Bsi bs en 04641 101 2015

BS EN 4641-101:2015 BSI Standards Publication Aerospace series — Cables, optical 125 µm diameter cladding Part 101: Tight structure 62,5 µm core GI fibre 0,9 mm outside diameter — Product standard BS EN 4641-101:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 4641-101:2015 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 necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2015 Published by BSI Standards Limited 2015 ISBN 978 580 87670 ICS 49.090 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2015 Amendments/corrigenda issued since publication Date Text affected BS EN 4641-101:2015 EN 4641-101 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM April 2015 ICS 49.090 English Version Aerospace series - Cables, optical 125 µm diameter cladding Part 101: Tight structure 62,5 µm core GI fibre 0,9 mm outside diameter - Product standard Série aérospatiale - Câbles, optiques, diamètre extérieur de la gaine optique 125 µm - Partie 101 : Câbles structure serrée, fibre gradient d'indice coeur 62,5 µm, diamètre extérieur 0,9 mm - Norme de produit Luft- und Raumfahrt - Lichtwellenleiterkabel, Mantelauòendurchmesser 125 àm - Teil 101: Vollader, 62,5 àm GI-Faser, Kabelauòendurchmesser 0,9 mm Produktnorm This European Standard was approved by CEN on 29 November 2014 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 standards 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 and 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 4641-101:2015 E BS EN 4641-101:2015 EN 4641-101:2015 (E) Contents Page Foreword Scope Normative references Terms and definitions 4 Required characteristics .4 Materials and description .5 Test methods and performances in accordance with EN 3745-100 Quality assurance 12 Designation, marking and colours 12 Delivery conditions 13 10 Storage 13 BS EN 4641-101:2015 EN 4641-101:2015 (E) Foreword This document (EN 4641-101:2015) 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 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 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 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 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, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 4641-101:2015 EN 4641-101:2015 (E) Scope This product standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance for a fibre optic cable with a 62,5/125 µm Graded Index fibre core, 0,9 mm outside diameter and of tight buffer construction, for inside wiring applications 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 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 — Part 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 aerospace 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) Terms and definitions For the purposes of this document, the terms and definitions given in EN 3745-100 apply 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 Table Property Cable mass Operating temperature Minimum bend radius (20 °C) Tensile strength 1) Value ≤ g/m −55 °C to 125 °C Installation: 10 mm (~10 × outside diameter) Long term: 10 mm (~10 × outside diameter) Storage: 20 mm (~20 × cable outside diameter) > 20 N Published by: National (US) American National Standard Institute (www.ansi.org/) BS EN 4641-101:2015 EN 4641-101:2015 (E) 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 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 and Table Key Optical fibre Primary coating Outer jacket Figure Table Element Fibre 6.1 Core Cladding Material Silica Primary coating Silicone Outer jacket Halogen free high temperature copolymer Test methods and performances in accordance with EN 3745-100 Optical fibre tests See Table BS EN 4641-101:2015 EN 4641-101:2015 (E) Table — Optical fibre test methods Test method 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 µm ± µm 202 Fibre dimension cladding diameter Cladding diameter: 25 µm ± µm Method A or B Sample should be in accordance with test methods Number of sample: 202 Fibre dimension core non circularity Core non circularity: ≤ % (3 µm) 202 Fibre dimension cladding non circularity Cladding non circularity: ≤ % (2,5 µm) Number of sample: 202 Fibre dimension concentricity error Concentricity error: ≤ µm Number of sample: 501 Optical fibre proof test >1% Fibre attenuation < dB/km at 850 nm at 20 °C < dB/km at 300 nm at 20 °C Numerical aperture Numerical aperture: 0,275 ± 0,015 (0,26 to 0,29) 301 Method A 302 Number of sample: Number of sample : Length of the sample: m Wavelength: 850 nm ± 20 nm 303 Bandwidth Bandwidth ≥ 160 Mhz.km at 850 nm Bandwidth ≥ 500 Mhz.km at 300 nm Number of sample: Minimal length of the sample: km Central wavelengths: 850 nm ± 10 nm 300 nm ± 10 nm Spectral width (−3 dB): ≤ 10 nm for 850 nm and 300 nm 6.2 Fibre optic cable See Table BS EN 4641-101:2015 EN 4641-101:2015 (E) Table — Fibre optic cable test methods (1 of 5) Test method EN 3745201 Designation of test Visual inspection Test conditions and results The outer jacket shall have the correct identification as specified in this standard The coating shall be continuous and free of visible defects such as lumps, abrasions, cracks, splits or blisters Sample length: 100 m ± 0,05 m 203 Primary coating outside diameter 400 µm ± 25 µm 203 Outer jacket diameter 900 µm ± 25 µm 205 Longitudinal stability The change in longitudinal dimensions between core/cladding and primary jacket and core/cladding and outer jacket shall not exceed the maximum value of 200 µm Number of samples: in total, for each length Length of the samples: m, 20 m ± 0,01 m 301 Method A Attenuation Maximum attenuation at 20 °C α ≤ dB/km at 850 nm, α ≤ dB/km at 300 nm Sample should be in accordance with fibre optic test procedure Central wavelengths: 850 nm and 300 nm Number of sample: Length of the sample: 250 m minimum 301 Method A Cable optical discontinuity Signal discontinuity < 0,2 dB/point Number of sample: 305 Cable immunity to ambient light Not applicable 306 Attenuation during temperature cycling Visual examination in accordance with EN 3745-201 Maximum permitted variation of attenuation: α ≤ 0,7 dB at 850 nm and 300 nm Number of samples: Length of the sample: 20 m ± 0,01 m Temperature cycling (see EN 3745-402) Number of cycles: 401 Cable accelerated ageing Visual examination in accordance with EN 3745-201 – Maximum permissible variation in attenuation: < 0,5 dB, – Maximum permissible variation in attenuation after 24 h: < 0,3 dB, – Residual maximum permissible variation in attenuation: < 0,2 dB Number of samples: Length of the sample: 100 m ± 0,05 m Diameter of the mandrel: 250 mm Number of temperature cycles: Test is carried out at the temperature of 125 °C 402 Temperature cycling High temperature: 125 °C Low temperature: −55 °C Duration at extreme temperatures: 30 Number of samples: Number of cycles: Rate of change: °C per BS EN 4641-101:2015 EN 4641-101:2015 (E) Table — Fibre optic cable test methods (2 of 5) Test method EN 3745404 Designation of test Thermal shock Test conditions and results Visual examination in accordance with EN 3745-201 Maximum permissible variation in attenuation during test sequence and after 24 h - ∆α < 0,7 dB The maximum displacement of the fibre value shall be ≤ 200 µm relative to the outer jacket Number of samples: Length of the sample: 20 m ± 0,01 m Number of temperature cycles: Test is carried out at extreme temperatures 405 Low/High temperature bend Not applicable 406 Cold bend Not applicable 407 Flammability Flame extinction before 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 410 Thermal life Maximum permissible variation in attenuation: < dB Number of samples: Length of the specimen: 100 m ± 0,05 m Lifetime shall be ≥ 100 000 h 411 Method Resistance to fluids Occasional contamination test method Visual examination in accordance with EN 3745-201 Maximum variation of weight: ∆m = % No cracks – Low colour modification Fluids as per EN 3909 may cover usual needs, additional fluids may be requested by end user 412 Humidity resistance Visual examination in accordance with EN 3745-201 Maximum residual attenuation: < 0,2 dB Maximum variation of weight: ∆m = % Number of sample: Length of the specimen: 20 m ± 0,01 m Number of cycles: 15 501 Fibre proof test ≥1% 503 Scrape abrasion Maximum permissible variation of attenuation: < 1dB Visual examination in accordance with EN 3745-201: the optical fibre shall not be visible Number of samples: Load to be applied: N Length of the sample: 0,75 m ± 0,01 m Number of cycles: 100 BS EN 4641-101:2015 EN 4641-101:2015 (E) Table — Fibre optic cable test methods (3 of 5) Test method EN 3745504 Designation of test Micro-bending Test conditions and results Maximum permissible variation in attenuation: < dB Permissible residual attenuation 15 after removing the load: < 0,1 dB Visual examination in accordance with EN 3745-201 Number of samples: Load to be applied: 10 N Rate at which the load is applied: 10 N/min Diameter of the mandrel = mm 505 Tensile strength For F = 20 N, maximum permissible variation in attenuation: < 0,5 dB Rupture load: 20 N Number of specimens: 506 Impact Permissible change in attenuation after the test: < 0,5 dB The test is carried out at the temperature of 20 °C Number of samples: Length of sample: m ± 0,01 m Load to be applied: N Radius R of the intermediate piece:15 mm Drop: 0,15 m Number of impact: 507 Dynamic cut through Not applicable 508 Torsion Maximum permissible variation of attenuation: – For one cycle : < 0,2 dB, – For 000 cycles < 0,5 dB Length of sample: m ± 0,01 m Number of cycles: 000 Load to be applied: 20 N Distance between the rotating grip and the fixed grip: 0,25 m ± 0,01 m 509 Kink No kink as shown in the standard with a minimum bending radius of 10 X optical cable outside diameter: 10 mm Maximum permissible variation of attenuation: < dB Length of specimen: m ± 0,01 m Loop minimum diameter value: 20 mm 510 Bend Maximum variation of attenuation: < 0,2 dB Residual attenuation after removing the specimen from the test equipment < 0,1 dB Visual examination in accordance with EN 3745-201 Length of sample: 10 m ± 0,01 m Load to be applied (M) to ensure contact between the cable and the mandrel:10 N Diameter of the mandrel D = 10 mm Number (N) of turns: 10 BS EN 4641-101:2015 EN 4641-101:2015 (E) Table — Fibre optic cable test methods (4 of 5) Test method EN 3745511 Designation of test Cable to cable abrasion Test conditions and results The outer diameter of electrical cable (DR) is equivalent to AWG 20 The definition of failure is the exposure of the conductor for electrical cable and the exposure of the material under the outer jacket for optical cable in both conditions A and B Category A: electrical cable + optical cable – Minimum number of cycles = 500 000, – Load = N Category B: optical cables – Minimum number of cycles = 000 000, – Load = N 512 Flexure endurance Examination of test specimen for damage in accordance with EN 3745-201 "visual examination" Maximum permissible variation of attenuation: < 0,2 dB Number of samples: Length of the sample: m ± 0,01 m Load to be applied: 10 N Diameter of the mandrel: 10 mm Number of cycles: 500 513 Crush resistance Applicable Number of samples: Length of the sample: > m Load to be applied: 500 N Area of load: 100 mm Load duration: 15 mm Maximum variation of attenuation: < 0.1 dB 514 Bend twist Not applicable 515 Buffer 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 test duration under both the flaming and non-flaming conditions The value must be measured at the end of the test 602 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: Length of sample: m ± 0,01 m Blade design (see EN 2812) Load defined in relation to the cable construction to be stripped: F ≤ N/10 mm Total Length to be stripped: 50 mm 703 10 Durability of manufacturers identity markings Not applicable BS EN 4641-101:2015 EN 4641-101:2015 (E) Table — Fibre optic cable test methods (5 of 5) Test method EN 3745- Designation of test Test conditions and results 705 Contrast measurement Not applicable 706 Durability of user identification markings Not applicable EN 3838 except "Voltage test" 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 for optical fibre See Table Table Test method Designation of test Test conditions and results Numerical aperture: 0,275 ± 0,015 (0,26 to 0,29) TIA/EIA-455-30-B Effective group index of refraction Number of sample: Length of the sample: m ± 0,01 m Wavelength: 850 nm ± 20 nm 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 (λ0): 320 nm ≤ λ0 ≤ 365 nm Zero dispersion slope (S0): S0 ≤ 11 ps/(nm •km) TIA/EIA-455-175-B Fibre chromatic dispersion Central operating wavelength (lλc): 750 nm ≤ λc ≤ 450 nm Chromatic Dispersion: D (λc) ≈ S0 / [ λc − (λ0 / λc )] 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: km Number of sample: Length of reference fibre < m per km of tested sample 11 BS EN 4641-101:2015 EN 4641-101:2015 (E) 6.4 Fluids test See Table Table — List of fluids Fluids family Type Fluid number see EN 3909 Test temperature ± °C Duration 24 h Fuel Kerosene 70 Phosphate base 70 Silicone base 80 Mineral base 80 Mineral base 125 Mineral base 70 Synthetic oil — Solvent 10 50 Solvent 11 25 De-icing Aircraft 15 25 Cooling Coolant 25 Radar coolant 19 — Hydraulic fluid Oils Cleaning fluids Quality assurance See EN 9133 8.1 Designation, marking and colours Designation EXAMPLE Description block Identity block CABLE FIBRE OPTIC EN4641-101 Number of the basic standard Product standard 8.2 Marking Not applicable 8.3 Colours The colour of the outer jacket will be black 12 BS EN 4641-101:2015 EN 4641-101:2015 (E) 9.1 Delivery conditions 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 is: 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 13 This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY 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