1、STD-AECMA PREN 271-007-ENGL 1775 LO12311 0032853 5TT W Edition approved for publication 1995-03-31 AECMA STANDARD NORME AECMA AECMA NORM Comments should be sent within six months after the date of publication to AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FR
2、ANCE prEN 27 14-007 Edition P 1 March 1995 DITE PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL Al!ROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - TAI. (1) 47.36.98.76 ICs : Descriptors : ENGLISH VERSION Aerospace series Cables, electrical, sing
3、le and multicore for general purpose Operating temperatures between - 55 OC and 260 OC Part 007 : Screened (spiral) and jacketed, UV laser printable Product standard Srie arospatiale Cbles, lectriques, mono et multiconducteurs dusage gnral Tempratures de fonctionnement comprises entre - 55 OC et 260
4、 OC Partie 007 : Blinds (guips) et gains, marquables au laser UV Norme de produit Luft- und Raumfahrt Leitungen, elektrisch, ein- und mehradrig, fr allgemeine Verwendung Betriebstemperaturen zwischen - 55 OC und 260 OC Teil 007 : Geschirmt (Umseilung) und ummantelt, UV Laser bedruckbar Produktnorm T
5、his “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial. It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee f
6、ollowing comment by the Member countries. 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 signature of the AECM
7、A Standard Checking Centre INPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-J
8、acques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX C 2 Chairman M. Pezzetta aecma 1995 STD-AECMA PREN 2714-007-ENGL 1795 = 1012311 00128511 436 Page 3 prEN 271 4-007 : 1995 1 Scope This standard specifies the characteristics of UV laser printable, single and multicore screened (spiral) and jacketed
9、electrical cables for use in the on-board electrical systems of aircraft, at operating temperatures between - 55 OC and 260 OC. It shall also be possible to mark these cables by hot stamp printing or ink jet printing. These markings shall be in accordance with EN 3838. 2 Normative references EN 2083
10、 EN 2235 Copper and copper alloy conductors for electrical cables - Aerospace series Aerospace series - Cables, electrical, single and multicore, screened and jacketed - Technical specification 2, Aerospace series - Cables, electrical, for general purpose - Operating temperatures between - 55 OC and
11、 260 OC - Part 003 : Ink jet printable - Product standard z, EN 2714-002 Aerospace series - Cables, electrical, single and multicore for general purpose - Operating temperatures between - 55 OC and 260 OC - Part 002 : Screened and jacketed - General 2, EN 3042 Aerospace series - Quality assurance -
12、EN aerospace products - Qualification procedure EN 3475-loo* Aerospace series - Cables, electrical, aircraft use - Test methods - Part 100 : General 2, EN 3838 Aerospace series - Requirements and tests on uset-applied markings on aircraft electrical cables 2, EN 2267-003 3 Definitions and symbols Se
13、e EN 3475-100 4 Materials and construction 4.1 Materials These cables shall consist of the following : - cores according to EN 2267-003; - number of cores 1 to 4. 2 to 4-core cables shall be twisted together according to EN 2235. Filler cores shall not be permitted. * And all its parts quoted in tab
14、le 2 1) Published as AECMA Standard at the date of publication of this standard 2) Published as AECMA Prestandard at the date of publication of this standard Previous page is blank Page 4 prEN 2714-007 : 1995 Linear resistance at 20 OC 1 Q/km AWG *) Screen : - nickel-plated copper stranded spiral sc
15、reen; - for dimensions of strands, see table 1; - material according to EN 2083, tests according to EN 3475-100; - construction according to EN 2235. - layer of polyimide with total wall thickness (nominal value) of 30 pm, coated on both sides with a layer 2,5 pm thick of fluorocarbon; - direction o
16、f winding immaterial - overlap 25 % min. ; second layer of polytetrafluoroethylene 0,07 mm thick running in opposite direction to first layer with 51 % min. overlap without top coat or 47 % min. with top coat; - a top coat may be applied. Outer jacket : Screen strands External nominal I dia;ter diam
17、eter 4.2 Construction See EN 2083 and table 1 max. 160,O Table 1 mm max. 0,08 i ,62 Number 3f cores 114,O 60,O 33,2 21,l 14,5 10,9 68 42 4,1 165,OO 11 7,OO 61,70 34,lO 21,70 14,90 11,20 6,99 4,32 4,22 165,OO 1 17,OO 61,70 34,l O 21,70 14,90 11,20 6,99 165,O 117,O 61,7 34,l 21.7 14,9 11.2 3 0,08 1,72
18、 0,08 1,88 0,08 2,12 0,08 2,38 0,lO 2,81 0,IO 3,0a 0,lO 3,57 0,12 4,25 Oll 2 4,45 0,08 2,64 0,08 2,85 0,08 3,20 0,lO 3,69 0,l o 4,21 0,12 5,03 Oll 5 5,62 0,20 6,72 0,20 8,00 0,20 8,30 0,08 2,79 0,lO 3,06 0,lO 3,39 0,12 3,96 0,12 4,52 0,15 5,42 0,15 6,00 0,20 7,15 0,lO 3,08 0,lO 3,34 0,lO 3,71 0,12 4
19、,34 0,12 4,97 Oll 5 6,00 0.20 6.70 4 Code for nominal section O0 1 002 004 006 o1 o o1 2 020 030 050 051 O0 1 002 004 006 o1 o o1 2 020 030 050 051 l) O0 1 002 004 006 o1 o o1 2 020 030 O0 1 002 004 006 O10 o1 2 020 Nominal section mm2 0,15 0,25 0,4 0,6 1 112 2 3 5 5 0,15 0,25 0,4 0,6 1 12 2 3 5 5 O
20、ll 5 0,25 0,4 O,6 1 12 2 3 0,15 0,25 0,4 0,6 1 12 2 26 24 22 20 18 16 14 12 10 10 26 24 22 20 18 16 14 12 10 10 26 24 22 20 18 16 14 12 26 24 22 20 18 16 14 Mass kglkm max. 6,6 7,5 9,5 13,0 17,6 24,8 30,7 44,4 68,0 72,6 11,8 13,6 18,0 25,2 34,0 48,6 63,2 96,7 146,0 151,0 15,6 19,1 24,5 36,3 49,3 71,
21、3 89,2 137,0 19,7 31 ,I 45,8 62,7 91 ,o 120.4 23,a 1) Flexible construction which may be used as an alternative 2) AWG = Closest American Wire Gage STD-AECMA PREN 27Lq-007-ENGL 1995 LIIL2311 OOL285b 209 m Page 5 prEN 2714-007 : 1995 4.3 See EN 271 4-002 Colour coding of cores and jacket 5 Required c
22、haracteristics According to EN 2235 and EN 3475-100 See table 2 Table 2 EN 3475- 201 Test Details 4pplicable Visual examination 202 Mass Applicable ; see table 1 203 Dimensions Applicable ; see table 1 30 1 Electrical resistance per unit length Voltage proof test Insulation resistance Applicable ; s
23、ee table 1 Applicable Applicable 302 303 304 Surface resistance Applicable 305 Not applicable Applicable Temperature (310 f 5) OC Overload resistance Accelerated ageing 40 1 402 Shrinkage and delamination Applicable Temperature (290 f 5) OC Maximum shrinkage at each end of cable : jacket 2 mm, core
24、insulation, see EN 2267-003 403 Delamination and blocking Applicable Temperature (310 f 5) OC 404 Thermal shock Applicable Temperature (290 f 5) OC Maximum shrinkage at each end of cable : jacket 2 mm, core insulation, see EN 2267-003 405 Applicable Applicable Bending at ambient temperature Cold ben
25、d test 406 _ Flammability Applicable Extinguishing time : 3 s max. Not applicable 407 408 Fire resistance 409 Air-excluded ageing Not applicable I 41 O Thermal endurance Applicable 40 O00 h (temperature 260 OC) Resistance to fluids Dynamic cut-through 41 1 501 502 Notch propagation Applicable Notch
26、depth : 40 pm I (continued) STD*AECMA PREN 2714-007-ENGL 1775 LO1231L 0012857 145 H Page 6 prEN 2714-007 : 1995 Table 2 (concluded) EN 3475- 503 504 505 506 507 508 I 509 I 601 I Test Scrape abrasion Torsi on Tensile test on concentric conductors and strands Plating continuity Adherence of plating P
27、lating thickness Solderability Smoke density Toxicity Resistance to wet arc tracking and electric arc propagation Resistance to dry arc tracking and electric arc propagation Strippability and adherence of insulation to the conductor Braid screen pushback capability Permanence of manufacturers markin
28、g Details Applicable Test force on needle for cables 0,15 mm2 to 0,60 mm* = 8 N 1,00 mm2 to 1,20 mm* = 10 N 2,OO mm2 to 5,OO mm2 = 12 N Not applicable Applicable Applicable Applicable Applicable Not applicable I Applicable Applicable Not applicable Not applicable Applicable Not applicable Applicable
29、 I 6 Quality assurance See EN 3042 7 Designation EXAMPLE : Description block I Identity block CABLE, ELECTRICAL I EN2714-007B002 Number of this standard Code letter for number of cores (see EN 271 4-002, table 1) Code for nominal section (see table 1) Code letter for colour coding of cores and jacke
30、t (see EN 2714-002, tables 2 to 8) NOTE : If necessary, the code I9005 shall be placed between the description block and the identity block. STD-AECMA PREN 2714-007-ENGL 1775 m LO12311 0012858 OB1 Page 7 prEN 2714-007 : 1995 8 Identification and marking See EN 271 4-002 9 See EN 2235 Packaging, labelling and delivery lengths 1 O Technical specification See EN 2235
