1、BRITISH STANDARDBS EN 4057-302:2006Aerospace series Cable ties for harnesses Test methods Part 302: FlammabilityThe European Standard EN 4057-302:2006 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59
2、g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 4057-302:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2007 BSI 2007ISBN 978 0 580 50549 2National forewordThis British Stan
3、dard was published by BSI. It is the UK implementation of EN 4057-302:2006. 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 4057-303:2005, BS EN 4057-304:2006, BS EN 4057-305:2005, BS EN 4057-306:2006, BS EN 4057-307:2006, BS EN
4、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 4056-005 (t
5、o be published) supersedes BS G 246:1991 which will be withdrawn upon publication of these standards.The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre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 Accessories, t
6、ools 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 conf
7、er immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 4057-302December 2006ICS 49.060English VersionAerospace series - Cable ties for harnesses - Test methods -Part 302: FlammabilitySrie arospatiale - Frettes de
8、cblage pour harnais -Mthodes dessais - Partie 302 : Tenue la flammeLuft- und Raumfahrt - Befestigungsbnder frLeitungsbndel - Prfverfahren - Teil 302: EntflammbarkeitThis European Standard was approved by CEN on 28 October 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations
9、 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 member.This European St
10、andard 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 the national stand
11、ards 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 United Kingdom.EUROPEA
12、N 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 4057-302:2006: E2 Contents Page Fo
13、reword3 1 Scope 4 2 Normative references 4 3 Apparatus .4 4 Procedure .4 5 Requirements.4 EN 4057-302:20063 Foreword This document (EN 4057-302:2006) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in
14、 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, either by publica
15、tion 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/or CENELEC shall no
16、t 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, Estonia, Finland,
17、 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 4057-302:20064 1 Scope This standard specifies the procedure to determine the
18、burning characteristics of cable ties for harnesses for aerospace applications. 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, only the edition cited applies. For und
19、ated 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 3 Apparatus A hood or cabinet free from air currents, a 9,5 mm Bunsen burner set up as described in Figure 1. 4 Pro
20、cedure The tail of the cable tie shall be cut back to the uniform section. The specimen shall be mounted horizontally. The Bunsen burner shall be adjusted to give a 75 mm non-luminous flame with a blue cone of 25 mm. Insert a bare copper wire of (0,7 0,025) mm diameter, and having a free length of n
21、ot less than 100 mm, into the flame, the end of the wire being immediately above the tip of the inner cope. Adjust the burner so that the wire starts to melt within 4 s to 6 s of being inserted into the flame. The Bunsen burner shall be held at a (45 5) angle to the specimen and the tip of the strap
22、 be introduced into the blue cone of the flame for (10 10+) s. The time taken for the flaming specimen to extinguish after removal from the flame shall be recorded and any ob-servation of falling burning or flaming particles shall also be recorded. NOTE Care should be exercised in performing this te
23、st as toxic fumes may be given off during combustion. 5 Requirements The specimen shall meet the requirements as specified in the appropriate product standard. EN 4057-302:20065 Key 1 Clamp 2 Test specimen 3 Burner Figure 1 EN 4057-302:2006BS EN 4057-302:2006BSI389 Chiswick High RoadLondonW4 4ALBSI
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