1、ASD STANDARD NORME ASD ASD NORM prEN 4604-008 Edition P 1 December 2008 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Avenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: 49.060 Descriptors: ENGLISH
2、 VERSION Aerospace series Cable, electrical, for signal transmission Part 008: Cable, 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
3、Leitungen fr Signalbertragungen Teil 008: Koaxialkabel, 50 Ohm, 200 C, Typ WD Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the Eu
4、ropean Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, wi
5、thout re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN nationa
6、l members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 31 December 2008 Comments should be sent within six months after the date of publication to
7、 ASD-STAN Electrical Domain Copyright 2008 by ASD-STAN prEN 4604-008:20082 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Terms and definitions .3 4 Required characteristics.3 5 Quality assurance9 6 Designation 9 7 Identification and marking . 10 8 Colours of components and jacket. 10
8、9 Packaging, labelling and delivery lengths .10 10 Technical specification 10 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Ma
9、nual, this standard has received approval for Publication. prEN 4604-008:2008 3 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 frequency up to
10、 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 latest edit
11、ion 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 series
12、 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 definitions g
13、iven in EN 3475-100 apply. 4 Required characteristics 4.1 Material, constructions, dimension and mass 4.1.1 Material See Table 1. *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 an
14、d Materials (ASTM), 100 Barr Harbor Drive,. PO Box C700, West Conshohocken, PA 19428-2959 USA. prEN 4604-008:20084 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 ASTM-B298-99. Class A s
15、ilver plated Jacket Fluorocarbon white 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 Conductor Dielectric Shield Cable g
16、/m min. 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. EN WD FR F 011 2 3 4 prEN 4604-008:2008 5 4.2 General characteristics Operating temperature: 55 C to 200 C Minimum bend radius: in static use: 40 mm in dynamic use: 80 mm Performa
17、nces are guaranteed up to 8 GHz. 4.3 Electrical characteristics Characteristic impedance: Zc = (50 2) at 200 MHz Capacitance per unit length: Cp = 85 pF/m Transfer impedance: see Table 4. Operating voltage: 1 000 V RMS max. Maximum power handling (at sea level): See Table 3. Attenuation versus frequ
18、ency: See Table 3. 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 5,0 7,2 9,1 10,7 16,1 28, 39,6 55,0 61,0 110,0Attenuation nom. dB/100 m 4,6 6,5 8,
19、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 30 100 Transfer impedance Zt max. m/m 4,2 4 1,3 0,6 1,0 2,3 5,5 prEN 4604-008:200
20、86 4.4 Tests See Table 5. 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 resistance per unit length Applicable 5,5 /km 302 Voltage proof test Applicable Dielectric Dry test: 2 500 V AC
21、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 applicable 306 Continuity of conductors Applicable 307 Corona extinction voltage Applicable Extinction voltag
22、e 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 temperature Not applicable 406 Cold bend test Not applicable 407 Flammability Applicable. Method 1. Load
23、= 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 to wet arc tracking Not applicable 604 Resistance to dry arc propagation Not applicable 605 Wet short cir
24、cuit 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 Applicable Except when marking on tape between shield and jacket 704 Flexibility The force to crush the loop b
25、y 25 % shall be 10 N maximum. continued prEN 4604-008:2008 9 Table 5 (concluded) EN 3475- Designation of the test Remarks 705 Contrast measurement Not applicable 706 Laser markability Not applicable 801 Capacitance per unit length Applicable See 4.3. 802 Capacitance unbalance Not applicable 803 Capa
26、citance 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. 807 Transfer impedance Applicable See Table 4. 808 Cross-talk Not applicable 809 Resistance unbalance Not applicable 810 Str
27、uctural 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 Designation EXAMPLE Description block CABLE, COAXIAL Identity block EN4604-008WD Number of this standard Cable code (see TR 6058)
28、NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. prEN 4604-008:200810 7 Identification and marking 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 specification See EN 4604-001.
