1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4681-002:2012Aerospace series Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminiumPart 002: GeneralBS EN 4681-002:2012 BRITISH STANDARDN
2、ational forewordThis British Standard is the UK implementation of EN 4681-002:2012. The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optic technology.A list of organizations represented on this committee can be obtained on requ
3、est to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012ISBN 978 0 580 77223 8 ICS 49.060 Compliance with a British
4、Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 4681-002:2012EUROPEAN STANDARD NORME EUROPENNE EUROPIS
5、CHE NORM EN 4681-002 October 2012 ICS 49.060 English Version Aerospace series - Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium - Part 002: General Srie arospatiale - Cbles lectriques, dusage gnral, avec conducteurs en aluminium ou en aluminium chemis cuivre
6、- Partie 002: Gnralits Luft- und Raumfahrt - Elektrische Leitungen, zur allgemeinen Verwendung, mit Leitern aus Aluminium oder kupferbeschichtetem Aluminium - Teil 002: Allgemeines This European Standard was approved by CEN on 25 February 2012. CEN members are bound to comply with the CEN/CENELEC In
7、ternal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to a
8、ny CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official
9、versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norw
10、ay, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in a
11、ny form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4681-002:2012: EBS EN 4681-002:2012EN 4681-002:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms, definitions and symbols .54 List of product standards .55 Materials and construction .55.1 Mat
12、erials .55.2 Construction .56 Identification and marking 76.1 Single core 86.2 Multicore .86.3 Designation . 106.4 Manufacturer identification marking. 107 Technical specification 10BS EN 4681-002:2012EN 4681-002:2012 (E) 3 Foreword This document (EN 4681-002:2012) has been prepared by the Aerospace
13、 and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to
14、its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2013, and conflicting national standards shall be withdrawn at the latest by April 2013. Attention is drawn to the po
15、ssibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries
16、 are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
17、 Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4681-002:2012EN 4681-002:2012 (E) 4 1 Scope This European Standard specifies the list of product standards and common characteristics of electrical cables for general purpose with conductors in a
18、luminium or copper-clad aluminium, intended for installation in aircraft electrical systems. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applie
19、s. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 3719, Aerospace series Aluminium or aluminium alloy conductors for electrical cables Product standard EN 3838, Aerospace series Requirements and tests on user-applied markings on aircraft
20、electrical cables EN 4651, Aerospace series Copper-clad aluminium alloy conductors for electrical cables Product standard 1)EN 4681-001, Aerospace series Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 001: Technical specification EN 4681-003, Aerospace
21、series Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 003: AD family, single UV laser printable Product standard2)EN 4681-004, Aerospace series Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 004: ADA family
22、, single and multicore assembly Product standard2)EN 4681-005, Aerospace series Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 005: AZ family, single UV laser printable for use in low pressure atmosphere Product standard2)EN 4681-006, Aerospace series C
23、ables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 006: AZA family, single and multicore assembly for use in low pressure atmosphere Product standard2)ISO 2574, Aircraft Electrical cables Identification marking TR 4684, Aerospace series Electrical Technology
24、 and component definition 2)TR 6058, Aerospace series Cable code identification list 3)1)Published as ASD-STAN Prestandard at the date of publication of this standard (www.asd-stan.org).2)In study at the date of publication of this standard.3)Published as ASD-STAN Technical Report at the date of pub
25、lication of this standard (www.asd-stan.org).BS EN 4681-002:2012EN 4681-002:2012 (E) 5 3 Terms, definitions and symbols For the purposes of this standard, the terms, definitions and symbols given in TR 4684 apply. 4 List of product standards EN 4681-003, Aerospace series Cables, electric, general pu
26、rpose, with conductors in aluminium or copper-clad aluminium Part 003: AD family, single UV laser printable Product standard EN 4681-004, Aerospace series Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 004: ADA family, single and multicore assembly Prod
27、uct standard EN 4681-005, Aerospace series Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 005: AZ family, single UV laser printable for use in low pressure atmosphere Product standard EN 4681-006, Aerospace series Cables, electric, general purpose, with
28、 conductors in aluminium or copper-clad aluminium Part 006: AZA family, single and multicore assembly for use in low pressure atmosphere Product standard 5 Materials and construction 5.1 Materials These cable conductors shall be made of aluminium or copper clad aluminium and nickel-plated according
29、to EN 3719 or EN 4651 code D (except otherwise specified in product standards). 5.2 Construction 5.2.1 Number of cores See Table 1. Table 1 Number of cores 1 2 3 4 5 Code A B C D E Factor for overall dimensions 1 2,00 2,15 2,40 2,70 For two cores or more: The lay length of the outer lay shall not be
30、 less than eight times and not more than 16 times the nominal diameter of the cabled cores. The core shall not be spliced. BS EN 4681-002:2012EN 4681-002:2012 (E) 6 Where filler cores are used, on 4 (four) cores and 5 (five) cores assembly, materials shall be compliant with the operating temperature
31、s. factor for mass: 1,03; factor for ohmic resistance: 1,03. 5.2.2 Colour coding of single core cables For differentiation with copper cables, all single core cables shall be of Light GREY colour code K as defined in Table 2, and markings shall be as defined in Clause 6. Table 2 Colour code Code Col
32、our a A Red (2) B Blue (6) C Yellow (4) D Green (5) E White (9) F Black (0) G Brown (1) H Orange (3) J Violet (7) K Grey (8) aFor information: international colour code. 5.2.3 Colour coding of unscreened, multicore cables See Table 3, differentiation with copper cables shall be given by markings as
33、defined in Clause 6. Table 3 Code P Number of cores in cables Colours (light colours acceptable) 2 Red Blue 3 Red Blue Yellow 4 Red Blue Yellow Green 5 Red Blue Yellow Green White NOTE Jacket (if requested): Light grey, manufacturer markings according to Table 4. BS EN 4681-002:2012EN 4681-002:2012
34、(E) 7 Table 4 Colour of manufacturer identification markings Colours Nominal conductor cross-section AWG amm2Blue 0,25 24 0,6 201,2 16 3 129 8 22 4 Green 0,15 26 0,4 221 18 2 145 10 14 6 Black 28 3 107 0 000 aAWG = Closest American Wire Gage. 6 Identification and marking The identification and marki
35、ng of cables by the manufacturer shall be in accordance with ISO 2574 and this standard. As the designation, required for orders, is generally too long for use in electrical drawings, a shorter cross designation (without colour information) is given in TR 6058 plus the corresponding nearest AWG (gau
36、ge code). To facilitate further manufacturing operations and differentiate these aluminium cables from copper cables, markings are necessary on both core(s) and jacket (when there is a jacket). Dark spots are not necessary on jacket. BS EN 4681-002:2012EN 4681-002:2012 (E) 8 6.1 Single core For diff
37、erentiation with copper cables, colour of manufacturer identification markings shall be in accordance with Table 5 for size 24 to size 4/0. Table 5 Colour of manufacturer identification markings Family Colours AD Orange or red AZ For size 22, some dashes are positioned between adjacent manufacturer
38、markings. NOTE From size 24 to size 12, dark spots will be added during markings applied by the users. 6.2 Multicore For differentiation with copper cables, colour of manufacturer identification markings shall be in accordance with Table 4 for core size 24 to size 4/0. From core size 24 to size 4, i
39、n addition to cable manufacturer identification markings, darks spots are positioned all along according to the definition described hereafter and in Figure 1 and Table 6. NOTE These dark spots are necessary to facilitate further manufacturing operations. Figure 1 BS EN 4681-002:2012EN 4681-002:2012
40、 (E) 9 Table 6 Spots dimensions Dimensions in millimetres Nominal conductor cross-section AWG a P L1L2D mm2 0,05 0,25 24 6,6 + 0,2 0,1 0,5 0,5 0,02 0,5 0,02 0,4 22 6,6+ 0,2 0,1 0,5 0,5 0,02 0,5 0,02 0,6 20 6,6+ 0,2 0,1 0,5 0,5 0,02 0,5 0,02 1 18 6,6+ 0,2 0,1 0,5 0,5 0,02 0,5 0,02 1,2 16 7,8+ 0,2 0,1
41、 0,5 0,5 0,02 0,5 0,02 2 14 7,8+ 0,2 0,1 0,5 0,5 0,02 0,5 0,02 3 12 7,8+ 0,2 0,1 0,5 0,5 0,02 0,5 0,02 5 10 18,0 0,2 0,6 1,8 0,04 0,5 0,04 9 8 22,5 0,2 0,6 1,8 0,04 0,5 0,04 14 6 22,0 0,2 0,6 1,8 0,04 0,5 0,04 22 4 22,5 0,2 0,6 1,8 0,04 0,5 0,04 aAWG = Closest American Wire Gage. BS EN 4681-002:2012
42、EN 4681-002:2012 (E) 10 6.3 Designation EXAMPLES Single wire: designation EN4681-003A004K Cross reference: AD 22 Pair: designation EN4681-004B006P Cross reference: ADB 20 6.4 Manufacturer identification marking This shorter designation is used for cable and manufacturer identification marking as in
43、the following example, see Figure 2: EN AD A 20 FR A 09 Reference to EN standard cable 4 spaces 4)Type code Specific code Gauge code Manufacturer country code Manufacturer code Year of manufacturing Figure 2 The cables (single core or jacketed cable) shall be capable of being printed with the user-a
44、pplied markings according to EN 3838. 7 Technical specification See EN 4681-001. 4) Spaces are mandatory, with a possible exception for the second one. This page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related public
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