1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 31 January 2005 prEN 4608-005 Edition P 1 January 2005 Comments should be sent within six months after the date of publication to AECMA-STAN PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION d%k?&?!f
2、f! Gulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 81 10 - Fax. + 32 2 775 81 11 - www.aecma-stan.org ICs: 49.060 Descriptors: ENGLISH VERSION Aerospace series Cable, electrical, fire resistant Single and twisted multicore assembly, screened (braided) and jacketed Operating temperatures between -
3、65 OC and 260 OC Part 005: DW family - lightweight two-core gauge 24 for data transmission - UV laser printable - Product standard Srie arospatiale Luft- und Raumfahrt Cbles lectriques blinds rsistant au feu Simple et multifilaire blind (tresse) gain Tempratures de fonctionnement comprises entre - 6
4、5 OC et 260 OC Partie 005 : Famille DW - fil allg, bifilaire gauge 24 pour transmission de donnes - marquable laser UV - Norme de produit Feuerbestndige elektrische Leitungen Einzel- und mehradrig verdrillte Leitungen, geschirmt (Geflecht) und ummantelt Betriebstemperaturen zwischen - 65 OC und 260
5、OC Teil 005: DW-Familie - leichte Bauweise, zwei AWG 24 fr Datenbertragung - 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 ne
6、eds 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 frestandard, the technical content shall not be changed to an extent that interchangeabilify is affected, physically or fun
7、ctionally, without re-identification 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).
8、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. Electrical Domain I I Copytight 2005 O by AECMA-STA1 Page 2 prEN 4608-005:2005 Foreword This standard was rev
9、iewed by the Domain 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 1 2 3 4 4.1 4.2 4.3 5 6 7 8 8.1
10、 8.2 9 10 11 Scope Normative references . Definitions . Materials and construction Materials Construction . Colour code . Required characteristics Tests Quality assurance Designation Identification . Type code (for short designation) . Identification and marking Packaging. labelling and delivery len
11、gths . Technical specification Page 3 3 3 4 4 4 4 4 5 7 7 7 8 8 8 8 Page 3 prEN 4608-005:2005 1 Scope This standard specifies the characteristics of gauge 24 two-core lightweight fire proof, screened, electrical cables for data transmission systems of aircraft at operating temperature between - 65 “
12、C and 260 “C. These cables are UV Laser printable in accordance with EN 3838. 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 refe
13、renced document (including any amendments) applies. EN 2083, Aerospace series - Copper or copper alloy conductors for electrical cables - Product standard. EN 2346-005, Aerospace series - Cable, electrical, fire resistant - Operating temperatures between - 65 “C and 260 “C - Part 005: DW family, sin
14、gle UV laser printable and multicore assembly - Light weight - Product standard ). EN 3838, Aerospace series - Requirements and tests on user-applied markings on aircraft electrical cables ). EN 3475*, Aerospace series - Cables, electrical, aircraft use - Test methods. EN 3475-100, Aerospace series
15、- Cables, electrical, aircraft use - Test methods - Part 700: General. EN 4608-001, Aerospace series - Cable, electrical, fire resistant - Single and twisted multicore assembly, screened (braided) and jacketed - Operating temperatures between - 65 “C and 260 “C - Part 007: Technical specification ).
16、 EN 4608-002, Aerospace series - Cable, electrical, fire resistant - Single and twisted multicore assembly, screened (braided) and jacketed - Operating temperatures between - 65 “C and 260 “C - Part 002: General ). EN 91 33, Aerospace series - Quality management systems - Qualification procedure for
17、 aerospace standard parts. TR 6058, Aerospace series - Cable code identification list2). 3 Definitions See EN 3475-100. * All parts quoted in Tables 2 and 3. 1) Published as AECMA Prestandard at the date of publication of this standard. 2) Published as AECMA Technical Report at the date of publicati
18、on of this standard. Page 4 prEN 4608-005:2005 Nominal core section of strands No mm2 2 002 0,25 24 19 4 Materials and construction 4.1 Materials These cables shall consist of the following: - Cores according to EN 2346-005 - Number of cores: 2 2 cores shall be twisted together according to EN 4608-
19、001. Screen: - Nickel plated copper braid - See Table 1 for strand diameter - Material according to EN 2083, tests according to EN 3475-100 - Construction according to EN 4608-001. Conductive Nominal diameter resistance Of at 20 OC strands max. mm Ohmlkm 0,12 135,OO Outer jacket: - Sintered wrapped
20、PTFE UV laser printable Nominal diameter of shield strands 4.2 Construction Number Nominal diameter of shield diameter Mass missing strands External of 0,12 3,5 O 4.3 Colou r code See EN 4608-002. 5 Required characteristics See EN 4608-001 and Table 2. - Operating temperature: 260 OC max. continuous
21、. - Operating voltage: 600 V AC. - Use frequency: 125 kHz maximum. Page 5 prEN 4608-005:2005 6 Tests See Table 2. Table 2 EN 3475- Test No Title Details 20 1 Visual examination Applicable. 202 203 Applicable Table 1. Applicable Table 1. Mass Dimensions 301 Ohmic resistance per unit length Applicable
22、 Table 1. 302 Voltage proof test - Immersion test Applicable. 302 303 304 Voltage proof test - Dry test Insulation resistance Surface resistance Applicable. Applicable. Applicable. 305 Overload resistance Not applicable. 306 Continuity of conductors Applicable. Applicable. Temperature: (31 O k 5) OC
23、. 40 1 Accelerated ageing Applicable. Temperature: (31 O k 5) OC. Maximum shrinkage: 13 mm. 402 Shrinkage and delamination 403 Applicable. Temperature: (31 O k 5) OC. Delamination and blocking Applicable. Temperature 260 OC. Maximum shrinkage: 13 mm 404 Thermal shock 405 Bending at ambient temperatu
24、re Applicable. Applicable. Temperature: (- 65 k 2) OC. 406 Cold bend test Applicable. Extinction time: 3 s. Applicable. 15 min. Insulation resistance: 1 O O00 ohms. Load: 170 g for 002. 407 Flammability - Method 1 408 Fire resistance 409 41 O 41 1 Air-excluded ageing Thermal endurance Resistance to
25、fluids Not applicable. Not applicable. Applicable. 41 2 Humidity resistance Not applicable. 41 3 Wrap back test Not applicable. continued Page 6 prEN 4608-005:2005 Title Table 2 (continued) Details EN3475- Test No I 414 41 5 416 Differential scanning calorimeter (DSC test) Not applicable. Rapid chan
26、ge of temperature Not applicable. Thermal stability Not applicable. 502 41 7 Applicable. Depth notch: 0,lO mm. Notch propagation 50 1 504 Fire resistance of cable inside harness Torsion Dynamic cut-through 507 508 Not applicable. Applicable. Temperature 260 OC, 1 hour. See Table 3. Adherence of plat
27、ing Plating thickness 51 2 I 503 I Scrape abrasion Flexure endurance I Not applicable. 51 Applicable. See Table 3. Deformation resistance (Installation with Not applicable. plastic cable ties) Not applicable. 60 1 602 I 505 I Tensile test on conductors and strands I Applicable. Smoke density Not app
28、licable. Toxicity Not applicable. I 506 I Plating continuity 603 Resistance to wet arc tracking Not applicable. Applicable. Applicable. 604 605 701 Applicable. Resistance to dry arc propagation Wet short circuit test Strippability and adherence of insulation to the conductor Adherence: not applicabl
29、e. Not applicable. Not applicable. StriPPability: applicable. 509 I Solderabilitv I Not applicable. 702 703 704 Tensile strength and elongation of extruded insulation. sheath and iacket material 510 I Screen pushback capability Applicable. Permanence of manufacturers marking Applicable. Flexibility
30、Not applicable. Not applicable. 706 51 1 I Cable-to-cable abrasion Laser markability Applicable. Not applicable. I 705 I Contrast measurement I Applicable 2 50 %. I 801 I Capacitance per unit length Mutual capacitance C 85 pF/m at 1 O0 kHz continued Page 7 prEN 4608-005:2005 804 805 Table 2 (conclud
31、ed) Velocity of propagation Characteristic impedance Differential impedance. Applicable 2 1 O0 O00 km/s. Applicable. Zc: 120 SZ k 20 % at 100 kHz. EN3475- Test No I 806 Title Attenuation Details Code number 002 802 I Capacitance unbalance I Applicable 10 % at 100 kHz. Test 501 Test 503 Dynamic cut-t
32、hrough Scrape abrasion Nominal cross section Load mm2 N N 0,25 25 3 195 20 “C 260 “C 803 I Capacitance variation I Not applicable. Description block CABLE, ELECTRICAL, FIRE RESISTANT Identity block EN4608-005A002 Code Number letter of this for number standard of fi- cores (see EN 4608-002, Table 1)
33、Applicable. Finished cable. A 1,6 dB/100 mat 100 kHz. 807 I Transfer impedance I Applicable Zt 30 mSZ at 100 kHz 808 I Cross-talk I Not applicable. Table 3 7 Quality assu rance See EN 9133. 8 Designation 8.1 Identification EXAMPLE NOTE If necessary, the code 19005 shall be placed between the descrip
34、tion block and the identity block. Page 8 prEN 4608-005:2005 8.2 Type code (for short designation) Code designation in accordance with TR 6058, see Table 4 Table 4 1 EN references I Code designation 2 cores I EN4608-005B002 I GPB 24 9 Identification and marking See EN 4608-002. (Excepted “EN” marking, which is used in case of AECMA-CERT qualification only) EXAMPLE On the outer jacket: GPB 24 FRF03 DWA 24 FRFO3 Optional on cores: 10 See EN 4608-001. Packaging, labelling and delivery lengths 11 See EN 4608-001. Tech n i cal s peci f cat io n
