1、ASD STANDARD NORME ASD ASD NORM prEN 3375-004 Edition P 1 July 2006 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Gulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: Descriptors: ENGLISH VERSION Aerospace se
2、ries Cable, electrical, for digital data transmission Part 004: Double braid 77 Ohms Type WJ Product standard Srie arospatiale Cbles lectriques pour transmission de donnes numriques Partie 004 : Double tresse 77 Ohms Type WJ Norme de produit Luft- und Raumfahrt Elektrische Leitungen fr Digitaldatenb
3、ertragungen Teil 004: Doppelt geschirmt 77 Ohms Type WJ 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 European Aerospace Indus
4、try. 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, without re-identificatio
5、n 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 national members have then to
6、 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 July 2006 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domai
7、n Copyright 2006 by ASD-STAN prEN 3375-004:2006 2 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Terms and definitions .3 4 Required characteristics.4 4.1 Dimensions and mass.4 4.2 General characteristics (according to EN 2235 and EN 3475-100).5 4.3 Electrical characteristics 5 5 Tests
8、5 6 Quality assurance8 7 Identification and marking (according to EN 3375-002 and TR 6058) 9 7.1 Designation 9 7.2 Short designation 9 7.3 Marking .9 7.4 Colour of the marking on the jacket 9 7.5 Colour of components 9 8 Packaging 10 9 Technical specification 10 Foreword This standard was reviewed b
9、y 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 Manual, this standard has received approval for Publication. prEN 3375-004:2006 3 1 Scope This standard specifies the
10、 required characteristics of double braid, 77 Ohms, size 24 electrical cable type WJ, intended for digital data transmissions. General characteristics are given in 4.2. Main electrical characteristics are given in 4.3. It shall be used together with EN 3375-001 and EN 3375-002. 2 Normative reference
11、s 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 edition of the referenced document (including any amendments) applies. EN 2083, Aerospace series Copper or copper allo
12、y conductors for electrical cables Product standard. EN 2084, Aerospace series Cables, electric, single-core, general purpose, with conductors in copper or copper alloy Technical specification. EN 2235, Aerospace series Single and multicore electrical cables, screened and jacketed Technical specific
13、ation. EN 3375-001, Aerospace series Cable, electrical, for digital data transmission Part 001: Technical specification. 1)EN 3375-002, Aerospace series Cable, electrical, for digital data transmission Part 002: General. 1)EN 3475-100*, Aerospace series Cables, electrical, aircraft use Test methods
14、Part 100: General. EN 9133, Aerospace series Quality management systems Qualification Procedure for aerospace standard parts.TR 6058, Aerospace series Cable code identification list. 2)3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3475-100 apply. *A
15、ll parts quoted in Table 2. 1) Published as ASD Prestandard at the date of publication of this standard. 2) Published as ASD Technical Report at the date of publication of this standard. prEN 3375-004:2006 4 4 Required characteristics 4.1 Dimensions and mass See Figure 1 and Table 1. ENWJ24xxx051234
16、56Optional tapeKey c Two conductors size 24, according to EN 2083 C002 (AWG 24). d Insulation of elements: Fluorocarbon (colour: see 7.5) e Two fillers f Braid screen, tin (B) or silver (C) plated copper (strand = 0,10 mm) g Braid screen, tin (B) or silver (C) plated copper (strand = 0,10 mm) h Oute
17、r sheath: Fluorocarbon (colour: see 7.5) Figure 1 Table 1 Braid screen Core (EN 2083) Insulation f g Outer sheath Mass diameter diameter diameter diameter Composition min. max. max. max. min. max. max. N mm mm mm mm mm g/m 19 0,12 0,55 0,62 1,30 3,00 3,50 3,40 3,90 37 Optional tape prEN 3375-004:200
18、6 5 4.2 General characteristics (according to EN 2235 and EN 3475-100) Operating temperature: Silver plated copper braid : 65 C to 200 C Tin plated copper braid : 65 C to 150 C Minimum bend radius : R = 26 mm UV laser markable Twisting pitch ranging between 8 and 16 times the external diameter of th
19、e dual-conductor assembly. 4.3 Electrical characteristics Impedance . : (77 7) at 1 MHz Capacitance (70 pF/m nominal) : 78 pF/m max. Attenuation maximum . : 3,6 dB/100 m at 1 MHz For information: maximum voltage rating 600 V AC Transfer impedance (Zt maximum in m/m): direct current : 15 1 MHz : 5 10
20、 MHz . : 5 30 MHz . : 10 100 MHz . : N.A. 5 Tests According to EN 3375-001 and EN 3475-100. See Table 2. prEN 3375-004:20066 Table 2 Carried out on EN 3475- Designation of the test Component aCable 201 Visual examination Applicable Applicable 202 Mass Not applicable Applicable see Table 1. 203 Dimen
21、sions Applicable Applicable see Table 1. 301 Ohmic resistance per unit length Not applicable Applicable 109 /km maximum 302 Voltage proof test Not applicable Applicable Elements: 1,5 kV AC Jacket: Dry: 1,0 kV AC or Dry impulse: 1,5 kV AC or Immersion: 500 V AC 303 Insulation resistance Not applicabl
22、e Applicable 1 500 M km at 20 C 304 Surface resistance Applicable Applicable 1 250 M.mm 305 Overload resistance Not applicable Not applicable 306 Continuity of conductors Applicable Applicable 307 Corona extinction voltage Not applicable Not applicable 401 Accelerated ageing Not applicable Applicabl
23、e T = maximum operating temperature 30 C - 168 h Mandrel 50 mm Load = 0,7 daN 402 Shrinkage and delamination Applicable T C = 200 C 0,8 mm max. Applicable At maximum operating temperature 2 mm max. 403 Delamination and blocking Not applicable Applicable T C = 200 C Mandrel 50 mm 404 Thermal shock Ap
24、plicable T C = 200 C 0,8 mm max. Applicable At maximum operating temperature 2 mm max. 405 Bending at ambient temperature Not applicable Applicable Load = 0,7 daN Mandrel 50 mm 406 Cold bend test Not applicable Applicable Load = 0,7 daN Mandrel 50 mm 407 Flammability Not applicable Applicable Load =
25、 0,7 daN continued prEN 3375-004:20067 Table 2 (continued) Carried out on EN 3475- Designation of the test Component aCable 408 Fire resistance Not applicable Not applicable 409 Air-excluded ageing Not applicable Not applicable 410 Thermal endurance Not applicable Not applicable 411 Resistance to fl
26、uids Not applicable Applicable 412 Humidity resistance Not applicable Not applicable 413 Wrap back test Not applicable Not applicable 414 Differential scanning calorimeter (DSC test) Not applicable Not applicable 415 Rapid change of temperature Not applicable Not applicable 416 Thermal stability Not
27、 applicable Not applicable 417 Fire resistance inside harness Not applicable Not applicable 418 Conductor thermal endurance Not applicable Not applicable 501 Dynamic cut-through Not applicable Applicable at 23 C: 1 daN at maximum operating temperature: 0,5 daN 502 Notch propagation Not applicable Ap
28、plicable Notch = 0,05 mm Mandrel 50 mm 503 Scrape abrasion Not applicable Applicable F = 1 daN 504 Torsion Not applicable Not applicable 505 Tensile test on conductors and strands Applicable Not applicable 506 Plating continuity Applicable Applicable 507 Adherence of plating Applicable Applicable 50
29、8 Plating thickness Applicable Applicable 509 Solderability Applicable Maximum wetting time 5 s Applicable Maximum wetting time 5 s 510 Tensile strength and elongation of extruded insulation, sheath and jacket material Not applicable Not applicable 511 Cable-to-cable abrasion Not applicable Not appl
30、icable 512 Flexure endurance Not applicable Not applicable 513 Deformation resistance (Installation with plastic cable ties) Not applicable Not applicable 514 Porosity of copper cladding Not applicable Not applicable 601 Smoke density Not applicable Applicable continued prEN 3375-004:20068 Table 2 (
31、concluded) Carried out on EN 3475- Designation of the test Component a Cable 602 Toxicity Not applicable Applicable 603 Resistance to wet arc tracking Not applicable Not applicable 604 Resistance to dry arc propagation Not applicable Not applicable 605 Wet short circuit test Not applicable Not appli
32、cable 701 Strippability and adherence of insulation to the conductor Applicable 0,25 daN Applicable 702 Screen pushback capability Not applicable Applicable 703 Permanence of manufacturers marking Not applicable Applicable 704 Flexibility Not applicable Not applicable 705 Contrast measurement Not ap
33、plicable Applicable K 50 % 706 Laser markability Not applicable Applicable 801 Capacitance per unit length Not applicable Mutual capacitance See 4.3. 802 Capacitance unbalance Not applicable Applicable 5 % 803 Capacitance variation Not applicable Not applicable 804 Velocity of propagation Not applic
34、able Not applicable 805 Characteristic impedance Not applicable Applicable Differential impedance See 4.3. 806 Attenuation Not applicable Applicable See 4.3. 807 Transfer impedance Not applicable Applicable See 4.3. 808 Cross-talk Not applicable Not applicable 809 Resistance unbalance (DC) Not appli
35、cable Not applicable 810 Structural return loss Not applicable Not applicable 811 Unbalance attenuation Not applicable Not applicable aSamples from finished cable. 6 Quality assurance See EN 9133. prEN 3375-004:2006 9 7 Identification and marking (according to EN 3375-002 and TR 6058) 7.1 Designatio
36、n EXAMPLE Description block ELECTRICAL CABLE Identity block EN3375-004C01 Reference of this standard Nature of braid (B: tin plated copper or C: silver plated copper) Jacket marking code (see Table 3) 7.2 Short designation See Table 3. Table 3 Braid code Jacket code Short designation B None WJB 24 B
37、 01 WJB R 24 B 02 WJB B 24 C None WJ 24 C 01 WJ R 24 C 02 WJ B 24 7.3 Marking EXAMPLES for EN3375-004 C the marking is EN WJ 24 FRA 05 for EN3375-004 B 01 the marking is EN WJB R 24 FRF 05 7.4 Colour of the marking on the jacket Code “none“: Green; Code 01: Red (main line); Code 02: Blue (branch line). 7.5 Colour of components Cores: 1 white + 1 light blue; Jacket: white. prEN 3375-004:200610 8 Packaging See EN 3375-001. 9 Technical specification See EN 2084. See EN 2235. See EN 3375-001.
