1、BRITISH STANDARDBS EN 4057-306:2006Aerospace series Cable ties for harnesses Test methods Part 306: Heat ageing testThe European Standard EN 4057-306:2006 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g4
2、0g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 4057-306:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2007 BSI 2007ISBN 978 0 580 50547 8National forewordThis British
3、Standard was published by BSI. It is the UK implementation of EN 4057-306:2006. This standard, together with BS EN 4057-100:2006, BS EN 4057-201:2005, BS EN 4057-202:2005, BS EN 4057-301:2005, BS EN 4057-302:2006, BS EN 4057-303:2005, BS EN 4057-304:2006, BS EN 4057-305:2005, BS EN 4057-307:2006, BS
4、 EN 4057-401:2006, BS EN 4057-402:2006, BS EN 4057-403 (to be published), BS EN 4057-404:2006, BS EN 4057-405:2005, BS EN 4057-406:2006, BS EN 4057-407:2005 and BS EN 4056-001:2006, BS EN 4056-002 (to be published), BS EN 4056-003 (to be published), BS EN 4056-004 (to be published) and BS EN 4056-00
5、5 (to be published) supersedes BS G 246:1991 which will be withdrawn upon publication of these standards.The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to Panel ACE/6/-/8, Aerospace Installations Accessorie
6、s, tools and terminations.A list of organizations represented on ACE/6/-/8 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot
7、confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 4057-306December 2006ICS 49.060English VersionAerospace series - Cable ties for harnesses - Test methods -Part 306: Heat ageing testSrie arospatiale - Fre
8、ttes de cblage pour harnais -Mthodes dessais - Partie 306 : Vieillissement entempratureLuft- und Raumfahrt - Befestigungsbnder frLeitungsbndel - Prfverfahren - Teil 306: AlterungstestThis European Standard was approved by CEN on 28 October 2005.CEN members are bound to comply with the CEN/CENELEC In
9、ternal 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 concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN membe
10、r.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 language and notified to the Central Secretariat has the same status as the officialversions.CEN members are
11、the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and Unit
12、ed Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4057-306:2006: E
13、2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Apparatus .4 4 Procedure .4 5 Requirements.4 EN 4057-306:20063 Foreword This document (EN 4057-306:2006) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and vo
14、tes carried out in accordance with the rules of this Association, this Standard has re-ceived the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard,
15、 either by publication of an identical text or by endorsement, at the latest by June 2007, and conflicting national standards shall be withdrawn at the latest by June 2007. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/o
16、r CENELEC shall not be held responsible for identifying any or all such patent rights. 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, Den-mark,
17、 Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem-bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzer-land and the United Kingdom. EN 4057-306:20064 1 Scope This standard specifies the procedure
18、 to determine the force to failure of cable ties for harnesses for aero-space applications after a heat ageing exposure. It shall be used together with EN 4057-100. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refer-ences
19、, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 4057-100, Aerospace series Cable ties for harnesses Test methods Part 100: General EN 4057-401, Aerospace series Cable ties for harnesses Test methods Part 4
20、01: Loop tensile strength 3 Apparatus A tensile tester as required in EN 4057-401 and additional equipment for measuring elongation. A laboratory oven capable of reaching a temperature corresponding to the maximum rated temperature of the cable ties as specified in the appropriate product Standard.
21、4 Procedure A total number of nine specimens are required per material code and cross section. Mount three of the specimens on split mandrels as described in EN 4057-401. Place the three specimens mounted on the split mandrels, and further three specimens flat in the oven at the maximum rated temper
22、ature as specified in the product standard increased by (30 50+) C for 500 h with a tolerance of 240+h. Remove the specimens from the oven and submit to conditioning as specified EN 4057-100 Clause 4.1. Within 30 min after finishing the conditioning, submit the three specimens still mounted on the o
23、riginal mandrel to the loop tensile strength test specified in EN 4057-100. From the strap of the other three aged and three not aged samples prepare specimen that allow 25 mm of free length between the grips of a tensile tester. Tensile test the samples at the speed of (25 2,5) mm per min, and meas
24、ure the elongation percentage, over the gauge/test specimen length. The test is deemed complete when the sample breaks. The value of the results shall be recorded. 5 Requirements The tensile strength shall not be lower than that specified in the appropriate product standard. The elongation at break
25、of the three aged, flat samples shall not be less than the percentage of the elongation at break of the unaged, flat samples, as defined in the product standard. EN 4057-306:2006blankBS EN 4057-306:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent natio
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