1、BS EN 4532:2009ICS 49.06NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Cables, optical, singlecore 200 m/280 mfibre, 2,5 mm outerjacket Technicalspecification0This British Standardwas published under theauthority of the StandardsPolicy and Stra
2、tegyCommittee on 31 March2009 BSI 2009ISBN 978 0 580 53242 9Amendments/corrigenda issued since publicationDate CommentsBS EN 4532:2009National forewordThis British Standard is the UK implementation of EN 4532:2009.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aer
3、ospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance wi
4、th a British Standard cannot confer immunityfrom legal obligations.BS EN 4532:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 4532February 2009ICS 49.060English VersionAerospace series - Cables, optical, single core 200 m/280 mfibre, 2,5 mm outer jacket - Technical specificationSrie arospatial
5、e - Cbles, optiques, fibre 200 m/280m, diamtre extrieur 2,5 mm - Spcification techniqueLuft- und Raumfahrt - LWL-Kabel, 200 m/280 m Faser,2,5 mm Aussendurchmesser - TechnischeLieferbedingungenThis European Standard was approved by CEN on 5 October 2008.CEN members are bound to comply with the CEN/CE
6、NELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any
7、 CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN
8、members are the national standards bodies of Austria, Belgium, Bulgaria, 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
9、, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No.
10、 EN 4532:2009: EBS EN 4532:2009EN 4532:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 5 4 Description . 5 4.1 Construction of type A primary fibre (Jacketed fibre) . 5 4.2 Construction of type B single core cable 5 5 Cable characteristics . 6 5.1 Opt
11、ical performance of cable . 6 5.2 Construction data of cable (Type B) 6 5.3 Mechanical characteristics of cable (Type B) . 7 6 Fibre characteristics 7 6.1 Optical and material data of primary fibre 7 6.2 Geometrical data of primary fibre and concentricity of primary coating 8 7 Environmental conditi
12、ons . 8 7.1 Temperature range 8 7.2 Operating pressure range . 8 7.3 Humidity 8 7.4 Nuclear radiation . 8 8 Production acceptance (routine) tests 9 8.1 General 9 8.2 Group A Production acceptance (routine) tests 9 8.3 Group B Production verification (quality) tests .11 8.4 Group D Qualification appr
13、oval tests (cable type B) .12 9 Additional test information .14 9.1 Repeatability of test results 14 9.2 Definition of full launch conditions .15 9.3 Full launch techniques 15 9.4 Additional requirements .15 9.5 Practical realisation .15 9.6 Test arrangement for low- and high- temperature tests 15 1
14、0 Marking and packaging requirements .16 10.1 Designation of type A primary fibre .16 10.2 Designation of type B cable 16 10.3 Marking of cable 16 10.4 Ordering information .17 10.5 Cable length .17 10.6 Storage reel 17 BS EN 4532:2009EN 4532:2009 (E) 3 Foreword This document (EN 4532:2009) has been
15、 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 c
16、ountries 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 August 2009, and conflicting national standards shall be withdrawn at the latest by August 2009.
17、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 organization
18、s of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
19、Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 4532:2009EN 4532:2009 (E) 4 1 Scope This standard covers two cable types, Type A and Type B. Type A, jacketed fibre, is intended for printed circuit board inter-connection applications inside equipment. Type B, single core,
20、 is intended for general airframe and equipment inter-connection cable suitable for installation in all aircraft locations, with exception of power plant compartments. These cables are particularly suitable for use in military aircraft as well as for general civil aircraft applications. 2 Normative
21、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 amendments) applies. EN 2591-306, Aerospace series Elements
22、 of electrical and optical connection Test methods Part 306: Mould growth EN 2591-316, Aerospace series Elements of electrical and optical connection Test methods Part 316: Ozone resistance EN 3733-001, Aerospace series Connector, optical , circular, single channel, coupled by self-locking ring, ope
23、rating temperature up to 150 C continuous Part 001: Technical specification1)EN 3745-100*, Aerospace series Fibres and cables, optical, aircraft use Test methods Part 100: General ISO 1817, Rubber, vulcanized Determination of the effect of liquids ISO 2574, Aircraft Electrical cables Identification
24、marking IEC 60793-1-1, Optical fibres Part 1-1: Measurement methods and test procedures General and guidance IEC 60794-1-2, Optical fibre cables Part 1-2: Generic specification Basic optical cable test procedures IEC 60874-1, Connectors for optical fibres and cables Part 1: Generic specification MIL
25、-HDBK-454B, General guidelines for electronic equipment * And all applicable parts quoted. 1) Published as ASD Prestandard at the date of publication of this standard. BS EN 4532:2009EN 4532:2009 (E) 5 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3
26、745-100 and the following apply. 3.1 batch of fibre a batch of fibre is defined as a continuous pull from a single identifiable preform 3.2 batch of cable a batch of cable is defined as all cable arising from one continuous extrusion and stranding operation on fibre from a single batch 4 Description
27、 4.1 Construction of type A primary fibre (Jacketed fibre) The cable shall consist of a single, step-index, multimode, all silica fibre (pure silica core with sufficiently high OH content to meet nuclear radiation hardening requirements) and suitably doped silica cladding which is protected by a pri
28、mary coating. The cable shall have a tight buffer, all dielectric (non-conducting) construction and have an operating temperature range of 60 C to 150 C. The primary fibre shall consist of core, cladding and primary coating. For a cable end view and side view drawing (3rd angle), see Figure 1. Key 1
29、 Buffer 2 Primary coating 3 Cladding 4 Core 5 Refractive index Figure 1 Construction of type A primary fibre 4.2 Construction of type B single core cable The cable shall consist of a single, step-index, multimode, all silica fibre (pure silica core with sufficiently high OH content to meet nuclear r
30、adiation hardening requirements) and suitably doped silica cladding which is protected by a primary coating. The cable shall have a tight buffer, all dielectric (non-conducting) construction, with strength members and outer sheath, and have an operating temperature range of 60 C to 150 C. The cable
31、shall comprise an outer sheath, strength member, inner sheath, buffer, and fibre, which is protected by a primary coating. For a cable end view and side view drawing (3rd angle), see Figure 2. 1 2 3 4 5 BS EN 4532:2009EN 4532:2009 (E) 6 Key 1 Outer sheath 2 Inner sheath 3 Primary coating 4 Core 5 Cl
32、adding 6 Buffer 7 Strength member Figure 2 Construction of type B cable 5 Cable characteristics 5.1 Optical performance of cable 5.1.1 Optical isolation of cable jacketing The cable jacketing shall provide sufficient optical isolation so that any possible ambient light pick up is not more than 1 nW
33、over a length characteristic for the installed fibre-optic network. 5.1.2 Useful installed lifetime The useful installed lifetime shall be 25 years. 5.1.3 Mean time between failure (MTBF) Cable failure rate of 0,02/100 m over 25 years life. 5.2 Construction data of cable (Type B) 5.2.1 Sheath colour
34、 The sheath shall be coloured light violet. 5.2.2 Cable design Tight buffer, all dielectric construction with strength members suitable for single connectors. 1 2 3 4 5 6 7 BS EN 4532:2009EN 4532:2009 (E) 7 5.3 Mechanical characteristics of cable (Type B) Minimum cable bend radius: during installati
35、on: 12 mm; installed long term ( 25 years): 30 mm. The installed cable shall have this narrow bending radius only over shorter distances, which shall add up to a total of not more than 200 mm per individual light path. 6 Fibre characteristics 6.1 Optical and material data of primary fibre 6.1.1 Fibr
36、e type All silica, step index exponent g 30, multimode. Deviation from ideal step index profile at a relative core diameter of 0,90 shall be less than 4 % of refractive index difference nco ncl. In the case of a structured cladding, the region adjacent to the core shall be a homogeneous cladding hav
37、ing an outer diameter of at least 1,15 Dcore, wherein the refractive index variation nmax. nmin.is 14 10-4. 6.1.2 Refractive index difference of core/cladding Test method according to IEC 60793-1-A1A. Refractive index difference between core/cladding Nco Ncl= (20 1,2) 10-3at a wavelength of 633 nm;
38、this value refers to the mean value of Nclin the depressed cladding. Step index g-factor g 30. Outer diameter of inner cladding: DDinn.cladd 1,15 Dcore. Refractive index homogeneity of inner cladding: nmax. nmin. 14 10-4. 6.1.3 Numerical aperture (Theoretical) Defined by nco nclbased on a refractive
39、 index for pure silica, with high OH content, of 1,4571 at a wavelength of 633 nm (Helium neon laser). NAtheor= 0,24 0,01. 6.1.4 Fibre core material composition The optical fibre is to be pure silica undoped. The UV-absorption of the fibre shall be measured close to absorption edge, using cut back t
40、echnique with: fibre length = 4 m cut back to 1 m length, source = (220 5) nm, 6,0 dB/m. 6.1.5 Cladding material composition The cladding material shall be suitable doped silica. Material analysis by micro probe or corresponding x-ray analysis. BS EN 4532:2009EN 4532:2009 (E) 8 6.2 Geometrical data
41、of primary fibre and concentricity of primary coating To prevent microbending d1/d2 0,9. Primary coatings shall be easily removable for splice fabrication and connector mounting and compatible with cabling and connector fitting processes. They shall provide a water barrier to ensure long lifetime in
42、 humid environments. See Figure 3. Key 1 Primary coating 2 Fibre Figure 3 Concentricity of primary coating 7 Environmental conditions 7.1 Temperature range The operating temperature shall be 60 C to 150 C. 7.2 Operating pressure range The operating pressure range shall be 2 000 mbar to 11 mbar. 7.3
43、Humidity 7.3.1 Operating humidity Equivalent to a water content of equipment cooling air max. 27 g H2O per 1 kg air. This water content corresponds to an operative relative humidity which may approach 100 % at medium or lower temperatures. 7.3.2 Storage humidity Relative humidity max. 75 %. 7.4 Nucl
44、ear radiation After a down-time of 1 msec the induced attenuation is 15 dB/km at T = 24 C and 82 dB/km at T = 60 C. d1 d21 2BS EN 4532:2009EN 4532:2009 (E) 9 8 Production acceptance (routine) tests 8.1 General 8.1.1 Measurement conditions Unless otherwise specified, all tests shall be carried out un
45、der standard atmospheric conditions. 8.1.2 Recovery conditions Unless otherwise specified, recovery conditions for the interval after a conditioning test shall be as stated in the relevant test method. 8.1.3 Declaration of design and performance The qualification approval tests are listed in 8.2, 8.
46、3 and 8.4. At satisfactory conclusion of qualification, a preliminary or a formal Declaration of Design and Performance (DDP) including test results shall be submitted to the approving authority. 8.2 Group A Production acceptance (routine) tests 8.2.1 Acceptance tests The acceptance tests shall be c
47、arried out routinely during F.O. cable production. 8.2.2 Primary fibre (for cable types A and B) Comprising core, cladding, and primary coating to be measured at each end of a fibre batch. See Table 1. BS EN 4532:2009EN 4532:2009 (E) 10 Table 1 Acceptance tests on primary fibre (for cable types A an
48、d B) Test Test method Test performance/conditions Fibre core diameter EN 3745-202 (200 3) m e.g. using a calibrated optical microscope Non circularity of core EN 3745-202 2,5 m Fibre cladding diameter EN 3745-202 (278 2) m e.g. using a calibrated optical microscope Non circularity of cladding EN 374
49、5-202 2,0 m Concentricity error of fibre core/cladding EN 3745-202 (1 1) m e.g. using a calibrated optical microscope Fibre proof test IEC 60793-1-B1 Ambient conditions; 65 N. 100 % of fibre to be tested. 65 N at fibre which is equivalent to 1,4 % strain at the fibre. Fibre attenuation EN 3745-301 Fibre attenuation loss 15,0 dB/km. Full launch technique. Launching fibre specification: Length = (220 20) m.
