1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4199-001:2013Aerospace series Bondingstraps for aircraftPart 001: Technical specificationBS EN 4199-001:2013 BRITISH STANDARDNational forewordThis British Standard is the U
2、K implementation of EN 4199-001:2013.It supersedes BS EN 4199-001:2006 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can beobtained on
3、request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 80147 1ICS 49.060Compliance with a British S
4、tandard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2013.Amendments issued since publicationDate Text affectedBS EN 4199-001:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN
5、4199-001 January 2013 ICS 49.060 Supersedes EN 4199-001:2006English Version Aerospace series - Bonding straps for aircraft - Part 001: Technical specification Srie arospatiale - Tresses de mtallisation pour avion - Partie 001: Spcification technique Luft- und Raumfahrt - Masseverbinder fr Luftfahrze
6、uge - Teil 001: Technische Lieferbedingungen This European Standard was approved by CEN on 3 November 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterat
7、ion. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made b
8、y translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
9、 Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARD
10、IZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4199-001:2013: EBS EN 4199-001:2013EN 4199-001:2013 (E)
11、 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Required characteristics .4 5 Design .5 6 Tests 5 7 Quality assurance 9 8 Designation . 11 9 Marking 11 10 Packaging 11 BS EN 4199-001:2013EN 4199-001:2013 (E) 3 Foreword This document (EN 4199-001:2013) has
12、been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-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 of the memb
13、er countries of ASD, 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 July 2013, and conflicting national standards shall be withdrawn at the latest by July 2013.
14、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. This document supersedes EN 4199-001:2006. According to the CEN/CENELEC Internal Regul
15、ations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, It
16、aly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4199-001:2013EN 4199-001:2013 (E) 4 1 Scope This European Standard specifies the general characteristics of bonding straps w
17、ith flat or round braided copper conductor, and terminal lugs, crimped on both ends, for use on aircraft. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition
18、 cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2591 (all parts), Aerospace series Elements of electrical and optical connection Test methods EN 3373-001, Aerospace series Terminal lugs and in-line splices for crimping on e
19、lectric conductors Part 001: Technical specification EN 3475(all parts), Aerospace series Cables, electrical, aircraft use Test methods EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts IEC 60050-581, International Electrotechnical Vocabulary P
20、art 581: Electromechanical components for electronic equipment1)3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-581 and the following apply. a flat or round braided copper conductor, tin or nickel plated; crimped on terminal lugs at both ends.
21、4 Required characteristics 4.1 General See product standard. 4.2 Temperature range See Table 1. 1)Published by: IEC International International Electrotechnical Commission http:/www.iec.ch/.BS EN 4199-001:2013EN 4199-001:2013 (E) 5 Table 1 Class Temperature range Material/finish T 65 C to 150 C Tin
22、plated copper braided conductor and tin plated copper terminal lugs N 65 C to 260 C Nickel plated copper braided conductor and nickel plated copper terminal lugs 4.3 Material Materials shall be suitable for the intended use and as specified in the product standard. 4.4 Finish See product standard. 4
23、.5 Dimensions and mass See product standard. 5 Design Bonding straps for aircraft shall be designed and assembled in a careful and competent manner so as to withstand normal handling during installation and maintenance in service. In order to achieve good reliable crimped connections the correct cri
24、mping tool shall be used. When using bonding straps on equipment or installations generating or processing frequencies greater than 100 kHz, care shall be taken not to exceed a length to width ratio of five to one for reasons of electromagnetic compatibility. 6 Tests 6.1 Tests on the braids The test
25、s of EN 3475 listed in Table 2 shall be applicable for testing of round and flat braid conductors used in the construction of bonding straps. Table 2 EN 3475- Designation of the test Details 201 Visual examination No visible deformations. 202 Mass Mass, shall be carried out on each batch of material
26、. 203 Dimensions Including correct braid angle when applicable see product standard. 301 Ohmic resistance per unit length Table, see product standard. 512 Flexure endurance As specified in the product standard. BS EN 4199-001:2013EN 4199-001:2013 (E) 6 6.2 Tests on the bonding strap assemblies The t
27、ests of EN 2591, applicable in the context of this standard as well as the details necessary for implementing them and for inspecting bonding straps are given in Table 3 of this standard. Table 3 EN 2591- Designation of the test Details 101 Visual examination Initial examined details to be examined:
28、 identification of materials in accordance with product standard; identification; appearance; marking; surface finish; final examination. 102 Examination of dimensions and mass As defined in product standard. 218 Ageing of terminal lugs and in-line splices by temperature and current cycling Test cur
29、rent and initial voltage drop as specified in product standard. Maximum deviation at end of test shall not exceed that specified in EN 2591-218. 301 Endurance at temperature Method B 20 h in dry heat at temperature of (150 5) C for tin plated or (260 5) C for nickel plated bonding straps. No deviati
30、on from tensile strength listed in this standard and from maximum permissible voltage drop specified in the appropriate product standard. 305 Rapid change of temperature Temperature cycles: Five cycles after variations 65 C to 150 C for tin plated, 65 C to 260 C for nickel plated bonding straps. No
31、deviation from tensile strength listed in this standard and from maximum permissible voltage drop specified in the appropriate product standard. 307 Salt mist 48 h or as specified in the product standard. No deviation from maximum permissible voltage drop specified in the appropriate product standar
32、d 403 Sinusoidal and random vibration Not applicable 417 Tensile strength (crimped connection) EN 3373-001, terminal lugs on both ends. The specimen shall not break at a value less than that specified in the product standard. BS EN 4199-001:2013EN 4199-001:2013 (E) 7 6.3 Ohmic resistance The ohmic r
33、esistance and test current values for complete bonding strap assemblies shall be defined in the product standard. The resistance shall be calculated from the voltage drop readings measured in accordance with Figure 1 or Figure 2 at (20 3) C. Figure 1 Bonding straps with flat braid conductor Figure 2
34、 Bonding straps with round braid conductor 6.4 Mechanical fatigue test Specimens shall be bonding straps assembled with a terminal at each end, the dimension between the stud holes being 250 mm centre to centre. The specimen shall be mounted on the test apparatus as shown in Figure 3, the axis of th
35、e terminal lugs passing through the pivot point of the apparatus. One test cycle shall consist of one flex to 50 upwards, return to neutral position followed by flex to 50 downwards and then return to the neutral, starting, position. The specimen shall be flexed for the number of cycles detailed in
36、the product standard. A visual examination and test 6.3 shall be performed after the required number of cycles has been completed. Failure of the specimen is deemed to be a complete fracture or when the resistance reading exceeds the specified requirement by more than 20 %. The results shall be repo
37、rted. BS EN 4199-001:2013EN 4199-001:2013 (E) 8 6.5 Mechanical fatigue test apparatus See Figure 3. Top view Key 1 screw and washer 2 articulation 3 mobile part of tool 4 fixed part of tool 5 spacer 6 up + 50 7 down 50 Figure 3 Mounting device BS EN 4199-001:2013EN 4199-001:2013 (E) 9 7 Quality assu
38、rance 7.1 General See EN 9133. 7.2 Qualification 7.2.1 General Qualification testing shall be carried out at the commencement of manufacture or at recommencement if there has been a stoppage in manufacture for more than three years or if there has been any change in components or tooling. The tests
39、shall be carried out in the sequences listed in Tables 4 and 5 on representative types and sizes of conductors and assemblies as agreed with the Mandated Body. Qualification of other types and sizes closely related to those already qualified may be obtained directly by similarity or by carrying out
40、a reduced range of tests by agreement with the Mandated Body. 7.2.2 Qualification of braids and conductors See Table 4. Table 4 EN 3475- Designation of the test Details 201 Visual examination No visible deformations, correct angle of braid where applicable 202 Mass See product standard. 203 Dimensio
41、ns See product standard. 301 Ohmic resistance per unit length See product standard. 512 Flexure endurance See product standard. 7.2.3 Qualification of bonding strap assemblies See Table 5. Only bonding straps assembled from certified components and using certified calibrated tooling shall be qualifi
42、ed. BS EN 4199-001:2013EN 4199-001:2013 (E) 10 Table 5 Designation of the test EN 2591- Remarks Group 0 12 specimens Visual examination 101 Examination of dimensions and mass 102 See product standard. Voltage drop (see 6.3) See product standard. Group 1 3 specimens Tensile strength (crimped connecti
43、on) 417 See product standard. Group 2 3 specimens Ageing of terminal lugs and in-line splices by temperature and current cycling 218 See product standard. Tensile strength (crimped connection) 417 Group 3 3 specimens Mechanical Fatigue (see 6.4) 10 % of the required number of flex cycles specified i
44、n the product standard Salt mist 307 48 h or as product standard Rapid change of temperature 305 Endurance at temperature 301 Visual examination 101 Voltage drop (see 6.3) a See product standard. Tensile strength (crimped connection) 417 See product standard. Group 4 3 specimens Salt mist 307 48 h o
45、r as product standard Mechanical fatigue test (see 6.4) See product standard. Visual examination 101 Voltage drop (see 6.3) a See product standard. Tensile strength (crimped connection) 417 See product standard. aThe maximum value of resistance measured in test groups 3 and 4 shall be not greater th
46、an the maximum value specified for initial resistance plus 20 % when measured using the current specified in the product standard. 7.3 Maintenance of qualification The sequence of tests shall be required at a minimum of three years for equipment in production or when production is restarted in the e
47、vent of a stoppage in manufacture for more than three years. For braid, the tests in Table 4 shall be carried out and for bonding straps assemblies, the tests in group 4 of Table 4. BS EN 4199-001:2013EN 4199-001:2013 (E) 11 7.4 Acceptance Tests The tests listed in Tables 6 and 7 shall be carried ou
48、t on each batch of material, whichever is the smaller. 7.4.1 Tests for round and flat braid conductors See Table 6. Table 6 EN 3475- Designation of the test Details 201 Visual examination All specimens 203 Dimensions All specimens 301 Ohmic resistance per unit length All specimens 7.4.2 Tests for bo
49、nding strap assemblies See Table 7. Table 7 EN 2591- Designation of the test Details 101 Visual examination All specimens 102 Examination of dimensions and mass All specimens (Dimensions only) Ohmic resistance (see 6.3) One specimen per production batch 8 Designation See product standard. 9 Marking See product standard. 10 Packaging Bonding straps shall be so packed as to avoid any damage. This page deliberately left blankThis page deliberately left blankBSI is the independent national
