1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 3197:2010Aerospace series Design andinstallation of aircraft electricaland optical interconnectionsystemsBS EN 3197:2010 BRITISH STANDARDNational forewordThis British Stand
2、ard is the UK implementation of EN 3197:2010.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can beobtained on request to its secretary.This publication doe
3、s not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 71961 5ICS 49.060; 49.090Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authorit
4、y of theStandards Policy and Strategy Committee on 31 January 2011.Amendments issued since publicationDate Text affectedBS EN 3197:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3197 December 2010 ICS 49.060; 49.090 English Version Aerospace series - Design and installation of aircraft ele
5、ctrical and optical interconnection systems Srie arospatiale - Conception et installation des organes de raccordements lectriques et fibres optiques sur avions Luft- und Raumfahrt - Konstruktion und Installation elektrischer und optischer Verkabelung in Luftfahrzeugen This European Standard was appr
6、oved by CEN on 30 July 2010. 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 s
7、tandards 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 an
8、d 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li
9、thuania, 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: Avenue Marnix 17, B-1000 Brussels 201
10、0 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3197:2010: EBS EN 3197:2010EN 3197:2010 (E) 2 Contents Page Foreword 3 ORGANISATION OF THIS STANDARD (Detailed organisation may be found in Annex A) 4 1 Scope 5 2 Normative referenc
11、es 5 3 Terms and definitions .6 4 Limitations 6 5 General requirements 6 6 Selection of EWIS and OFIS Components . 19 7 EWIS Components Identification 45 8 Separation and principles to apply . 48 9 Installation and manufacturing principles . 60 10 Modification and repairs by STC applicants 84 11 EWI
12、S and OFIS Safety 86 Annex A (informative) EN 3197 detailed content 87 Annex B (normative) Main normative references and ASD-STAN Technical Reports per family of products 95 B.1 Quality and General standards 95 B.2 Wires and cables. 96 B.3 Optical fibre cables, connectors and contacts 98 B.4 Connect
13、ors and contacts . 99 B.5 Protective devices 102 B.6 Switching devices . 103 B.7 Terminal junctions 103 B.8 Terminal lugs and in-line splice 104 B.9 Ties . 104 B.10 Solder sleeves . 104 B.11 Bonding leads . 105 B.12 Clamps . 105 B.13 Protective parts . 105 B.14 Identification parts 106 B.15 Installa
14、tion Components 106 B.16 Lamps 107 Annex C (informative) Differences of electrochemical potentials between some conductive materials (in mV) . 108 BS EN 3197:2010EN 3197:2010 (E) 3 Foreword This document (EN 3197:2010) has been prepared by the Aerospace and Defence Industries Association of Europe -
15、 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
16、 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2011, and conflicting national standards shall be withdrawn at the latest by June 2011. Attention is drawn to the possibility that some of the elements of this docum
17、ent 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 organizations of the following countries are bound to implement this European Standard: A
18、ustria, Belgium, Bulgaria, Croatia, 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 Kingdo
19、m. BS EN 3197:2010EN 3197:2010 (E) 4 ORGANISATION OF THIS STANDARD (Detailed organisation may be found in Annex A) 1 Scope page 5 Description of the aim of this document. 2 Normative references page 5 List of Normative references used. 3 Terms and definitions page 6 List of particular definitions or
20、 mentions of particular applicable documents. 4 Limitations page 6 Applicability of this document. 5 General requirements page 6 General and important considerations, plus specific requirements linked to particular areas of use. 6 Selection of EWIS and OFIS Components page 19 Guideline for the choic
21、e of necessary components. 7 EWIS and OFIS Components Identification page 45 Description of necessary identifications for components, bundles, equipements and repairs. 8 Separation and principles to apply page 48 Rules to satisfy for a good integration and behaviour of systems. 9 Installation and ma
22、nufacturing principles page 60 Description of installation and manufacturing principles. 10 Modification and repairs by STC applicants page 84 11 EWIS and OFIS Safety page 86 Safety analysis. NOTE Inside this standard, texts in italic come from official texts and cannot be modified without verificat
23、ion. BS EN 3197:2010EN 3197:2010 (E) 5 1 Scope This European standard provides instructions on the methods to be used when designing, selecting, manufacturing, installing, repairing or modifying the aircraft electrical and optical interconnection networks, now called Electrical Wiring Interconnectio
24、n System (EWIS), and Optical Fibre Interconnection Systems (OFIS), subjects to the limitations defined in Clause 4 of this standard. The general content of this standard is described in page 2. A detailed content of this standard is given in Annex A. This standard lists all the relevant European sta
25、ndards related to EWIS and OFIS in Annex B. 2 Normative references The following referenced documents are indispensable 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 ame
26、ndments) applies. EN 60270, High-voltage test techniques Partial discharge measurements (IEC 60270:2000) ISO 2574, Aircraft Electrical cables Identification marking ISO 2685, Aircraft Environmental test procedure for airborne equipment Resistance to fire in designated fire zones ISO 4046-1, Paper, b
27、oard, pulps and related terms Vocabulary Part 1: Alphabetical index ISO 7137, Aircraft Environmental conditions and test procedures for airborne equipment MIL-DTL-22520G, Revision G General Specification for Crimping Tools, Wire Termination Entire Set 1)MIL-STD-202, Test method standard electronic a
28、nd electrical component parts 1)MIL-T-43435B, Military specification tape, lacing and tying 1)TR 4684, Aerospace series Electrical technology and components definitions2)TR 9535, Aerospace series Substance declaration 2)TR 9536, Aerospace series Declarable Substances Recommended Practice 2)AS 81824/
29、1, Splice, electric, permanent, crimp style copper, insulated, environment resistant, class 1 3)AS 83519, Shield termination, solder style, insulated, heat-shrinkable, environment resistant with pre installed leads for cables having tin or silver plated shields (class I) 3)1) Published by: Departmen
30、t of Defense (DoD), http:/www.defenselink.mil/. 2) Published as ASD-STAN Technical Report at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN), (www.asd-stan.org). 3) Published by: Society of Automotive Engineers (SAE), (www
31、.sae.org). BS EN 3197:2010EN 3197:2010 (E) 6 ASTM D 1868, Standard Test Method for Detection and Measurement of Partial Discharge (Corona) Pulses in Evaluation of Insulation Systems 4)NOTE Related to EWIS and OFIS, all today existing ASD Normative references per family of products may be found in An
32、nex B. 3 Terms and definitions For the purposes of this document, the terms and definitions given in TR 4684 and the following apply. 3.1 Design Authority in this document, this term covers the Companies, in charge of the original design or to give the design agreement for which Certification will b
33、e required from the Regulatory Authorities 3.2 Regulatory Authority in this document, this term covers the Organisations in charge to write rules to satisfy, to survey the design and to grant Navigability Certificate, like EASA and FAA 4 Limitations It is recognized that the installation practices c
34、ontained in this standard do not necessarily represent the full requirements for a safe and satisfactory electrical and optical interconnection system. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. However, n
35、othing written in this standard shall override the specific requirements of a Design Authority, the Airworthiness Requirements, applicable laws or any regulation from the regulatory authorities, unless a specific exemption has been obtained. 5 General requirements 5.1 Applicable Rulemaking The main
36、rulemakings to satisfy for the definition of the various possible electrical installations on large aircrafts are coming from: Design technical requirements From the EASA European Aviation Safety Agency (CS 25) and the FAR Federal Aviation Regulation (14CFR Part 25). Organisation requirements From t
37、he EASA European Aviation Safety Agency (IR 21) and the FAR Federal Aviation Regulation (14CFR Part 21). 4) Published by: American Society For Testing and Materials (ASTM), http:/www.astm.org/. BS EN 3197:2010EN 3197:2010 (E) 7 Important advices: a) From the P2 issue, this standard includes the EWIS
38、 concept and associated consequences which were introduced in the regulation by the FAA in November 2007 and by the EASA in autumn 2008. This was also the opportunity for the authorities to group all the electrical requirements: the rules 25.17xx. b) CS or FAR 23, 27 and 29 which concern small aircr
39、aft, small and large helicopters were not updated in-line. 5.2 EWIS Definition The definition of the aircraft electrical interconnection network, now called Electrical Wiring Interconnection System (EWIS) is now given in the regulation. The retained text, coming from the EASA, is the following: CS 2
40、5.1701 Electrical Wiring Interconnection System Definition (a) Electrical wiring interconnection system (EWIS) means any wire, wiring device, or combination of these, including termination devices, installed in any area of the airplane for the purpose of transmitting electrical energy between two or
41、 more intended termination points. Except as provided for in Subclause (c) of this Subclause, this includes: 1) Wires and cables. 2) Bus bars. 3) The termination point on electrical devices, including those on relays, interrupters, switches, contactors, terminal blocks and circuit breakers, and othe
42、r circuit protection devices. 4) Connectors, including feed-through connectors. 5) Connector accessories. 6) Electrical grounding and bonding devices and their associated connections. 7) Electrical splices. 8) Materials used to provide additional protection for wires, including wire insulation, wire
43、 sleeving, and conduits that have electrical termination for the purpose of bonding. 9) Shields or braids. 10) Clamps and other devices used to route and support the wire bundle. 11) Cable tie devices. 12) Labels or other means of identification. 13) Pressure seals. (b) The definition in Subclause (
44、a) of this Subclause covers EWIS components inside shelves, panels, racks, junction boxes, distribution panels, and back-planes of equipment racks, including, but not limited to, circuit board back-planes, wire integration units and external wiring of equipment. (c) Except for the equipment indicate
45、d in Subclause (b) of this Subclause, EWIS components inside the following equipment, and the external connectors that are part of that equipment, are excluded from the definition in Subclause (a) of this Subclause: 1) Electrical equipment or avionics that is qualified to environmental conditions an
46、d testing procedures when those conditions and procedures are: i) Appropriate for the intended function and operating environment, and ii) Acceptable to the Agency. 2) Portable electrical devices that are not part of the type design of the aeroplane. This includes personal entertainment devices and
47、laptop computers. 3) Fibre optics. BS EN 3197:2010EN 3197:2010 (E) 8 5.3 OFIS Definition The definition of the aircraft optical fibre interconnection network, now called Optical Fibre Interconnection System (OFIS) was created by similarity. The retained text is the following: “OFIS means any fibre o
48、r cable, including termination devices, installed in any area of the aircraft for the purpose of transmitting optical signals between two or more intended termination points. Except as provided for in Subclause (c) of this Subclause, this includes: 1) Fibres and cables. 2) Optical Data buses. 3) The
49、 termination point on fibre optic transmitting sources and receiving devices protection devices. 4) Connectors, including feed-through connectors. 5) Connector accessories. 6) Fibre optic splices. 7) Materials used to provide additional protection for fibres and cables, including insulation, and conduit. 8) Clamps and other devices used to route and support the cable bundle. 9) Cable tie devices. 10) Labels or other means of identification. 11) Pressure seals. a) The definition in Subclause (a) of this Subclause covers OFIS components insi
