1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 30 April 2004 prEN 4608-003 Edition P 1 April 2004 Comments should be sent within six months after the date of publication to Electrical Domain AECMA-STAN ICs: Descriptors: ENGLISH VERSION Aerospace series Cables, electrical, fir
2、e resistant Single and twisted multicore assembly, screened (braided) and jacketed Operating temperature between - 65C and 260C Part 003: DN family - lightweight - UV Laser printable Product standard Srie arospatiale Cbles lectriques blind rsistant au feu simple et multifilaire blind (tresse) gain r
3、empratures de fonctionnement comprises entre - 65C et 260C Partie 003 : Famille DN - fil allg marquable laser UV Norme de produit Luft- und Raumfahrt Feuerbestndige elektrische Leitungen einzel- und mehradrig verdrillte Leitungen, geschirmt (Geflecht) und ummantelt Betriebstemperaturen zwischen - 65
4、C und 260C Teil 003: DN Familie - leichte Bauweise UV Laser bedruckbar Produktnorm This “Aerospace Series“ frestandard has been drawn up under the responsibility of AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published for the needs of the European Aerospac
5、e Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this frestandard, the technical content shall not be changed to an extent that interchangeabilify is affected, physically or functionally, without re-identi
6、fication of the standard. After examination and review by users and formal agreement of AECMA-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 hav
7、e 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. Page 2 prEN 4608-003:2004 Foreword This standard was reviewed by the Domain Technical Coordinator of AECMA-STANS Electrical Domain . Afte
8、r 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 2 3 4 4.1 4.2 4.3 5 6 7 8 9 10 11 Scope 3 Normative references 3 Definitions 3 Materials and construction .
9、4 Materials . 4 Construction . 4 Colour code 5 Required characteristics . 5 Tests 5 Quality assurance 7 Designation 8 Identification and marking 8 Packaging. labelling and delivery lengths 8 Technical specification . 8 Page 3 prEN 4608-003:2004 1 Scope This standard specifies the characteristics of
10、a light weight fire resistant, screened, electrical cables for use in the on-board electrical systems of aircraft at operating temperature between - 65C and 260C. These cables are UV Laser printable in accordance with EN 3838. 2 Normative references This European Standard incorporates by dated or un
11、dated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only whe
12、n incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 2346-004, Aerospace series - Cables, electrical, fire resistant - Operating temperatures between - 65 “C and 260 “C - Part 004 : DN family, singl
13、e UV laser printable and multicore assembly - Light weight - Product standard. ) EN 3475, Aerospace series - Cables, electrical, aircraft use - Test methods. 2, EN 3838, Aerospace series - Requirements and tests on user-applied markings on aircraft electrical cables. EN 4608-001, Aerospace series -
14、Cable, electrical, fire resistant, single and twisted multicore assembly, screened (braided) and jacketed - Operating temperature between - 65C and 260C - Part I: Technical specification. 3) EN 4608-002, Aerospace series - Cable, electrical, fire resistant, single and twisted multicore assembly, scr
15、eened (braided) and jacketed - Operating temperature between - 65C and 260C - Part 002 : General. 3, EN 91 33, Aerospace series - Qualify management systems - Qualification Procedure for Aerospace Standard parts ) TR 6058, Aerospace series - Cable code identification list 4 3 Definitions For the pur
16、poses of this European Standard the definitions given in EN 3475-100 apply. 1) Published as AECMA Prestandard at the date of publication of this standard 2) Including all its parts 3) In preparation at the date of the publication of this standard 4) Published as AECMA Technical Report at the date of
17、 publication of this standard. Page 4 prEN 4608-003:2004 2,08 2,32 2,65 2,89 3,39 3,84 4,32 4,82 4 Materials and construction 4.1 Materials These cables shall consist of the following: - Cores according to EN2346-004 - Number of cores: 1 to 3 2 and 3-core shall be twisted together according to EN460
18、8-001. Screen: - Nickel plated copper braid - See Table 1 for strand diameter - Material according to EN 2083, tests according to EN 3475-100 2,78 17,3 3,OO 21,25 3,30 27,7 3,60 342 4,lO 43,8 4,70 31,7 5,20 40,l 5,60 49,5 - Construction according to EN 4608-001 Outer jacket: - Sintered wrapped PTFE
19、UV laser printable 4.2 Construction Table 1 No. of cores Nominal diameter of strands Conductive resistance at 20C Ohmlkm Nominal diameter of shield strands Shield External Mass diameter diameter max. max. max. Nominal Number No. max. 004 I 0,4 I 22 I 19 006 I 0.6 I 20 I 19 0,15 0.20 80,90 44,30 27,9
20、0 18,80 0,lO 0.10 O O O10 I 1.0 I 18 I 19 O 0,25 0,30 0,25 0.15 0,12 0,12 O O O 13,90 82.50 0,12 0.12 O 0,20 0,25 0,30 0.25 45,20 28,50 19,20 14,20 82,50 45,20 28,50 19.20 0,12 0,12 O O O 5,30 I 6,lO I 62,5 6.30 I 7.10 I 81.2 0,12 0.12 4,09 I 54 I 41,8 4,61 I 5,5 I 53,9 O 0,15 0,20 0,12 0,12 O O O 3
21、 5,15 I 5,90 I 67,8 5.66 I 6.50 I 86.5 0,25 0,30 0,12 0.12 6.86 I 7.70 I 118.7 O 0,25 14,20 0,15 a Closest American Wire Gauge Page 5 prEN 4608-003:2004 4.3 Colour code See EN 4608-002 5 Required characteristics See EN 4608-001 and Table 2. - Operating temperature: + 260 “C max. continuous - Operati
22、ng voltage: 600 V AC - Use frequency: 2000 Hz max. 6 Tests See Table 2. Table 2 Title EN 3475 Test No. 201 202 Details Visual examination Applicable Applicable, see Table 1 Mass 203 30 1 302 Applicable, see Table 1 Applicable, see Table 1 Dimensions Electrical resistance per unit length Voltage proo
23、f test Immersion test applicable Voltage proof test Dry test applicable 302 303 Insulation resistance Applicable Surface resistance 304 305 Applicable Not Applicable Overload resistance 40 1 Accelerated ageing Applicable Temperature: 310C k 5C Applicable Temperature: 310C k 5C Maximum shrinkage: 13
24、mm 402 Shrinkage and delamination 403 Delamination and blocking Applicable. Temperature: 310C k 5C Applicable Temperature 260C Maximum shrinkage : 13 mm 404 Thermal shock Bending at ambient temperature Applicable 405 continued Page 6 prEN 4608-003:2004 Table 2 (continued) Title Details EN 3475 Test
25、No. 406 Cold bend test Applicable Temperature: - 55C k 2C. Method 1 applicable 407 Flammability Extinction time: 3s Applicable Load : 170 g for 004 ; 340 g for 2 006 408 Fire resistance 409 Air-excluded ageing Not applicable 41 O Thermal endurance Not applicable Resistance to fluids Applicable. 41 1
26、 41 2 Humidity resistance Not applicable 41 3 Not applicable Wrap back test Differential scanning calorimeter (DSC test) 41 4 Not applicable Applicable to codes 004 to 020 included 50 1 Dynamic cut-through Temperature 260C 1 hour See Table 3 Applicable to codes 004 to 020 included 502 Notch propagat
27、ion Depth notch: 0,lO mm Applicable to codes 004 to 020 included Scrape abrasion 503 504 See Table 3 Torsi on Not applicable Tensile test on conductors and strands Applicable 505 506 Plating continuity Applicable Applicable 507 508 Adherence of plating Plating thickness Applicable 509 Solderability
28、Not applicable continued Page 7 prEN 4608-003:2004 EN 3475 Test No. 51 O 51 1 51 2 60 1 602 603 604 605 70 1 702 703 704 705 706 Table 2 (concluded) Title Details Tensile strength and elongation of extruded Not applicable insulation, sheath and jacket material Cable to cable abrasion Not applicable
29、Flexure endurance Not applicable Smoke density Not applicable Toxicity Not applicable Resistance to wet arc tracking Not applicable Resistance to dry arc tracking and electric Not applicable arc propagation Wet short circuit test Not applicable Strippability : applicable Strippability and adherence
30、of insulation to Adherence : not applicable the conductor Screen pushback capability Applicable Permanence of manufacturers marking Applicable Flexibility Not applicable Contrast measurement Applicable 2 50% Laser markability Applicable Code number 004 006 o1 o o1 2 020 7 Quality assurance Nominal c
31、ross Test 501 Test 503 cut-through Load N section Dynamic Scrape abrasion 260C 20C (mm2) (NI 0,4 45 6 3 0,6 55 6 395 130 70 7 4 132 85 7 4 230 95 8 4 See EN 9133. Page 8 prEN 4608-003:2004 8 Designation EXAMPLE Description Block Numbe CABLE, ELECTRICAL, FIRE RESISTANT of this standard - O Code for n
32、ominal section (see Table 1) Identity block EN 4608-003 II- Code letter for number of cores (see EN4608-002, Table I) NOTE If necessary, the code 19005 shall be placed between the description block and the identity block. 9 Identification and marking See EN 4608-002. 10 Packaging, labelling and delivery lengths See EN 4608-001. 11 Technical specification See EN 4608-001.
