Bsi bs en 04681 002 2012

BS EN 4681-002:2012 BSI Standards Publication Aerospace series — Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium Part 002: General BS EN 4681-002:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 4681-002:2012 The UK participation in its preparation was entrusted to Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology A list of organizations represented on this committee can be obtained on request 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 2012 ISBN 978 580 77223 ICS 49.060 Compliance with a British 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 publication Date Text affected BS EN 4681-002:2012 EN 4681-002 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM October 2012 ICS 49.060 English Version Aerospace series - Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium - Part 002: General Série aérospatiale - Câbles électriques, d'usage général, avec conducteurs en aluminium ou en aluminium chemisé cuivre - Partie 002: Généralités 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 Internal 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 any 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 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, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 4681-002:2012: E BS EN 4681-002:2012 EN 4681-002:2012 (E) Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms, definitions and symbols 5 4 List of product standards .5 5 5.1 5.2 Materials and construction 5 Materials 5 Construction 5 6 6.1 6.2 6.3 6.4 Identification and marking 7 Single core 8 Multicore 8 Designation 10 Manufacturer identification marking 10 7 Technical specification 10 BS EN 4681-002:2012 EN 4681-002:2012 (E) Foreword This document (EN 4681-002:2012) has been prepared by the Aerospace 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 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 possibility 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 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, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 4681-002:2012 EN 4681-002:2012 (E) Scope This European Standard specifies the list of product standards and common characteristics of electrical cables for general purpose with conductors in aluminium or copper-clad aluminium, intended for installation in aircraft electrical systems 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 applies 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 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 series — Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium — Part 003: AD family, single UV laser printable — Product standard 2) 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 — Product standard 2) 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 2) EN 4681-006, Aerospace series — Cables, electric, general purpose, with conductors in aluminium or copperclad aluminium — Part 006: AZA family, single and multicore assembly for use in low pressure atmosphere — Product standard 2) ISO 2574, Aircraft — Electrical cables — Identification marking TR 4684, Aerospace series — Electrical Technology 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 publication of this standard (www.asd-stan.org) BS EN 4681-002:2012 EN 4681-002:2012 (E) Terms, definitions and symbols For the purposes of this standard, the terms, definitions and symbols given in TR 4684 apply List of product standards EN 4681-003, Aerospace series — Cables, electric, general purpose, 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 — Product 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 conductors in aluminium or copper-clad aluminium — Part 006: AZA family, single and multicore assembly for use in low pressure atmosphere — Product standard Materials and construction 5.1 Materials These cable conductors shall be made of aluminium or copper clad aluminium and nickel-plated according 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 Table Number of cores Code A B C D E Factor for overall dimensions 2,00 2,15 2,40 2,70 For two cores or more:  The lay length of the outer lay shall not be 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 4681-002:2012 EN 4681-002:2012 (E) Where filler cores are used, on (four) cores and (five) cores assembly, materials shall be compliant with the operating temperatures  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 Table — Colour code Colour a Code a 5.2.3 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) For information: international colour code Colour coding of unscreened, multicore cables See Table 3, differentiation with copper cables shall be given by markings as defined in Clause Table — Code P Number of cores in cables NOTE Colours (light colours acceptable) Red Blue Red Blue Yellow Red Blue Yellow Green Red Blue Yellow Green White Jacket (if requested): Light grey, manufacturer markings according to Table BS EN 4681-002:2012 EN 4681-002:2012 (E) Table — Colour of manufacturer identification markings Colours Nominal conductor cross-section mm 24 0,6 20 1,2 16 12 22 0,15 26 0,4 22 18 14 10 14 28 107 000 Green Black 0,25 Blue a AWG a AWG = Closest American Wire Gage Identification and marking The identification and marking 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 (gauge 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 4681-002:2012 EN 4681-002:2012 (E) 6.1 Single core For differentiation with copper cables, colour of manufacturer identification markings shall be in accordance with Table for size 24 to size 4/0 Table — Colour of manufacturer identification markings Family Colours AD Orange or red AZ — For size 22, some dashes are positioned between adjacent manufacturer markings NOTE 6.2 From size 24 to size 12, dark spots will be added during markings applied by the users Multicore For differentiation with copper cables, colour of manufacturer identification markings shall be in accordance with Table for core size 24 to size 4/0 From core size 24 to size 4, in addition to cable manufacturer identification markings, darks spots are positioned all along according to the definition described hereafter and in Figure and Table NOTE These dark spots are necessary to facilitate further manufacturing operations Figure BS EN 4681-002:2012 EN 4681-002:2012 (E) Table — Spots dimensions Dimensions in millimetres Nominal conductor cross-section mm a AWG a P L1 L2 D ± 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 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 0,5 0,5 ± 0,02 0,5 ± 0,02 14 7,8 + 0,2 − 0,1 0,5 0,5 ± 0,02 0,5 ± 0,02 12 7,8 + 0,2 − 0,1 0,5 0,5 ± 0,02 0,5 ± 0,02 10 18,0 ± 0,2 0,6 1,8 ± 0,04 0,5 ± 0,04 22,5 ± 0,2 0,6 1,8 ± 0,04 0,5 ± 0,04 14 22,0 ± 0,2 0,6 1,8 ± 0,04 0,5 ± 0,04 22 22,5 ± 0,2 0,6 1,8 ± 0,04 0,5 ± 0,04 AWG = Closest American Wire Gage BS EN 4681-002:2012 EN 4681-002:2012 (E) 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 the following example, see Figure 2: EN AD A 20 FR A 09 Reference to EN standard cable spaces 4) Type code Specific code Gauge code Manufacturer country code Manufacturer code Year of manufacturing Figure The cables (single core or jacketed cable) shall be capable of being printed with the user-applied markings according to EN 3838 Technical specification See EN 4681-001 4) 10 Spaces are mandatory, with a possible exception for the second one This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Revisions We bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions Our British Standards and other publications are updated by amendment or revision The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our open consultation process Organizations of all sizes and across all sectors choose standards to help them achieve their goals Information on standards We 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