1、AECMA STANDARDNORME AECMAAECMA NORMprEN 4612-003Edition P 1March 2005PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATIONGulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8110 - Fax. + 32 2 775 8111 - www.aecma-stan.orgICS:Descriptors:ENGLISH VERSIONAerospace seriesCables,
2、 electrical, for general purpose, single and multicore assemblyXLETFE Familyjacketed or screened and jacketedPart 003: Tin plated copperOperating temperatures, between 65 C and 135 CSingle extruded wall for openapplications, with jacket without screenUV laser printable Product standardSrie arospatia
3、leCbles, lectriques, dusage gnral,mono et multiconducteursFamille XLETFEGains ou blinds et gainsPartie 003 : Cuivre tamTempratures de fonctionnementcomprises entre 65 C et 135 CFil simple isol pour applications externes,gain et non blindMarquable au laser UV Norme de produitLuft- und RaumfahrtEin- u
4、nd mehradrige elektrische Leitungenfr allgemeine VerwendungXLETFE Familiemit Mantel oder geschirmt und MantelTeil 003: Kupfer verzinntBetriebstemperaturen zwischen 65 C und 135 CEinfach extrudierte Isolierungfr externe Verwendung,mit Mantel ohne SchirmUV-Laser bedruckbar ProduktnormThis “Aerospace S
5、eries“ Prestandard has been drawn up under the responsibility of AECMA-STAN (TheEuropean Association of Aerospace Industries - Standardization). It is published for the needs of theEuropean Aerospace Industry. It has been technically approved by the experts of the concerned Domainfollowing member co
6、mments.Subsequent to the publication of this Prestandard, the technical content shall not be changed to anextent that interchangeability is affected, physically or functionally, without re-identification of the standard.After examination and review by users and formal agreement of AECMA-STAN, it wil
7、l be submitted as adraft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote andtransformation to full European Standard (EN).The CEN national members have then to implement the EN at national level by giving the EN the statusof a national standard and by withdra
8、wing any national standards conflicting with the EN.Edition approved for publication31 March 2005Comments should be sent within six monthsafter the date of publication toAECMA-STANElectrical DomainCopyright 2005 by AECMA-STANPage 2 prEN 4612-003:2005Foreword This standard was reviewed by the Domain
9、Technical Coordinator of AECMA-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of AECMA-STAN defined in AECMA-STANs General Process Manual, this standard has received approval for Publication. Contents Page 1 Scope 3 2 Normative references. 3 3 Definitions
10、 and symbols . 3 4 Materials and construction 4 5 Required characteristics. 4 6 Quality assurance. 7 7 Designation 7 8 Identification and marking 7 9 Packaging, labelling and delivery lengths 7 10 Technical specification 7 Page 3 prEN 4612-003:20051 Scope This standard specifies the characteristics
11、of UV laser printable jacket, tin 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 135 C, operating at voltages not exceeding 600 V r.m.s
12、and frequencies not exceeding 2 000 Hz. These jacketed cables are suitable for airframe use without additional protection when the 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 th
13、e requirements of this standard shall take precedence. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. Da
14、ted references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2235, Aerospace series Single and multicore e
15、lectrical cables, screened and jacketed 1) EN 3475-100*, 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 1)EN 4611-003, Aerospace seri
16、es Cables, electrical, for general purpose, single and multicore assembly XLETFE Family Part 003: Tin plated copper Operating temperatures, between 65 C and 135 C Single extruded wall for enclosed applications UV laser printable Product standard 1)EN 4612-002, Aerospace series Cables, electrical, fo
17、r general purpose, single and multicore assembly XLETFE Family jacketed or screened and jacketed Part 002: General 1)EN 9133, Aerospace series Quality management systems Qualification Procedure for Aerospace Standard Parts 1)3 Definitions and symbols See EN 3475-100. * And all its parts 1) Published
18、 as AECMA Prestandard at the date of publication of this standard Page 4 prEN 4612-003:20054 Materials and construction 4.1 Materials These cables shall consist of the following: cores according to EN 4611-003; number of cores 2 to 4. Cores be twisted together according to EN 2235. Filler cores shal
19、l shall not be permitted. Outer jacket: it shall be possible to mark the jacket by UV laser printing; minimum thickness for 2 core shall be 0,13 mm; minimum thickness for 3 core and 4 core shall be 0,15 mm. 4.2 Construction See Table 1. Table 1 Multicore without screen, with jacket 2 core 3 core 4 c
20、ore Max. dia. Mass DC Res. Max. dia. Mass DC Res. Max. dia. Mass DC Res. max. /km max. /km max. /km Size AWG amm kg/km max. mm kg/km max. mm kg/km max. 001 b002 b004 006 010 012 020 030 26 24 22 20 18 16 14 12 2,04 2,13 2,56 2.98 3,49 3,98 4,54 5,47 5,34 6,74 9,66 14,99 21,96 30,32 40,21 66,39 153,5
21、 109,2 61,8 34,2 21,7 15,8 11,2 7,0 2,17 2,38 2,77 3,30 3,85 4,38 4,99 5,99 7,47 10,28 14,55 22,84 33,25 43,88 65,07 97,46 153,5 109,2 61,8 34,2 21,7 15,8 11,2 7,0 2,38 2,60 3,01 3,67 4,25 4,80 6,00 7,09 9,79 13,12 19,29 31,16 43,93 57,76 85,73 128,78 153,5 109,2 61,8 34,2 21,7 15,8 11,2 7,0 aAWG =
22、Closest American Wire Gauge. bSilver plated copper alloy conductor 4.3 Colour coding of cores and jacket See EN 4611-002. 5 Required characteristics According to EN 2235 and EN 3475-100 See Table 2. Page 5 prEN 4612-003:2005Table 2 EN 3475- Test Details 201 Visual examination Applicable 202 Mass App
23、licable; see Table 1. 203 Dimensions Applicable; see Table 1. 301 Ohmic resistance per unit length Applicable; see Table 1. 302 Voltage proof test Not applicable 303 Insulation resistance Not applicable 304 Surface resistance Not applicable 305 Overload resistance Not applicable 401 Accelerated agei
24、ng Applicable Temperature (200 3) C 402 Shrinkage and delamination Applicable Temperature (150 5) 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 030 403 Delamination
25、 and blocking Applicable Temperature (150 5) C 404 Thermal shock Applicable Temperatures ( 65 2) C and (135 3) C Maximum shrinkage at each end of cable: Jacket: 2 mm on size 004 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
26、 Bending at ambient temperature Applicable 406 Cold bend test Applicable 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 applicabl
27、e continued Page 6 prEN 4612-003:2005Table 3 (concluded) EN 3475- Test Details 411 Resistance to fluids Applicable Volume swell not greater than 10 % Scrape not applicable 412 Humidity resistance Applicable Method B Temperature (90 2) C Duration 672 hours 413 Wrap back test Not applicable 414 Differ
28、ential scanning calorimeter (DSC test) Not applicable 501 Dynamic cut-through Not applicable 502 Notch propagation Not applicable 503 Scrape abrasion Not applicable 504 Torsion Not applicable 505 Tensile test on conductors and strands Not applicable 506 Plating continuity Not applicable 507 Adherenc
29、e of plating Not applicable 508 Plating thickness Not applicable 509 Solderability Not applicable 510 Tensile strength and elongation of extruded insulation, sheath and jacket material Applicable Eb 75 % minimum TS 34 MPa minimum 511 Cable-to-cable abrasion Not applicable 512 Flexure endurance Not a
30、pplicable 601 Smoke density Subject to agreement between customer and supplier 602 Toxicity Subject to agreement between customer and supplier 603 Resistance to wet arc tracking Not applicable 604 Resistance to dry arc propagation Not applicable 605 Wet short circuit test Not applicable 701 Strippab
31、ility and adherence of insulation to the conductor Not applicable 702 Screen pushback capability Not applicable 703 Permanence of manufacturers marking Applicable 704 Flexibility Not applicable 705 Contrast measurement Laser marking K 50 % 706 Laser markability Not applicable Page 7 prEN 4612-003:20
32、056 Quality assurance See EN 9133. 7 Designation EXAMPLE: Description block CABLE, ELECTRICAL Identity block EN4612-003A010P Number of this standard Code letter for number of cores (see EN 4612-002, Table 1) Code for nominal section (see Table 1) Code letter for colour coding of cores (see EN 4612-002) 8 Identification and marking See EN 4612-002. 9 Packaging, labelling and delivery lengths See EN 2235. 10 Technical specification See EN 2235.
