1、BSI Standards PublicationBS EN 4641-101:2015Aerospace series Cables,optical 125 m diametercladdingPart 101: Tight structure 62,5 m core GIfibre 0,9 mm outside diameter ProductstandardBS EN 4641-101:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4641-101:20
2、15.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 necess
3、ary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 87670 7ICS 49.090Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was pu
4、blished under the authority of the Standards Policy and Strategy Committee on 30 April 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 4641-101:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4641-101 April 2015 ICS 49.090 English Version Aerospace serie
5、s - Cables, optical 125 m diameter cladding - Part 101: Tight structure 62,5 m core GI fibre 0,9 mm outside diameter - Product standard Srie arospatiale - Cbles, optiques, diamtre extrieur de la gaine optique 125 m - Partie 101 : Cbles structure serre, fibre gradient dindice coeur 62,5 m, diamtre ex
6、trieur 0,9 mm - Norme de produit Luft- und Raumfahrt - Lichtwellenleiterkabel, Mantelauendurchmesser 125 m - Teil 101: Vollader, 62,5 m GI-Faser, Kabelauendurchmesser 0,9 mm - Produktnorm This European Standard was approved by CEN on 29 November 2014. CEN members are bound to comply with the CEN/CEN
7、ELEC 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
8、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 of
9、ficial 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, Netherland
10、s, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights o
11、f exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4641-101:2015 EBS EN 4641-101:2015EN 4641-101:2015 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Required characteristics .4 5 Materials and descripti
12、on .5 6 Test methods and performances in accordance with EN 3745-100 .5 7 Quality assurance . 12 8 Designation, marking and colours 12 9 Delivery conditions . 13 10 Storage . 13 BS EN 4641-101:2015EN 4641-101:2015 (E) 3 Foreword This document (EN 4641-101:2015) has been prepared by the Aerospace and
13、 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
14、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 October 2015, and conflicting national standards shall be withdrawn at the latest by October 2015. 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 organizations 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 4641-101:2015EN 4641-101:2015 (E) 4 1 Scope This product standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance for a fibre optic cable wit
18、h a 62,5/125 m Graded Index fibre core, 0,9 mm outside diameter and of tight buffer construction, for inside wiring applications. 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 refe
19、rences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2812, Aerospace series Stripping of electric cables EN 3745-100 (all parts), Aerospace series Fibres and cables, optical, aircraft use Test methods Par
20、t 100: General EN 3838, Aerospace series Requirements and tests on user-applied markings on aircraft electrical cables EN 3909, Aerospace series Test fluids and test methods for electric components and sub-assemblies EN 9133, Aerospace series Quality management systems Qualification procedure for ae
21、rospace standard parts TIA/EIA-455-30-B, FOTP-30 Frequency Domain Measurement of Multimode 1)TIA/EIA-455-175-B, FOTP175 Chromatic Dispersion Measurement of Single-mode Optical Fibers by the Differential Phase Shift Method 1)ANSI/EIA 4920000-A, Generic Specification for Optical Waveguide Fibers 1)3 T
22、erms and definitions For the purposes of this document, the terms and definitions given in EN 3745-100 apply. 4 Required characteristics The characteristics of the cables, tested according to the methods described hereafter shall comply with the values defined in this product standard. See Table 1.
23、Table 1 Property Value Cable mass 1 g/m Operating temperature 55 C to 125 C Minimum bend radius (20 C) Installation: 10 mm (10 outside diameter) Long term: 10 mm (10 outside diameter) Storage: 20 mm (20 cable outside diameter) Tensile strength 20 N 1)Published by: National (US) American National Sta
24、ndard Institute (www.ansi.org/).BS EN 4641-101:2015EN 4641-101:2015 (E) 5 5 Materials and description The following table details a breakdown of materials used in the construction of the fibre optic cable. The list of materials is not exclusive and any materials used in the construction of the cable
25、 must meet the required operating and qualification requirements whilst being compatible with termination processes, methods of retention or epoxy adhesive application used in those processes. See Figure 1 and Table 2. Key 1 Optical fibre 2 Primary coating 3 Outer jacket Figure 1 Table 2 Element Mat
26、erial Fibre Core Silica Cladding Primary coating Silicone Outer jacket Halogen free high temperature copolymer 6 Test methods and performances in accordance with EN 3745-100 6.1 Optical fibre tests See Table 3. BS EN 4641-101:2015EN 4641-101:2015 (E) 6 Table 3 Optical fibre test methods Test method
27、EN 3745- Designation of test Test conditions and results 201 Fibre visual examination The coating shall be continuous and free of visible defects such as lumps, abrasions, cracks, splits or blisters 202 Fibre core dimensions Core diameter: 62,5 m 3 m 202 Fibre dimension cladding diameter Cladding di
28、ameter: 25 m 2 m Method A or B Sample should be in accordance with test methods Number of sample: 1 202 Fibre dimension core non circularity Core non circularity: 5 % (3 m) Number of sample: 1 202 Fibre dimension cladding non circularity Cladding non circularity: 2 % (2,5 m) Number of sample: 1 202
29、Fibre dimension concentricity error Concentricity error: 3 m Number of sample: 1 501 Optical fibre proof test 1 % 301 Method A Fibre attenuation 3 m Load to be applied: 500 N Area of load: 100 mm2 Load duration: 15 mm Maximum variation of attenuation: 0.1 dB 514 Bend twist Not applicable 515 Buffer
30、insertion force Not applicable 516 Severe bend Not applicable 517 Cable tie clamping Not applicable 601 Smoke density The specific optical smoke density (average) Dm 200 within 4 min test duration under both the flaming and non-flaming conditions. The value must be measured at the end of the test. 6
31、02 Toxicity Applicable 603 Nuclear radiation Not applicable 701 Cable stripping Visual examination in accordance with EN 3745-201 Applicable to outer jacket Number of samples to be tested: 3 Length of sample: 2 m 0,01 m Blade design (see EN 2812) Load defined in relation to the cable construction to
32、 be stripped: F 1 N/10 mm Total Length to be stripped: 50 mm 703 Durability of manufacturers identity markings Not applicable BS EN 4641-101:2015EN 4641-101:2015 (E) 11 Table 4 Fibre optic cable test methods (5 of 5) Test method EN 3745- Designation of test Test conditions and results 705 Contrast m
33、easurement Not applicable 706 EN 3838 except “Voltage test“ Durability of user identification markings Not applicable General test conditions: The tests shall be performed with the following launch condition: 85/85 %. Measurement method for each test except *: EN 3745-301 method C. 6.3 Special tests
34、 for optical fibre See Table 5. Table 5 Test method Designation of test Test conditions and results TIA/EIA-455-30-B Effective group index of refraction Numerical aperture: 0,275 0,015 (0,26 to 0,29) Number of sample: 1 Length of the sample: 2 m 0,01 m Wavelength: 850 nm 20 nm TIA/EIA-455-175-B Fibr
35、e chromatic dispersion I a class is suitable for graded index fibre (1 g 3) I b class is suitable for pseudo graded index fibre (3 g 10) Zero dispersion wavelength (0): 1 320 nm 0 1 365 nm Zero dispersion slope (S0): S0 0. 11 ps/(nm2km)Central operating wavelength (lc): 750 nm c 1 450 nm Chromatic D
36、ispersion: D (c) S0 / 4 c (04/ c3) According to the ANSI/EIA-4920000-A specification, the optical fibre is in accordance with I a class. Specimen should be in accordance with FOTP Minimal length of the sample: 1 km Number of sample: 1 Length of reference fibre 2 m per km of tested sample BS EN 4641-
37、101:2015EN 4641-101:2015 (E) 12 6.4 Fluids test See Table 6. Table 6 List of fluids Fluids family Type Fluid number see EN 3909 Test temperature 2 C Duration 24 h Fuel Kerosene 2 70 Hydraulic fluid Phosphate base 3 70 Silicone base 4 80 Mineral base 5 80 Oils Mineral base 6 125 Mineral base 7 70 Syn
38、thetic oil 9 Cleaning fluids Solvent 10 50 Solvent 11 25 De-icing Aircraft 15 25 Cooling Coolant 25 Radar coolant 19 7 Quality assurance See EN 9133. 8 Designation, marking and colours 8.1 Designation EXAMPLE Description block CABLE FIBRE OPTIC Identity block EN4641-101 Number of the basic standard
39、Product standard 8.2 Marking Not applicable. 8.3 Colours The colour of the outer jacket will be black. BS EN 4641-101:2015EN 4641-101:2015 (E) 13 9 Delivery conditions 9.1 Packaging See EN 4641-001. 9.2 Labelling See EN 4641-001. 9.3 Delivery lengths The minimum delivery length of a fibre or cable i
40、s: 100 m 10 Storage Fibre optic cables shall be stored as described hereunder: Humidity : 90 % Temperatures : 55 C to 75 C Tensile strength on cable : 20 N This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other
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