1、BS EN4604-008:2009ICS 49.060NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Cable, electrical, forsignal transmissionPart 008: Cable, coaxial, 50 ohms,200C., Type WD Product standardThis British Standardwas published underthe authority of theSta
2、ndards Policy andStrategy Committee on 30September 2009 BSI 2009ISBN 978 0 580 63701 8Amendments/corrigenda issued since publicationDate CommentsBS EN 4604-008:2009National forewordThis British Standard is the UK implementation of EN 4604-008:2009.The UK participation in its preparation was entruste
3、d to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its
4、 correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 4604-008:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4604-008 August 2009 ICS 49.060 English Version Aerospace series - Cable, electrical, for signal transmission - Part 008: Cable
5、, coaxial, 50 ohms, 200 C., Type WD - Product standard Srie arospatiale - Cbles lectriques pour transmission de signaux - Partie 008: Cble, coaxial, 50 ohms, 200 C, type WD - Norme de produit Luft- und Raumfahrt - Elektrische Leitungen fur Signalubertragungen - Teil 008: Koaxialkabel, 50 Ohm, 200 C,
6、 Typ WD - Produktnorm This European Standard was approved by CEN on 20 June 2009. 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
7、bibliographical references 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 responsibi
8、lity of a CEN member 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland
9、, Ireland, Italy, 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 Ma
10、rnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4604-008:2009: EBS EN 4604-008:2009EN 4604-008:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Requir
11、ed characteristics .4 5 Quality assurance . 10 6 Designation . 10 7 Identification and marking . 11 8 Packaging, labelling and delivery lengths . 11 9 Technical specification 11 BS EN 4604-008:2009EN 4604-008:2009 (E) 3 Foreword This document (EN 4604-008:2009) has been prepared by the Aerospace and
12、 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 member countries of ASD, prior to its
13、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 February 2010, and conflicting national standards shall be withdrawn at the latest by February 2010. Attention is drawn to the
14、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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countri
15、es are bound to implement this European Standard: Austria, Belgium, Bulgaria, 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,
16、 Sweden, Switzerland and the United Kingdom. BS EN 4604-008:2009EN 4604-008:2009 (E) 4 1 Scope This standard specifies the required characteristics of a coaxial cable, 50 , type WD, for use in aircraft electrical systems at operating temperature between 55 C and 200 C and specially for high frequenc
17、y up to 8 GHz. Nevertheless, if needed, 65 C is also acceptable as shown by thermal stability test. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the late
18、st edition of the referenced document (including any amendments) applies. EN 3475-100*, Aerospace series Cables, electrical, aircraft use Test methods Part 100: General. EN 4604-001, Aerospace series Cable, electrical, for signal transmission Part 001: Technical specification. EN 4604-002, Aerospace
19、 series Cable, electrical, for signal transmission Part 002: General. TR 6058, Aerospace series Cable code and identification list. 1)ASTM-B298-99, Standard specification for silver-coated soft or annealed copper wire. 2)3 Terms and definitions For the purposes of this document, the terms and defini
20、tions given in EN 3475-100 apply. 4 Required characteristics 4.1 Material, constructions, dimension and mass 4.1.1 Material See Table 1. Table 1 Material Material Finish Colour Conductor Multi-strands copper per ASTM-B298-99 Class A silver plated Dielectric Fluorocarbon Shield 2 braids, copper per A
21、STM-B298-99. Class A silver plated Jacket Fluorocarbon white *And all parts quoted in this standard. 1) Published as ASD Technical Report at the date of publication of this standard. 2) Published by: American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive,. PO Box C700, West Conshoh
22、ocken, PA 19428-2959 USA. BS EN 4604-008:2009EN 4604-008:2009 (E) 5 4.1.2 Construction, dimensions and mass See Figure 1 and Table 2. EN WD FR F 01ConductorDielectricShieldJacketKey 1 Conductor 2 Dielectric 3 Shield 4 Jacket Figure 1 Construction Table 2 Dimensions and mass Diameter (mm) Mass Conduc
23、tor Dielectric Shield Cable g/mmin. max. nom. max. 2,33 0,05 (37 0,34) mm 5,9 6,1 7,1 0,1 7,70 0,20 130 137 Shield strand diameter shall be 0,13 mm. 4.2 General characteristics a) Operating temperature: 55 C to 200 C b) Minimum bend radius: 1) in static use: 40 mm 2) in dynamic use: 80 mm c) Perform
24、ances are guaranteed up to 8 GHz. 4.3 Electrical characteristics a) Characteristic impedance: Zc = (50 2) at 200 MHz b) Capacitance per unit length: Cp = 85 pF/m WD FR F 01 2 3 4 BS EN 4604-008:2009EN 4604-008:2009 (E) 6 c) Transfer impedance: see Table 4. d) Operating voltage: 1 000 V RMS max. e) M
25、aximum power handling (at sea level): See Table 3. f) Attenuation versus frequency: See Table 3. g) Velocity of propagation: 240 000 km/s (Vr = 80 %) min. Table 3 Frequency, attenuation, power handling and VSWR Frequency MHz 50 100 150 200 400 1 000 1 600 2 500 3 000 8 000Attenuation max. dB/100 m 5
26、,0 7,2 9,1 10,7 16,1 28,6 39,6 55,0 61,0 110,0Attenuation nom. dB/100 m 4,6 6,5 8,3 9,7 14,6 26,0 36,0 50,0 55,0 105,0Power cw nom. W 5 700 4 000 3 100 2 700 1 800 1 000 730 530 480 250 Max. return loss VSWR 1,10 1,15 1,20 1,35 Table 4 Frequency, transfer impedance Frequency MHz 0 to 0,01 0,1 1 5 10
27、 30 100 Transfer impedance Zt max. m/m 4,2 4 1,3 0,6 1,0 2,3 5,5 4.4 Tests See Table 5. BS EN 4604-008:2009EN 4604-008:2009 (E) 7 Table 5 EN 3475- Designation of the test Remarks 201 Visual examination 202 Mass Applicable 137 g/m max. 203 Dimensions Applicable See 4.1 and Table 2. 301 Ohmic resistan
28、ce per unit length Applicable 5,5 /km 302 Voltage proof test Applicable Dielectric Dry test: 2 500 V AC Jacket Dry impulse: 5 000 V Dry test: 1 750 V AC 303 Insulation resistance Applicable 5 000 M.km between shield and conductor304 Surface resistance Not applicable 305 Overload resistance Not appli
29、cable 306 Continuity of conductors Applicable 307 Corona extinction voltage Applicable Extinction voltage 1 500 V 401 Accelerated ageing Not applicable 402 Shrinkage and delamination Not applicable 403 Delamination and blocking Not applicable 404 Thermal shock Not applicable 405 Bending at ambient t
30、emperature Not applicable 406 Cold bend test Not applicable 407 Flammability Applicable. Method 1. Load = 20 N Extinction time 10 m Load application time = 2 minutes Attenuation: See Table 3. Impedance: See 4.3. VSWR: See Table 3. 601 Smoke density Applicable 602 Toxicity Applicable 603 Resistance t
31、o wet arc tracking Not applicable 604 Resistance to dry arc propagation Not applicable 605 Wet short circuit test Not applicable 701 Strippability and adherence of insulation to conductor Applicable 15 N to 75 N 702 Screen pushback capability Applicable 703 Permanence of manufacturers marking Applic
32、able Except when marking on tape between shield and jacket 704 Flexibility The force to crush the loop by 25 % shall be 10 N maximum. continued BS EN 4604-008:2009EN 4604-008:2009 (E) 10 Table 5 (concluded) EN 3475- Designation of the test Remarks 705 Contrast measurement Not applicable 706 Laser ma
33、rkability Not applicable 801 Capacitance per unit length Applicable See 4.3. 802 Capacitance unbalance Not applicable 803 Capacitance variation Not applicable 804 Velocity of propagation Applicable See 4.3. 805 Characteristics impedance Applicable See 4.3. 806 Attenuation Applicable See 4.3, Table 3
34、. 807 Transfer impedance Applicable See Table 4. 808 Cross-talk Not applicable 809 Resistance unbalance Not applicable 810 Structural return loss Not applicable 811 Unbalance attenuation Not applicable 812 Return loss (VSWR) Applicable See 4.3 and Table 3. 5 Quality assurance See EN 4604-001. 6 Desi
35、gnation EXAMPLE Description blockCABLE, COAXIAL Identity blockEN4604-008WD Number of this standard Cable code (see TR 6058) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. BS EN 4604-008:2009EN 4604-008:2009 (E) 11 7 Identification and marking
36、Colour of the marking shall be black or green. See EN4604-002 8 Packaging, labelling and delivery lengths 8.1 Packaging and labelling See EN 4604-001. 8.2 Delivery lengths Delivery on cable drums (about 100 metres). Minimum length of each piece: 30 metres. / 2 pieces per drum. 9 Technical specificat
37、ion See EN 4604-001. BS EN4604-008:2009BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards InstitutionBSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Euro
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