to EN 2591-206 and insulation resistance value; method according to EN 2591-207 and voltage value; final measurements and requirements (if applicable). 4 Apparatus The surface of the lower part of the drop generator (seeFigure 1) shall be

25、 larger than that of the specimen. The specimen outline shall be larger than its support. The drop generator shall have a flow rate as uniform as possible over the entire surface to be watered and shall produce a rain corresponding to a depth of water in the reservoir which reduces by (4 1) mm per m

26、inute. NOTEThe water flow rate may be regulated, e.g. with sand and gravel layers separated by mesh and blotting paper. 5 Method 5.1 Initial measurements and requirements (ifapplicable) They shall be carried out in accordance with EN2591-206. 5.2 Procedure The specimens shall be exposed to a vertica

27、l rain along the three main axes, in both directions (total of six) for10min in each direction. 5.3 Final measurements and requirements (ifapplicable) The specimens shall not be unmated nor the protective covers removed prior to the following test sequence: EN 2591-206; EN 2591-207. With the connect

28、ors unmated, carry out the following test: EN 2591-101: visual examination to verify any water ingress.EN2591-313:1997 4 BSI 04-1999 Figure 1 Drop generator5 blankBS EN 2591-313:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsi

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