AECMA PREN 2346-005-2005 Aerospace series Cable electrical fire resistant Operating temperatures between - 65 degrees C and 260 degrees C Part 005 DW family single UV laser printab.pdf

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1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 31 January 2005 prEN 2346-005 Edition P 1 January 2005 Comments should be sent within six months after the date of publication to AECMA-STAN ICs: 49.060 Descriptors: ENGLISH VERSION Aerospace series Cable, electrical, fire resist

2、ant Operating temperatures between - 65 OC and 260 OC Part 005: DW family, single UV laser printable and multicore assembly Light weight Product standard Srie arospatiale Cbles lectriques rsistant au feu Tempratures de fonctionnement comprises entre - 65 OC et 260 OC Partie 005 : Famille DW, fil sim

3、ple marquable au laser UV et lments assem bls Version allge Norme de produit Luft- und Raumfahrt Feuerbestndige elektrische Leitungen Betriebstemperaturen zwischen - 65 OC und 260 OC Teil 005: DW-Familie, ein-und mehradrige Leitungen UV-laser bedruckbar Gewichtsoptimiert Prod u ktno rm This Xerospac

4、e Series“ Prestandard 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 Aerospace Industry. It has been technically approved by the experts of the concerned Domain following mem

5、ber comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of AECMA-STA

6、N, 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 have then to implement the EN at national level by giving the EN the status of a national standard a

7、nd by withdrawing any national standards conflicting with the EN. Electrical Domain I I Copyright 2005 O by AECMA-STA/ Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without licen

8、se from IHS-,-,-Page 2 prEN 2346-005:2005 Foreword This standard was reviewed 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 recei

9、ved approval for Publication. Contents 1 2 3 4 4.1 4.2 4.3 4.4 5 6 7 8 9 10 11 Scope Normative referen ces Definitions Materials and construction Materials Construction Colour code Number of cores Required characteristics Tests Quality assurance Designation Identification and marking Packaging, labe

10、lling and delivery lengths Technical specification Page 3 3 3 3 3 4 4 4 4 5 7 7 8 8 8 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 3 prEN 2346-

11、005:2005 1 Scope This standard specifies the characteristics of light weight fire proof, unscreened, electrical cables for use in the on-board electrical systems of aircraft at operating temperature between - 65C and 260“C, for use with low voltage only up to 30 Volts. Single core is UV Laser printa

12、ble in accordance with EN 3838; UV laser markability is not mandatory for multicore cables. 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 editi

13、on of the referenced document (including any amendments) applies. IEC 28: 1925, International standard of resistance for copper. EN 2234, Aerospace series - Cable, electrical, fire resistant - Technical specification. EN 2346-002, Aerospace series - Cable, electrical, fire resistant - Operating temp

14、eratures between - 65 “C and 260 “C - Part 002: General. EN 3475-*, Aerospace series - Cables, electrical, aircraft use - Test methods. EN 3475-1 00, Aerospace series - Cables, electrical, aircraft use - Test methods - Part 100: General. EN 3838, Aerospace series - Requirements and tests on user-app

15、lied markings on aircraft electrical cables. EN 4608-001, Aerospace series - Cable, electrical, fire resistant - Single and multicore assembly, screened andjacketed - Operating temperatures between - 65 “C and 260 “C - Part 001: Technical specification. EN 91 33, Quality management systems - Qualifi

16、cation procedure for aerospace standard parts. 3 See EN 3475-100. Def i n i ti ons 4 Materials and construction 4.1 Materials 4.1 .I Conductors Individual strands used for the conductors shall be cylindrical and shall be: - of nickel clad copper alloy for nominal cross sections of 0,4 mm2 (004) and

17、0,25 mm2 (002), - of nickel clad copper for nominal cross sections 2 0,06 mm2 (006). The copper shall meet the requirements of IEC 28 and the copper alloy the requirements of EN 2234. * 1) All parts quoted in Tables 2 and 3. Published at AECMA Prestandard at the date of publication of this standard

18、Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 4 prEN 2346-005:2005 4.1.2 Insulation The insulation shall comply with the requirements of the pre

19、sent standard and Subclause 4.2 of EN 2234. 4.2 Construction See Table 1 Table 1 No of core - 1 - 2 - 3 Nominal cross section mm2 Number of strands Nominal diameter of strands mm Conductive resistance at 20 “C max. Ohmlkm Number of missing strands :onductor diameter max. mm External diameter Code lu

20、mber - 002 b 004 006 O10 012 020 004 006 O10 012 020 004 006 O10 012 020 WG a - 24 22 20 18 16 14 22 20 18 16 14 22 20 18 16 14 - - Mass max. g/m 6,3 9,o - 5,o 12,7 17,O 22,o 12,98 18,54 26,16 35,02 45,32 19,47 27,81 39,24 52,53 67,98 min. mm 1,20 1,55 1,80 2,04 2,28 2,53 - - - max. mm 1,65 1,80 1,9

21、7 2,23 2,50 2,75 3,60 3,94 4,46 5,OO 5,80 3,87 4,23 4,79 5,37 - 5,91 19 19 19 19 19 37 0,12 0,20 0,25 0,30 0,25 0,15 131 ,O0 80,90 44,30 27,90 18,80 13,90 0,62 0,80 1 ,O4 1,29 1,53 1,82 19 19 19 19 37 0,15 0,20 0,25 0,30 0,25 82,5 45,2 28,5 19,2 14,2 0,80 1 ,O4 1,29 1,53 1,82 19 19 19 19 37 0,15 0,2

22、0 0,25 0,30 0,25 82,5 45,2 28,5 19,2 14,2 0,80 1 ,O4 1,29 1,53 1,82 a Closest American Wire Gauge 002 code number available only for EN 4608-005. 4.3 Colour code See EN 2346-002. 4.4 Number of cores See EN 2346-002. See EN 4608-001 Subclause 4.2.1 for assembly. 5 Required characteristics See EN 2234

23、 and Table 2. - Operating temperature: 260 “C Max. continuous - Operating voltage: 600 V AC. - Use frequency: 2 O00 Hz Max. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without

24、license from IHS-,-,-Page 5 prEN 2346-005:2005 404 6 Tests See Table 2. Thermal shock Table 2 41 O 41 1 Thermal endurance Resistance to fluids 41 2 41 3 Humidity resistance Wrap back test EN3475- I Designation of the test Remarks 201 I Visuai examination Applicable. 202 Mass 203 Dimensions Applicabl

25、e Table 1. Applicable Table 1. 301 302 Ohmic resistance per unit length Voltage proof test - Immersion test Applicable Table 1. Applicable EN 2234. 302 303 Insulation resistance Voltage proof test - Dry spark test Applicable EN 2234. Applicable EN 2234. 304 I Surface resistance Applicable EN 2234. A

26、pplicable to code 006 EN 2234. TI = (310 k 5) OC. T2 = (450 k 5) OC. 305 I Overload resistance Applicable. 306 Continuity of conductors 40 1 Accelerated ageing Applicable EN 2234. Temperature: (310 k 5) OC. Applicable. Temperature: (310 k 5) OC. Maximum shrinkage: 13 mm. 402 Shrinkage and delaminati

27、on 403 I Delamination and blocking Applicable EN 2234. Temperature: (310 k 5) OC. Applicable EN 2234. Temperature: 260 OC. Max. shrinkage 13 mm. 405 I Bending at ambient temperature Applicable EN 2234. 406 I Cold bend test Applicable EN 2234. Temperature: (- 65 k 2) “C. 407 I Flammability - Method 1

28、 Applicable EN 2234. Extinction time: 3 s. Applicable. 15 min. Insulation resistance: 10 O00 ohms. Load 170 g for 002 and 004,340 g for 2 006. 408 I Fire resistance 409 I Air-excluded ageing Not applicable. Applicable EN 2234,40 O00 h, 260 OC. Applicable EN 2234. Not applicable. Applicable. 414 I Di

29、fferential scanning calorimeter (DSC test) Not applicable. continued Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 6 prEN 2346-005:2005 EN 3475-

30、 Designation of the test Remarks 41 5 I Rapid change of temperature 50 1 I Not applicable. Dynamic cut-through 41 6 I Thermal stability I Not applicable. 504 505 Not applicable. Fire resistance of cable inside shielded harness 417 I Applicable to codes 002 to 020 included. T3 = (260 k 5) OC. T4 = (2

31、75 k 5) OC. Applicable. Torsion Tensile test on conductors and strands 506 507 Applicable to codes 002 to 020 included. Temperature 260 OC, 1 h. See Table 3. Plating continuity Applicable. Adherence of plating Applicable. 502 I Notch propagation 508 509 Applicable to codes 002 to 020 included. Depth

32、 notch: 0,25 mm. Plating thickness Applicable. Solderability Not applicable. 503 I Scrape abrasion 51 O 51 1 Applicable to codes 002 to 020 included. See Table 3. Tensile strength and elongation of extruded Not applicable, insulation, sheath and jacket material Cable-to-cable abrasion Not applicable

33、. 51 2 Flexure endurance Not applicable. 60 1 602 Smoke density Not applicable. Toxicity Not applicable. 603 604 Not applicable. Deformation resistance (Installation with plastic cable ties) 513 I Resistance to wet arc tracking Resistance to dry arc propagation Not applicable. Not applicable. 70 1 7

34、02 Strippability and adherence of insulation to the conductor Adherence not applicable. Screen pushback capability Not applicable. Strippability applicable. 605 I Wet short circuit test 703 704 Applicable. Wire damage 70 mm. Permanence of manufacturers marking Applicable. Flexibility Not applicable.

35、 705 I Contrast measurement Applicable 2 50 % to single core. Not applicable to multicore. 706 I Laser markability I Applicable. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted wit

36、hout license from IHS-,-,-Page 7 prEN 2346-005:2005 Description block CABLE, ELECTRICAL, FIRE RESISTANT Table 3 Identity block EN2346-005A004 7 Quality assurance See EN 9133. Code Number letter of this for number standard of fi- cores (see EN 2346-002, Table 1) or N for non laser printable single co

37、re Code for nominal section (see Table 1) 8 Designation 8.1 Identification EXAMPLE Single core UV laser printable Single core non UV laser printable EN references Code designation EN2346-005A DW EN2346-005N (used for multicore and shielded, jacketed wires) DWA NOTE If necessary, the code 19005 shall

38、 be placed between the description block and the identity block. 2 cores I EN2346-005B I DWB 3 cores I EN2346-005C DWC I Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without lic

39、ense from IHS-,-,-Page 8 prEN 2346-005:2005 9 Identification and marking See EN 2346-002 (excepted “EN” marking, which is used in case of AECMA-CERT qualification only) EXAMPLE Single core: DW 22 FRF03 Single core of multicore: DWA 22 FRF03 10 See EN 2234. Packaging, labelling and delivery lengths 11 Technical specification See EN 2234. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-