1、ASD STANDARD NORME ASD ASD NORM prEN 3719 Edition P 3 June 2009 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: 49.060 Supersedes edition P 2 of Dec
2、ember 1999 and will supersede EN 3719:2005 Descriptors: Aerospace series, aircraft equipment, electrical cables, testing ENGLISH VERSION Aerospace series Aluminium or aluminium alloy conductors for electrical cables Product standard Srie arospatiale Conducteurs en aluminium ou en alliage daluminium
3、pour cbles lectriques Norme de produit Luft- und Raumfahrt Leiter aus Aluminium oder Aluminiumlegierung fr elektrische Leitungen Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standa
4、rdization). 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 interchange
5、ability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformat
6、ion 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. Edition approved for publication 10 June 2009 Comments should be sent wit
7、hin six months after the date of publication to ASD-STAN Electrical Domain Copyright 2009 by ASD-STAN prEN 3719:2009 2 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Terms, definitions and symbols.3 4 Conductor materials and construction .3 5 Required characteristics.5 6 Test methods5
8、7 Quality assurance6 8 Designation 6 9 Marking, packaging and delivery lengths .6 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 Proces
9、s Manual, this standard has received approval for Publication. prEN 3719:2009 3 1 Scope This standard specifies the dimensions, linear resistance, mechanical characteristics, construction and mass of conductors in aluminium or aluminium alloy for electrical cables for aerospace applications. It appl
10、ies to stranded conductors with nominal cross-sections of 5 mm2to 107 mm2inclusive. 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 th
11、e referenced document (including any amendments) applies. EN 3475-100*, Aerospace series Cables, electrical, aircraft use Test methods Part 100: General. EN 9133, Aerospace series Quality management systems Qualification Procedure for aerospace standard parts. 3 Terms, definitions and symbols For th
12、e purposes of this document, the terms, definitions and symbols given in EN 3475-100 apply. 4 Conductor materials and construction 4.1 Materials The conductors in accordance with this standard shall consist of individual annealed aluminium (EC grade 99,7 % AL) or aluminium alloy strands with the fol
13、lowing composition defined in Table 1. Table 1 Others % Si Fe Cu Mn Mg Cr Zn Ti V B singly togetherAl min. 0,50 0,08 99,1max. 0,10 0,80 0,035 0,01 0,25 0,007 0,05 0,02 0,007 0,015 0,03 0,10 *All parts quoted in this standard. prEN 3719:20094 4.2 Material for individual strands and code The individua
14、l strands may be: pure aluminium (code E); aluminium alloy (code A); aluminium alloy with tin plating (code B); aluminium alloy with silver plating (code C); aluminium alloy with nickel plating (code D). Plating thickness shall be at least 1,0 m for silver and 1,0 m for nickel. When tin plating is a
15、uthorized, the thickness shall be sufficient to comply with the tests specified in EN 3475-506 and EN 3475-507. 4.3 Aluminium or aluminium alloy The maximum resistivity shall be: 3,0 10-8 m 1) The elongation at rupture for each individual strand shall be 10 %. The tensile strength of each individual
16、 strand shall be at least 105 MPa.(105 N/mm2) 4.4 Construction of conductors 4.4.1 Lay length Up to 9 mm2cross-section inclusive (code 090), concentric conductors are used. The lay for the strands of a concentric conductor, checked over the outside layer of a test piece 1 m long, shall be between ei
17、ght times and 16 times the maximum diameter of this conductor. For sectional areas between 14 mm2and 107 mm2(codes 140 to 107), the conductor comprises concentric or bunched conductors twisted together. The lay of the strands for the basic concentric or bunched conductors shall not exceed 30 times t
18、he diameter of the concentric or bunched conductor in question. The lay for concentric (or bunched) conductors, measured over the outer layer of the conductor, shall be between eight times and 16 times the maximum conductor diameter. In all cases the lay of the outer layer shall be left-hand. 4.4.2
19、Joints The conductors shall be free from any joints. Each strand comprising the conductors may, however, include soldered or brazed joints. For strands with a diameter of 0,25 mm or greater, butt joints shall be used. The distance between two joints in individual strands shall exceed 3 m, measured b
20、etween different strands. 1) Or 30 m 2/km. prEN 3719:2009 5 4.4.3 Compaction Compaction of the conductor, causing deformation of the strands with damage to the plating, is not permitted. 5 Required characteristics See Table 2. Table 2 Code Nominal cross-section Number of strands Nominal diameter of
21、strands Diameter of conductor Resistance at 20 C a bMass AWGc Numberof missing single strands mm /km max. bmm2mm min. max. max. kg/km 050 5 27 0,51 2,70 3,10 5,80 15,4 10 0 090 9 41 0,51 3,50 3,90 3,80 25,4 8 0 140 14 7 10 0,51 4,75 5,25 2,20 45,0 6 0 220 22 7 15 0,51 5,80 6,40 1,50 67,6 4 0 280 28
22、7 19 0,51 6,50 7,10 1,18 77,0 3 0 340 34 7 24 0,51 7,40 8,00 0,94 108,1 2 2 420 42 7 30 0,51 8,30 8,90 0,75 135,3 1 2 530 53 19 14 0,51 9,70 10,30 0,60 171,3 0 3 680 68 19 18 0,51 11,10 11,70 0,43 220,3 00 3 850 85 19 22 0,51 12,40 13,00 0,36 269,2 000 4 107 107 27 20 0,51 or Layer 1: 7 15 0,51 107
23、107 Layer 2: 12 15 0,51 14,10 14,80 0,29 347,5 0000 5 Layer 3: 15 14 0,51 + 3 15 0,51 aFor other temperatures this may be calculated using the formula shown in EN 3475-301. bNot taking into consideration metal platings, assuming that their effect is minimal. cAWG = closest American Wire Gage. 6 Test
24、 methods According to EN 3475-100. See Table 3. prEN 3719:20096 Table 3 EN 3475- Designation of the test Details 201 Visual examination Applicable 202 Mass Applicable; see Table 2. 203 Dimensions Applicable; see Table 2 and 4.1. 301 Electrical resistance per unit length Applicable; see Table 2. 418
25、Conductor thermal endurance Not applicable Applicable only on finished product according to cable product Standard. 505 Tensile test on conductors and strands Applicable; see 4.3. 506 Plating continuity Applicable to codes B and C 507 Adherence of plating Applicable 508 Plating thickness Applicable;
26、 see 4.2. 509 Solderability Applicable to codes B and C 7 Quality assurance See EN 9133. 8 Designation EXAMPLE Description block CONDUCTOR, ALUMINIUM Identity block EN3719D340 Number of standard Material code (see 4.2) Code for nominal cross-section (see Table 2) NOTE If necessary, the code I9005 sh
27、all be placed between the description block and the identity block. 9 Marking, packaging and delivery lengths On delivery the identification reference shall be completed by the length, date and inspection mark. The conductors shall be delivered on spools or reels. They shall be wound in a regular and uniform manner and require an appropriate protection, not affecting the product delivered. Each unit delivered may contain one or several lengths as specified by the purchaser.
