ASD-STAN PREN 4641-201-2017 Aerospace series Cables optical 125 diameter cladding Part 201 Semi-loose structure 9 125 SM fiber nominal 1 8 mm outside diameter Product standard (Edi.pdf

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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4641-201 Edition P 1 May 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 201: Semi-loose structure 9/125 m SM fiber nominal 1,8 mm outside diameter Product standard Luft- und Raumfahrt Lichtwellenleiterkabel, Mantelauendurchmesser 125 m Teil 201: Kompaktader, 9/125 m SM-Faser, Kabelauendurchmesser 1,8

3、 mm Produktnorm Srie arospatiale Cbles, optiques, diamtre extrieur de la gaine optique 125 m Partie 201 : Cble structure semi-libre, fibre SM 9/125 m, diamtre extrieur 1,8 mm Norme de produit This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace an

4、d 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. Subsequent to the publication of this Prestandard, the technical content

5、 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 will be submitted as a draft European Standard (prEN) to CEN (Europ

6、ean 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 withdrawing any national standards conflicting with the EN. ASD-STA

7、N 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, including any patent infringement arising therefrom, is the sol

8、e 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 any suggestions that may arise. All rights reserved. No parts of th

9、is 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-mail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Editi

10、on approved for publication 1st May 2017 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2017 ASD-STAN prEN 4641-201:2017 (E) 2 prEN4641-201:2017(E) Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Terms and definitions 3 4

11、 Required characteristics . 3 5 Cable construction 4 6 Materials . 5 7 Test methods and performances . 5 8 Tooling 13 9 Quality assurance . 13 10 Designation and marking 13 11 Delivery conditions 13 12 Storage 14 13 Technical specification . 14 Foreword This standard was reviewed by the Domain Techn

12、ical 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 4641-201:2017 (E) 3 prEN4641-201:2017(E) 1 Scope This product standar

13、d specifies the general characteristics, conditions for qualification, acceptance and quality assurance for a fibre optic cable with a 9/125 m, SM fibre core, and 1,8 m outside cable diameter and of semi-loose buffer construction. 2 Normative references The following documents, in whole or in part,

14、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 2424, Aerospace series Marking of aerospace produc

15、ts EN 2812, Aerospace series Stripping of electric cables EN 3475-601, Aerospace series Cables, electrical, aircraft use Test methods 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

16、on user-applied markings on aircraft electrical cables EN 3909, Aerospace series Test fluids and test methods for electrical and optical components and sub-assemblies EN 4641-001, Aerospace series Cables, optical, 125 m diameter cladding Part 001: Technical specification TR 4647, Aerospace series Te

17、rmination procedure for EN 4639 optical contact 1) IEC 60793-1-45, Optical fibres Part 1-45: Measurement methods and test procedures Mode field diameter 2) 3 Terms and definitions For the purposes of this document, the following terms and definitions given in EN 3745-100 apply. 4 Required characteri

18、stics 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 of publication of this standard by Aerospace and Defence Industries Association of Europe-

19、Standardization (ASD-STAN), (www.asd-stan.org). 2) Published by: IEC International Electrotechnical Commission http:/www.iec.ch/ prEN 4641-201:2017 (E) 4 prEN4641-201:2017(E) 5 Cable construction See Figure 1 and Table 1. Key 1 Core 2 Cladding 3 Primary buffer 4 Primary buffer 5 Bondable layer 6 Bar

20、rier 7 strength member 8 Cable jacket Figure 1 Table 1 Property Value Mode field diameter 1 310 nm: (9,0 0,5) m 1 550 nm: (10,1 0,6) m Cladding (125 1,0) m Primary Coating (245 10) m Secondary buffer diameter (0,9 0,06) mm Finished cable diameter (1,8 0,12) mm Cable mass 4,65 g/m Finished cable diam

21、eter (0,9 0,06) mm Cable mass 1,0 0,2 g/m Operating temperature 65 C to 150 C Fibre cut-off wavelength 1,260 nm Minimum bend radius (+ 20 C) Installation : 10 mm (5 x outside diameter) Long term : 20 mm (10 x outside diameter) Storage : 40 mm (20 x cable outside diameter) Tensile strength 200 N prEN

22、 4641-201:2017 (E) 5 prEN4641-201:2017(E) 6 Materials See Table 2. Table 2 Element Material Fibre Core Silica Cladding Primary buffer Polyacrylate Primary buffer PTFE Bondable layer Polyimide Barrier layer PTFE (Non-sealed) Strength member Aramid/fibre glass woven braid Outer jacket Extruded fluorop

23、olymer 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 performance requirements Test method EN 3745- Designation of test Test conditions and results 201 Visual examination Pass IEC 60793-1-45 Fibre Mode Field Diameter (M

24、FD) MFD: (9,0 0,5) m 501 Optical fibre proof test 1 % 301 Method D Fibre attenuation Maximum attenuation 0,7 dB/km at 1 310 nm, 0,5 dB/km at 1 550 nm at 20 C Minimum sample length: 100 m prEN 4641-201:2017 (E) 6 prEN4641-201:2017(E) 7.1.2 Fibre optic cable See Table 4. Table 4 Fibre optic cable perf

25、ormance requirements (1 of 5) Test 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,

26、 splits or blisters. Number of samples: 1 Sample length: 3 m 203 Primary coating outside diameter (245 10) m 203 Buffer diameter (915 60) m 203 Outer jacket outside diameter (1,8 0,12) mm 205 Method A Longitudinal stability Change in longitudinal dimensions between A and B: 5 mm. Number of samples:

27、3 Sample length: (3,5 0,03) m Perform temperature cycling Test method EN 3745-402: 25 cycles 301 Method D Cable attenuation Maximum attenuation 0,70 dB/km at 1 310 nm, 0,50 dB/km at 1 550 nm at 20 C. Minimum sample length: 100 m 305 Cable immunity to ambient light Level of optical power 50 dB m Samp

28、le length exposed to light source: (10 0,1) m 306/402 Attenuation during temperature cycling Visual examination in accordance with EN 3745-201 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 t

29、emperatures: 30 min Rate of change: 5 C per min Number of samples: 3 Sample length: 10 m 401 Cable accelerated aging Visual examination in accordance with EN 3745-201 Maximum variation in attenuation: 0,30 dB Variation in attenuation after 24 h: 0,10 dB at 1 310 nm Residual variation in attenuation:

30、 0,10 dB at 1 310 nm Mandrel diameter: 250 mm Test temperature: 150 C Number of temperature cycles: 1 Number of samples: 1 Sample length: (100 0,05) m 404 Thermal shock Visual examination in accordance with EN 3745-201 Maximum permissible variation in attenuation during test sequence and after 24h:

31、0,30 dB at 1 310 nm. High temperature: 150 C Low temperature: 65 C Duration at extreme temperatures: 30 min Number of samples: 3 Sample length: 10 m Number of temperature cycles: 25 prEN 4641-201:2017 (E) 7 prEN4641-201:2017(E) Table 4 Fibre optic cable performance requirements (2 of 5) Test method

32、EN 3745- Designation of test Test conditions and results 405 Low/High temperature bend Visual examination in accordance with EN 3745-201 Maximum variation in attenuation: 0, 30 dB at 1 310 nm. High temperature: 150 C Low temperature : 65 C 4 h soak at each temperature extreme. Mandrel diameter: (50

33、1) mm Cable load weight: (3,9 0,1) kg Number of samples: 1 Sample length: 5 m. 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 1) mm Mandrel wraps: 10 Number of samples: 1 Sample le

34、ngth: 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 410 Thermal life Temperature rat

35、ing: 150 C at 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 Table 3. 412 Humidity resistance Visual examination in accordance with EN 3745-201 Maximum residua

36、l attenuation: 0,10 dB at 1 310 nm. Maximum variation of weight: m = 5 % Number of samples: 1 Sample length: 20 m Number of cycles: 15 501 Fibre proof test 1 % 503 Scrape abrasion Maximum residual attenuation: 0,10 dB at 1 310 nm. Visual examination in accordance with EN 3745-201 Jacket shall not sp

37、lit, crack or expose the strength member Number of samples: 3 Sample length: 3 m Ambient test: Load: 7 N Number of cycles: 500 High temperature test (150 C): Load: 2,2 N Number of cycles: 500 prEN 4641-201:2017 (E) 8 prEN4641-201:2017(E) Table 4 Fibre optic cable performance requirements (3 of 5) Te

38、st method EN 3745- Designation of test Test conditions and results 504 Micro-bending Maximum variation in attenuation: 0,10 dB at 1 310 nm Maximum residual attenuation 15 minutes after removing the load: 0,10 dB at 1 310 nm. Visual examination in accordance with EN 3745-201. Number of samples : 3 Lo

39、ad: 50 N Rate load is applied: 50 N/min Mandrel size = 5 mm 505 Method B Tensile strength Maximum variation in attenuation: 0,30 dB at 1 310 nm Pulling speed: (50 10) mm/min Number of samples: 3 Sample length: 5 m 506 Impact Maximum variation in attenuation: 0, 10 dB at 1 310 nm. Jacket shall not cr

40、ack or split Test temperature: 20 C Load to be applied: 5 N Radius intermediate piece: 15 mm Drop height: 150 mm Number of impacts: 2 Number of samples: 3 Sample length: 700 mm 507 Cut-through Visual examination in accordance with EN 3745-201 Monitor attenuation to determine fibre breakage of the sa

41、mple 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 508 Torsion No cracking or splitting of cable jacket. Maximum variation of attenuation: 0,30 dB at 1 310 nm. For 5 cycles: 0,30 dB For 1 000 cycles: 0,30 dB Numb

42、er of samples: 3 Sample length: (3,0 0,5)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 diameter maximum permissible variation of attenuation: 0,10 dB at 1 3

43、10 nm. Minimum loop diameter: 6,5 mm. Number of samples: 3 Sample length: 10 times bend radius 510 Method A Bend Maximum variation of attenuation: 0,10 dB at 1 310 nm Residual attenuation after removing the specimen from the test equipment: 0,10 dB at 1 310 nm Visual examination in accordance with E

44、N 3745-201 Load to ensure contact between cable and mandrel: 20 N Mandrel diameter: 18 mm Number of turns: 5 Number of samples: 1 Sample length: 3,0 m prEN 4641-201:2017 (E) 9 prEN4641-201:2017(E) Table 4 Fibre optic cable performance requirements (4 of 5) Test method EN 3745- Designation of test Te

45、st conditions and results 510 Method B Bend Maximum transmittance change: 0,10 dB at 1 310 nm Mandrel diameters: 18 mm Mandrel spacing: (600 5) mm Number of samples: 1 Sample length: 10 m 511 Cable to cable abrasion Cat A: 1 optical, 1 copper (16 AWG DR) Minimum number of cycles: 2 800 000 Load: 10

46、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 512 Flexure endurance Visual examination in accordance with EN 3745-201 Maximum permissible variation in attenuation: 0, 30 dB at 1 310

47、nm. Jacket shall not split or crack Load: 5 N Mandrel diameter: 18 mm Number of cycles: 100 000 Number of samples: 3 Sample length: 5 m 513 Crush resistance Maximum variation of attenuation: 0,10 dB at 1 310 nm No cracking or splitting of cable jacket Load: 445 N Area of load: 100 mm2 Number of samp

48、les: 3 Sample length: 5 m 514 Bend twist Not applicable due to installation application. 515 Buffer insertion force Maximum insertion force: 2,2 N for 0,45 mm movement on both ends Number of samples: 2 Sample length: 4 m 516 Severe bend Not applicable unless specified by customer for installation Typical requirements: No fibre breakage Mass: 1,6 kg Mandrel bend radius (127 25) um Cable rotation: 1 cycle 517 Cable tie clamping Typical requir