1、ASD STANDARD NORME ASD ASD NORM prEN 4604-007 Edition P 3 October 2005 PUBLISHED BY THE AEROSPACE AND DEFENSE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Gulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8111 - www.asd-stan.orgICS: 49.060 Supersedes edition P 2 November
2、 2002 Descriptors: ENGLISH VERSION Aerospace series Cable, electrical, for signal transmission Part 007: Cable, coaxial, 50 Ohms, 200 C, type WN Product standard Srie arospatiale Cbles lectriques pour transmission de signaux Partie 007 : Cble, coaxial, 50 Ohms, 200 C, type WN Norme de produit Luft-
3、und Raumfahrt Elektrische Leitungen fr Signalbertragungen Teil 007: Koaxialkabel, 50 Ohm, 200 C, Typ WN Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The European Association of Aerospace Industries - Standardization). It is published for the
4、 needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this pre-standard, the technical content shall not be changed to an extent that interchangeability is affected, physically or
5、 functionally, without 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)
6、. The CEN national 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 October 2005 Comments should be sent within six months after the date o
7、f publication to ASD-STAN Electrical Domain Copyright 2005 by ASD-STAN prEN 4604-007:20052 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 Gener
8、al Process Manual, this standard has received approval for Publication. Contents Page 1 Scope . 3 2 Normative references 3 3 Terms and definitions . 3 4 Required characteristics 4 4.1 Material, construction, dimensions and mass 4 4.1.1 Material. 4 4.1.2 Construction, dimensions and mass. 4 4.2 Gener
9、al characteristics . 5 4.3 Electrical characteristics. 5 4.4 Tests 6 5 Quality assurance 9 6 Designation. 9 7 Identification and marking. 9 8 Packaging, labelling and delivery lengths. 9 8.1 Packaging and labelling . 9 8.2 Delivery lengths. 9 9 Technical specification 9 prEN 4604-007:20053 1 Scope T
10、his standard specifies the required characteristics of a coaxial cable, 50 , type WN, for use in aircraft electrical systems at operating temperature between 55 C and 200 C and specially for high frequency up to 6 GHz. 2 Normative references The following referenced documents are indispensable for t
11、he application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 3475*, Aerospace series Cables, electrical, aircraft use Test methods. EN 3475-100, Aerospace series Cab
12、les, electrical, aircraft use Test methods Part 100: General. EN 4604-001, Aerospace series Cable, electrical, for signal transmission Part 001: Technical specification.1)EN 4604-002, Aerospace series Cable, electrical, for signal transmission Part 002: General. 1)EN 9133, Aerospace series - Quality
13、 management systems - Qualification Procedure for Aerospace Standard Parts TR 6058, Aerospace series Cable code identification list. 2)ASTM B298-99, Standard specification for silver-coated soft or annealed copper wire. 3)MIL-PRF-39012, Connectors, coaxial, radio frequency, general specification for
14、. 4)3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3475-100 and the following apply. 3.1 Epsilon () value of dielectric constant * All its parts quoted in this standard. 1) Published as AECMA Prestandard at the date of publication of this standard. 2
15、) Published as AECMA Technical Report at the date of publication of this standard. 3) Published by: American Society for Testing and Materials (ASTM), 1916 Race Street, Philadelphia, PA 19103, USA. 4) Published by: Department of Defence (DOD), the Pentagon, Washington D.C. 20301 USA. prEN 4604-007:2
16、005 (E) 4 Required characteristics 4.1 Material, construction, dimensions and mass 4.1.1 Material See Table 1. Table 1 Material Material Finish Colour Conductor Single-strand copper per ASTM B298-99 1 m silver plated Dielectric Fluorocarbon dielectric with low epsilon (PTFE) Screen (foil) Tape, silv
17、er plated copper or silver alloy Shield Braid, copper per ASTM B298-99 1 m silver plated Jacket Extruded Fluorinated Ethylene Propylene (FEP) Violet 4.1.2 Construction, dimensions and mass See Figure 1 and Table 2. EN WN FR F 001 2 3 4 5 Key 1 Conductor 2 Dielectric 3 Screen 4 Shield 5 Jacket Figure
18、 1 Construction 4 prEN 4604-007:20055 Table 2 Dimensions and mass Diameter mm Conductor Dielectric Shield Cable Mass g/m min. nom. max. min. max. min. nom. max. nom. max. 2,27 2,30 2,33 6,1 6,3 7,5 0,2 7,80 8,00 8,20 135 145 In order to ensure mechanical integrity (connection strength as per MIL-PRF
19、-39012) the minimum shield strand diameter shall be 0,20 mm. The dielectric diameter (min. max.) shall be maintained during the connection (after unwrapping off screen). 4.2 General characteristics Operating temperature: 55 C to 200 C Minimum bend radius: in static use: 80 mm in dynamic use: 120 mm
20、Performances are guaranteed up to 6 GHz. 4.3 Electrical characteristics Characteristic impedance: Zc = (50 3) Capacitance per unit length: Cp = 82 pF/m max. Transfer impedance up to 400 MHz: 20 m /m max. Operating voltage: 1000 V RMS max. Maximum power handling (at sea level): see Table 3 and Figure
21、 2. Attenuation versus frequency: see Table 3 and Figure 2. Velocity of propagation: v 243.000 km/s (vr = 81 % min.). Table 3 Frequency, attenuation and power handling Frequency MHz 50 100 400 1 000 5 000 6000 Attenuation dB/100 m 3,5 5,5 10 15 35 41 Power handling W 8 000 5 000 3 000 2 000 800 700
22、prEN 4604-007:2005Figure 2 Maximum attenuation curve (ascending) Power curve (descending) 4.4 Tests See Table 4. Table 4 EN 3475- Designation of the test Remarks 201 Visual examination Applicable 202 Mass Applicable 203 Dimensions Applicable See 4.1 and Table 2. 301 Ohmic resistance per unit length
23、Applicable 4,22 /km max. 302 Voltage proof test Applicable Dielectric Dry test: 3 000 VAC Jacket Dry impulse: 5 000 V Dry test: 1 750 VAC 303 Insulation resistance Applicable 5 000 M.km between shield and conductor 304 Surface resistance Not applicable 305 Overload resistance Not applicable 306 Cont
24、inuity of conductors Applicable 307 Corona extinction voltage Not applicable 6 prEN 4604-007:20057 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
25、applicable 406 Cold bend test Not applicable 407 Flammability Applicable Load = 20 N 408 Fire resistance Not applicable 409 Air-excluded ageing Not applicable 410 Thermal endurance Not applicable 411 Resistance to fluids Applicable 412 Humidity resistance Not applicable 413 Wrap back test Not applic
26、able 414 Differential scanning calorimeter (DSC test) Not applicable continued Table 4 (continued) EN 3475- Designation of the test Remarks 415 Rapid change of temperature Applicable Variation of capacitance: 5 % max. Increase of attenuation: 5 % max. Shrinkage: 1,5 mm max. First specimen length (C,
27、): 28 m 416 Thermal stability Applicable Heat exposure temperature: 200 C. Variation of capacitance: 5 % max. Increase of attenuation: 5 % max. Variation of impedance: 3 % max. Shrinkage: 1,5 mm max. Third specimen length (C,): 28 m Mandrel diameter: 120 mm 501 Dynamic cut-through Not applicable 502
28、 Notch propagation Applicable Cut depth: 0,05 mm 503 Scrape abrasion Applicable External sheath 10 000 cycles Load: 9 N 504 Torsion Not applicable 505 Tensile test on conductors and strands Applicable Elongation 10 % Tensile strength: 90 daN. 506 Plating continuity Applicable 507 Adherence of platin
29、g Applicable prEN 4604-007:20058 508 Plating thickness Applicable 1 m 509 Solderability Not applicable 510 Tensile strength and elongation of extruded insulation, sheath and jacket material Not applicable 511 Cable-to-cable abrasion Not applicable 512 Flexure endurance Applicable Load: 1,5 daN Mandr
30、el diameter: 120 mm. 500 cycles 513 Deformation resistance (Installation with plastic cable ties) Applicable 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 circuit test Not appl
31、icable continued Table 4 (concluded) EN 3475- Designation of the test Remarks 701 Strippability and adherence of insulation to the conductor Applicable 7 N to 35 N 702 Screen pushback capability Applicable 703 Permanence of manufacturers marking Applicable Except when marking on tape between shield
32、and jacket 704 Flexibility The force to crush the loop by 25 % shall be 15 N maximum. 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 Capacitance variation Not applicable 804
33、 Velocity of propagation Applicable see 4.3. 805 Characteristics impedance Applicable se 4.3. 806 Attenuation Applicable See 4.3, Table 3. 807 Transfer impedance Applicable see 4.3. 808 Cross-talk Not applicable prEN 4604-007:20055 Quality assurance See EN 9133. 6 Designation EXAMPLE Description blo
34、ck CABLE, COAXIAL Identity block EN4604-007WN Number of this standard Cable code (see TR 6058, Table 28) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 7 Identification and marking See EN 4604-002. 8 Packaging, labelling and delivery lengths 8.1 Packaging and labelling See EN 4604-001. 8.2 Delivery lengths Delivery on cable drum (about 175 m). Minimum length of each piece: 50 m. 9 Technical specification See EN 4604-001. 9
