1、ASD STANDARD NORME ASD ASD NORM prEN 3375-001 Edition P 1 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 Descriptors: ENGLISH VERSION Ae
2、rospace series Cable, electrical, for digital data transmission Part 001: Technical specification Srie arospatiale Cbles lectriques pour transmission de donnes numriques Partie 001 : Spcification technique Luft- und Raumfahrt Elektrische Leitungen fr Digitaldatenbertragungen Teil 001: Technische Lie
3、ferbedingungen 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 needs of the European Aerospace Industry. It has been technically approved by the experts of the con
4、cerned 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 functionally, without re-identification of the standard. After examination and review by users and f
5、ormal 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 implement the EN at national level by giving the EN the statu
6、s 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 of publication to ASD-STAN Electrical Domain Copyright 2005 by ASD-STAN prEN 3375-001:20052 Foreword T
7、his 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 Manual, this standard has received approval for Publication. Contents Page 1 Scope 3 2 Nor
8、mative references 3 3 Terms and definitions .3 4 Materials and construction of cables 3 4.1 General3 4.2 Materials .4 4.3 Construction of cables4 4.3.1 General4 4.3.2 Cabled cores 4 4.3.3 Screened cables.4 4.3.4 Outer jacket 5 4.4 Colours of components and jacket5 5 Required characteristics.5 6 Test
9、s methods5 7 Quality assurance9 7.1 Qualification .9 7.1.1 General requirements9 7.1.2 Qualification conditions. 10 7.1.3 Qualification tests. 10 7.2 Acceptance test 10 7.2.1 Required conditions . 10 7.2.2 Production routine tests 10 7.2.3 Tests prior to delivery 10 7.2.4 Periodic tests 11 8 Identif
10、ication and marking . 11 8.1 Marking 11 8.2 Colours 11 8.3 Identification 11 9 Packaging, labelling and delivery lengths . 12 9.1 Packaging and labelling. 12 9.2 Delivery lengths 12 prEN 3375-001:20053 1 Scope This standard specifies the required characteristics, test methods, qualification and acce
11、ptance conditions of signal data transmission electrical cables. 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 edition of the referenced docume
12、nt (including any amendments) applies. ISO 2574, Aircraft Electrical cables Identification marking. ISO 8815, Aircraft Electrical cables and cable harnesses Vocabulary. EN 2083, Aerospace series Copper or copper alloy conductors for electrical cables Product standard. EN 2084, Aerospace series Cable
13、s, electric, single-core, general purpose, with conductors in copper or copper alloy Technical specification. 1)EN 2235, Aerospace series Single and multicore electrical cables, screened and jacketed Technical specification. 1)EN 3475-100*, Aerospace series Cables, electrical, aircraft use Test meth
14、ods Part 100: General. EN 3838, Aerospace series Requirements and tests on user-applied markings on aircraft electrical cables. 1)EN 4434, Aerospace series Copper or copper alloy lightweight conductors for electrical cables Product standard (Normal and tight tolerances). 1)EN 9133, Aerospace series
15、Quality management systems Qualification Procedure for aerospace standard parts. 3 Terms and definitions For the purposes of this document, 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 th
16、e cable shall conform to the characteristics below, as well as the values specified in the product standards. The individual cores shall conform to EN 2083 or EN 4434, EN 2084 and the product standards. * And all parts of this series quoted in Table 1. 1) Published as AECMA Prestandard at the date o
17、f publication of this standard. prEN 3375-001:20054 4.2 Materials The materials shall conform to the product standard. The surface of conductive materials used shall be free from corrosion and other contamination. Insulation and others materials shall have no corrosive effect upon the conductors and
18、 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 conductors 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
19、 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 required characteristics. The core shall not be spliced. Where filler cores are used, this shall be specified in the product sta
20、ndard. 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 protection level, the screening may be composed of: one or several spiral layers; one or several braids made using strands or stri
21、ps; one or several metallic or other strips; one or several layers of extruded c onductive or non-conductive materials; a combination of the above. The screening may be individual and/or overall. The individual strands or strips used for the screen shall be free from kinks, loops or breaks. Except w
22、hen 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 spiral screening is used, the first lay direction shall be contrary to that of the cabled cores. 4.3.3.2 Joints Splices of the in
23、dividual strands or strips may be effected by brazing, soldering or folding in. There shall be no more than one splice per 3 m cable length (measured between different individual strands or strips). prEN 3375-001:20055 4.3.3.3 Braid screen pushback capability In accordance with Table 1, test 6.46. 4
24、.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 cable shall be at least 10, except if a different value is necessary to maintain the required characteristics. 4.3.3.5 Screen covera
25、ge 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 and jacket See product standard. 5 Required characteristics The characteristics of the cables, tested according to the methods de
26、scribed hereafter shall comply with the values given in the product standard. 6 Tests methods See Table 1. prEN 3375-001:20056 Table 1 Tests: methods, application and requirements Tests Each delivery No. Description EN 3475- (and/or particulars) Qualificationa (see 7.1) On all cables(see 7.2.1 and 7
27、.2.2) Prior to delivery(see 7.2.1 and 7.2.3) PeriodicEvery three years(see 7.2.4) Requirements (and/or particulars) 6 General 100 X X X X 6.1 Visual examination b201 3 X Cable construction as described in 4. Marking: See 8. 6.2 Mass 202 3 X Product standard 6.3 Dimensions (all) b203 3 Product standa
28、rd outer diameter X 6.4 Ohmic resistance per unit length 301 3 X EN 2083 or Product standard 6.5 Voltage proof test: 302 immersion test dry test dry impulse test dielectric strength of cores Alternative to dry test 3 X X X Product standard 6.6 Insulation resistance 303 3 dry test immersion test X X
29、Product standard 6.7 Surface resistance b304 3 X For component:1 250 M.mm 6.8 Overload resistance 305 Not applicable 6.9 Continuity of conductors 306 1 X 6.10 Corona extinction voltage 307 1 X If applicable: see Product standard 6.11 Accelerated ageing 401 Mandrel diameter, test load and temperature
30、: Product standard 3 X 6.12 Shrinkage and delamination 402 Temperature: Product standard 3 X Product standard 6.13 Delamination and blocking 401 Mandrel diameter and temperature: Product standard 3 X 6.14 Thermal shock 404 Product standard 3 X Product standard continued prEN 3375-001:20057 Table 1 T
31、ests: methods, application and requirements (continued) Tests Each delivery No. Description EN 3475- (and/or particulars) Qualificationa (see 7.1) On all cables(see 7.2.1 and 7.2.2) Prior to delivery(see 7.2.1 and 7.2.3) PeriodicEvery three years(see 7.2.4) Requirements (and/or particulars) 6.15 Ben
32、ding at ambiant temperature 405 Mandrel diameter and load: Product standard 3 X 6.16 Cold bend test 406 Mandrel diameter and load: Product standard 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 en
33、durance 410 Not applicable 6.21 Resistance to fluids c411 1 per fluid X c6.22 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 standar
34、d6.26 Thermal stability 416 3 X If applicable: see Product 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 X Product standard 6.30 Notch propagation 502 Cut depth: Product standa
35、rd 3 X 6.31 Scrape abrasion 503 Load: Product standard 3 X Requirements to be considered at 20 C unless otherwise specified 6.32 Torsion 504 Not applicable continued prEN 3375-001:20058 Table 1 Tests: methods, application and requirements (continued) Tests Each delivery . Description EN 3475- (and/o
36、r particulars) Qualificationa (see 7.1) On all cables(see 7.2.1 and 7.2.2) Prior to delivery(see 7.2.1 and 7.2.3) PeriodicEvery three years(see 7.2.4) Requirements (and/or particulars) 6.33 Tensile test on conductors and strands d505 3 X 6.34 Plating continuity b506 3 X 6.35 Adherence of plating b50
37、7 3 X 6.36 Plating thickness b508 3 X Product standard 6.37 Solderability b509 3 X Product standard6.38 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
38、 Deformation resistance 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 c6.44 Toxicity 602 Applicable c6.45 Resistance to wet arc tracking 603 Not applicable 6.46 Resistance to dry arc propagation
39、604 Not applicable 6.47 Wet short circuit test 605 Not applicable 6.48 Strippability and adherence of insulation to the conductor b701 3 X For component: Product standard 6.49 Screen pushback capability 702 3 X 6.50 Permanence of manufacturers marking 703 3 X 6.51 Flexibility 704 Not applicable cont
40、inued prEN 3375-001:20059 Table 1 Tests: methods, application and requirements (concluded) Tests Each delivery No. Description EN 3475- (and/or particulars) Qualificationa (see 7.1) On all cables(see 7.2.1 and 7.2.2) Prior to delivery(see 7.2.1 and 7.2.3) PeriodicEvery three years(see 7.2.4) Require
41、ments (and/or particulars) 6.52 Permanence of user-applied marking EN 3838 X X Product standard Contrast measurement 705 Laser parameters: 706 X Product standard 6.53 Capacitance per unit length 801 3 X Product standard 6.54 Capacitance unbalance 802 3 X Product standard 6.55 Capacitance variation 8
42、03 3 X If applicable: see Product standard 6.56 Velocity of propagation 804 3 X If applicable: see Product standard 6.57 Characteristic impedance 805 3 X Product standard 6.58 Attenuation 806 3 X Product standard 6.59 Transfer impedance 807 1 X Product standard 6.60 Cross-talk 808 1 X If applicable:
43、 see Product standard 6.61 Resistance unbalance (DC) 809 1 X Product standard 6.62 Structural return loss 810 1 X Product standard 6.63 Unbalance attenuation 811 1 X Product standard aNumber of specimens per cross-section for each test unless otherwise specified. bCarried out on component and cable.
44、 cFor a series containing several cable sizes, tests required on one size only. dCarried out on component only. 7 Quality assurance 7.1 Qualification 7.1.1 General requirements See EN 9133. prEN 3375-001:200510 7.1.2 Qualification conditions The cables shall be submitted for qualification tests on d
45、rums, 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. 7.2 Acceptance test 7.2.1 Required conditions 7.2.1.1 General See Table 1. The acceptance tests shall be
46、 carried out on cables delivered 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 on
47、e the tests specified in 7.2.3, that test shall be repeated on another set of specimens selected at random from the same batch. If one of these new specimens fails the test, the batch submitted for acceptance shall be rejected. 7.2.2 Production routine tests The tests shall be carried out on all cab
48、les delivered. See Table 1. 7.2.3 Tests prior to delivery They shall be carried out by sampling on each delivery batch. See Table 1. prEN 3375-001:20057.2.4 Periodic tests They shall be carried out by sampling at least every three years. See Table 1. 8 Identification and marking 8.1 Marking Unless o
49、therwise specified, the marking shall comprise the cable reference appearing in the product standard, the country and manufacturer codes and the last two figures of the year of manufacture in conformity with ISO 2574. It is applied to the outer sheath. The marking may be done wholly or partially in code form by agreement with the user. 8.2 Colours The colour of the marking is given by the cable designation. Except otherwise specified in the product standard, when no designation
