1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4641-106 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 106: Semi-loose structure 62,5/125 m GI fibre nominal 0,9 mm outside diameter Product standard Luft- und Raumfahrt Lichtwellenleiterkabel, Mantelauendurchmesser 125 m Teil 106: Kompaktader, 62,5/125 m GI-Faser, Kabelauendurchmess
3、er 0,9 mm Produktnorm Srie arospatiale Cbles, optiques, diamtre extrieur de la gaine optique 125 m Partie 106 : Cble structure semi-libre, fibre gradient dindice 62,5/125 m, diamtre extrieur 0,9 mm Norme de produit This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD
4、-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. Subsequent to the publication of this Prestandard
5、, 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 will be submitted as a draft European Standa
6、rd (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 withdrawing any national standards conflicti
7、ng 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, including any patent infringement arisin
8、g 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 any suggestions that may arise. All rights r
9、eserved. 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-mail: salesasd-stan.org Web address: http:/
10、www.asd-stan.org/ Edition 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 4641-106:2017 (E) 2 prEN4641-106:2017(E) Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Te
11、rms and definitions 3 4 Required characteristics . 3 5 Cable construction 4 6 Materials . 4 7 Test methods and performances . 5 8 Tooling 11 9 Quality assurance . 11 10 Designation and marking 11 11 Delivery conditions 12 12 Storage 12 13 Technical specification . 12 Foreword This standard was revie
12、wed 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 4641-106:2017 (E) 3 prEN4641-106:2017(E) 1 Sco
13、pe This product standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance for a fibre optic cable with a 62,5/125 m, MM fibre core, and 900 m outside cable diameter and of semi-loose buffer construction for “inside avionics box” equipment fibre ha
14、rnessing. 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 references, the latest edition of the referenced document (including
15、 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 Part 601: Smoke density EN 3745, (all parts), Aerospace series Fibres and cables, optic
16、al, 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 optical components and sub-assemblies EN 4641-001, Aerospace series Cables, optical, 125 m d
17、iameter cladding Part 001: Technical specification TR 4647, Aerospace series Termination procedure for EN 4639 optical contact 1) 3 Terms and definitions For the purposes of this document, the following terms and definitions given in EN 3745-100 apply. 4 Required characteristics The characteristics
18、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-Standardization (ASD-STAN)
19、, (www.asd-stan.org). prEN 4641-106:2017 (E) 4 prEN4641-106:2017(E) 5 Cable construction See Figure 1 and Table 1. Key 1 Core 2 Cladding 3 Primary buffer 4 Secondary buffer 5 Cable jacket Figure 1 Table 1 Property Value Core (62,5 3,0) m Cladding (125 2,0) m Primary coating (250 10) m Finished cable
20、 diameter (915 60) m Cable mass 1,3 g/m Operating temperature 65 C to 150 C Numerical aperture 0,275 0,015 Minimum bend radius (20 C) Installation: 4 mm Long term: 6 mm Storage: 18 mm (20 x cable outside diameter) Fibre tensile strength 200 N 6 Materials See Table 2. Table 2 Element Material Fibre C
21、ore Silica Cladding Primary buffer Polyacrylate Secondary buffer PTFE Jacket(s) Polyimide prEN 4641-106:2017 (E) 5 prEN4641-106:2017(E) 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
22、 EN 3745- Designation of test Test conditions and results 201 Fibre visual examination Pass 202 Fibre core dimensions Method D: Core diameter: (62,5 3) m 501 Optical fibre proof test 1 % 202 Fibre cladding dimension Cladding diameter: (125 2) m Method A or B Sample should be in accordance with test
23、methods Number of sample: 1 203 Primary coating outside diameter Not applicable 202 Fibre dimension core non circularity Core non circularity: 5 % (3 m) Number of sample: 1 202 Fibre dimension cladding non circularity 1,0 % Number of sample: 1 202 Fibre dimension concentricity error 1,5 m Number of
24、sample: 1 301 Method D Fibre attenuation At 20 C 3,2 dB/km at 850 nm 0,7 dB/km at 1 300 nm Minimum sample length: 100 m 302 Numerical aperture Numerical aperture: 0,275 0,015 at = (850 20) nm Sample length: 2 m 303 Bandwidth Bandwidth 200 MHz/km at 850 nm Bandwidth 500 MHz/km at 1 300 nm Number of s
25、amples: 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 prEN 4641-106:2017 (E) 6 prEN4641-106:2017(E) 7.1.2 Fibre optic cable See Table 4. Table 4 Fibre optic cable performance requirements (1 of 4) Test method EN 37
26、45- Designation of test Test conditions and results 201 Visual inspection The cable outer layer shall be continuous and free of visible defects such as lumps, abrasions, cracks, splits or blisters Number of sample: 1 Sample length: 3 m. 203 Buffer diameter (250 10) m 203 Outer jacket outside diamete
27、r (915 60) m 205 Method A Longitudinal stability Change in longitudinal dimensions between A and B: 7 mm. Sample length: (2,0 0,03) m Number of samples: 3 Number of temperature cycles (EN 3745-402): 25. 301 Method D Cable attenuation Maximum attenuation 3,2 dB/km at 850 nm, 0,7 dB/km at 1 300 nm at
28、20 C. Minimum sample length: 100 m 305 Cable immunity to ambient light Not applicable due to installation application 306/402 Attenuation during temperature cycling Visual examination in accordance with EN 3745-201 0, 25 dB at 850 nm and 1 300 nm. Test method EN 3745-402 10 cycles High temperature:
29、150 C Low temperature: 65 C Duration at extreme temperatures: 30 min Rate of change: 5 C per min Number of samples: 3 Sample length: 5 m 401 Cable accelerated aging Visual examination in accordance with EN 3745-201 0, 25 dB at 850 nm and 1 300 nm. Variation in attenuation after 24 h: 0,25 dB Residua
30、l variation in attenuation: 0,25 dB Mandrel diameter: 18 mm Test temperature: 150 C Number of temperature cycles: 1 Number of samples: 1 Sample length: (3,00 0,05) m 404 Thermal shock Visual examination in accordance with EN 3745-201 Permissible variation in attenuation during test sequence and afte
31、r 24h: 0,25 dB at 850 nm and 1 300 nm. High temperature: 150 C Low temperature: 65 C Duration at extreme temperatures: 30 min Number of samples: 3 Sample length: 5 m Number of temperature cycles: 10 prEN 4641-106:2017 (E) 7 prEN4641-106:2017(E) Table 4 Fibre optic cable performance requirements (2 o
32、f 4) Test method EN 3745- Designation of test Test conditions and results 406 Cold bend Not applicable due to installation application. 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
33、 burn length: 75 mm Self extinguish after 5 s Number of samples: 5 Sample length: (1 0,05) m 410 Thermal life Temperature rating: 150 C at 100 000 h 411 Method 2 Resistance to fluids See Table 3. 412 Humidity resistance Visual examination in accordance with EN 3745-201 Maximum residual attenuation:
34、0,10 dB at 1 300 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 Visual examination in accordance with EN 3745-201 Maximum variation in attenuation: 0,25 dB at 1 300 nm. Number of samples: 3 Sample le
35、ngth: 3 m Ambient Test: Load: 2,2 N Number of cycles : 100 High temperature test (150 C): Load: 2,2 N Number of cycles: 100 504 Micro-bending Maximum variation in attenuation: 0,25 dB at 850 nm and 1 300 nm. Maximum residual attenuation 15 min after removing the load: 0,10 dB. Visual examination in
36、accordance with EN 3745-201. Number of samples : 3 Load: 10 N Rate load is applied: 10 N/min Mandrel size = 3 mm Number of samples: 3 Sample length: 4 m 505 Method B Tensile strength Maximum variation in attenuation: 0,25 dB at 850 nm and 1 300 nm. Tensile Strength: 5 N Pulling speed: (50 10) mm/min
37、. Number of samples: 3 Sample length: 5 m 506 Impact Maximum variation in attenuation: 0, 25 dB at 1 300 nm. Jacket shall not crack or split Test temperature: 20 C Load to be applied: 2 N Radius intermediate piece: 15 mm Drop height: 150 mm Number of impacts: 2 Number of samples: 3 Sample length: 70
38、0 mm prEN 4641-106:2017 (E) 8 prEN4641-106:2017(E) Table 4 Fibre optic cable performance requirements (3 of 4) Test method EN 3745- Designation of test Test conditions and results 507 Cut-through Not applicable due to installation application. 508 Torsion No cracking or splitting of cable jacket. Ma
39、ximum variation of attenuation: 0,10 dB at 850 nm and 1 300 nm. For 5 cycles: 0,25 dB Number of samples: 3 Sample length: 3,0 m Load to be applied: 5 N Number of cycles: 5 Distance between the rotating grip and the fixed grip: (0,25 0,01) m 509 Kink No kink shall occur at a diameter greater than min
40、imum loop diameter maximum permissible variation of attenuation: 0,25 dB at 850 nm and 1 300 nm. Minimum loop diameter: 6,35 0,0/1,0 mm. Number of samples: 3 Sample length: 10 times bend radius Duration: 24 h 510 Method A Bending Maximum variation of attenuation: 0,25 dB at 850 nm and 1 300 nm Resid
41、ual attenuation after removing the specimen from the test equipment: 0,10 dB Visual examination in accordance with EN 3745-201 Load to ensure contact between cable and mandrel: 2,2 N Mandrel diameter: 18 mm Number of turns: 5 Number of samples: 1 Sample length: 3,0 m 510 Method B Bending Maximum tra
42、nsmittance change: 0,25 dB at 850 nm and 1 300 nm. Mandrel diameters: 9 mm Mandrel spacing: 600 mm Number of samples: 1 Sample length: 5 m 511 Cable to cable abrasion Cat A: 1 optical, 1 copper (18 AWG DR) Minimum number of cycles: 10 000 Load: 2,2 N Cat B: 2 optical cables Minimum number of cycles:
43、 10 000 Load: 2,2 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, 25 dB at 850 nm and 1 300 nm. Jacket shall not split or crack Load
44、: 2,2 N Mandrel diameter: 12 mm Number of cycles: 10 000 Number of samples: 3 Sample length: 5 m prEN 4641-106:2017 (E) 9 prEN4641-106:2017(E) Table 4 Fibre optic cable performance requirements (4 of 4) Test method EN 3745- Designation of test Test conditions and results 513 Crush resistance Maximum
45、 variation of attenuation: 0,10 dB at 850 nm and 1 300 nm No cracking or splitting of cable jacket Load: 445 N Area of load: 100 mm2 Number of samples: 3 Sample length: 3 m Duration of force application: 15 min 514 Bend twist Not applicable due to installation application. 515 Buffer insertion force
46、 Not applicable due to cable construction. 516 Severe bend Not applicable due to installation application. 517 Cable tie clamping Maximum transmittance change: 0, 05 dB at 850 nm and 1 300 nm. Mandrel diameter: (13 1) mm Number of cable ties applied: 6 Cable tie tension setting: #1 Cable tie spacing
47、: 90 mm Number of samples: 3 Sample length: 4 m 601 Smoke density Test method : EN 3475-601 Specific optical smoke density (average) Ds 20 within 16 minutes test duration under both the flaming and non-flaming conditions. Value must be measured at the end of the test. 602 Toxicity Applicable 603 Nuc
48、lear radiation Not applicable due to application. 701 Cable stripping Buffer: 2N per 30 mm Blade design (See EN 2812) Pulling speed 25 mm/min to 50 mm/min 703 Durability of manufacturers marking Not applicable as no marking is applied. 705 Contrast measurement Not applicable due to application. 706 EN 3838 except 6.8 Durability of user identification markings Not applicable due to application. prEN 4641-106:2017 (E) 10 prEN4641-106:2017(E) 7.2 Fluids test See Table 5. Table 5 List of test fluids (1 of 2) Test fluid No. Fl
