ASD-STAN PREN 4681-005-2016 Aerospace series Cables electric general purpose with conductors in aluminium or copper-clad aluminium Part 005 AZ family single for use in low pressure.pdf

1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4681-005 Edition P 2 October 2016 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.org ICS: Supersedes edition P 1 of

2、April 2014 and will supersede EN 4681-005:2015 Descriptors: ENGLISH VERSION Aerospace series Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 005: AZ family, single, for use in low pressure atmosphere Product standard Luft- und Raumfahrt Elektrische Leitu

3、ngen, zur allgemeinen Verwendung, mit Leitern aus Aluminium oder kupferbeschichtetem Aluminium Teil 005: AZ-Familie, einadrig, zur Anwendung bei niedrigem Luftdruck Produktnorm Srie arospatiale Cbles, lectriques, dusage gnral, avec conducteurs en aluminium ou en aluminium chemis cuivre Partie 005 :

4、Famille AZ, fil simple, pour emploi en basse pression Norme de produit This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace In

5、dustry. It has been technically approved by the experts of the concerned Domain following member 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-identifica

6、tion of the standard. After examination and review by users and formal agreement of ASD-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 have then

7、 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. ASD-STAN Technical Committee approves that: “This document is published by ASD-STAN for the needs of the European Aerospace Industry. The use o

8、f this standard is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-STAN reviews each standard and technical report at least every five years at which time it may be rev

9、ised, reaffirmed, stabilized or cancelled. ASD-STAN invites you to send your written comments or any suggestions that may arise. All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, phot

10、ocopying, recording, or otherwise, without prior written permission of ASD-STAN. Order details: E-mail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1st October 2016 Comments should be sent within six months after the date of publication to ASD-STAN Electri

11、cal Domain Copyright 2016 ASD-STAN prEN 4681-005:2016 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Terms, definitions and symbols . 3 4 Materials and construction . 4 5 Required characteristics 5 6 Quality assurance 7 7 Designation . 8 8 Identification and marking 9 9 Packagin

12、g, labelling and delivery lengths 9 10 Technical specification . 9 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this

13、standard has received approval for Publication. prEN 4681-005:2016 (E) 3 1 Scope This standard specifies the characteristics of electrical wires AZ family for use in the on board: 115 V (phase to neutral) or 200 V (phase to phase) electrical network of aircraft. 230 V (phase to neutral) or 400 V (ph

14、ase to phase) electrical network of aircraft and particularly use in non-pressurized areas. This cable family is used at operating temperature between 65 C and 180 C. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensabl

15、e for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 3475-100 1) Aerospace series Cables, electrical, aircraft use Test methods Part 100: General EN 3719, Aerospace se

16、ries Aluminium or aluminium alloy conductors for electrical cables Product standard EN 3838, Aerospace series Requirements and tests on user-applied markings on aircraft electrical cables EN 4681-001, Aerospace series Cables, electric, general purpose, with conductors in aluminium or copper-clad alu

17、minium Part 001: Technical specification EN 4681-002, Aerospace series Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 002: General EN 9133, Aerospace series Quality Management Systems Qualification Procedure for Aerospace Standard Products TR 6058, Aero

18、space series Cable code identification list 2) 3 Terms, definitions and symbols For the purposes of this document, the terms, definitions and symbols given in EN 3475-100 apply. 1) All its parts quoted in this Standard. 2) Published as ASD-STAN Technical Report at the date of publication of this sta

19、ndard. (http:/www.asd-stan.org/) prEN 4681-005:2016 (E) 4 4 Materials and construction 4.1 Materials Conductor: These cable conductors shall be made of: Nickel plated aluminium alloy (code D) according to EN 3719 for 280 to 850 section codes. Un-plated aluminium alloy (code A) according to EN 3719 f

20、or 280 to 850 section codes. Insulation: All size codes shall be defined to satisfy all required characteristics of Clause 5. The use of foamed insulation material is forbidden. To minimize partial discharges effect: size and number of cavities (gas trap) inside the insulation shall be as low as pos

21、sible. at minimum bend radius there shall be no wrinkles outside the insulation (EN 3475-405). Minimum bend radius shall be in accordance with bending diameter given in Table 4 of the technical specification EN 4681-001. 4.2 Construction See EN 3719 and Table 1. Table 1 Code for nominal section Nomi

22、nal section AWG a Elastic limit b Breaking load b Linear resistance at 20 C External diameter Mass N N /km mm mm kg/km mm2 min. min. max. min. max. max. 280 28 3 1,18 7,5 8,4 109 420 42 1 0,75 9,3 10,2 175 680 68 00 0,43 12,1 13,0 271 a AWG: closest American Wire Gauge. b The value is for the finish

23、ed wire (conductor insulation). The elastic limit is defined as the elastic limit of the finished wire for a 0,2 % wire elongation. 4.3 Number of cores This standard specifies single cores. 4.4 Colour coding of cores See EN 4681-002. prEN 4681-005:2016 (E) 5 5 Required characteristics According to E

24、N 4681-001 and EN 3475-100. See Table 2. Table 2 (1 of 3) EN 3475- Test Details 201 Visual examination Applicable 202 Mass Applicable, see Table 1. 203 Dimensions Applicable, see 4.2 and Table 1. 301 Ohmic resistance per unit length Applicable with: immersion test 2,5 kV r.m.s (non delivered samples

25、), dry spark test 2,5 kV r.m.s, dry impulse test 4,0 kV r.m.s. 302 Voltage proof test Applicable 303 Insulation resistance Applicable 304 Surface resistance Applicable 305 Overload resistance Not applicable 306 Continuity of conductors Applicable 307 Corona extinction voltage Applicable prior to eac

26、h delivery Method B at 45.000 feet (145 mbar) and 150 C PDIV 566 Vr.m.s. (800 V peak), PDEV 509 Vr.m.s. (720 V peak). 401 Accelerated ageing Applicable Temperature (230 5) C 402 Shrinkage and delamination Applicable Temperature (230 5) C Maximum shrinkage at each end of cable: 28 mm2 to 34 mm2: 2,0

27、mm, 42 mm2 to 68 mm2: 2,5 mm. 403 Delamination and blocking Applicable temperature (230 5) C 404 Thermal shock Applicable but ( 65 2) C instead of ( 55 2) C Temperature (180 5) C Maximum shrinkage at each end of cable: 28 mm2 to 34 mm2: 2,0 mm, 42 mm2 to 68 mm2: 2,5 mm. 405 Bending at ambient temper

28、ature Applicable 406 Cold bend test Applicable Temperature ( 65 2) C 407 Flammability Applicable Extinguishing time: 3 s max. prEN 4681-005:2016 (E) 6 Table 2 (2 of 3) EN 3475- Test Details 408 Fire resistance Not applicable 409 Air-excluded ageing Not applicable 410 Thermal endurance (insulation) A

29、pplicable 10 000 h at 180 C with curve extrapolation 140 000 h at 150 C with curve reading 411 Resistance to fluids Applicable 412 Humidity resistance Applicable Method B Temperature (95 5) C Duration 360 h 413 Wrap back test Applicable 414 Differential scanning calorimeter (DSC test) Applicable (on

30、ly if PTFE in the construction) 415 Rapid change of temperature Not applicable 416 Thermal stability Not applicable 417 Fire resistance of cables confined inside a harness Not applicable 418 Thermal endurance for conductors Not applicable 501 Dynamic cut-through Not applicable 502 Notch propagation

31、Applicable notch depth: 40 m 503 Scrape abrasion Applicable Test force on needle for cables 28 mm2 to 68 mm2 15 N 504 Torsion Applicable T3 (180 5) C; T4 (230 5) C 505 Tensile test on conductors and strands Applicable For qualification: See EN 3719 for tensile and elongation requirements for individ

32、ual strand requirements. Measurement shall be done on minimum 10 samples in total taken from the conductor in (5 samples) outer and (5 samples) inner layers. Median test results of inner and outer strand measurements shall be compliant with the EN 3719 requirements (including elongation). 506 Platin

33、g continuity Applicable Except for conductor with code A as per EN 3719. 507 Adherence of plating Applicable Except for conductor with code A as per EN 3719. 508 Plating thickness Applicable (Test methods 4 and 5 are preferred) Except for conductor with code A as per EN 3719. prEN 4681-005:2016 (E)

34、7 Table 2 (3 of 3) EN 3475- Test Details 509 Solderability Not applicable 510 Tensile strength and elongation of extruded insulation, sheath and jacket material Not applicable 511 Cable-to-cable abrasion Not applicable 512 Flexure endurance Not applicable 513 Deformation resistance (Installation wit

35、h plastic cable ties) Not applicable 514 Porosity of copper cladding on aluminium strands Not applicable 601 Smoke density Applicable 602 Toxicity Applicable 603 Resistance to wet arc tracking Not applicable 604 Resistance to dry arc propagation Not applicable 605 Wet short circuit test Not applicab

36、le 701 Strippability and adherence of insulation to the conductor Applicable 702 Screen pushback capability Not applicable 703 Permanence of manufacturers marking Applicable 704 Flexibility Applicable code Maximum force: 28 mm: 15 N, 42 mm: 24 N, 68 mm: 38 N. 705 Contrast measurement Not applicable

37、706 Laser markability Not applicable EN 3838 Laser marking Not applicable 6 Quality assurance See EN 9133. prEN 4681-005:2016 (E) 8 7 Designation 7.1 Identification EXAMPLE Description block CABLE, ELECTRICAL Identity block EN4681-005A420K1 A Number of this standard Code letter for number of cores (

38、see EN 4681-002) Code for nominal section (see Table 1) Code letter for colour coding of cores (see EN 4681-002) Conductor material (see 4.1): - Blank: Nickel plated aluminium conductor (code D as per EN 3719) - 1: Un-plated aluminium alloy (code A as per EN 3719) Conductor construction (see Table 2

39、 or 3 EN 3719): - Blank : Conductor with strand 0,51 mm - A : Conductor with strand 0,37 mm NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 7.2 Type code (for short designation) Code designation in accordance with TR 6058, see Table 3. Table 3

40、EN reference Code designation Single core EN4681-005A AZ prEN 4681-005:2016 (E) 9 8 Identification and marking See EN 4681-002. For traceability perspective, in order to differentiate the cables with un-plated aluminium alloy (code A) conductor from nickel plated aluminium conductor (code D), the tr

41、iangle symbol will be added at the end of manufacturing marking (as per see Figure 1) for cable with un-plated aluminium alloy (code A) conductor only. See Figure 1. Cable marking for un-plated aluminium alloy conductor (code A) Cable marking for nickel plated aluminium alloy conductor (code D) Figure 1 Marking on cable 9 Packaging, labelling and delivery lengths See EN 4681-001. 10 Technical specification See EN 4681-001, except the qualification cable size shall be 420.