1、BSI Standards PublicationBS EN 4641-100:2015Aerospace series Cables,optical 125 m diameter claddingPart 100: Tight structure 62,5/125 m core GI fibre 1,8 mm outside diameter Product standardBS EN 4641-100:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4641
2、-100:2015. The UK participation in its preparation was entrusted to TechnicalCommittee 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
3、 necessary 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 86117 8 ICS 49.090 Compliance with a British Standard cannot confer immunity from legal obligations.This British Stand
4、ard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 4641-100:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4641-100 September 2015 ICS 49.090 English Versi
5、on Aerospace series - Cables, optical 125 m diameter cladding - Part 100: Tight structure 62,5/125 m core GI fibre 1,8 mm outside diameter - Product standard Srie arospatiale - Cble, optique, diamtre extrieur de la gaine optique 125 m - Partie 100 : Cble structure serre fibre gradient dindice cur 62
6、,5/125 m, diamtre extrieur 1,8 mm - Norme de produit Luft- und Raumfahrt - Lichtwellenleiterkabel, Manteldurchmesser 125 m - Teil 100: Festaderaufbau GI 62,5/125 m Faser Kabeldurchmesser 1,8 mm - Produktnorm This European Standard was approved by CEN on 21 June 2014. CEN members are bound to comply
7、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 Ma
8、nagement 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
9、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, M
10、alta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 C
11、EN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4641-100:2015 EBS EN 4641-100:2015EN 4641-100:2015 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 5 4 Required characteristics 5
12、 5 Cable construction 5 6 Materials . 5 7 Test methods and performances in accordance with EN 3745-100 . 6 8 Quality assurance . 13 9 Designation, marking and colours . 13 10 Delivery conditions . 14 11 Storage . 14 Bibliography . 15 BS EN 4641-100:2015EN 4641-100:2015 (E) 3 European foreword This d
13、ocument (EN 4641-100:2015) 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 European Standard has received the approval of the National Associatio
14、ns 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 March 2016, and conflicting national standards shall
15、be withdrawn at the latest by March 2016. 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 Regula
16、tions, the national standards organizations 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, Ita
17、ly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4641-100:2015EN 4641-100:2015 (E) 4 1 Scope This European Standard specifies the general characteristics, conditions for qual
18、ification, acceptance and quality assurance for fibre optic cable: 4641-100. 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 references, only the edition cited applies. For undated r
19、eferences, the latest edition of the referenced document (including any amendments) applies. EN 2424, Aerospace series Marking of aerospace products EN 2812, Aerospace series Stripping of electric cables EN 3745 (all parts), Aerospace series Fibres and cables, optical, aircraft use Test methods EN 3
20、838, 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 aerospace standard pa
21、rts TR 6058, Aerospace series Cable code identification list 1)TIA/EIA-455-30-B, FOTP-30 Frequency Domain Measurement of Multimode 2)TIA/EIA-455-175-B, FOTP175 Chromatic Dispersion Measurement of Single-mode Optical Fibers by the Differential Phase Shift Method 2)ANSI/EIA 4920000-A, Generic Specific
22、ation for Optical Waveguide Fibers 2)1) Published as ASD-STAN Technical Report at the date of publication of this European Standard. http:/www.asd-stan.org/ 2) Published by: National (US) American National Standard Institute. http:/www.ansi.org/ BS EN 4641-100:2015EN 4641-100:2015 (E) 5 3 Terms and
23、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. 5 Cable construction S
24、ee Figure 1 and Table 1. Key 1 Core 2 Optical cladding 3 Primary coating 4 Primary jacket 5 Mechanical strength braid 6 Outer jacket Figure 1 Table 1 Property Value Mass 4 g/m Operating temperature -55 C to 125 C Minimum bend radius (20 C) Installation: 20 mm (10 outside diameter) Long term: 20 mm (
25、10 outside diameter) Storage: 40 mm (20 cable outside diameter) Tensile strength 200 N 6 Materials See Table 2. BS EN 4641-100:2015EN 4641-100:2015 (E) 6 Table 2 Element Material Fibre Core Silica Cladding Primary coating Silicone Primary jacket Halogen free high temperature copolymer Mechanical str
26、ength reinforcement Polymer aromatic braid Outer jacket High temperature copolymer 7 Test methods and performances in accordance with EN 3745-100 7.1 Optical fibre tests See Table 3. Table 3 Optical fibre test methods Test method EN 3745- Designation of the test Test conditions and results 201 Fibre
27、 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 3) m 202 Fibre dimension cladding diameter Cladding diameter: (125 2) m Method A or B Sample should be in accordance wi
28、th 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 Fibre dimension concentricity error Concentricity error: 3 m Num
29、ber of sample: 1 301 Method A Fibre attenuation 4 dB/km at 850 nm (20 C) 2 dB/km at 1 300 nm (20 C) 302 Numerical aperture 0,275 0,015 303 Bandwidth Bandwidth 160 MHz.km at 850 nm Bandwidth 500 MHz.km at 1 300 nm Number of sample: 1 Minimal length of the sample: 1 km Central wavelengths: 850 nm / 1
30、300 nm 10 nm Spectral width ( 3 dB): 10 nm for 850 nm and 1 300 nm 501 Optical fibre proof test 1 % BS EN 4641-100:2015EN 4641-100:2015 (E) 7 7.2 Fibre optic cable See Table 4. Table 4 Fibre optic cable test methods (1 of 6) Test method EN 3745- Designation of the test Test conditions and results 20
31、1 Visual Inspection The outer jacket shall have the correct identification as specified in this European Standard. The coating shall be continuous and free of visible defects such as lumps, abrasions, cracks, splits or blisters. Sample length: (100 0,05) m 203 Primary coating outside diameter (400 2
32、5) m 203 Buffer diameter (900 25) m 203 Outer jacket outside diameter (1,8 0,1) mm 203 Outer jacket wall thickness (0,35 0,07) mm 205 Cable longitudinal dimensional stability The change in longitudinal dimensions between core/cladding and primary jacket and core/cladding and outer jacket shall not e
33、xceed the maximum value of 200 m. Number of samples: 4 in total, 2 for each length Length of the samples: 2 m, (20 0,01) m 301 Method C Cable attenuation Visual examination in accordance with EN 3745-201 Maximum attenuation at -55 C and 125 C 0,7 dB at 850 nm and 1 300 nm Number of sample: 1 Length
34、of the sample: (20 0,01) m Central wavelengths: 850 nm and 1 300 nm Rate of change to reach test temperature: 10 C per minute 1 h stabilization at -55 C/125 C before performing test 301 Method A Cable optical discontinuity Signal discontinuity 0,2 dB/point Number of sample: 1 301 Method A Attenuatio
35、n Maximum attenuation at 20 C 4 dB/km at 850 nm, 2 dB/km at 1 300 nm Central wavelengths: 850 nm and 1 300 nm Number of sample: 1 Length of the sample: 250 m minimum BS EN 4641-100:2015EN 4641-100:2015 (E) 8 Table 4 Fibre optic cable test methods (2 of 6) Test method EN 3745- Designation of the test
36、 Test conditions and results 305 Immunity to ambient light coupling Level of optical power 50 dBm Diameter of the sphere integration: (10 0,1) cm Length of the sample in the light proof element: (1 0,01) m Spectral characteristics or colour temperature of the light source: solar spectrum Continuous
37、spectrum between 250 nm and 1 600 nm Light temperature: 6 000 K Light intensity: 86 400 lx Minimum authorized long term bend radius: (20 0,1) mm 306 Variation of attenuation during temperature cycling Visual examination in accordance with EN 3745-201 Maximum permitted variation of attenuation: 0,7 d
38、B at 850 nm and 1 300 nm Number of samples: 3 Length of the sample: (20 0,01) m Temperature cycling (see EN 3745-402) Number of cycles: 5 401 Cable accelerated ageing Visual examination in accordance with EN 3745-201 Maximum variation in attenuation: 0,5 dB Maximum variation in attenuation after 24
39、h: 0,3 dB Residual maximum variation in attenuation: 0,2 dB Number of samples: 3 Length of the sample: (100 0,05) m Diameter of the mandrel: 250 mm Number of temperature cycles: 1 Test is carried out at the temperature of 125 C 402 Temperature cycling High temperature: 125 C Low temperature: -55 C D
40、uration at extreme temperatures: 30 min Number of cycles: 5 Rate of change: 5 C/min 404 Thermal shock Visual examination in accordance with EN 3745-201 Maximum permissible variation in attenuation during test sequence and after 24 h 0,7 dB The maximum displacement of the fibre value shall be 200 m r
41、elative to the outer jacket Number of samples: 3 Length of the sample: (20 0,01) m Number of temperature cycles: 4 Test is carried out at -55 C and 125 C BS EN 4641-100:2015EN 4641-100:2015 (E) 9 Table 4 Fibre optic cable test methods (3 of 6) Test method EN 3745- Designation of the test Test condit
42、ions and results 406 Cold bend test Maximum permissible variation in attenuation after 24 h 0,2 dB Number of samples: 3 Length of the samples: (2 0,01) m Diameter of the mandrel: 40 mm Turns number: 10 Number of temperature cycles: 2 Test is carried out at the temperature of -55 C 407 Flammability F
43、lame extinction before 7 s No flaming particles shall fall from the sample during the test and the tissue paper shall not be ignited Period of flame application shall be 30 s Number of specimen to be test: 3 410 Thermal life Maximum permissible variation in attenuation: 2 dB Number of samples: 3 Len
44、gth of the specimen: (100 0,05) m Lifetime shall be 100 000 h. 411 Method 2 Resistance to fluids Visual examination in accordance with EN 3745-201 Maximum variation of weight: m = 5 % No cracks Low colour modification Readable marking. See 7.4 for fluids table. 412 Humidity resistance Visual examina
45、tion in accordance with EN 3745-201 Maximum residual attenuation: 0,2 dB Maximum variation of weight: m = 5 % Number of sample: 1 Length of the specimen: (20 0,1) m Number of cycles: 15 503 Scrape abrasion Maximum variation of attenuation: 1 dB Visual examination in accordance with EN 3745-201 Numbe
46、r of samples: 2 Load to be applied: 10 N Length of the sample: (0,75 0,01) m Number of cycles: 100 504 Micro bending test Maximum variation in attenuation: 1 dB Maximum residual attenuation 15 min after removing the load: 0,1 dB Visual examination in accordance with EN 3745-201 Number of samples: 3
47、Load to be applied: 50 N Rate at which the load is applied: 50 N/min mandrel = 20 mm BS EN 4641-100:2015EN 4641-100:2015 (E) 10 Table 4 Fibre optic cable test methods (4 of 6) Test method EN 3745- Designation of the test Test conditions and results 505 Cable tensile strength For F = 150 N, maximum v
48、ariation in attenuation: 0,5 dB Rupture load: 200 N Number of specimens: 3 506 Impact resistance Permissible change in attenuation after the test: 0,5 dB The test is carried out at the temperature of 20 C Number of samples: 3 Length of sample: (2 0,01) m Load to be applied: 5 N Radius R of the inter
49、mediate piece: 15 mm Drop: 1 m Number of impact: 5 507 Cut-through Visual examination in accordance with EN 3745-201 Variation of attenuation (this parameter shall be monitored continuously during the test) Evaluation of the breakage or non-breakage of the specimen Number of samples: 3 Length of sample: (2 0,01) m Load to be applied: 20 N
