1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 3475-100:2010Aerospace series Cables,electrical, aircraft use TestmethodsPart 100: GeneralBS EN 3475-100:2010 BRITISH STANDARDNational forewordThis British Standard is the
2、UK implementation of EN 3475-100:2010.It supersedes BS EN 3475-100:2002 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of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. BSI 2010ISBN 978 0 580 64916 5ICS 49.060Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Sta
4、ndard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2010.Amendments issued since publicationDate Text affectedBS EN 3475-100:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3475-100 September 2010 ICS 49.060 Supersedes EN 3475-100:2002Englis
5、h Version Aerospace series - Cables, electrical, aircraft use - Test methods - Part 100: General Srie arospatiale - Cbles lectriques usage aronautique - Mthodes dessais - Partie 100: GnralitsLuft- und Raumfahrt - Elektrische Leitungen fr Luftfahrtverwendung - Prfverfahren - Teil 100: Allgemeines Thi
6、s European Standard was approved by CEN on 27 February 2010. 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 alteration. Up-to-date lists and bibliographical refer
7、ences concerning such national standards may be obtained on application to the CEN 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 by translation under the responsibility of a CEN member
8、into its own language and notified to the CEN 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, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, I
9、taly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1
10、000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3475-100:2010: EBS EN 3475-100:2010EN 3475-100:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Symbols and abbreviati
11、ons 85 Test conditions 86 List of test methods .8BS EN 3475-100:2010EN 3475-100:2010 (E) 3 Foreword This document (EN 3475-100:2010) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with
12、the rules of this Association, this Standard has received 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 publication of an identic
13、al text or by endorsement, at the latest by March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. This document supersedes EN 3475-100:2002. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.
14、CEN and/or 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, Bulgaria, Croatia, Cypru
15、s, 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 the United Kingdom. BS EN 3475-100:2010EN 3475-100:2010 (E
16、) 4 1 Scope This European Standard gives general information and the list of test methods for the different characteristics required for cables used in aircraft electrical circuits. 2 Normative references The following referenced documents are indispensable for the application of this document. For
17、dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 3475 (all parts) Aerospace series Cables, electrical, aircraft use Test methods 3 Terms and definitions For the purposes of this document, th
18、e following terms and definitions apply. 3.1 conductor conducting element of a cable formed from one or more strands 3.2 strand metallic cylindrical component of uniform section used to form the conductor or shielding 3.3 plated strand strand covered by a thin metallic layer in order to improve perf
19、ormance or facilitate connections 3.4 jacket external covering of a cable containing one or more screened or unscreened conductor(s) 3.5 insulation part of the cable surrounding the conductor and consisting of insulating material 3.6 sheath protective envelope added to the insulated conductor when n
20、ecessary to improve its properties of mechanical resistance or resistance to fluids NOTE It may also be added to provide a surface to facilitate marking. 3.7 screen conducting envelope applied to the cable or conductors so as to reduce electromagnetic or electrostatic interference BS EN 3475-100:201
21、0EN 3475-100:2010 (E) 5 3.8 concentric conductor assembly comprising several strands, all arranged in the form of a spiral, in regular layers NOTE The directions of lay of the strand, passing from one stranded layer to the next layer is either alternate or the same. The lay for the various layers ma
22、y be different or the same. 3.9 bunched conductor assembly of several strands, all arranged in the form of a spiral, in the same direction and with the same lay 3.10 rope stranded conductor assembly comprising a certain number of concentric or bunched conductors arranged in the form of a spiral and
23、in regular layers, the different layers being laid in opposite directions 3.11 specimen portion of conductor or cable of defined length, taken from a particular section of cable 3.12 insulated conductor the whole of the conductor and its insulation which makes up a complete cable with one or more co
24、nductors 3.13 cable, electrical assembly consisting of conductor, insulation and, where applicable, sheath, screen and jacket 3.14 airframe cable cable suitable for open aircraft wiring and engine compartments without additional protection 3.15 fire-resistant cable cable which is capable of maintain
25、ing a defined performance during the application of a standard 1 100 C flame for a period of 5 min 3.16 fire proof cable cable which is capable of maintaining a defined performance during the application of a standard 1 100 C flame for a period of 15 min 3.17 conductor cross-sectional areas sums of
26、the cross-sectional areas of the component strands of the conductor 3.18 conductor size number used to define the gauge of the conductor, this number corresponds approximately to the American Wire Gauge number 3.19 direction of cabling (or lay) “lefthand“ direction of lay is shown in the sketch belo
27、w BS EN 3475-100:2010EN 3475-100:2010 (E) 6 Figure 1 Lefthand lay Key 1 Strands 2 Conductor 3 Insulation 4 Sheath 5 Core or insulated conductor 6 Complete cable/wire Figure 2 Equivalence of terms and designations BS EN 3475-100:2010EN 3475-100:2010 (E) 7 Key 1 Core 2 Cabled cores 3 Inner sheath 4 Ou
28、ter jacket 5 Screen: braid or spiral screen 6 Multicore twisted, screened and jacketed cable (example 3 cores) Figure 3 Equivalence of terms and designations Figure 4 Conductor Key 1 Strand Figure 5 Concentric stranded conductor Figure 6 Rope lay strand Figure 7 Bunched conductor BS EN 3475-100:2010
29、EN 3475-100:2010 (E) 8 4 Symbols and abbreviations = numerical value of Celsius temperature for which Rwill be calculated R= resistance per unit length at C R20 = resistance per unit length at 20 C (reference value) U= voltage drop at C U20= voltage drop at 20 C T1, T2, etc. = successive temperature
30、s mentioned in a test procedure method I1, I2, etc. = currents mentioned in a test procedure method 5 Test conditions Unless otherwise stated in the test method, the technical specification, or the product standard, the test conditions shall be: temperature: (20 5) C; atmospheric pressure: 86 kPa to
31、 106 kPa (860 mbar to 1 060 mbar); relative humidity: 45 % to 75 %. The temperature and humidity shall remain constant during a series of measurements. 6 List of test methods See Tables 1 to 7. Table 1 General tests EN 3475- Designation of the test 201 Visual examination 202 Mass 203 Dimensions BS E
32、N 3475-100:2010EN 3475-100:2010 (E) 9 Table 2 Electrical tests EN 3475- Designation of the test 301 Ohmic resistance per unit length 302 Voltage proof test 303 Insulation resistance 304 Surface resistance 305 Overload resistance 306 Continuity of conductors 307 Corona extinction voltage Table 3 Envi
33、ronmental tests EN 3475- Designation of the test 401 Accelerated ageing 402 Shrinkage and delamination 403 Delamination and blocking 404 Thermal shock 405 Bending at ambient temperature 406 Cold bend test 407 Flammability 408 Fire resistance 409 Air-excluded ageing 410 Thermal endurance 411 Resistan
34、ce to fluids 412 Humidity resistance 413 Wrap back test 414 Differential scanning calorimeter (DSC test) 415 Rapid change of temperature 416 Thermal stability 417 Fire resistance of cables confined inside a harness 418 Thermal endurance for conductors BS EN 3475-100:2010EN 3475-100:2010 (E) 10 Table
35、 4 Mechanical tests EN 3475- Designation of the test 501 Dynamic cut-through 502 Notch propagation 503 Scrape abrasion 504 Torsion 505 Tensile test on conductors and strands 506 Plating continuity 507 Adherence of plating 508 Plating thickness 509 Solderability 510 Tensile strength and elongation of
36、 extruded insulation, sheath and jacket material 511 Cable-to-cable abrasion 512 Flexure endurance 513 Deformation resistance (Installation with plastic cable ties) 514 Porosity of copper cladding on aluminium strands 515 Crush resistance Table 5 Sundry tests EN 3475- Designation of the test 601 Smo
37、ke density 602 Toxicity 603 Resistance to wet arc tracking 604 Resistance to dry arc propagation 605 Wet short circuit test Table 6 Handling tests EN 3475- Designation of the test 701 Strippability and adherence of insulation to the conductor 702 Screen pushback capability 703 Permanence of manufact
38、urers marking 704 Flexibility 705 Contrast measurement 706 Laser markability BS EN 3475-100:2010EN 3475-100:2010 (E) 11 Table 7 High frequency tests EN 3475- Designation of the test 801 Capacitance per unit length 802 Capacitance unbalance 803 Capacitance variation 804 Velocity of propagation 805 Ch
39、aracteristic impedance 806 Attenuation 807 Transfer impedance 808 Cross-talk 809 Resistance unbalance 810 Structural return loss 811 Unbalance attenuation 812 Return loss (VSWR) 813 Power rating This page deliberately left blankThis page deliberately left blankBSI is the independent national body re
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