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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2348:1989 Specification for Control cable assemblies Technical specification This European Standard EN 2348 has the status of a British Standard. UDC 629.7.05:621.854.002.72:621.85.053:658.56 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+
2、00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2348:1989 This British Standard, having been prepared under the direction of the Aerospace Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 29 September 1989 BSI 12-1999 The following BSI reference
3、s relate to the work on this standard: Committee reference ACE/14 Draft for comment 88/70401 DC ISBN 0 580 17621 5 Cooperating organizations The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizations of the
4、following Western European countries. AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organ
5、ization for Standardization IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus de Qualidade SpainInstituto Espaol de Normalizacin SwedenStandardiserin
6、gskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2348:
7、1989 BSI 12-1999i Contents Page Cooperating organizationsInside front cover National forewordii Brief history2 Text of EN 23483 National appendix AInside back cover National appendix BInside back cover Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+00:00 2006, Uncontrolled Copy,
8、 (c) BSI BS EN 2348:1989 ii BSI 12-1999 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN 2348 “Aerospace series. Control cable assemblies. Technical specification”, published by the Eur
9、opean Committee for Standardization (CEN). EN 2348 was produced as a result of international discussion in which the UK took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applica
10、tion. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 8, an inside back cover and a back cover. This standard has been updated (s
11、ee copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2348 S
12、eptember 1988 UDC: 629.7.05:621.854.002.72:621.85.053:658.56 Key words: Aircraft industry, flight control, flexible cable, cable-ends, specification English version Aerospace series Control cable assemblies Technical specification Srie arospatiale Cbles de commandes quips Spcification technique Luft
13、- und Raumfahrt Seilzge fr Flugzeugsteuerungen Technische Lieferbedingungen This European Standard was accepted by CEN on 1988-03-17. CEN members are bound to comply with the requirements of CEN Internal Regulations which stipulate the conditions for giving this European Standard the status of a nat
14、ional standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version
15、in any other language made by translation under the responsibility of a CEN member into its own language and notified to CEN Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany,
16、Greece, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN 1988 Copyright reserved to all C
17、EN members Ref. No. EN 2348:1988 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2348:1988 BSI 12-1999 2 Brief history This draft European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After
18、enquiries and votes carried out in accordance with the rules of this Association, this draft 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. In accordance with the Common CEN/CENELEC Rul
19、es, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Brief history2 1Scope and field of application3 2Referen
20、ces3 3Definitions3 4Required characteristics and test methods3 5Quality assurance7 6Acceptance8 7Marking and packaging8 8Certificate of conformity8 Figure 1 (for cable ends EN 2357, EN 2358, EN 2359, EN 2360)5 Figure 2 (for cable end EN 2362)6 Figure 3 (for cable end EN 2361)6 Figure 46 Figure 56 Ta
21、ble 14 Table 26 Table 37 Table 48 Table 58 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2348:1988 BSI 12-19993 1 Scope and field of application This standard specifies the characteristics of control cable assemblies in accordance with
22、EN 2641 for aeronautical applications. 2 References ISO 2020, Aerospace series Mechanical system parts Preformed flexible steel wire rope for aircraft controls Technical specification. EN 2000, Aerospace series Quality assurance requirements for the manufacture and procurement of EN aerospace standa
23、rd products. EN 2357, Aerospace series Stud-ends, in corrosion resisting steel, swaged on type, control cable Dimensions and loads. EN 2358, Aerospace series Eye-ends, in corrosion resisting steel, swaged on type, control cable Dimensions and loads. EN 2359, Aerospace series Fork-ends, in corrosion
24、resisting steel, swaged on type, control cable Dimensions and loads. EN 2360, Aerospace series Fork-ends, in corrosion resisting steel, swaged on type, control cable, for rolling bearings Dimensions and loads. EN 2361, Aerospace series Ball-ends, in corrosion resisting steel, double shank, swaged on
25、 type, control cable Dimensions and loads. EN 2362, Aerospace series Ball-ends, in corrosion resisting steel, swaged on type, control cable Dimensions dans loads. EN 2641, Aerospace series Control cable assemblies Combinations and dimensions. 3 Definitions 3.1 production batch a production batch sha
26、ll consist of control cable assemblies originating from one production run and one composition, i.e: with cables from one reel (i.e. one material and one nominal diameter) with the same end definitions 3.2 sample the sample shall consist of: either a control cable assembly taken out at random from t
27、he batch or a test specimen consisting of: a cable of a minimum length of 500 mm, of the same characteristics as the bare cable used in the control cable assembly and originating from the same reel; cable ends swaged on the cable under the same swaging conditions as for the control cable assemblies
28、of the batch The swaging shall be produced during production of the batch in question and under the same conditions of manufacture as this batch. NOTEIf a cable assembly comprises two extremity cable ends and one intermediate cable end (EN 2361), each sample will consist of two test specimens on the
29、 ends of which the following will be swaged: one of the extremity cable ends; one intermediate cable end EN 2361 (see Figure 3). 4 Required characteristics and test methods The required characteristics and test methods are specified in Table 1. The cable shall never be degreased (see ISO 2020). Lice
30、nsed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2348:1988 4 BSI 12-1999 Table 1 ClauseCharacteristicRequirementsTest methodsAaQa 4.1Composition of the control cable assembly The control cable assembly shall have a composition in accordance wi
31、th its codified designation according to EN 2641. Visual inspection. XX 4.2External appearance No crack, distrosion or burr is permitted. The presence of a mark made by a blunt ended punch is permissible on the cable end. This punch mark is applied before swaging to keep the cable inserted in the ca
32、ble end. Visual inspection.XX 4.3Swaged part 4.3.1DimensionsSee Figure 1, Figure 2 and Figure 3 and Table 2 Usual measuring instruments.XX 4.3.2Penetration length “X” of the cable in the cable end See Figure 1.The inspection is carried out as follows: either by an X-ray examination or by the method
33、shown in Figure 5. XX 4.3.3Internal defectsSee Figure 4. After swaging: The following shall be carried out on a cross section of the swaged part: no crack or fold shall be visible to the naked eye an examination of the cross section with the naked eye XX no cracks exceeding 150 4m in depth, not more
34、 than 6 cracks of 40 to 150 4m deep shall be visible micrographic examination with 100 min. magnification. 4.4Length Ls of the cable assembly Conforming to EN 2641.Unless otherwise specified the length Ls of the cable assembly is measured the cable being pulled horizontally by a force of 50 N. XX a
35、A = Acceptance test Q = Qualification test Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2348:1988 BSI 12-19995 Table 1 ClauseCharacteristicRequirementsInspection and test methodsAaQa 4.5Mechanical properties XX 4.5.1Behaviour under a l
36、oad of 60 % of the minimum breaking strength of the cable Under a load of at least 60 % of the minimum breaking strength of the concerned cable specified in ISO 2020 no slippage of the cable shall occur in the cable end be, no broken wires shall be visible or detected by touch. It is mandatory that
37、the test is carried out with the cable in a straight line. The load shall be applied continuously and progressively (duration: 3 s). The load shall be maintained for 5 s and then reduced gradually to zero. Any sudden change in the load recorded during this test shall be considered indicative of poss
38、ible slippage in the swaged part and shall result in a very strict inspection of the cable assembly and of its length Ls. After this test the control cable assembly shall be examined carefully. 4.5.2Behaviour under minimum breaking strength of the cable No slippage of the cable in the cable ends is
39、admissible under the minimum breaking strength of the concerned cable specified in ISO 2020. The failure of the control cable assembly shall only take place under a load equal or above the minimum breaking strength. The fracture shall not take place in or close to the cable end. The load shall be ap
40、plied continuously and progressively up to 80 % of the cable minimum failure load. The remaining load shall be applied slowly at a rate of approximately 10 N/s. The absence of slippage shall be checked by visual inspection. XX Figure 1 (for cable ends EN 2357, EN 2358, EN 2359, EN 2360) Licensed Cop
41、y: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2348:1988 6 BSI 12-1999 Table 2 Figure 2 (for cable end EN 2362) Figure 3 (for cable end EN 2361) Figure 4 The length X is checked with a mark applied to the cable before swaging. No trace of bare cable
42、 shall appear between the mark and the cable end after swaging. The choice of mark (paint, adhesive tape, etc.) is left to be manufacturers discretion. Figure 5 Dimensions in millimetres Nominal cable diameter Jsa X min. a Ds 0 0,12 Csb Y max. Ms max. 0,12tol. 1,63,50184,54,832,84 0 0,12 410 2,44,83
43、2156,433,63615,5 3,25,56276,48,004,83820 4,06,353389,635,641026 4,87,95347,311,236,481230 5,69,52398,412,837,670 0,17 1435 6,411,12438,414,408,841641 a Required over the length X (see Figure 1) b Required over the length Y (see Figure 2) Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:0
44、6 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2348:1988 BSI 12-19997 5 Quality assurance 5.1 Manufacturers approval See EN 2000 5.2 Product qualification The manufacturer shall obtain separate qualification for each control cable diameter in the following 3 combinations of cable ends: 1) cable end
45、s EN 2357 or EN 2358 or EN 2359 or EN 2360 at both ends 2) cable end EN 2357 or EN 2358 or EN 2359 or EN 2360 at one end and cable end EN 2361 or EN 2362 at the other end. 3) cable end EN 2361 at one end and cable end EN 2362 at the other. Six control cable assemblies (2 in each of the above definit
46、ions) for a cable assembly of a given nominal diameter are required for the inspections and tests given in Table 3. 5.3 Inspection and tests required See Table 3 Table 3 SequenceCharacteristics specified in: Sequence number of test specimena 123456 1Composition of the control cable assembly4.1XXXXXX
47、 2External appearance4.2XXXXXX 3Length Ls of the cable assembly4.4XXXXXX 4Dimensions of swaged part4.3.1XXXXXX 5 Penetration length “X” of the cable in the cable end 4.3.2XXXXXX 6 Behaviour under a load of 60 % of the minimum breaking strength of the cable 4.5.1XXXXXX 7 Behaviour under minimum break
48、ing strength of the cable 4.5.2XXX 8Internal defects4.3.3XXX a Test specimen N. 1 and 4 consist of: a cable of a given diameter at least 500 mm in length, cable ends EN 2357 or EN 2358 or EN 2359 or EN 2360 at both ends. Test specimen N. 2 and 5: a cable of a given diameter at least 500 mm in length
49、, cable end EN 2357 or EN 2358 or EN 2359 or EN 2360 at one end, cable end EN 2361 or EN 2362 at the other end. Test specimen N. 3 and 6: a cable of a given diameter at least 500 mm in length, cable end EN 2361 at one end and cable end EN 2362 at the other. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:52:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2348:1988 8 BSI 12-1999 Table 4 Table 5 6 Acceptance 6.1 Manufacturers responsibili
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