ASD-STAN PREN 4641-202-2017 Aerospace series Cables optical 125 diameter cladding Part 202 Semi-loose ruggedized simplex construction 9 125 SM fibre nominal 2 74 mm outside diamete.pdf

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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4641-202 Edition P 1 June 2017 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.org ICS: Descriptors: ENGLISH

2、 VERSION Aerospace series Cables, optical, 125 m diameter cladding Part 202: Semi-loose, ruggedized simplex construction 9/125 m SM fibre nominal 2,74 mm outside diameter Product standard Luft- und Raumfahrt Lichtwellenleiterkabel, Mantelauendurchmesser 125 m Teil 202: Kompaktader, widerstandsfhige

3、Simplexkonstruktion, 9/125 m SM-Faser, Kabelauendurchmesser 2,74 mm Produktnorm Srie arospatiale Cbles, optiques, diamtre extrieur de la gaine optique 125 m Partie 202 : Cble structure semi-libre, fibre SM 9/125 m, diamtre extrieur 2,74 mm Norme de produit This “Aerospace Series“ Prestandard has bee

4、n drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequ

5、ent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, the ASD-STAN prEN wi

6、ll be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by wi

7、thdrawing any national standards conflicting with the EN. ASD-STAN Technical Committee approves that: “This document is published by ASD-STAN for the needs of the European Aerospace Industry. The use of this standard is entirely voluntary, and its applicability and suitability for any particular use

8、, including any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-STAN reviews each standard and technical report at least every five years at which time it may be revised, reaffirmed, stabilized or cancelled. ASD-STAN invites you to send your written comments or an

9、y suggestions that may arise. All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of ASD-STAN. Order details: E-m

10、ail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1st June 2017 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2017 ASD-STAN prEN 4641-202:2017 (E) 2 prEN4641-202:2017(E) Contents Page Forewor

11、d 2 1 Scope 3 2 Normative references 3 3 Terms and definitions 3 4 Required characteristics . 3 5 Cable construction 4 6 Materials . 5 7 Test methods and performances . 5 8 Tooling 12 9 Quality assurance . 12 10 Designation and marking 12 11 Delivery conditions 12 12 Storage 13 13 Technical specific

12、ation . 13 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 464

13、1-202:2017 (E) 3 prEN4641-202:2017(E) 1 Scope This product standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance for a fibre optic cable with a 9/125 m. Single mode fibre core, 2,74 mm outside cable diameter and of semi-loose construction. The

14、 basic construction is the cable defined in EN 4641-102 with added sheaths for ruggedized usages. 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 a

15、pplies. 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 electric cables EN 3475-601, Aerospace series Cables, electrical, aircraft use Test methods

16、 Part 601: Smoke density EN 3745, (all parts), Aerospace series Fibres and cables, optical, aircraft use Test methods 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 electrical and opti

17、cal components and sub-assemblies EN 4641-001, Aerospace series Cables, optical, 125 m diameter cladding Part 001: Technical specification EN 4641-102, Aerospace series Cables, optical, 125 m diameter cladding Part 102: Semi-loose 62,5/125 m GI fibre nominal 1,8 mm outside diameter Product standard

18、EN 4641-201, Aerospace series Cables, optical 125 m diameter cladding Part 201: Semi-loose structure 9/125 m SM fibre nominal 1,8 mm outside diameter Product standard TR 4647, Aerospace series Termination procedure for EN 4639 optical contact 1) 3 Terms and definitions For the purposes of this docum

19、ent, the following 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. 1) Published as ASD-STAN Technical Report at the date

20、of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN), (www.asd-stan.org). prEN 4641-202:2017 (E) 4 prEN4641-202:2017(E) 5 Cable construction See Figure 1 and Table 1. Key 1 EN 4641-201 fibre optic cable 2 Glass braid 3 Jacket Extruded f

21、luoropolymer Figure 1 Table 1 Property Value EN 4641-201 fibre optic cable (1,80 0,12) mm Finished cable diameter (2,74 0,25) mm Cable mass 10,7 g/m Operating temperature 65 C to 150 C Fibre cut-off wavelength 1 260 nm Minimum bend radius (20 C) Installation : 12 mm (4 x outside diameter) Long term

22、: 27 mm (10 x outside diameter) Storage : 54 mm (20 x cable outside diameter) prEN 4641-202:2017 (E) 5 prEN4641-202:2017(E) 6 Materials See Table 2. Table 2 Element Material Fibre cable component EN 4641-201 fibre optic cable Glass braid Fibre glass braid Outer jacket Extruded fluoropolymer 7 Test m

23、ethods and performances 7.1 Tests in accordance with EN 3745-100 7.1.1 Optical fibre See EN 4641-201. 7.1.2 Fibre optical cable See EN 4641-201. 7.1.3 Ruggedized fibre optic cable See Table 3. prEN 4641-202:2017 (E) 6 prEN4641-202:2017(E) Table 3 Optical fibre performance requirements (1 of 4) Test

24、method EN 3745- Designation of test Test conditions and results 201 Visual inspection 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:

25、 3 m 203 Outer jacket outside diameter (2,74 0,25) mm 205 Longitudinal stability The change in longitudinal dimensions between A and B shall not exceed the maximum value of 15 mm. Number of samples : 3 Sample length: (3,5 0,03) m Test method 3745-402 25 Cycles 301 Method D Cable attenuation Max atte

26、nuation 0,80 dB/km at 1 310 nm; 0,60 dB/km at 1 550 nm at 20 C Minimum sample length: 100 m 305 Cable immunity to ambient light Applicable; Qualified by similarity as this is an EN 4641-201 component test 306/402 Attenuation during temperature cycling Visual examination in accordance with EN 3745-20

27、1 Maximum variation of attenuation: 0, 30 dB at 1 310 nm Test method EN 3745-402 25 cycles High temperature: 150 C Low temperature: 65 C Duration at extreme temperatures: 30 min Rate of change: 5 C per minute Number of samples: 3 Sample length: 10 m 401 Cable accelerated aging Applicable; Qualified

28、by similarity as this is an EN 4641-201 component test 404 Thermal shock Visual examination in accordance with EN 3745-201 Maximum permissible variation in attenuation during test sequence and after 24 h: 0,30 dB at 1 310 nm High temperature: 150 C Low temperature: 65 C Duration at extreme temperatu

29、res: 30 min Number of samples: 3 Sample Length: 10 m Number of temperature cycles: 25 406 Cold bend Maximum permissible variation in attenuation: 0,30 dB at 1 310 nm Visual examination in accordance with EN 3745-201 1 h soak at: 65 C Mandrel size: 50 mm Mandrel wraps: 10 Number of samples: 1 Sample

30、length: 10 m 407 Flammability No flaming particles shall fall from the sample during the test and the tissue paper shall not be ignited. Period of flame application: 30 s Maximum burn length: 75 mm Self extinguish after 5 s Number of samples: 3 Sample length: (1 0,05) m prEN 4641-202:2017 (E) 7 prEN

31、4641-202:2017(E) Table 3 Optical fibre performance requirements (2 of 4) Test method EN 3745- Designation of test Test conditions and results 410 Thermal life Applicable; Qualified by similarity as this is an EN 4641-201 component test 411 Method 2 Resistance to fluids Applicable; Qualified by simil

32、arity as this is an EN 4641-201 component test 412 Humidity resistance Applicable; Qualified by similarity as this is an EN 4641-201 component test 503 Scrape abrasion Maximum variation in attenuation: 0,30 dB at 1 310 nm. Visual examination in accordance with EN 3745-201 Jacket shall not split, cra

33、ck or expose the strength member Number of samples: 3 Sample length: 3,0 m Ambient test: Load: 7,0 N Number of cycles: 500 High temperature test (150 C): Load: 2,2 N Number of cycles: 500 504 Micro-bending Maximum variation in attenuation: 0,30 dB at 1 310 nm Maximum residual attenuation 15 min afte

34、r removing the load: 0,10 dB at 1 310 nm. Visual examination in accordance with EN 3745-201. Number of samples : 3 Load: 100 N Rate load is applied: 50 N/min Mandrel size = 10 mm 505 Tensile strength Maximum variation in attenuation: 0,30 dB at 1 310 nm Mandrel diameter: 28 mm Pulling speed: (50 10)

35、 mm/min Number of samples: 3 Sample length: 5 m 506 Impact Maximum variation in attenuation: 0, 30 dB at 1 310 nm Jacket shall not crack or split Test temperature: 20 C Load to be applied: 10 N Radius intermediate piece: 15 mm Drop height: 150 mm Number of impacts: 2 Number of samples: 3 Sample leng

36、th: 700 mm 507 Cut-through 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: Ambient (20 C): 330 N High temperature (150 C): 85 N Duration of load application: 1 min Number of samples:

37、3 Sample length: 3 m prEN 4641-202:2017 (E) 8 prEN4641-202:2017(E) Table 3 Optical fibre performance requirements (3 of 4) Test method EN 3745- Designation of test Test conditions and results 508 Torsion Added to test criterion: No cracking or splitting of cable jacket Maximum variation of attenuati

38、on: at 1 310 nm For one cycle: 0,10 dB For 1 000 cycles: 0,30 dB Number of samples: 3 Sample length: 3,0 m Load to be applied: 150 N Number of cycles: 1 000 Distance between the rotating grip and the fixed grip: (0,25 0,05) m 509 Kink No kink shall occur at a diameter greater than minimum loop diame

39、ter Maximum permissible variation of attenuation: 0,10 dB at 1 310 nm Minimum loop diameter: 20 mm Number of samples: 3 Sample length: 10 times bend radius 510 Method B Bend Maximum variation of attenuation: 0,30 dB at 1 310 nm Residual attenuation after removing the specimen from the test equipment

40、: 0,10 dB at 1 310 nm. Visual examination in accordance with EN 3745-201 Mandrel diameter: 25 mm Number of turns: 10 Number of samples: 1 Sample length: (10 0,05) m 511 Cable to cable abrasion Applicable; Qualified by similarity as this is an EN 4641-201 component test 512 Flexure endurance Examinat

41、ion of test specimen for damage in accordance with EN 3745-201 (visual examination). Maximum permissible variation in attenuation: 0, 30 dB at 1 310 nm. Jacket shall not split or crack Number of samples: 3 Length of the sample: 5 m Load to be applied: 11,5 N Diameter of mandrel: 30 mm Number of cycl

42、es: 100 000 513 Crush resistance Maximum variation of attenuation: 0,05 dB at 1 310 nm No cracking or splitting of cable jacket Load: 445 N Area of load: 100 mm2 Number of samples: 3 Sample length: 3 m 516 Severe bend Examination of test specimen for damage in accordance with EN 3745-201 (visual exa

43、mination). No fibre breakage. Load to be applied: 45 N Maximum edge radius: 127 m Number of cycles : One bend in each direction Number of samples : 3 Length of the sample: 3 m prEN 4641-202:2017 (E) 9 prEN4641-202:2017(E) Table 3 Optical fibre performance requirements (4 of 4) Test method EN 3745- D

44、esignation of test Test conditions and results 517 Cable tie clamping Typical requirements: Maximum transmittance change: 0,05 dB at 1 310 nm. Mandrel diameter: (13 1) mm Number of cable ties applied: 6 Cable tie tension setting: #1 Number of samples: 3 Sample length: 4 m 601 Smoke density Test meth

45、od: EN 3475-601 Specific optical smoke density (average) Ds 50 within 4 min test duration under both the flaming and non-flaming conditions. Value must be measured at the end of the test. 602 Toxicity HF 300 ppm HCL 150 ppm HCN 150 ppm SO2 100 ppm H2S 100 ppm NO 100 ppm NO2 100 ppm CO 1 000 ppm 603

46、Nuclear radiation Not applicable due to application. 701 Cable stripping Jacket: (30 10) N per 30 mm Blade design (See EN 2812) Pulling speed (25 to 50) mm/min 703 Durability of manufacturers identity markings Examine marking in accordance with EN 3745-201 visual examination Number of samples: 3 Sam

47、ple length: (2 0,01) m Load: 1,5 N Number of cycles: 125 Not applicable if marker tape used under outer jacket. 705 Contrast measurement 50 % for UV laser marked cable Not applicable if marker tape used under outer jacket. 706 EN 3838 except 6.8 Durability of user identification markings Not applica

48、ble due to application. 7.2 Fluids test See Table 4. prEN 4641-202:2017 (E) 10 prEN4641-202:2017(E) Table 4 List of fluids (1 of 2) Test fluid No. Fluid family Type Test fluid to be used (Consider Note 1) Fluid in service (for reference) Test temperature 2 C Flash point C New Old 1a 1 Fuels Gasoline Toluene 30 % Isooctane 70 % v/v ISO 1817 Liquid B AVGAS-100LL NATO-F-18 40 4 1b 2 (Hydro Carbon) Kerosene ISO 1817 Liquid F AVTUR/FSI NATO-F-34 (JP-8) 70 40 AVTUR NATO-F-35 AVTAG/FSII NATO-F-40 (JP-4) AVCAT/FSII NATO-F-44 (JP5) 1c n/a Biofuel As specified in