1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4612-008 Edition P 2 March 2018 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: Supersedes edition
2、P 1 of March 2005 and will supersede EN 4612-008:2011 Descriptors: ENGLISH VERSION Aerospace series Cables, electrical, for general purpose, single and multicore assembly XLETFE Family Jacketed or screened and jacketed Part 008: Silver plated copper Operating temperatures, between - 65 C and 150 C S
3、ingle extruded wall for open applications, with jacket and screen (braid) UV laser printable Product standard Luft- und Raumfahrt Ein- und mehradrige elektrische Leitungen fr allgemeine Verwendung XLETFE Familie mit Mantel oder geschirmt und Mantel Teil 008: Kupfer versilbert Betriebstemperaturen zw
4、ischen - 65 C und 150 C Einfach extrudierte Isolierung fr externe Verwendung, mit Mantel und Schirm (Geflecht) UV-Laser bedruckbar Produktnorm Srie arospatiale Cbles, lectriques, dusage gnral, mono et multiconducteurs Famille XLETFE Gains ou blinds et gains Partie 008 : Cuivre argent Tempratures de
5、fonctionnement comprises entre - 65 C et 150 C Fil simple isol pour applications externes, gain et blind (tress) Marquable au laser UV Norme de produit This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Euro
6、pe - Standardization). It is published for the 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
7、interchangeability is affected, physically or 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 f
8、ormal 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 status of a national standard and by withdrawing any national standards conflicting with the EN. ASD-STAN Technical Committee approves that: “Th
9、is document is published by ASD-STAN for the 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
10、reviews each standard and technical report at 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
11、 in a retrieval system or transmitted, in any 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 March 20
12、18 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2018 ASD-STAN prEN 4612-008:2018 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Terms and definitions . 3 4 Materials and construction . 4 5 Required characteristic
13、s 6 6 Quality assurance 9 7 Designation . 10 8 Identification and marking 10 9 Packaging, labelling and delivery lengths 10 10 Technical specification . 10 Annex A (normative) Formulae for calculating braid details 11 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STA
14、Ns 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 4612-008:2018 (E) 3 1 Scope This standard specifies the characteristics of UV laser printable ja
15、cket, silver plated copper conductor, electrical cables Crosslinked Ethylene Tetra Fluoro Ethylene co-polymer (XLETFE) family for use in the on-board electrical systems of aircraft operating at temperatures between 65 C and 150 C, operating at voltages not exceeding 600 V rms at sea level. This insu
16、lation system has been used in aerospace applications using 115 V (phase-to-neutral) 400 Hz ac and 28 Vdc. Verification of the suitability of cables for use in other electrical systems is the responsibility of the user. These cables are suitable for airframe use without additional protection when th
17、e jacket is present. When the jacket is stripped back the cores may need additional protection. In case of conflict between this standard and other referenced documents the requirements of this standard shall take precedence. 2 Normative references The following documents are referred to in the text
18、 in such a way that some or all of their content constitutes requirements 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 alloy
19、 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 Technical specification EN 3475-
20、100 (all parts), Aerospace series Cables, electrical, aircraft use Test methods Part 100: General EN 4611-002, Aerospace series Cables, electrical, for general purpose, single and multicore assembly XLETFE Family Part 002: General EN 4611-005, Aerospace series Cables, electrical, for general purpose
21、, single and multicore assembly XLETFE Family Part 005: Silver plated copper Operating temperatures, between 65 C and 150 C Single extruded wall for enclosed applications UV laser printable Product standard EN 4612-002, Aerospace series Cables, electrical, for general purpose, single and multicore a
22、ssembly XLETFE Family Jacketed or screened and jacketed Part 002: General EN 9133, Aerospace series Quality Management Systems Qualification Procedure for Aerospace Standard Products 3 Terms, definitions and symbols For the purposes of this document, the terms, definitions and symbols given in EN 34
23、75-100 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp prEN 4612-008:2018 (E) 4 4 Materials and construction 4.1 Mat
24、erials These cables shall consist of the following: cores according to EN 4611-005; number of cores 1 (one) to 4 (four). 2 (two) to 4 (four) cores be twisted together according to EN 2235. Filler cores shall not be permitted. Screen: silver plated copper stranded woven braid, for dimensions of stran
25、ds, see Table 1; material according to EN 2083, tests according to EN 3475-100; construction according to EN 2235.Outer jacket: XLETFE; it shall be possible to mark the jacket by UV laser printing; minimum thickness for 2 (two) cores shall be 0,13 mm; minimum thickness for 3 (three) cores and 4 (fou
26、r) cores shall be 0,15 mm. 4.2 Construction See Table 1. prEN 4612-008:2018 (E) 5 Table 1 Single and multicore screened and jacketed Number of cores Code for nominal section AWG a Linear resistance at 20 C Screen strands nominal diameter External diameter Mass /km mm mm kg/km max. max. max. 1 001 b
27、26 149,0 0,10 1,72 6,54 002 b 24 106,0 1,81 7,40 004 22 60,0 1,98 9,66 006 20 33,2 2,25 13,30 010 18 21,1 0,13 2,49 18,92 012 16 15,3 2,72 21,85 020 14 10,9 3,19 30,18 030 12 6,8 3,64 42,08 2 001 b 26 153,5 0,10 2,54 10,43 002 b 24 109,2 2,72 12,53 004 22 61,8 3,06 16,96 006 20 34,2 3,60 24,09 010 1
28、8 21,7 0,13 4,08 32,34 012 16 15,8 4,54 39,12 020 14 11,2 5,48 55,96 030 12 7,0 6,44 83,55 3 001 b 26 153,5 0,10 2,67 14,16 002 b 24 109,2 2,87 16,92 004 22 61,8 3,23 22,56 006 20 34,2 3,82 32,72 010 18 21,7 0,13 4,33 44,56 012 16 15,8 4,83 54,43 020 14 11,2 5,91 79,79 030 12 7,0 6,88 118,73 4 001 b
29、 26 153,5 0,10 2,88 17,38 002 b 24 109,2 3,10 21,15 004 22 61,8 3,51 28,30 006 20 34,2 4,17 41,54 010 18 21,7 0,13 4,75 56,99 012 16 15,8 5,30 69,99 020 14 11,2 6,50 103,10 030 12 7,0 7,59 154,41 a AWG = Closest American Wire Gauge. b Silver plated copper alloy component conductor. prEN 4612-008:201
30、8 (E) 6 4.3 Colour coding of cores See EN 4612-002. 5 Required characteristics According to EN 2084 and EN 3475-100. See Table 2. Table 2 (1 of 4) EN 3475- Designation of the test Details 201 Visual examination Applicable 202 Mass Applicable; see Table 1. 203 Dimensions Applicable; see Table 1. Lay
31、Factor Less than 3 (three) in accordance with Annex A (normative). Screen coverage EN 2235 Applicable not less than 85 % in accordance with Annex A (normative). 301 Ohmic resistance per unit length Applicable; see Table 1. 302 Voltage proof test Applicable 303 Insulation resistance Applicable (20 2)
32、 C, 500 M.km min. (95 2) C, 1 M.km min. 304 Surface resistance Applicable 12 500 M.mm min. 305 Overload resistance Not applicable 401 Accelerated ageing Applicable Temperature (200 3) C 402 Shrinkage and delamination Applicable Temperature (150 5) C Maximum shrinkage at each end of cable: Jacket: 2
33、mm on size 001 to 010 3 mm on size 012 to 030 Cores: 0,80 mm on size 001 to 006 1,00 mm on size 010 to 012 1,20 mm on size 020 to 030 403 Delamination and blocking Applicable Temperature (150 5) C prEN 4612-008:2018 (E) 7 Table 2 (2 of 4) EN 3475- Designation of the test Details 404 Thermal shock Ap
34、plicable Temperatures ( - 65 3) C and (150 3) C Maximum shrinkage at each end of cable: Jacket: 2 mm on size 001 to 010 3 mm on size 012 to 030 Cores: 0,80 mm on size 001 to 006 1,00 mm on size 010 to 012 1,20 mm on size 020 to 030 405 Bending at ambient temperature Applicable 406 Cold bend test App
35、licable Temperature ( - 65 2) C 407 Flammability Applicable Methods 1 and 2 Flame applied for 15 s Extinguishing time: 3 s max. 408 Fire resistance Not applicable 409 Air excluded ageing Not applicable 410 Thermal endurance Not applicable 411 Resistance to fluids Applicable Volume swell not greater
36、than 10 % Scrape not applicable 413 Wrap back test Applicable 414 Differential scanning calorimeter (DSC test) Not applicable prEN 4612-008:2018 (E) 8 Table 2 (3 of 4) EN 3475- Designation of the test Details 501 Dynamic cut-through Applicable single core Temperature (150 3) C Size code Nominal sect
37、ion mm Cut-through force to screen N 001 0,15 7,5 002 0,25 10 004 0,40 15 006 0,60 010 1,0 012 1,2 020 2 25 030 3 502 Notch propagation Not applicable 503 Scrape abrasion Applicable single core Temperature (150 3) C Minimum number of cycles to screen = 100 Size code Nominal section mm Load N 001 0,1
38、5 1,60 002 0,25 2,5 004 0,40 2,75 006 0,60 3,25 010 1,0 3,50 012 1,2 4,00 020 2 4,50 030 3 4,75 504 Torsion Not applicable 505 Tensile test on conductors and strands Not applicable 506 Plating continuity Not applicable 507 Adherence of plating Not applicable 508 Plating thickness Not applicable prEN
39、 4612-008:2018 (E) 9 Table 2 (4 of 4) EN 3475- Designation of the test Details 509 Solderability Applicable braid only 510 Tensile strength and elongation of extruded insulation, sheath and jacket material Applicable Eb 75 % min. TS 35 MPa min. 511 Cable-to-cable abrasion Applicable Single core 006
40、only Load 1 kg 6 000 000 cycles min. to screen 512 Flexure endurance Not applicable 601 Smoke density Applicable code 006 single core Ds 50, 4 min 602 Toxicity Applicable code 006 single core 603 Resistance to wet arc tracking Not applicable 604 Resistance to dry arc propagation Not applicable 605 W
41、et short circuit test Not applicable 701 Strippability and adherence of insulation to the conductor Applicable 702 Screen pushback capability Applicable 703 Permanence of manufacturers marking Applicable 704 Flexibility Not applicable 705 Contrast measurement Laser marking K 50 % 706 Laser markabili
42、ty Applicable 6 Quality assurance See EN 9133. prEN 4612-008:2018 (E) 10 7 Designation EXAMPLE: Description block Identity block CABLE, ELECTRICAL EN4612-008A010P Number of this standard Code letter for number of cores (See EN 4612-002, Table 2) Code for nominal section (See Table 1) Code letter for
43、 colour coding of cores (See EN 4612-002) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 8 Identification and marking See EN 4612-002. 9 Packaging, labelling and delivery lengths See EN 2235. 10 Technical specification See EN 2235. prEN 4612-0
44、08:2018 (E) 11 Annex A (normative) Formulae for calculating braid details A.1 The filling factor Kf is given by the following formula f = 2 (1+ 2 22 )12 Where : D is the mean diameter braid (i.e. diameter under braid + 2dr); dw is the effective width of one end; dr is the effective radial depth of one end; L is the lay length; m is the total number of spindles; n is the total number of ends per spindle. A.2 Lay factor The lay factor (KL) is given by: KL = (1+ 2 22 ) Where D and L are defined in A.1 above. A.3 Coverage The percentage coverage is given by the formula: 100 (2KL-KL2)
