ASD-STAN PREN 3375-001-2016 Aerospace series Cable electrical for digital data transmission Part 001 Technical specification (Edition P 2).pdf

1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 3375-001 Edition P 2 July 2016 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.org ICS: 49.060 Supersedes ed

2、ition P 1 of October 2005 and will supersede EN 3375-001:2007 Descriptors: ENGLISH VERSION Aerospace series Cable, electrical, for digital data transmission Part 001: Technical specification Luft- und Raumfahrt Elektrische Leitungen fr Digitaldatenbertragungen Teil 001: Technische Lieferbedingungen

3、Srie arospatiale Cbles lectriques pour transmission de donnes numriques Partie 001 : Spcification technique 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 t

4、he 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 Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically o

5、r functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, the ASD-STAN prEN will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full Europe

6、an Standard (EN). 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. ASD-STAN Technical Committee approves that: “This document is published by ASD-STAN for the

7、 needs of the European Aerospace Industry. The use of this standard is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-STAN reviews each standard and technical report a

8、t least every five years at which time it may be revised, reaffirmed, stabilized or cancelled. ASD-STAN invites you to send your written comments or any suggestions that may arise. All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system or transmitted, in an

9、y form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of ASD-STAN. Order details: E-mail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1st July 2016 Comments should be sent within six months

10、after the date of publication to ASD-STAN Electrical Domain Copyright 2016 ASD-STAN prEN 3375-001:2016 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Terms and definitions . 3 4 Materials and construction of cables . 3 5 Required characteristics 5 6 Tests methods 5 7 Quality ass

11、urance 10 8 Identification and marking 11 9 Packaging, labelling and delivery lengths 12 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

12、 Process Manual, this standard has received approval for Publication. prEN 3375-001:2016 (E) 3 1 Scope This standard specifies the required characteristics, test methods, qualification and acceptance conditions of signal data transmission electrical cables. 2 Normative references The following docum

13、ents, in whole or in part, are normatively referenced in this document and are indispensable 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

14、Copper and copper alloys conductors for electrical cables Product standard EN 2084, Aerospace series 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 Technica

15、l specification EN 3475-100*, Aerospace series Cables, electrical, aircraft use Test methods Part 100: General EN 3838, Aerospace series Requirements and tests on user-applied markings on aircraft electrical cables EN 4434, Aerospace series Copper or copper alloy lightweight conductors for electrica

16、l cables Product standard (Normal and tight tolerances) EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts ISO 2574, Aircraft Electrical cables Identification marking ISO 8815, Aircraft Electrical cables and cable harnesses Vocabulary 3 Terms an

17、d definitions For the purposes of this standard, the terms and definitions given in ISO 8815 and EN 3475-100 apply. 4 Materials and construction of cables 4.1 General The composition, dimensions and mass of the cable shall conform to the characteristics below, as well as the values specified in the

18、product standards. The individual cores shall conform to EN 2083 or EN 4434, EN 2084 and the product standards. * And all parts quoted in this standard. prEN 3375-001:2016 (E) 4 4.2 Materials The materials shall conform to the product standard. The surface of conductive materials used shall be free

19、from corrosion and other contamination. Insulation and others materials shall have no corrosive effect upon the conductors and screens and shall not be susceptible to attack by mould and other micro-organisms. 4.3 Construction of cables 4.3.1 General The permissible operating temperature of conducto

20、rs shall not be lower than the maximum operating temperature of the cable as a whole. 4.3.2 Cabled cores The lay length of the outer lay shall not be less than eight times and not more than 16 times the nominal diameter of the cabled cores, except if a different value is necessary to maintain the re

21、quired characteristics. The core shall not be spliced. Where filler cores are used, this shall be specified in the product standard. The assembly may be held together with an overall wrap. 4.3.3 Screened cables 4.3.3.1 General The construction shall conform to the product standard. Depending on prot

22、ection level, the screening may be composed of: one or several spiral layers; one or several braids made using strands or strips; one or several metallic or other strips; one or several layers of extruded conductive or non-conductive materials; a combination of the above. The screening may be indivi

23、dual and/or overall. The individual strands or strips used for the screen shall be free from kinks, loops or breaks. Except when particular materials are used, they shall conform to standard EN 2083 or EN 4434 or shall satisfy the mechanical tests in EN 3475-505 to EN 3475-508 before use. Where spir

24、al screening is used, the first lay direction shall be contrary to that of the cabled cores. prEN 3375-001:2016 (E) 5 4.3.3.2 Joints Splices of the individual strands or strips may be affected by brazing, soldering or folding in. There shall be no more than one splice per 3 m cable length (measured

25、between different individual strands or strips). 4.3.3.3 Braid screen pushback capability In accordance with Table 1, test 6.49. 4.3.3.4 Angle of spiral screening or braiding The angle of spiral screening or braiding (as shown in Figure 1 of EN 2235), measured against the longitudinal axis of the ca

26、ble shall be at least 10, except if a different value is necessary to maintain the required characteristics. 4.3.3.5 Screen coverage Coverage , if specified, is determined in accordance with EN 2235. 4.3.4 Outer jacket The construction shall conform to the product standard. 4.4 Colours of components

27、 and jacket See product standard. 5 Required characteristics The characteristics of the cables, tested according to the methods described hereafter shall comply with the values given in the product standard. 6 Tests methods See Table 1. prEN 3375-001:2016 (E) 6 Table 1 Tests: methods, application an

28、d requirements (1 of 4) No. Tests Requirements (and/or particulars) Description EN 3475- (and/or particulars) Qualification a(see 7.1)First article inspection(see 7.1.4)Each delivery Periodic Every threeyears (see 7.2.4)Onall cables(see 7.2.1 and7.2.2) Priortodelivery(see 7.2.1 and7.2.3) 6 General 1

29、00 X X X X X 6.1 Visual examination b 201 3 3 X Cable construction as described in Clause 4. Marking: see Clause 8. 6.2 Mass 202 3 3 X Product standard 6.3 Dimensions (all) b 203 3 3 Product standard outer diameter X 6.4 Ohmic resistance per unit length 301 3 3 X EN 2083 or Product standard 6.5 Volt

30、age proof test: 302 immersion test 3 3 Product standard dry test X dry impulse test Alternative to dry test X dielectric strength of cores X 6.6 Insulation resistance 303 3 3 dry test X immersion test X Product standard 6.7 Surface resistance b 304 3 X For component: 1 250 M.mm 6.8 Overload resistan

31、ce 305 Not applicable 6.9 Continuity of conductors 306 1 1 X 6.10 Corona extinction voltage 307 1 1 X If applicable: see product standard. 6.11 Accelerated ageing 401 Mandrel diameter, test load and temperature: Product standard 3 3 X 6.12 Shrinkage and delamination 402 Temperature: Product standard

32、 3 3 X Product standard prEN 3375-001:2016 (E) 7 Table 1 Tests: methods, application and requirements (2 of 4) No. Tests Requirements (and/or particulars) Description EN 3475- (and/or particulars) Qualification a(see 7.1)First article inspection(see 7.1.4)Each delivery Periodic Every threeyears (see

33、 7.2.4)Onall cables(see 7.2.1 and7.2.2) Priortodelivery(see 7.2.1 and7.2.3) 6.13 Delamination and blocking 403 Mandrel diameter and temperature: Product standard 3 3 X 6.14 Thermal shock 404 Product standard 3 3 X Product standard 6.15 Bending at ambient temperature 405 Mandrel diameter and load: Pr

34、oduct standard 3 X 6.16 Cold bend test 406 Mandrel diameter and load: Product standard 3 3 X 6.17 Flammability 407 Load: Product standard 3 X 6.18 Fire resistance 408 Not applicable 6.19 Air-excluded ageing 409 Not applicable 6.20 Thermal endurance 410 Not applicable 6.21 Resistance to fluids c 411

35、1 per fluid X c 6.22 Humidity resistance 412 Not applicable 6.23 Wrap back test 413 Not applicable 6.24 Differential scanning calorimeter (DSC test) 414 Not applicable 6.25 Rapid change of temperature 415 3 X If applicable: see Product standard. 6.26 Thermal stability 416 3 X If applicable: see Prod

36、uct standard. 6.27 Fire resistance of cable inside shielded harness 417 Not applicable 6.28 Thermal endurance for conductors 418 Not applicable 6.29 Dynamic cut-through 501 3 3 X Product standard prEN 3375-001:2016 (E) 8 Table 1 Tests: methods, application and requirements (3 of 4) No. Tests Require

37、ments (and/or particulars) Description EN 3475- (and/or particulars) Qualification a(see 7.1)First article inspection(see 7.1.4)Each delivery Periodic Every threeyears (see 7.2.4)Onall cables(see 7.2.1 and7.2.2) Priortodelivery(see 7.2.1 and7.2.3) 6.30 Notch propagation 502 Cut depth: Product standa

38、rd 3 3 X 6.31 Scrape abrasion 503 Load: Product standard 3 3 X Requirements to be considered at 20 C unless otherwise specified 6.32 Torsion 504 Not applicable 6.33 Tensile test on conductors and strands d 505 3 X 6.34 Plating continuity b 506 3 X 6.35 Adherence of plating b 507 3 X 6.36 Plating thi

39、ckness b 508 3 X Product standard 6.37 Solderability b 509 3 X Product standard 6.38 Tensile strength and elongation of extruded insulation, sheath and jacket material 510 Not applicable 6.39 Cable-to-cable abrasion 511 Not applicable 6.40 Flexure endurance 512 Not applicable 6.41 Deformation resist

40、ance (Installation with plastic cable ties) 513 1 X If applicable: see Product standard. 6.42 Porosity of copper cladding on aluminium strands 514 Not applicable 6.43 Smoke density 601 Applicable c 6.44 Toxicity 602 Applicable c 6.45 Resistance to wet arc tracking 603 Not applicable 6.46 Resistance

41、to dry arc propagation 604 Not applicable 6.47 Wet short circuit test 605 Not applicable prEN 3375-001:2016 (E) 9 Table 1 Tests: methods, application and requirements (4 of 4) No. Tests Requirements (and/or particulars) Description EN 3475- (and/or particulars) Qualification a(see 7.1)First article

42、inspection(see 7.1.4)Each delivery Periodic Every threeyears (see 7.2.4)Onall cables(see 7.2.1 and7.2.2) Priortodelivery(see 7.2.1 and7.2.3) 6.48 Strippability and adherence of insulation to the conductor b 701 3 3 X For component: Product standard 6.49 Screen pushback capability 702 3 X 6.50 Perman

43、ence of manufacturers marking 703 3 3 X 6.51 Flexibility 704 Not applicable 6.52 Permanence of user-applied marking EN 3838 X X X Product standard Contrast measurement 705 Laser markability: 706 X Product standard 6.53 Capacitance per unit length 801 3 3 X Product standard 6.54 Capacitance unbalance

44、 802 3 3 X Product standard 6.55 Capacitance variation 803 3 3 X If applicable: see Product standard. 6.56 Velocity of propagation 804 3 3 X If applicable: see Product standard. 6.57 Characteristic impedance 805 3 3 X Product standard 6.58 Attenuation 806 3 3 X Product standard 6.59 Transfer impedan

45、ce 807 1 1 X Product standard 6.60 Cross-talk 808 1 1 X X If applicable: see Product standard. 6.61 Resistance unbalance (DC) 809 1 1 X Product standard 6.62 Structural return loss 810 1 1 X Product standard 6.63 Unbalance attenuation 811 1 1 X Product standard a Number of specimens per cross-sectio

46、n for each test unless otherwise specified. b Carried out on component and cable. c For a series containing several cable sizes, tests required on one size only. d Carried out on component only. prEN 3375-001:2016 (E) 10 7 Quality assurance 7.1 Qualification 7.1.1 General requirements See EN 9133. 7

47、.1.2 Qualification conditions The cables shall be submitted for qualification tests on drums, spools or in coils in sufficient lengths, wound evenly and uniformly. Each drum, spool or coil shall have a label containing information given in 9.1. 7.1.3 Qualification tests See Table 1. 7.1.4 First arti

48、cle inspection tests The first article inspection tests are to be carried out on all cable designs that were not included in the qualification demonstration. See Table 1. 7.2 Acceptance test 7.2.1 Required conditions 7.2.1.1 General See Table 1. The acceptance tests shall be carried out on cables de

49、livered against an order to check that the cable characteristics are maintained. 7.2.1.2 Tests to be carried out on all cables The cables which fail any of the tests specified in 7.2.2 shall be rejected. 7.2.1.3 Random sampling tests: retest If any of the specimens fails one the tests specified in 7.2.3, that test shall be repeated on another set of specimens selected