1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 2001-11-30 prEN 2346-004 Edition P 1 November 2001 Comments should be sent within six months after the date of publication to AECMA-STAN Mr Pezzetta Gulledelle 94 Electrical Domain 8-1200 BRUXELLES PUBLISHED BY THE EUROPEAN ASSOC
2、IATION OF AEROSPACE INDUSTRIES - STANDARDIZATION (AECMA-STAN) Gulledelle 94 - B-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs: 49.060 Descriptors: ENGLISH VERSION Aerospace series Cable, electrical, fire resistant Operating temperatures between - 65 “C and 260 OC Part 004: DN
3、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 “C et 260 “C Partie 004 : Famille DN, fil simple rnarquable au laser UV et lments assembls Version allge Norme d
4、e produit Luft- und Raumfahrt Feuerbestndige elektrische Leitungen Betriebstemperaturen zwischen - 65 “C und 260 OC Teil 004: DN-Familie, ein-und mehradrige Leitungen UV-laser bedruckbar Gewichtsoptimiert Produktnorrn This “Aerospace Series“ Prestandard has been drawn up under the responsibility of
5、AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published on green paper 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 P
6、restandard, 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-STAN it will be submitted as a draft European Standard t
7、o CEN (European Committee for Standardization) for formal vote. Page 2 prEN 2346-004: 2001 Contents 1 2 3 4 4.1 4.2 4.3 4.4 5 6 7 8 9 10 11 Scope . Normative references . . . Construction . . . Required characteristics . Quality assurance . Identification and marking Tests Packaging, labelling and d
8、elivery lengths Page 3 3 3 3 3 4 4 4 4 5 7 7 7 7 7 Page 3 prEN 2346-004: 2001 1 Scope This standard specifies the characteristics of light weight fire resistant, unscreened, electrical cables for use in the on-board electrical systems of aircraft at operating temperature between - 65 “C and 260 “C.
9、Single core is UV laser printable in accordance with EN 3838; UV laser markability is not mandatory for multicore cables. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropria
10、te 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 when incorporated in it by amendment or revision. For undated references the latest edition of the publicatio
11、n referred to applied. IEC 28: 1925 EN 2234 EN 2346-002 EN 3042 EN 3475 * EN 3475-100 EN 3838 EN 4608-001 International standard of resistance for copper Aerospace series - Cable, electrical, fire resistant - Technical specification 1) Aerospace series - Cable, electrical, fire resistant - Operating
12、 temperatures between - 65 “C and 260 “C - Part 002: General 1) Aerospace series - Quality assurance - EN aerospace products - Qualification procedure Aerospace series - Cables, electrical, aircraft use -Test methods Aerospace series - Cables, electrical, aircraft use - Test methods - Part 100: Gene
13、ral 1) Aerospace series - Requirements and tests on user-applied markings on aircraft electrical cables 1) Aerospace series - Cables, electrical, fire resistant - Single and multicore assembly, screened and jacketed - Operating temperature between - 65 “C and 260 “C - Part O01 : Technical specificat
14、ion 2) 3 Definitions For the purposes of this standard, the definitions given in EN 3475-1 O0 apply. 4 Materials and construction 4.1 Materials 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 mm
15、2 (004); - of nickel clad copper for nominal cross sections 1 0,6 mm2 (006). The copper shall meet the requirements of IEC 28 and the copper alloy the requirements of EN 2234. Insulation: The insulation shall comply with the requirements of EN 2234. * And ali its parts quoted in this standard 1) Pub
16、lished at AECMA Prestandard at the date of publication of this standard 2) In preparation at the date of publication of this standard Page 4 prEN 2346-004: 2001 Conductive Conductor Nominal Number diameter resistance at 20 “C of strands strands rnrn Q/km mm max. max. , 22 19 0,15 80,90 0,80 20 19 0,
17、20 44,30 1 ,O4 18 19 0,25 27,90 1,29 16 19 0,30 18.80 133 14 37 0,25 13,90 1,82 22 19 0,15 82.5 0,80 20 19 0,20 45,2 1 ,O4 18 19 0,25 28.5 1,29 16 19 0,30 19,2 153 14 37 0,25 14,2 1,82 22 19 0,15 82.5 0,80 20 19 0,20 45,2 1 ,O4 18 19 0,25 28.5 1,29 16 19 0,30 19,2 133 14 37 0,25 14,2 1,82 diameter A
18、WG of 4.2 Construction See table I. Number of External Diameter Mass missing strands mm mm glrn min. max. rnax. 1.60 1,75 6,8 O 1.83 2,OO 9,9 O 2.06 2,25 13,7 O 2.29 2,60 18,9 O 2.77 3,lO 25,9 O 3.36 3,50 14,2 O 3.84 4,OO 20,5 O 4.34 4,60 28,5 O 4.82 5,lO 37,7 O 5.82 6,lO 52,8 O 3.61 3,80 21,2 O 4.1
19、3 4,40 30,8 O 4.67 4,90 42,8 O 5.18 5,50 56,5 O 6.26 6,60 79,l O No of core I mm2 Nominal code cross number section 004 006 2 o1 o 012 020 004 006 3 O10 o1 2 020 2,o Table 1 I a Closest American Wire Gauge I 4.3 Colour code See EN 2346-002. 4.4 Number of cores See EN 2346-002. See EN 4608-001 for as
20、sembly. 5 Required characteristics See EN 2234 and table 2. - operating temperature: 260 “C max. continuous - operating voltage: 600 VA, - ose frequency: 2 O00 Hz max. Page 5 prEN 2346-004: 2001 Designation of the test Visual examination Mass Dimensions 6 Tests Remarks Applicable Applicable Table I
21、Applicable Table 1 See table 2. Voltage proof test - Dry test Insulation resistance Surface resistance Table 2 Applicable EN 2234 Applicable EN 2234 Applicable EN 2234 EN 3475- Overload resistance Accelerated ageing Shrinkage and delamination Delamination and blocking Thermal shock Bending at ambien
22、t temperature Cold bend test Flammability - Method 1 Fire resistance Air-excluded ageing Thermal endurance Resistance to fluids Humidity resistance Wrap back test Differential scanning calorimeter (DSC test) Dynamic cut-through Notch propagation Scrape abrasion 201 a 202 a - Applicable to code 006 E
23、N 2234 Ti = (310 f 5) “C T2 = (450 I 5) “C Applicable EN 2234 Temperature: (310 f 5) “C Applicable Temperature: (310 f 5) “C Maximum shrinkage: 13 mm Applicable EN 2234 Temperature: (310 k 5) “C Applicable EN 2234 Temperature: 260 “C Max. shrinkage: 13 mm Applicable EN 2234 Applicable EN 2234 Temper
24、ature: (- 55 f 2) “C Applicable EN 2234 Extinction time: 3 s Applicable Load 170 g for 004,340 g for 2 006 Applicable Temperature: (180 f 5) “C - 336 h Applicable EN 2234.40 O00 h at 260 “C Applicable EN 2234 Not applicable Applicable Not applicable Applicable to codes 004 to 020 included Temperatur
25、e 260 “C I hour. See table 3. Applicable to codes 004 to 020 included Depth notch: 0,25 mm Applicable to codes 004 to 020 included See table 3. 301 a 302 a 302 a 303 a 304 a 305 a 401 a 402 a 403 a 404 a 405 a 406 a 407 a 408 409 a 410 a 411 a 412 a 413 a 414 a 501 a 502 a 503 a continued Electrical
26、 resistance per unit length Voltage proof test - Immersion test I Amlicable EN 2234 Page 6 prEN 2346-004: 2001 Designation of the test Torsion Tensile test on conductors and strands Plating continuity Adherence of plating Plating thickness EN 3475- Remarks Applicable to codes 004 to 020 included T3
27、= (260 f 5) “C T4 = (275 f 5) “C Applicable Applicable Applicable Applicable 504 a - Not applicable 505 a 512 a 601 a 602 a 506 a Flexure endurance Smoke density Toxicity 507 a 508 a 702 a 703 a 704 a 705 a 706 Table 2 (concluded) Braid sreen pushback capability Not applicable Permanence of manufact
28、urers marking Applicable Flexibility Not applicable Contrast measurement Laser markability Applicable Applicable 2 50 % to single core Not applicable to multicore I 509 a I Solderability I 510a Tensile strength and elongation of extruded insulation, sheath and jacket material I 51 1 a 1 Cable to cab
29、le abrasion 603 a Resistance to wet ark arc tracking 605 a Wet short circuit test 701 Strippability and adherence of insulation to the conductor Not applicable Not applicable Not applicable Not applicable Not applicable Applicable Wire damage I70 mm 75 % of collateral wires must pass the wet dielect
30、ric voltage proof test Applicable Wire damage I70 mm 75 % of collateral wires must pass the wet dielectric voltage proof test Applicable Wire damaae I70 mm (EN 3475-302) (EN 3475-302) Strippability applicable Adherence not applicable Page 7 prEN 2346-004: 2001 Code number 004 006 O10 012 020 Table 3
31、 EN 3475-503 EN 3475-501 Nominal cross section Scrape abrasion Dynamic cut-through mm2 20 “C 260 “C 0,4 45 6 3 0,6 55 6 335 1 ,o 70 7 4 192 a5 7 4 210 95 8 4 Description block FIRE RESISTANT ELECTRICAL CABLE 7 Quality assurance 0 SeeEN3042. Identity block EN2346-004A004 8 Designation EXAMPLE: I- Number of this standard Code for number of cores (see EN 2346-002, table 1) Code for nominal section (see table 1) 9 Identification and marking See EN 2346-002. 10 Packaging, labelling and delivery lengths See EN 2234. I1 Technical specification See EN 2234.
