1、BRITISH STANDARD AEROSPACE SERIESBS EN 2591-609:2005Elements of electrical and optical connection Test methods Part 609: Optical elements Effectiveness of cable attachment Cable cyclic flexingThe European Standard EN 2591-609:2005 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44
2、g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 2591-609:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee o
3、n 10 February 2006 BSI 10 February 2006ISBN 0 580 47803 3National forewordThis British Standard is the official English language version of EN 2591-609:2005.The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to
4、 Subcommittee ACE/6/-/3, Aerospace Connectors, which has the responsibility 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 docume
5、nt may be found in the BSI Catalogue under the section entitled “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. Us
6、ers are responsible for its correct application. Compliance with 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 chang
7、e, and keep UK interests informed; monitor related international 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 8, an inside back cover and a back cover.The BSI copyright notice displ
8、ayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2591-609October 2005ICS 49.060English VersionAerospace series - Elements of electrical and optical connection- Test methods - P
9、art 609: Optical elements - Effectiveness ofcable attachment - Cable cyclic flexingSrie arospatiale - Organes de connexion lectrique etoptique - Mthodes dessais - Partie 609 : Organesoptiques - Efficacit de lattache du cble - Flexion cycliquedu cbleLuft- und Raumfahrt - Elektrische und optischeVerbi
10、ndungselemente - Prfverfahren - Teil 609: OptischeElemente - Wirksamkeit der Leitungsbefestigung -Zyclische FlexibilittThis 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 conditions for giving t
11、his 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 official versions (En
12、glish, 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, Belgium, Cyprus, Cze
13、ch 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 EUROPEN DE NORMA
14、LISATIONEUROPISCHES 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 2591-609:2005: E2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Prepa
15、ration of specimens 4 4 Apparatus 4 5 Methods .5 5.1 Method A procedure .5 5.2 Method A final measurements and requirements.5 5.3 Method B procedure .6 5.4 Method B final measurements and requirements.7 5.5 Method C procedure .7 5.6 Method C final measurements and requirements.8 EN 2591-609:20053 Fo
16、reword This European Standard (EN 2591-609:2005) 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 As
17、sociations 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 the latest by April 2006, and conflicting national standa
18、rds shall be withdrawn at the latest by 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 Inter
19、nal Regulations, the national standards 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, Nether
20、lands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 2591-609:20054 1 Scope This standard specifies three methods of checking the effectiveness of cable attachment in the cyclic flexing mode for optical connection elements (including permanent co
21、nnections) and fibre optic couplers. It shall be used together with EN 2591-100. 2 Normative references The 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 r
22、eferenced document (including any amendments) applies. EN 2591-100, Aerospace series Elements of electrical and optical connection Test methods Part 100: General. EN 2591-601, Aerospace series Elements of electrical and optical connection Test methods Part 601: Optical elements Insertion loss. EN 25
23、91-602, Aerospace series Elements of electrical and optical connection Test methods Part 602: Optical elements Variation of attenuation and optical discontinuity. EN 2591-6101, Aerospace series Elements of electrical and optical connection Test methods Part 6101: Optical elements Visual examination.
24、 3 Preparation of specimens 3.1 The specimens shall be fitted with normal accessories and terminated as specified in the product standard. If not yet at standard test conditions, the specimens shall be subjected to standard test conditions and stabilized at these conditions for 24 h as defined in EN
25、 2591-100. 3.2 Unless otherwise indicated in the technical specification, the following details shall be stated: type and length of cable/fibre (L2); load; maximum permissible variation of attenuation; maximum value of insertion loss. 4 Apparatus See EN 2591-602 plus: a test set-up capable of applyi
26、ng the flexing cycles at the specified rate; method A: a typical arrangement is shown in Figure 1; method B: a typical arrangement is shown in Figure 2; method C: a typical arrangement is shown in Figure 3. EN 2591-609:20055 5 Methods 5.1 Method A procedure A mated pair of optical connection element
27、s, couplers or splices shall be fitted to the set-up as shown in Figure 1. The specimen shall be rotated 180 in one direction from the start position, then returned to the start position. This defines one cycle. The minimum admissible radius (R) shall be six times the diameter of the cable or cable
28、bundle size, but not less than 20 mm. The cable shall run freely in the guide (G). The number of cycles shall be 100, unless otherwise specified in the product standard. Dimension L1 shall be three times the cable diameter or cable bundle size but not less than 20 mm. The variation of attenuation (E
29、N 2591-602 - Method A) shall be monitored throughout the test and shall not exceed the value specified in the product standard. 5.2 Method A final measurements and requirements EN 2591-6101: Visual examination EN 2591-601: Insertion loss EN 2591-609:20056 Key 1 Cycle 2 Specimen 3 Load 4 Cable is not
30、 held under tension L3 : shall be sufficiently long to rotate through 180 Figure 1 Method A 5.3 Method B procedure The receptacle or plug shall be mounted as shown in Figure 2. The tensile force defined by the technical specification shall be applied to the cable. The element of connection shall be
31、subjected to the specified number of rotations in one direction at a rate of 10 rpm to 20 rpm. Caution: the apparatus shall be able to guarantee the minimum bend radius of the cable as specified in product standard. EN 2591-609:20057 5.4 Method B final measurements and requirements During test the c
32、able shall not become dislodged from the contact or connection. EN 2591-6101: Visual examination EN 2591-601: Insertion loss Key 1 Free rotation 2 Mated connectors 3 Minimum bend radius (three places) Figure 2 Method B 5.5 Method C procedure A mated pair of optical connectors shall be mounted as sho
33、wn schematically in Figure 3, the pendulum length L as defined in the product standard. A tensile load, also defined in the product standard, is applied by means of the weight attached to the cable. EN 2591-609:20058 An initial optical reading is noted with cable in the vertical (0) position and the
34、 cable flexed by means of the pendulum arm 90, 180, 90 (back to the initial position) for one flexing cycle. A total of N cycles are repeated (in accordance with the total number specified in the product standard) with an optical reading noted in the “rest“ position every five cycles. 5.6 Method C f
35、inal measurements and requirements EN 2591-6101: Visual examination, with requirements as detailed in the technical specification EN 2591-601: Insertion loss, with requirements as detailed in the technical specification Key 1 To light source 5 Pulley 2 Connector under test 6 cable 3 Pivoted at end o
36、f strain relief 7 Weight 4 Pendulum arm 8 To detector Figure 3 Method C EN 2591-609:2005blankBS EN 2591-609:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards
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