1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591:1992 Elements of electrical and optical connection Testmethods General The European Standard EN2591:1992 has the status of a British Standard UDC 621.316.5:620.1:629.7BSEN2591:1992 This British Standard, having been prepared under the directionof the Aero
2、space Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15December1992 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference ACE/6 Draft for comment 91/74940 DC ISBN 0 580 20706 4 Cooperating organiz
3、ations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardis
4、eringsraad Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazional
5、e Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige S
6、witzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN2591:1992 BSI 11-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN2591 3 National annex
7、 NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-reference Inside back coverBSEN2591:1992 ii BSI 11-1999 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English langua
8、ge version of EN2591:1992 “Aerospace series Elements of electrical and optical connection Test methods General” published by the European Committee for Standardization (CEN). EN2591 was produced as a result of international discussions in which the UnitedKingdom took an active part. A British Standa
9、rd 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 pages This document comprises a front cover, a
10、n inside front cover, pages i and ii, theEN title page, pages2 to8, an inside back cover 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.EUROPEAN STANDARD NORME EUR
11、OPENNE EUROPISCHE NORM EN2591 October 1992 UDC 621.316.5:620.1:629.7 Descriptors: Aerospace industry, aircraft equipment, elements of electrical and optical connection, test English version Aerospace series Elements of electrical and optical connection Testmethods General Srie arospatiale Organes de
12、 connexion lectrique et optique Mthodes dessais Gnralits Luft- und Raumfahrt Elektrische und optische Verbindungselemente Prfverfahren Allgemeines This European Standard was approved by CEN on1992-10-19. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the co
13、nditions 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 member. This European Standard exists in thr
14、ee 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 members are the national standards bodies of Au
15、stria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: r
16、ue de Stassart 36, B-1050 Brussels 1992 Copyright reserved to CEN members Ref. No. EN2591:1992 EEN2591:1992 BSI 11-1999 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 rul
17、es of this Association, this standard has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. According to the Common CEN/CENELEC Rules, the following countries are bound to implement this Europ
18、ean Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. This European Standard shall be given the status of a national standard, either by publication of an identical
19、text or by endorsement, at the latest by April1993, and conflicting national standards shall be withdrawn at the latest by April1993. Contents Page Foreword 2 1 Scope 3 2 References 3 3 Definitions 3 4 Test conditions 4 5 List of test methods 4 6 Test report 7 Table 1 4EN2591:1992 BSI 11-1999 3 1 Sc
20、ope This standard specifies the general requirements for the test methods of elements of electrical, optical and data transmission system connections used in aerospace applications. 2 References This European Standard incorporates by dated or undated reference, provisions from other publications. Th
21、ese 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 amendment or revision. For unda
22、ted references the latest edition of the publication referred to applies. IEC50(581), International electrotechnical vocabulary Chapter581: Electromechanical components for electronic equipment. IEC512-1, Electromechanical components for electronic equipment; basic testing procedures and measuring m
23、ethods Part1: General. EN2083, Copper and copper alloy conductors for electrical cables Aerospace series 1) . EN2084, Electric cables for general purpose with conductors in copper or copper alloy Technical specification Aerospace series 1) . EN2234, Aerospace series Fire resistant electrical cables
24、Technical specification 2) . EN2346, Aerospace series Fire resistant electrical cables Dimensions, conductor resistance and mass 3) . 3 Definitions The general terms used are those specified in IEC50(581) and IEC512-1 to which shall be added: 3.1 element of electrical or optical connection 4) compon
25、ent such as connector, module, etc. the purpose of which is to ensure the connection of circuits 3.2 flight cover (or protective cover) accessory designed to ensure, in flight, mechanical protection and sealing of front face of a non coupled connector 3.3 connector with built-in protection of contac
26、ts connector with characteristics such that the male or female contacts, mounted in a plug or receptacle, cannot be touched by the front of the connector to which it is coupled (scoop-proof) and in which, in the event of accidental coupling of two parts of connector equipped with male contacts, no e
27、lectrical contact can take place 3.4 initial measurement examination or measurement of characteristics carried out to determine the magnitude of the variations produced by the stress or stresses applied. This examination or measurement is carried out at the end of the pre-conditioning and under norm
28、al atmospheric conditions of measurement 3.5 final measurement examination or measurement of characteristics carried out at the end of the recovery to assess the condition of the specimen after the test and to determine the magnitude of the variations in characteristics in relation to the values rec
29、orded during the initial measurement 3.6 flammability a product is considered to be non-flammable when the combustion due to exposure of a given duration to a standard external flame remains localized and stops spontaneously after withdrawal of the flame 3.7 fire resistance a product is considered t
30、o be fire-resistant when, being subjected to a standard flame: it retains its electrical role for six minute the flame does not propagate from the other side of the support before the twentieth minute. 3.8 values of alternating voltage and current unless otherwise indicated, alternating voltage and
31、current are indicated in root mean square values 1) Published as AECMA Standard at the date of publication of the present standard 2) In preparation at the date of publication of the present standard. 3) Published as AECMA pre-standard at the date of publication of the present standard. 4) In the te
32、st standards the term element of connection shall be used.EN2591:1992 4 BSI 11-1999 3.9 line data bus pair of twisted wires, shielded, having a specified impedance, a matched impedance at its two ends and used for data transport 3.10 branch line section of twisted wires, shielded, with a specified i
33、mpedance, which connects equipment to a bus line 3.11 line coupler element of electrical or optical connection the purpose of which is to shunt the transmission signals from a bus line to equipment 3.12 line coupler, single coupler consisting of one line and one branch 3.13 line coupler, double coup
34、ler consisting of one line and two branches 3.14 in-line splice permanent element of electrical connection for two-wire cables 3.15 line termination end line component the purpose of which is to match the bus line to its characteristic impedance 3.16 branch termination end branch termination the pur
35、pose of which is to possibly substitute equipment 3.17 recovery treatment of a specimen, after conditioning, in order that the properties of the specimen may be stabilized before measurements 4 Test conditions 4.1 The test methods are drafted so that the test may be carried out either individually o
36、r included into a test file. This is why If applicable has been added to the titles Initial measurements and Final measurements . When the test is carried out individually, the measurements are applicable so that the effect of the test on the performances of the specimen can be evaluated. When the t
37、est is included into a test file, the initial and final states of the specimen shall be checked at the beginning and the end of the test file. The initial and final measurements indicated in each test method are thus not applicable to each test. 4.2 Unless otherwise indicated in the test method, tec
38、hnical specification or product standard, the test conditions shall be as follows: The temperature and humidity shall remain constant throughout a series of measurements. Unless otherwise indicated in the technical specification, the cables used for the tests shall be in accordance with EN2083 and E
39、N2084 or EN2234 and EN2346. 5 List of test methods See Table 1. Table 1 temperature : (23 5) C; atmospheric pressure : 86kPa to106kPa (860mbar to1060mbar); relative humidity : 45%to75%. EN 2591 part Designation of the test A1 Visual examination A2 Examination of dimensions and mass B1 Contact resist
40、ance Low level B2 Contact resistance at rated current B3 Electrical continuity at microvolt level B4 Discontinuity of contacts in the microsecond range B5 Housing (shell) electrical continuity B6 Measurement of insulation resistance B7 Voltage proof testEN2591:1992 BSI 11-1999 5 Table 1 EN 2591 part
41、 Designation of the test B8 Temperature rise due to rated current B9 Current temperature derating B10 Electrical overload B11 Capacitance measurement B12 Surface transfer impedance B13 Shielding effectiveness from100MHz to1GHz B14 Lightning proofness B15 Impedance measurement in open circuit B16 Eng
42、agement of contacts C1 Endurance at temperature C2 Climatic sequence C3 Cold/low pressure and damp heat C4 Damp heat steady state C5 Rapid change of temperature C6 Mould growth C7 Salt mist C8 Sand and dust C9 Dry heat C10 Cold C11 Low air pressure C12 Air leakage C13 Driving rain (artificial) C14 I
43、mmersion at low air pressure C15 Fluid resistance C16 Ozone resistance C17 Flammability C18 Fire-resistance C19 Gas-tightness of solderless wrapped connections C20 Simulated solar radiation at ground level C21 Damp heat, cyclic test C22 Hermeticity C23 Thermal shock C24 Interfacial sealingEN2591:199
44、2 6 BSI 11-1999Table 1 EN 2591 part Designation of the test D1 Acceleration, steady state D2 Shock D3 Sinusoidal and random vibrations D4 Transverse load (external bending moment) D5 Axial load D6 Mechanical endurance D7 Durability of contact retention system and seals (Maintenance ageing) D8 Mating
45、 and unmating forces D9 Contact retention in insert D10 Insert retention in housing (axial) D11 Insert retention in housing (torsional) D12 Contact insertion and extraction forces D13 Holding force of grounding spring system D14 Unmating of lanyard release connectors D15 Test probe damage (female co
46、ntact) D16 Contact bending strength D17 Tensile strength (crimped connection) D18 Gauge insertion and extraction forces in and out of a female contact D19 Stability of male contacts in insert D20 Mechanical strength of rear accessories D21 Free fall D22 Locking wire hole strength D23 Available D24 S
47、tripping force, solderless wrapped connections D25 Unwrapping, solderless wrapped connections D26 Contact retention system effectiveness (removable contact walkout) D27 Robustness of protective cover attachment E1 Soft soldering E2 Restricted entry E3 Contact deformation after crimping E4 Residual m
48、agnetism E5 Contact protection effectiveness (scoop-proof) E6 Use of tools E7 Contact coating porosity E8 Measurement of thickness of coating on contacts E9 Adhesion of coating on contacts E12 Recommandation to check effectiveness of non removable fixing of hermetically sealed connector shellEN2591:
49、1992 BSI 11-1999 7 6 Test report A test report shall be prepared for each test specifying: number of the test method standard; conditions under which it has been carried out; results.8 blankBSEN2591:1992 BSI 11-1999 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/6 upon which the following b
