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、g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Mon May 08 02:55:31 BST 2006, Uncontrolled Copy, (c) BSIBS EN 2591-609:2005This British Standa
3、rd was published under the authority of the Standards Policy and Strategy Committee on 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 T
4、echnical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to 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 Standa
5、rds which implement international or European publications referred to in this document 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 p
6、ublication does not purport to include all the necessary provisions of a contract. Users 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 interna
7、tional/European committee any enquiries on the interpretation, or proposals for change, 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 pag
8、e, pages 2 to 8, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Mon May 08 02:55:31 BST 2006, Uncontrolled Copy, (c) BSIEUROPEA
9、N STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2591-609October 2005ICS 49.060English VersionAerospace series - Elements of electrical and optical connection- Test methods - Part 609: Optical elements - Effectiveness ofcable attachment - Cable cyclic flexingSrie arospatiale - Organes de connexion lectriq
10、ue etoptique - Mthodes dessais - Partie 609 : Organesoptiques - Efficacit de lattache du cble - Flexion cycliquedu cbleLuft- und Raumfahrt - Elektrische und optischeVerbindungselemente - Prfverfahren - Teil 609: OptischeElemente - Wirksamkeit der Leitungsbefestigung -Zyclische FlexibilittThis Europe
11、an 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 this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references con
12、cerning such nationalstandards may be obtained 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 translationunder the responsibility of a CEN member into its own l
13、anguage and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, M
14、alta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation i
15、n any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2591-609:2005: ELicensed Copy: Wang Bin, na, Mon May 08 02:55:31 BST 2006, Uncontrolled Copy, (c) BSI2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Preparation of specimens 4 4 Apparatus 4 5 Methods
16、 .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 2591-609:2005Licensed Copy: Wang Bin, na, Mon May 08 02:55:31
17、BST 2006, Uncontrolled Copy, (c) BSI3 Foreword 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
18、received the approval of the National Associations 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 Apr
19、il 2006, and conflicting national standards 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 ri
20、ghts. According to the CEN/CENELEC Internal 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, Latv
21、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 2591-609:2005Licensed Copy: Wang Bin, na, Mon May 08 02:55:31 BST 2006, Uncontrolled Copy, (c) BSI4 1 Scope This standard specifies three methods of chec
22、king the effectiveness of cable attachment in the cyclic flexing mode for optical connection elements (including permanent connections) and fibre optic couplers. It shall be used together with EN 2591-100. 2 Normative references The following referenced documents are indispensable for the applicatio
23、n 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 2591-100, Aerospace series Elements of electrical and optical connection Test methods Part 100: General. EN 2591-601,
24、 Aerospace series Elements of electrical and optical connection Test methods Part 601: Optical elements Insertion loss. EN 2591-602, Aerospace series Elements of electrical and optical connection Test methods Part 602: Optical elements Variation of attenuation and optical discontinuity. EN 2591-6101
25、, Aerospace series Elements of electrical and optical connection Test methods Part 6101: Optical elements Visual examination. 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 conditio
26、ns, the specimens shall be subjected to standard test conditions and stabilized at these conditions for 24 h as defined in EN 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
27、 variation of attenuation; maximum value of insertion loss. 4 Apparatus See EN 2591-602 plus: a test set-up capable of applying 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 ar
28、rangement is shown in Figure 3. EN 2591-609:2005Licensed Copy: Wang Bin, na, Mon May 08 02:55:31 BST 2006, Uncontrolled Copy, (c) BSI5 5 Methods 5.1 Method A procedure A mated pair of optical connection elements, couplers or splices shall be fitted to the set-up as shown in Figure 1. The specimen sh
29、all 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 bundle size, but not less than 20 mm. The cable shall run freely in the guide (G). The num
30、ber 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 (EN 2591-602 - Method A) shall be monitored throughout the test and shall not exceed the val
31、ue specified in the product standard. 5.2 Method A final measurements and requirements EN 2591-6101: Visual examination EN 2591-601: Insertion loss EN 2591-609:2005Licensed Copy: Wang Bin, na, Mon May 08 02:55:31 BST 2006, Uncontrolled Copy, (c) BSI6 Key 1 Cycle 2 Specimen 3 Load 4 Cable is not held
32、 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 subje
33、cted 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 2591-609:2005Licensed Copy: Wang Bin, na, Mon May 08 02:55:31 BST 2006, Uncontrolled C
34、opy, (c) BSI7 5.4 Method B final measurements and requirements During test the cable 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
35、.5 Method C procedure A mated pair of optical connectors shall be mounted as shown 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 2591-609:2005Licen
36、sed Copy: Wang Bin, na, Mon May 08 02:55:31 BST 2006, Uncontrolled Copy, (c) BSI8 An initial optical reading is noted with cable in the vertical (0) position and the 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 re
37、peated (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 final measurements and requirements EN 2591-6101: Visual examination, with requirements as detailed in the technical specification EN 25
38、91-601: 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 of strain relief 7 Weight 4 Pendulum arm 8 To detector Figure 3 Method C EN 2591-609:2005Licensed Copy: Wang Bin, na, Mon May 08 02:55:3
39、1 BST 2006, Uncontrolled Copy, (c) BSIblankLicensed Copy: Wang Bin, na, Mon May 08 02:55:31 BST 2006, Uncontrolled Copy, (c) BSIBS EN 2591-609:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. I
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