1、BRITISH STANDARD AEROSPACE SERIESBS EN 2591-100:2005Elements of electrical and optical connection Test methods Part 100: GeneralThe European Standard EN 2591-100:2005 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g
2、44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 2591-100:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 10 February 2006 BSI 10 February 2006ISBN 0 580 47798 3Nationa
3、l forewordThis British Standard is the official English language version of EN 2591-100:2005.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 has the res
4、ponsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled
5、“International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with
6、 a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international
7、 and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 19 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued s
8、ince publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2591-100October 2005ICS 49.060English VersionAerospace series - Elements of electrical and optical connection- Test methods - Part 100: GeneralSrie arospatiale - Organes de connexion lectrique etoptique - Mthodes
9、 dessais - Partie 100 : GnralitsLuft- und Raumfahrt - Elektrische und optischeVerbindungselemente - Prfverfahren - Teil 100:AllgemeinesThis European Standard was approved by CEN on 19 September 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditi
10、ons for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three offic
11、ial versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belg
12、ium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT
13、EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2591-100:2005: E2 Contents Page Foreword 3 1 Scope .4 2 Normative refer
14、ences .4 3 Terms and definitions.4 4 Standard test conditions 7 5 Others 8 5.1 Fibre end preparation .8 5.2 Termination cleaning 10 5.3 Light Launch System (LLS)10 5.4 Light Detection System (LDS)13 6 List of test methods14 7 Test report .19 EN 2591-100:20053 Foreword This European Standard (EN 2591
15、-100:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries 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 o
16、f 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 2006, and conflicting national standards shall be withdrawn at the latest b
17、y April 2006. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standard
18、s organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slova
19、kia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 2591-100:20054 1 Scope This standard specifies the general requirements for the methods of testing elements of electrical, optical and data transmission system connections used in aerospace applications. 2 Normative references The
20、following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2083, Aerospace series Copper or copper alloy cond
21、uctors for electrical cables Product standard. EN 2084, Aerospace series Cables, electric, single-core, general purpose, with conductors in copper or copper alloy Technical specification. EN 2234, Aerospace series Cables, electrical, fire-resistant Technical specification.1) EN 2346, Aerospace serie
22、s Fire resistant electrical cables Dimensions, conductor resistance and mass. 1)EN 2591*, Aerospace series Elements of electrical and optical connection Test methods. EN 3745-201, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 201: Visual examination. EN 60512-1, Connect
23、ors for electronic equipment Tests and measurements Part 1: General (IEC 60512-1:2001) TR 4257, Aerospace series Elements of electrical and optical connection Relationship between the numbering systems for parts of EN 2591. 2)IEC 60050-581, International Electrotechnical Vocabulary Chapter 581: Elec
24、tromechanical components for electronic equipment. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. See IEC 60050-581 and EN 60512-1. 3.1 element of electrical or optical connection 3)component such as connector, module, etc., the purpose of which
25、 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 1) Published as AECMA Prestandard at the date of publication of this standard. 2) Published as AECMA Tec
26、hnical Report at the date of publication of this standard. 3) In test standards the term “element of connection“ shall be used. EN 2591-100:20055 3.3 connector with built-in protection of contacts connector with characteristics such that male or female contacts, mounted in a plug or receptacle, cann
27、ot come into contact with the front of the connector to which it is coupled (scoop-proof) and in which, in the event of accidental coupling of two parts or the connector equipped with male contacts, no electrical contact can take place 3.4 contact pressure point point at which a square ended gauge p
28、in of the same basic diameter as the mating contact first engages the female contact spring member 3.5 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
29、 is carried out at the end of pre-conditioning and under normal atmospheric conditions for measuring. 3.6 final measurement examination or measurement of characteristics carried out at the end of the recovery to assess the condition of the specimen after testing and to determine the magnitude of the
30、 variations in characteristics in relation to the values recorded at initial measuring 3.7 flammability a product is considered to be “non-flammable“ when combustion due to exposure for a given duration to a standard external flame remains localized and stops spontaneously after withdrawal of the fl
31、ame 3.8 fire resistance a product is considered to be “fire-resistant“ when, subjected to a standard flame: it retains its electrical role for six minutes; the flame does not propagate to the other side of the support in the first twenty minutes. 3.9 values of alternating voltage and current unless
32、otherwise indicated, alternating voltage and current are indicated in root mean square values 3.10 line data bus pair of twisted wires, shielded, having a specified impedance, a matched impedance at its two ends and used for data transport 3.11 branch line section of twisted wires, shielded, with a
33、specified impedance, which connects equipment to a bus line 3.12 line coupler element of electrical or optical connection the purpose of which is to shunt the transmission signals from a bus line to equipment 3.13 line coupler, single coupler consisting of one line and one branch EN 2591-100:20056 3
34、.14 line coupler, double coupler consisting of one line and two branches 3.15 in-line splice permanent element of electrical or optical connection for two-wire cables 3.16 line termination end line component the purpose of which is to match the bus line to its characteristic impedance 3.17 branch te
35、rmination end branch termination the purpose of which is to eventually replace equipment 3.18 recovery treatment of a specimen, after conditioning, so that the properties of the specimen may be stabilized before measuring 3.19 optical fibre cable a certain number of optical fibres or bundles, coated
36、 separately and joined inside a common sheath 3.20 beam splitter device for dividing an optical beam into two separate beams 3.21 insertion loss (of an optical element) extra optical attenuation caused by the insertion of an extra optical element into an optical system 3.22 launch angle the launch a
37、ngle is the angle between the wave propagation vector of the incoming light and the normal vector of an optic fibre end face 3.23 multimode fibre a multimode fibre is an optical fibre having a large core diameter dimension in relation to the wavelength of the light, and in which a large number of mo
38、des can propagate 3.24 optical port the port which radiates or accepts optical power at the interface 3.25 fibre optic branching device a device possessing three or more optical ports which shares optical power among its ports in a predetermined fashion 3.26 patchord an assembly where the cable or f
39、ibre is terminated at each end with either a plug or socket connector EN 2591-100:20057 3.27 pigtail a pigtail is a short length of fibre between a component and a transmission fibre, often permanently secured to the component (LED, coupler, connection elements, .) 3.28 single mode fibre a single mo
40、de fibre is an optical fibre in which only one mode can propagate 3.29 passive coupler a passive coupler is a passive branching device in which power from one or more incoming optical ports is distributed to one or more outgoing optical ports 3.30 tee coupler an optical fibre tee coupler is a passiv
41、e coupler or combiner with three optical ports 3.31 return loss light energy reflected back from discontinuities in a fibre optic link 3.32 light launch system LLS device designed to create defined and repeatable light coupling conditions in a test setup 3.33 light detection system LDS device design
42、ed to take repeatable measurements of light transmitted by a test setup 3.34 temporary joint non permanent optical fibre connecting devices for use on equipment 3.35 terminator a non-reflective termination of an optical fibre 3.36 For the following terms, see EN 3745-201. Optical fibre - Core - Clad
43、ding - Primary coating - Refractive index profile - Step index fibre - Graded index fibre - Quasi-step index fibre - Core diameter - Cladding diameter - Concentricity error core/cladding - Non circularity of core - Non circularity of cladding - Attenuation - Numerical aperture - Bandwith 4 Standard
44、test conditions 4.1 The test methods are written so that the test may be carried out either individually or included in a test sequence. 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. Thi
45、s is why “if applicable“ has been added to the titles “Initial measurements“ and “Final measurements“. 4.2 Unless otherwise indicated in the test method, technical specification or product standard, the test conditions shall be as follows: EN 2591-100:20058 temperature: (23 5) C; atmospheric pressur
46、e: 86 kPa to 106 kPa (860 mbar to 1 060 mbar); relative humidity: 45 % to 75 %. The temperature and humidity shall remain constant throughout a series of measurements. Unless otherwise indicated in the technical specification, the cables used for tests shall be in accordance with EN 2083 and EN 2084
47、 or EN 2234 and EN 2346. 5 Others 5.1 Fibre end preparation 5.1.1 General The aim of this paragraph is to give recommendations on preparing the ends of fibres, whether terminated or not. It is not intended to describe a precise method for fibre end preparation; instead it gives the information neces
48、sary to describe and quantify fibre and quality. This paragraph is applicable therefore to all tests which require the use of at least one optical interface of this type. It applies to all types of fibre, silica, plastic or a combination of these and other materials, irrespective of their diameter.
49、5.1.2 Parameters The following parameters define the quality of a fibre end: surface condition; perpendicularity of the optical face relative to the axis of symmetry of the fibre; surface flatness. Surface condition (see Figure 1) The face of the optical fibre shall not exhibit any nicking or lips and internal defects such as cracks 4). Surface defects (hackle and mist zone) of the fibre core area shall not exceed 0,5 m in size. R = 0,5 m max. Figure 1 4) Cracks made by a cleaving tool are acceptable if they
