1、BRITISH STANDARDBS EN 4608-001:2006Aerospace series Cable, electrical, fire resistant Single and twisted multicore assembly, screened (braided) and jacketed Operating temperatures between 65 C and 260 C Part 001: Technical specificationThe European Standard EN 4608-001:2006 has the status of a Briti
2、sh StandardICS 49.060g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 4608-001:2006This British Standard was published under the authority of t
3、he Standards Policy and Strategy Committee on 31 October 2006 BSI 2006ISBN 0 580 49431 4National forewordThis British Standard was published by BSI. It is the UK implementation of EN 4608-001:2006. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic
4、electrical and fibre optic technology, to Subcommittee ACE/6/-/2, Aerospace Cables.A list of organizations represented on ACE/6/-/2 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 corre
5、ct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4608-001 June 2006 ICS 49.060 English Version Aerospace series - Cable, electrical, fire resis
6、tant - Single and twisted multicore assembly, screened (braided) and jacketed - Operating temperatures between - 65 C and 260 C - Part 001: Technical specification Srie arospatiale - Cbles lectriques blinds rsistant au feu - Simple et multifilaire blind (tresse) gain - Tempratures de fonctionnement
7、comprises entre - 65 C et 260 C - Partie 001 : Spcification technique Luft- und Raumfahrt - Feuerberstndige elecktrische Leitungen - Einzel- und mehradrig verdrillte Leitungen, geschirmt (Geflecht) und ummantelt - Betriebstemperaturen zwischen - 65 C und 260 C - Teil 001: Technische Lieferbedingunge
8、n This European Standard was approved by CEN on 20 April 2006. 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 ref
9、erences concerning such national standards may be obtained on application to the Central Secretariat 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
10、into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuan
11、ia, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 C
12、EN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4608-001:2006: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Materials and construction of cables 5 5 Required characteristics.5 6 Tests me
13、thods6 7 Qualification and acceptance conditions.10 8 Identification, marking . 12 9 Packaging, labelling and delivery length . 12 EN 4608-001:20063 Foreword This European Standard (EN 4608-001:2006) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-ST
14、AN). 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 AECMA, prior to its presentation to CEN. This European Standard shall be given the st
15、atus of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2006, and conflicting national standards shall be withdrawn at the latest by December 2006. Attention is drawn to the possibility that some of the elements of this document may be the
16、 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 organizations of the following countries are bound to implement this European Standard: Austria, Belgiu
17、m, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 4608-001:20064 1 Scope This
18、 document specifies the required characteristics and test procedures for fire resistant or fire proof electrical cables for use in aircraft electrical systems. They shall be operated at a rated AC voltage of 600 VAC, a frequency of maximum 2 000 Hz and a long-term temperature of up to 260 C (ambient
19、 temperature plus temperatures rise in conductor). These cables shall also maintain a specific dielectric strength when they are subjected to a flame of 1 100 C after five minutes (fire resistant) or 15 minutes (fire proof) exposure. 2 Normative references The following referenced documents are indi
20、spensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. These references are not fully applicable. The present specification defines the field of ap
21、plication of each document. ISO 2574, Aircraft Electrical cables Identification marking. EN 2234, Aerospace series Cable, electrical, fire resistant Technical specification. EN 2235, Aerospace series Single and multicore electrical cables, screened and jacketed Technical specification. EN 3475-100*,
22、 Aerospace series Cables, electrical, aircraft use Test methods Part 100: General. EN 3838, Aerospace series Requirements and tests on user-applied markings on aircraft electrical cables. 1)EN 4608-002, Aerospace series Cable, electrical, fire resistant Single and twisted multicore assembly, screene
23、d (braided) and jacketed Operating temperatures between 65 C and 260 C Part 002: General.EN 4608-005, Aerospace series Cable, electrical, fire resistant Single and twisted multicore assembly, screened (braided) and jacketed Operating temperatures between 65 C and 260 C Part 005: DW family lightweigh
24、t two-core gauge 24 for data transmission UV laser printable Product standard.1)EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 3475-10
25、0 apply. *And all parts quoted in Table 1. 1) Published as AECMA Prestandard at the date of publication of this standard. EN 4608-001:20065 4 Materials and construction of cables 4.1 General 4.1.1 Materials The material shall conform to the applicable product standard. The materials used shall have
26、no corrosive effect upon the conductors and screens and shall not be susceptible to attack by mould and other microorganisms. 4.1.2 Individual cores The individual cores shall conform to EN 2234 and applicable product standard. 4.1.3 Construction The construction shall conform to EN 2234. 4.2 Constr
27、uction of cables 4.2.1 Assembly The lay length of the outer layer shall not be less than 8 times and not more than 16 times the nominal diameter of the cabled cores. The cores shall not be spliced. 4.2.2 Screened cables Shielding shall conform to EN 2235. Efficiency of shielding is not required duri
28、ng the flame exposure. 4.3 Colour The colour of the outer layer and stripes shall be in accordance with EN 4608-002. 5 Required characteristics The required characteristics for cables tested according to 6.1 shall conform to the values specified in the product standard or in this specification EN 46
29、08-001:20066 6 Tests methods See Table 1 (Methods to be applied are compliant with EN 3475 specifications quoted hereafter). Table 1 Tests: methods, application, requirements Tests Each delivery No. Description EN 3475- (and/or particulars) Qualificationa( 7.1) On all cables ( 7.2.1 and7.2.2)Prior t
30、o delivery( 7.2.1 and7.2.3)Periodic Every 3 years ( 7.2.4)Requirements (and/or particulars) 6 General 100 X X X X 6.1 Coverage 3 4.2.2 6.2 Spiral screening or braiding angle 3 4.2.2 6.3 Visual examination b201 3 X Marking: 8 6.4 Mass 202 minimum length: 0,5 m 3 X Product standard 6.5 Dimensions (all
31、) b203 3 Product standard - outer diameter X 6.6 Ohmic resistance per unit length 301 3 X Product standard 6.7 Voltage proof test: 302 - immersion test 3 500 V ac - dry test X X 1,5 kV ac - dry impulse test Alternative to dry test X X 5 kV peak voltage - dielectric strength of cores 1,5 kV ac 6.8 In
32、sulation resistance 303 3 For a length of 1 km at (20 2) C X - dry test 1 500 M - immersion test 500 M at (95 2) C - immersion test 1 M 6.9 Surface resistance b304 3 X Minimum 1 250 M.km 6.10 Overload resistance 305 NOT APPLICABLE 6.11 Continuity of conductors 306 APPLICABLE 6.12 Corona extinction v
33、oltage 307 NOT APPLICABLE 6.13 Accelerated ageing 401 Mandrel and test load: Table 2 Temperature: product standard 3 X 6.14 Shrinkage and delamination 402 Temperature: product standard 3 X Shrinkage length: product standard continued EN 4608-001:20067 Table 1 (continued) Tests Each delivery No. Desc
34、ription EN 3475- (and/or particulars) Qualificationa( 7.1) On all cables ( 7.2.1 and7.2.2)Prior to delivery( 7.2.1 and7.2.3)Periodic Every 3 years ( 7.2.4)Requirements (and/or particulars) 6.15 Delamination and blocking 403 Mandrel : Table 2 Temperature: product standard 3 X 6.16 Thermal shock 404 T
35、emperature: product standard 3 X Shrinkage length: Product standard 6.17 Bending at ambient temperature 405 Mandrel : Table 2 3 X 6.18 Cold bend test 406 Mandrel and load: product standard 3 X Product standard 6.19 Flammability 407 Load: product standard3 X Distance burnt and time of flame extinctio
36、n: Product standard 6.20 Fire resistance 408 Load: Table 2 1 per fluid X Without fluid immersion for tests prior to delivery Test duration: product standard 6.21 Air-excluded ageing 409 NOT APPLICABLE 6.22 Thermal endurance 410 NOT APPLICABLE 6.23 Resistance to fluids 411 1 per fluid X Variation of
37、diameter: see product standard 6.24 Humidity resistance 412 NOT APPLICABLE 6.25 Wrap back test 413 NOT APPLICABLE 6.26 Differential scanning calorimeter test (DSC) 414 NOT APPLICABLE 6.27 Rapid change of temperature 415 Not applicable 6.28 Thermal stability 416 Not applicable 6.29 Fire resistance of
38、 cable inside shielded harness 417 3 X Without fluid immersion Test duration: product standard 6.30 Thermal endurance for conductors 418 NOT APPLICABLE 6.31 Dynamic cut-through 501 Load and T: Table 2 3 X Product standard Applicable to single and jacketed cables only 6.32 Notch propagation 502 Cut d
39、epth: product standard 3 X continued EN 4608-001:20068 Table 1 (continued) Tests Each delivery No. Description EN 3475- (and/or particulars) Qualificationa( 7.1) On all cables ( 7.2.1 and7.2.2)Prior to delivery( 7.2.1 and7.2.3)Periodic Every 3 years ( 7.2.4)Requirements (and/or particulars) 6.33 Scr
40、ape abrasion 503 Load: product standard3 X Requirements to be considered at 20 C unless otherwise specified Applicable to single and jacketed cables only 6.34 Torsion 504 Load: Table 2 T: 260 C / 275 C 3 X 6.35 Tensile test on conductors and strands 505 3 X 6.36 Plating continuity b506 3 X 6.37 Adhe
41、rence of plating b507 3 X 6.38 Plating thickness b508 3 X Product standard 6.39 Solderability 509 NOT APPLICABLE 6.40 Tensile strength and elongation of extruded insulation, sheath and jacket material 510 NOT APPLICABLE 6.41 Cable-to-cable abrasion 511 NOT APPLICABLE 6.42 Flexure endurance 512 NOT A
42、PPLICABLE 6.43 Deformation resistance (Installation with plastic cable ties) 513 NOT APPLICABLE 6.44 Porosity of copper cladding on aluminium strands 514 NOT APPLICABLE 6.45 Smoke density 601 3 X 6.46 Toxicity 602 3 X 6.47 Resistance to wet arc tracking 603 NOT APPLICABLE 6.48 Resistance to dry arc
43、propagation 604 NOT APPLICABLE 6.49 Wet short circuit test 605 NOT APPLICABLE 6.50 Strippability and adherence of insulation to the conductor b701 3 X Product standard 6.51 Screen pushback capability 702 3 X 6.52 Permanence of manufacturers marking 703 3 X continued EN 4608-001:20069 Table 1 (conclu
44、ded) Tests Each delivery No. Description EN 3475- (and/or particulars) Qualificationa( 7.1) On all cables ( 7.2.1 and7.2.2)Prior to delivery( 7.2.1 and7.2.3)Periodic Every 3 years ( 7.2.4)Requirements (and/or particulars) 6.53 Flexibility 704 NOT APPLICABLE 6.54 Permanence of user-applied marking EN
45、 3838 X X Product standard Contrast measurement 705 Laser parameters: 706 1 X 6.55 Capacitance per unit length 801 APPLICABLE TO EN 4608-005 Product standard 6.56 Capacitance unbalance (within one pair) 802 APPLICABLE TO EN 4608-005 Product standard 6.57 Capacitance variation 803 NOT APPLICABLE 6.58
46、 Velocity of propagation 804 APPLICABLE TO EN 4608-005 Product standard 6.59 Characteristic impedance 805 APPLICABLE TO EN 4608-005 Product standard 6.60 Attenuation 806 APPLICABLE TO EN 4608-005 Product standard 6.61 Transfer impedance 807 APPLICABLE TO EN 4608-005 Product standard 6.62 Cross-talk
47、808 NOT APPLICABLE 6.63 Test method to assess the unbalance resistance (DC) 809 NOT APPLICABLE 6.64 Test method to assess the structural return loss 810 NOT APPLICABLE 6.65 Test method to assess the unbalance attenuation 811 NOT APPLICABLE aNumber of specimens per cross-section for each test unless
48、otherwise specified. bCarried out on component and cable. cCarried out on component only. EN 4608-001:200610 Table 2 Mandrel diameters, loads and adherence Conductor code Section AWG Maximum mandrel diameters Loads mm2mm N 002 0,25 24 7 004 0,4 22 9 006 0,6 20 10 010 1,0 18 10 012 1,2 16 10 020 2 14
49、 12 times the maximum diameter of the cable 15 7 Qualification and acceptance conditions 7.1 Qualification 7.1.1 Requirements General: See EN 9133. 7.1.2 Qualification conditions The cables shall be submitted for qualification tests on drums, spools or in coils in sufficient lengths, wound evenly and uniformly. Each drum, spool or coil shall have a label containing information given in
