1、BS EN 3375-007:2016Aerospace series Cable, electrical, for digital datatransmission Part 007: Double braid 77 Ohms Type WW Product standardBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 3375-007:2016 BRITISH STANDARDNational forewordThis British Standard is th
2、e UK implementation of EN 3375-007:2016. It supersedes BS EN 3375-007:2006 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology.A list of organizations represented on this committee can be obtai
3、ned on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 92605 1 ICS 49.090; 49.060 Complia
4、nce with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2016.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 3375-007:2016EUROPEAN STANDARD NO
5、RME EUROPENNE EUROPISCHE NORM EN 3375-007 September 2016 ICS 49.060; 49.090 Supersedes EN 3375-007:2006English Version Aerospace series - Cable, electrical, for digital data transmission - Part 007: Double braid - 77 Ohms - Type WW - Product standard Srie arospatiale - Cbles lectriques pour transmis
6、sion de donnes numriques - Partie 007 : Double tresse - 77 ohms - Type WW - Norme de produit Luft- und Raumfahrt - Elektrische Leitungen fr Digitaldatenbertragungen - Teil 007: Doppelt geschirmt - 77 Ohm - Type WW - Produktnorm This European Standard was approved by CEN on 4 April 2016. CEN members
7、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 references concerning such national standards may be obtained on application t
8、o the CEN-CENELEC 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 into its own language and notified to the CEN-CENELEC Management
9、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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lith
10、uania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-
11、1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3375-007:2016 EBS EN 3375-007:2016EN 3375-007:2016 (E) 2 Contents Page European foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Required
12、 characteristics 5 5 Tests . 6 6 Quality assurance 9 7 Identification and marking (according to EN 3375-002 and TR 6058) . 9 8 Packaging . 10 9 Technical specification . 10 BS EN 3375-007:2016EN 3375-007:2016 (E) 3 European foreword This document (EN 3375-007:2016) has been prepared by the Aerospace
13、 and 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
14、its 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 March 2017, and conflicting national standards shall be withdrawn at the latest by March 2017. Attention is drawn to the po
15、ssibility 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. This document supersedes EN 3375-007:2006. According to the CEN-CENELEC Internal Regulations, the national standar
16、ds organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxe
17、mbourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 3375-007:2016EN 3375-007:2016 (E) 4 1 Scope This European Standard specifies the required characteristics of double braid, 77 ohms, size 26 electrical c
18、able type WW, intended for digital data transmissions. Main electrical characteristics are given in 4.3. It shall be used together with EN 3375-001 and EN 3375-002. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable
19、for its application. 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 alloy conductors for electrical cables Product standard EN 2084, Aerospace s
20、eries Cables, electrical, general purpose, with conductors in copper or copper alloy Technical specification EN 2235, Aerospace series Single and multicore electrical cables, screened and jacketed Technical specification EN 3375-001, Aerospace series Cable, electrical, for digital data transmission
21、Part 001: Technical specificationEN 3375-002, Aerospace series Cable, electrical, for digital data transmission Part 002: General EN 3475-100*, Aerospace series Cables, electrical, aircraft use Test methods Part 100: General EN 9133, Aerospace series Quality management systems Qualification procedur
22、e for aerospace standard parts TR 6058, Aerospace series Cable code and identification list 1)3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3475-100 apply. *And all parts quoted in this European Standard. 1)Published as ASD-STAN Technical Report at
23、the date of publication of this European Standard. http:/www.asd-stan.org/ BS EN 3375-007:2016EN 3375-007:2016 (E) 5 4 Required characteristics 4.1 Dimensions and mass See Figure 1 and Table 1. Key Two cores size 26, according to EN 2083 C001 (AWG 26) Insulation of elements: Fluorocarbon (colour: se
24、e 7.5) Two fillers Braid screen, silver plated copper (strand = 0,08 mm) Braid screen, silver plated copper (strand = 0,08 mm) Outer sheath fluorocarbon (colour: see 7.5) Figure 1 Table 1 Core (ASD EN 2083) Insulation Braid screen Outer sheath Mass Composition diameter diameter diameter diameter min
25、. max. max. min. max. min. max. max. N mm mm mm mm mm g/m 19 0,10 0,45 0,53 0,85 2,00 2,40 2,80 3,00 21 BS EN 3375-007:2016EN 3375-007:2016 (E) 6 4.2 General characteristics (according to EN 2235 and EN 3475-100) Operating temperature . : 65 C to 200 C Bend radius recommended minimum bend radius : R
26、 = 20 mm Twisting pitch ranging between 8 and 16 times the external diameter of the dual-conductor assembly. 4.3 Electrical characteristics Impedance . : (77 7) at 1 MHz Capacitance : 75 pF/m max. Attenuation maximum : 4,1 dB/100 m at 1 MHz For information: maximum voltage rating 250 V AC Transfer i
27、mpedance (Zt/m/m): direct current : 30 1 MHz . : 15 10 MHz . : 15 30 MHz . : 15 100 MHz : N.A. 5 Tests According to EN 3375-001 and EN 3475-100. See Table 2. Table 2 EN 3475- Designation of the test Carried out on Component aCable 201 Visual examination Applicable Applicable 202 Mass Not applicable
28、Applicable see Table 1. 203 Dimensions Applicable Applicable see Table 1. 301 Ohmic resistance per unit length Not applicable Applicable 153 /km maximum 302 Voltage proof test Not applicable Applicable Elements: 1 500 V AC Jacket: Dry: 1 000 V AC Immersion: 500 V AC 303 Insulation resistance Not app
29、licable Applicable 1 500 M km at 20 C BS EN 3375-007:2016EN 3375-007:2016 (E) 7 EN 3475- Designation of the test Carried out on Component aCable 304 Surface resistance Applicable Applicable 1 250 M.mm 305 Overload resistance Not applicable Not applicable 306 Continuity of conductors Applicable Appli
30、cable 307 Corona extinction voltage Not applicable Not applicable 401 Accelerated ageing Not applicable Applicable T = operating Temperature 230 C 168 h Mandrel 50 mm Load = 0,25 daN 402 Shrinkage and delamination Applicable T C = 200 C 0,8 mm max. Applicable T C = 200 C 2 mm max. 403 Delamination a
31、nd blocking Not applicable Applicable T C = 200 C Mandrel 50 mm 404 Thermal shock Applicable T C = 200 C 0,8 mm max. Applicable T C = 200 C 2 mm max. 405 Bending at ambient temperature Not applicable Applicable Load = 1 daN Mandrel 50 mm 406 Cold bend test Not applicable Applicable Load = 1 daN Mand
32、rel 50 mm 407 Flammability Not applicable Applicable Load = 1 daN 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 fluids Not applicable Applicable 412 Humidity resistance Not
33、 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 applicable Not applicable 417 Fire resistance of cables c
34、onfined inside a harness Not applicable Not applicable BS EN 3375-007:2016EN 3375-007:2016 (E) 8 EN 3475- Designation of the test Carried out on Component aCable 418 Thermal endurance for conductors Not applicable Not applicable 501 Dynamic cut-through Not applicable Applicable at 23 C: 1 daN at ope
35、rating temperature: 0,5 daN 502 Notch propagation Not applicable Applicable 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 Appl
36、icable Applicable 507 Adherence of plating Applicable Applicable 508 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 applicab
37、le Not applicable 511 Cable-to-cable abrasion Not applicable Not applicable 512 Flexure endurance Not applicable Not applicable 513 Deformation resistance (Installation with plastic cable ties) Not applicable Not applicable 514 Porosity of copper cladding on aluminium strands Not applicable Not appl
38、icable 601 Smoke density Applicable Applicable 602 Toxicity 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 applicable 701 Strippability and adhere
39、nce 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 BS EN 3375-007:2016EN 3375-007:2016 (E) 9 EN 3475- Designation of the test Carried out on Component aCable 704
40、Flexibility Not applicable Not applicable 705 Contrast measurement Not applicable Not applicable 706 Laser markability Not applicable Not applicable 801 Capacitance per unit length Not applicable Mutual capacitance See 4.3. 802 Capacitance unbalance Not applicable Applicable 5 % 803 Capacitance vari
41、ation Not applicable Not applicable 804 Velocity of propagation Not applicable 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-
42、talk Not applicable Not applicable 809 Resistance unbalance (DC) Not applicable 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. 7 Identification and marking
43、(according to EN 3375-002 and TR 6058) 7.1 Designation EXAMPLE Description block CABLE, ELECTRICAL Identity block EN3375-007C01 Reference of this standard Nature of braid (C: silver plated copper) Jacket marking code (see Table 3) BS EN 3375-007:2016EN 3375-007:2016 (E) 10 7.2 Short designation See
44、Table 3. Table 3 Braid code Jacket code Short designation C None WW 26 C 01 WW R 26 C 02 WW B 26 7.3 Marking EXAMPLE EN WW R 26 FRF 05 7.4 Colour of the marking on the jacket Code “none“: Green or Black; Code 01: Red (main line); Code 02: Blue (branch line). 7.5 Colour of components Cores: 1 white +
45、 1 light blue; Jacket: white. 8 Packaging See EN 3375-001. 9 Technical specification See EN 2084. See EN 2235. See EN 3375-001. This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI
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