1、BRITISH STANDARD AEROSPACE SERIES Elements of electrical and optical connection - Test methods Part 313. Artificial rain The European Standard EN 2591313 : 1997 has the status of a British Standard ICs 49.060 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPRIGm LAW BS EN 2591-313 : 1998
2、I STD.BSI BS EN 2592-313-ENGL 2778 Lb24bb9 Ob73424 b5L Amd No. BS EN 2691313 : 1998 Date Text afm National foreword This British Standard is the English language version of EN 2591313 : 1997. The UK participation in its preparation was entrusted by Technical Committee ACW6, Aerospace avionic, electr
3、ical and fibre optic technology, to Subcommittee ACWW, Aerospace connectors, which has the responsibility to: - aid enquirem to understand the text; - present to the responsible internationallEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests i
4、nformed; - 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 the fact that CEN and CENELEC Standards normally include an anne
5、x which lists nonnative references to international publications with their corresponding European publications. The British Standards which implement internaiional or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled Internatio
6、nal Standards Correspondence Index, or by using the Fnd facility of the BSI Standards Eledmnic Catalogue. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a fmnt cover, an inside front cover, the EN title page, pag
7、es 2 to 5, a blank page, an inside back cover and a back cover. 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 O BSI 1998 ISBN O 580 29480 3 STD.BS1 BS
8、EN 2571-313-ENGL 1778 D Lb24bb7 b73425 598 EUROPEAN STANDARD NORME EUROPENNE EUROPAISCHE NORM EN 2591-313 October 1997 ICs 49.060 Descriptors: aircraft industry, aircraft equipment, connecting equipment, test English version Aerospace series - Elements of electrical and optical connection - Test met
9、hods - Part 313: Artificial rain SBrie arospatiale - Organes de connexion lectrique el optique - MBlhodes dessais - Partie 313: Pluie artffmalle Luft- und Raumfahrt - Ebktrische und optische Vetbindungselemente - Prfvedahren -Teil 313: Knstlicher Regen This European Standard was approved by CEN on 2
10、2 June 1997. CEN members are bound to comply with lhe CEWCENELEC Internal Regulations which stipulate lhe oonditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lias and biblicgraphical references concerning such national standards may be ob
11、tained 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 of a CEN member into its own language and notified to the Centrai Se
12、cretariat has the same status as lhe otrical versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Poriugal. Spain, Sweden, Switzerland and United Kingdom. EURO
13、PEAN COMMiTEE FOR STANDARDiZAION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FOR NORMUNG Central Sacretarlot: rue de Stassart. 36 8-1050 Brussels Q 1997 CEN Ail rights d exploitation in any form and by any means reserved wordwide for CEN national Members. Ref. No. EN 2591-313:1997 E Page 2
14、EN 2591-31 3: 1997 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 the approval of the National Associations and the O
15、fficial 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, and conflicting national standards shall be withdra
16、wn at the latest by April 1998. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxem
17、bourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Page 3 EN 2591 -31 3: 1997 1 Scope This standard specifies a method (artificial rain) of assessing the ability of elements of connection to withstand the effects of rain or dripping water. It shall be used toget
18、her with EN 2591. 2 Normative references This European Standard incorporates by dated 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 amendm
19、ents 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 publication referred to applies. EN 2591 Aerospace series - Elements of electrical and optical connection - Test m
20、ethods - General EN2591-101 Aerospace series - Elements of electrical and optical connection - Test methods - Part 1 O1 : Visual examination EN 2591-206 Aerospace series .- Elements of electrical and optical connection - Test methods - Part 206: Measurement of insulation resistance EN 2591-207 Aeros
21、pace series - Elements of electrical and optical connection - Test methods - Part 207: Voltage proof test 3 Preparation of specimens 3.1 Unwired cavities shall be fitted with filler plugs. Specimens shall be prepared according to the technical specification. 3.2 - specimens mated or unmated and fitt
22、ed with protective covers (if applicable); - mounting method, type of cable and definition of specimen wiring; - initial measurements and requirements (if applicable); - method according to EN 2591-206 and insulation resistance value; - method according to EN 2591-207 and voltage value; - final meas
23、urements and requirements (if applicable). Unless specified in the technical specification, the following details shall be stated: Page 4 EN 2591-313: 1997 4 Apparatus The surface of the lower part of the drop generator (see figure 1) shall be larger than that of the specimen. The specimen outline s
24、hall be larger than its support. The drop generator shall have a flow rate as uniform 8s 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 f 1) mm per minute. NOTE: The water flow rate may be regulated, e.g.
25、 with sand and gravel layers separated by mesh and blotting paper. E O O N t Specimen Reservoir 1 20 mm, 20 mm I Figure 1 - Drop generator STD-BSI BS EN 2591-3L3-ENGL 1998 m Lb24bb7 b73427 133 m Page 5 EN 2591-313: 1997 5 Method 5.1 Initial measurements and requirements (if applicable) They shall be
26、 carried out in accordance with EN 2591-206. 5.2 Procedure The specimens shall be exposed to a vertical rain along the three main axes, in both directions (total of six) for 10 min in each direction. 5.3 The specimens shall not be unmated nor the protective covers removed prior to the following test
27、 sequence: Final measurements and requirements (if applicable) - EN 2591-206; - EN 2591-207. With the connectors unmated, carry out the following test: - EN 2591 -1 O1 : visual examination to verify any water ingress. BS EN 2591-313 : 1998 BSI 389 Chiswick High Road London w4 4AL 3SI - British Stand
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