1、BS EN4641-102:2009Aerospace series Cables, optical 125moutside diametercladdingPart 102: Semi-loose 62,5/125mGIfibre nominal 1,8 mm outside diameter Product standardICS 49.060BRITISH STANDARDNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWThis British Standard was published und
2、er the authority of the Standards Policy and Strategy Committee on 31 July2009 BSI 2009ISBN 978 0 580 57825 0Amendments/corrigenda issued since publicationDate CommentsBS EN 4641-102:2009National forewordThis British Standard is the UK implementation of EN 4641-102:2009. The UK participation in its
3、preparation was entrusted to TechnicalCommittee ACE/6, Aerospace 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
4、 are responsible for its correct application. Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 4641-102:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 4641-102February 2009ICS 49.060English VersionAerospace series - Cables, optical 125 m outside diametercl
5、adding - Part 102: Semi-loose 62,5/125 m GI fibre nominal1,8 mm outside diameter - Product standardSrie arospatiale - Cble, optique, diamtre extrieur de lagaine optique 125 m - Partie 102 : Cble structure semilibre, fibre gradient dindice 62,5/125 m, diamtreextrieur 1,8 mm - Norme de produitLuft- un
6、d Raumfahrt - Lichtwellenleiterkabel,Claddingdurchmesser 125 m - Teil 102: HalbfesterLeiteraufbau GI 62,5/125 m, FaserKabelauendurchmesser 1,8 mm - ProduktnormThis European Standard was approved by CEN on 6 September 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations whic
7、h 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 CEN member.This European Stand
8、ard 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 members are the national standa
9、rds 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, Switzerland and United Kingdo
10、m.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. EN 4641-102:2009: EBS EN 4641-
11、102:2009EN 4641-102:2009 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .54 Required characteristics .55 Cable construction 56 Materials .67 Test methods and performances .68 Tooling . 129 Quality assurance . 1210 Designation, marking and colours 1311 Delivery
12、 conditions . 1312 Storage . 13BS EN 4641-102:2009EN 4641-102:2009 (E) 3 Foreword This document (EN 4641-102:2009) 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
13、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 endo
14、rsement, at the latest by August 2009, and conflicting national standards shall be withdrawn at the latest by August 2009. 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 identi
15、fying 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greec
16、e, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 4641-102:2009EN 4641-102:2009 (E) 4 1 Scope This product standard specifies the general characterist
17、ics, conditions for qualification, acceptance and quality assurance for a fibre optic cable with a 62,5/125 m Graded Index fibre nominal, 1,8 mm outside diameter and of semi-loose buffer construction. 2 Normative references The following referenced documents are indispensable for the application of
18、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 2424, Aerospace series Marking of aerospace products EN 2812, Aerospace series Stripping of electrical cables 1EN 3475-601
19、, Aerospace series Cables, electrical, aircraft use Test methods Part 601: Smoke density EN 3745-100, 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 1EN 3
20、909, Aerospace series Test fluids and test methods for electric components and sub-assemblies EN 4641-001, Aerospace series Cables, optical 125 m diameter cladding Part 001: Technical specification 1EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard p
21、arts ISO 1817, Rubber, vulcanized Determination of the effect of liquids ISO 11075, Aircraft De-icing/anti-icing fluids ISO type I ISO 11078, Aircraft De-icing/anti-icing fluids ISO types II, III and IV TR 4647, Aerospace series Fibres and cables, optical aircraft use Technical Report Termination pr
22、ocedure for EN 4639 contact 2STANAG 3748, Hydraulic fluid, petroleum (H-515, H-520 and C-635) and polyalphaolefin (H-537, H-538 and H-544) 3MIL-PRF-87252C, Coolant fluid, hydrolytically stable, dielectric 4AMS 1428, Fluid, aircraft deicing/Anti-icing, non-Newtonian (pseudoplastic), SAE types II, III
23、, and IV 5NSA 307110, Fluid Hydraulic phosphate ester Base fire resistant And all parts quoted in this standard. 1 Published as ASD Prestandard at the date of publication of this standard. 2 In preparation at the date of publication of this standard. 3 Published by: NATO Military Agency for Standard
24、ization (MAS); B-1110 Brussels, Belgium. 4 Published by: Department of Defense (DoD), the Pentagon, Washington, DC 20301, USA. 5 Published by: Society of Automotive Engineers, Inc. (SAE), 400 Commonwealth Drive, Warrendale, PA 15096-0001, USA. BS EN 4641-102:2009EN 4641-102:2009 (E) 5 3 Terms and de
25、finitions 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 See
26、 Figure 1 and Table 1. Key 1 Core 4 Secondary buffer 2 Cladding 5 Strength member 3 Primary buffer 6 Jacket Figure 1 Table 1 Property Value Core (62,5 3,0) m Cladding (125 2,0) m Primary coating (245 5) m Finished cable diameter (1,88 0,12) mm Cable mass 4,65 g/m Operating temperature 65 C to 150 C
27、Attenuation at 850 nm (20 C) 200 N 1 23456 BS EN 4641-102:2009EN 4641-102:2009 (E) 6 6 Materials See Table 2. Table 2 Element Material Fibre Core Silica Cladding Primary coating Polyacrylate Primary buffer PTFE Secondary buffer Polyimide Barrier layer PTFE (Non-sealed) Mechanical strength reinforcem
28、ent Aramid/Fibre glass woven braid Outer jacket Extruded fluoropolymer 7 Test methods and performances 7.1 Tests in accordance with EN 3745-100 7.1.1 Optical fibre See Table 3. Table 3 Optical fibre test methods Designation of test Test method EN 3745- Test conditions and results Fibre visual examin
29、ation 201 Pass Fibre dimensions 202 Method D: Core diameter: (62,5 3) m Optical fibre proof test 501 1 % Attenuation 301 Method D Maximum attenuation 4 dB/km at 850 nm, 2 dB/km at 1 300 nm at 20 C Minimum sample length: 100 m Numerical aperture 302 Numerical aperture: 0,275 0,015 at = (850 20) nm Sa
30、mple length: 2 m Bandwidth 303 Bandwidth 200 MHz/km at 850 nm Bandwidth 600 MHz/km at 1 300 nm Number of samples: 1 Minimum sample length: 1 km Central wavelengths: (850 10) nm, (1 300 10) nm Spectral width ( 3 dB): 10 nm for 850 nm and 1 300 nm BS EN 4641-102:2009EN 4641-102:2009 (E) 7 7.1.2 Fibre
31、optic cable See Table 4. Table 4 Fibre optic cable test methods Designation of test Test method EN 3745- Test conditions and results Visual examination 201 The outer jacket shall have the correct identification as specified in this standard. The coating shall be continuous and free of visible defect
32、s such as lumps, abrasions, cracks, splits or blisters. Number of samples: 1 Sample length: 3 m Primary coating outside diameter 203 (245 5) m Buffer diameter 203 (915 60) m Outer jacket outside diameter 203 (1,88 0,12) mm Outer jacket wall thickness 203 Minimum wall: 0,10 mm Longitudinal stability
33、205 Change in longitudinal dimensions between A and B: 5 mm Number of samples: 3 Sample Length: (3,5 0,03) m Perform temperature cycling Test method EN 3745-402 25 cycles Attenuation 301 Method D Maximum attenuation 4 dB/km at 850 nm, 2 dB/km at 1 300 nm at 20 C Minimum sample length: 100 m Cable im
34、munity to ambient light 305 Level of optical power 50 dBm Sample length exposed to light source: 10 m Attenuation during temperature cycling 306/402 Visual examination in accordance with EN 3745-201. Maximum variation of attenuation: 0,25 dB at 850 nm and 1 300 nm Test method EN 3745-402 10 cycles H
35、igh temperature: 150 C Low temperature: 65 C Duration at extreme temperatures: 30 minutes Rate of change: 5 C per minute Number of samples: 3 Sample length: 30 m Cable accelerated aging 401 Visual examination in accordance with EN 3745-201. Maximum variation in attenuation: 10 m Flammability 407 No
36、flaming particles shall fall from the sample during the test and the tissue paper shall not be ignited Period of flame application: 30 seconds Maximum burn length: 75 mm Self extinguish after 5 sec Number of samples: 3 Sample length: (1 0,05) m Thermal life 410 Temperature rating: 150 C at 100 000 h
37、ours Resistance to fluids 411 Method 2 Visual examination in accordance with EN 3745-201 Maximum variation of weight: m = 5 % No cracks Low colour modification Readable marking See 6.2 for fluids table Humidity resistance 412 Visual examination in accordance with EN 3745-201 Maximum residual attenua
38、tion: 700 mm Cut-through 507 Visual examination in accordance with EN 3745-201 Monitor attenuation to determine fibre breakage of the sample during testing at 20 C and 150 C Load to be applied: 40 N Duration of load application: 1 min Number of samples: 3 Sample length: 3 m Torsion 508 No cracking o
39、r splitting of cable jacket Maximum variation of attenuation: For one cycle: 10 times bend radius Bend 510 Method A 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 Load to ensu
40、re contact between cable and mandrel: 20 N Mandrel diameter: 25 mm Number of turns: 10 Number of samples: 1 Sample length: (10 0,01) m Bend 510 Method B Maximum transmittance change: 0,25 dB Mandrel diameters: 20 mm Mandrel spacing: 600 mm Number of samples: 1 Sample length: 10 m Cable to cable abra
41、sion 511 Cat A: 1 optical, 1 copper (16 AWG DR) Minimum number of cycles: 2 800 000 Load: 10 N Cat B: 2 optical cables Minimum number of cycles = 500 000 Load: 10 N No exposure of first material under outer jacket Number of samples: 3 Sample length: 300 mm Flexure endurance 512 Visual examination in
42、 accordance with EN 3745-201 Maximum permissible variation in attenuation: 0,25 dB at 850 nm and 1 300 nm Load: 5,0 N Mandrel diameter: 18 mm Number of cycles: 100 000 Number of samples: 3 Sample length: 5 m Crush resistance 513 Maximum variation of attenuation: 0,05 dB No cracking or splitting of c
43、able jacket Load: 445 N Area of load: 100 mm2Number of samples: 3 Sample length: 5 m Bend twist 514 Not applicable Buffer insertion force 515 Maximum insertion force: 2,2 N for 0,45 mm movement on both ends Number of samples: 2 Sample length: 4 m continued BS EN 4641-102:2009EN 4641-102:2009 (E) 11
44、Table 4 Fibre optic cable test methods (concluded) Designation of test Test method EN 3745- Test conditions and results Severe bend 516 Not applicable unless specified by customer for installationTypical requirements: No fibre breakage Mass: 1,6 kg Mandrel bend radius (127 25) m Cable rotation: 1 cy
45、cle Cable tie clamping 517 Not applicable unless specified by customer for installation Typical requirements: Maximum transmittance change: 0,05 dB Mandrel diameter: (13 1) mm Number of cable ties applied: 6 Cable tie tension setting: # 1 Number of samples: 3 Sample length: 4 m Smoke density 601 Tes
46、t method : EN 3475-601 Specific optical smoke density (average) Ds 50 within 4 minutes test duration under both the flaming and non-flaming conditions Value must be measured at the end of the test Toxicity 602 HF 300 ppm HCL 150 ppm HCN 150 ppm SO2 100 ppm H2S 100 ppm NO 100 ppm NO2 100 ppm CO 1 000
47、 ppm Nuclear radiation 603 Not applicable Cable stripping 701 Buffer: 2 N per 30 mm Jacket: 20 N per 30 mm Blade design (see EN 2812) Pulling speed 25 mm/min to 50 mm/min Durability of manufacturers identity markings 703 Examine marking in accordance with EN 3745-201 visual examination Number of sam
48、ples: 3 Sample length: (2 0,01) m Load: 1,5 N Number of cycles: 125 Not applicable if marker tape used under outer jacket Contrast measurement 705 40 % for UV laser marked cable Durability of user identification markings 706 EN 3838 Except 6.8 Not applicable General test conditions: The tests shall be performed with the following launch condition: 70 % of the fiber core diameter and 70 % of the fiber NA should be filled by using a 50/125 um fiber launch cable. BS EN 4641-102:2009EN 4641-102:2009 (E) 12 7.2 Fluids test See Table 5. Table 5 List of fluids 6Fluids family Type Fluids to be used
