ASD-STAN PREN 4641-102-2008 Aerospace series Cables optical 125 diameter cladding Part 102 Semi-loose 62 5 125 GI fibre nominal 1 8 mm outside diameter Product standard (Edition P .pdf

1、ASD STANDARD NORME ASD ASD NORM prEN 4641-102 Edition P 1 January 2008 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Avenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: 49.060 Descriptors: ENGLISH

2、VERSION 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 Srie arospatiale Cble, optique, diamtre extrieur de la gaine optique 125 m Partie 102 : Cble structure semi libre, fibre gradient dindice 62,5/12

3、5 m, diamtre extrieur 1,8 mm Norme de produit Luft- und Raumfahrt Lichtwellenleiterkabel, Claddingdurchmesser 125 m Teil 102: Halbfester Leiteraufbau GI 62,5/125 m, Faser Kabelauendurchmesser 1,8 mm Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STA

4、N (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, th

5、e 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, it will be submitted as a draft European Standard (prEN) to CEN (E

6、uropean 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. Edi

7、tion approved for publication 31 January 2008Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2008 by ASD-STAN prEN 4641-102:20082 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Terms and definitions .4 4 Required character

8、istics.4 5 Cable construction 4 6 Materials .5 7 Test methods and performances .5 8 Tooling . 11 9 Quality assurance. 11 10 Designation, marking and colours 12 11 Delivery conditions. 12 12 Storage. 12 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Do

9、main. 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 4641-102:2008 3 1 Scope This product standard specifies the general characteristics, conditions for qualificatio

10、n, 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 this document. For dated referen

11、ces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 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/

12、Anti-icing fluids ISO types II, III and IV. EN 2424, Aerospace series Marking of aerospace products. EN 2812, Aerospace series Stripping of electrical cables. 1)EN 3475-601, Aerospace series Cables, electrical, aircraft use Test methods Part 601: Smoke density. 1)EN 3745-100, Aerospace series Fibres

13、 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. 1)EN 3909, Aerospace series Test fluids for electric components and sub-assemblies. 1)EN 4641-001, Aerospace series Cables, opti

14、cal 125 m outside diameter cladding Part 001: Technical specification. 2)EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts. TR 4647, Aerospace series Fibres and cables, optical aircraft use Technical Report Termination procedure for EN 4639 con

15、tact. 2)STANAG 3748, Hydraulic fluid, petroleum (H-515, H-520 and C-635) and polyalphaolefin (H-537, H-538 and H-544). 3)MIL-PRF-87252C, Coolant fluid, hydrolytically stable, dielectric. 4)AMS 1428, Fluid, aircraft deicing/Anti-icing, non-Newtonian (pseudoplastic), SAE types II, III, and IV. 5)NSA 3

16、07110, 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 Standardization (MA

17、S); 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. prEN 4641-102:20084 3 Terms and definitions For the purposes of t

18、his 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 Figure 1 and Table 1. Key 1 Co

19、re 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 Attenuation at 850 nm (20 C) 20

20、0 N 1 23456 prEN 4641-102:2008 5 6 Materials See Table 2. Table 2 Element Material Core Fibre Cladding Silica Primary coating Polyacrylate Primary buffer PTFE Secondary buffer Polyimide Barrier layer PTFE (Non-sealed) Mechanical strength reinforcement Aramid/Fibre glass woven braid Outer jacket Extr

21、uded 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 Test Test method EN 3745- Test conditions and results Fibre visual examination 201 Pass Fibre core dimensions 202 Method D: Core diameter: (

22、62,5 3) m Optical fibre proof test 501 1 % Fibre 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 Sample length: 2 m Bandwidth 303 Bandwidth 200 MHz/km at 8

23、50 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 prEN 4641-102:20086 7.1.2 Fibre optic cable See Table 4. Table 4 Fibre optic cable test methods Title Test met

24、hod 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 defects such as lumps, abrasions, cracks, splits or blisters. Number of samples: 1 Sample length:

25、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 205 Change in longitudinal dimensions between A and B: 5 mm Number of samples: 3 Sample Leng

26、th: (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 immunity to ambient light 305 Level of optical power 50 dBm Sample length exposed to light sou

27、rce: 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 402 10 Cycles High temperature: 150 C Low temperature: 65 C Duration at extreme temperatures: 30 minutes Rate of ch

28、ange: 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 flaming particles shall fall from the sample during the test and the tissue paper shall not be ignit

29、ed 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 hours Resistance to fluids 411 Method 2 Visual examination in accordance with EN 3745-201 Maximum var

30、iation 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 attenuation: 700 mm Cut-through 507 Visual examination in accordance with EN 3745-201 Monitor attenuation

31、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 or splitting of cable jacket Maximum variation of attenuation: For one cycle: 10 times bend radius B

32、end 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 ensure contact between cable and mandrel: 20 N Mandrel diameter: 25 mm Number of turns: 10 Number of sa

33、mples: 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 abrasion 511 Cat A: 1 optical, 1 copper (16 AWG DR) Minimum number of cycles: 2 800 000 Load: 10 N Cat

34、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 accordance with EN 3745-201 Maximum permissible variation in attenuation: 0,25 dB at 850 nm and 1

35、 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 cable jacket Load: 445 N Area of load: 100 mm2Number of samples: 3 Sample length: 5 m Bend twist 51

36、4 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 prEN 4641-102:200810 Table 4 Fibre optic cable test methods (concluded) Title Test method EN 3745- Test conditions and results Severe bend 51

37、6 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 cycle Cable tie clamping 517 Not applicable unless specified by customer for installation Typical requirements: Maximum transmittance ch

38、ange: 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 Test method : EN 3475-601 Specific optical smoke density (average) Ds 50 within 4 minutes test duration under both the flaming and non-fl

39、aming 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 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

40、) 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 samples: 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

41、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 usin

42、g a 50/125 um fiber launch cable. prEN 4641-102:200811 7.2 Fluids test See Table 5. Table 5 List of fluids 6)Fluids to be used for the test Fluids family Type Base Alternative Temperature C 2 Reference Fuels Kerosene ISO 1817 liquid F 70 F44 F34 F35 F40 Phosphate base ISO 1817 liquid 103 70 Syntheti

43、c fluid H 580NSA 307110 type IV Silicone base NATO-S-1714 80 NATO-S-1714 Hydraulic fluid Mineral base STANAG 3748 NATO-H-520 80 NATO-H-515 Mineral base NATO-O-1176 125 NATO-O-1176 Mineral base NATO-O-142 70 NATO-O-142 Oils Synthetic oil Polyol ester NATO-O-156 NATO-O-0148 NATO-O-160 Solvent Isopropa

44、nol or Ethanol 50 NATO-S-737 NATO-S-738 Cleaning fluids Solvent Propanol 25 % + White spirit 75 % v/v 25 NATO-S-752 NATO-S-753 De-icing Aircraft De-icer Ethylene glycol 80 % + Water 20 % v/v AMS 1428 Mono-propylene glycol ISO 11075 ISO 11078 25 Glycol base NATO-S-742 NATO-S-745 Cooling Coolant 25 R

45、Radar coolant Substituted by ISO 1817 (liquid 103) 25 MIL-PRF-87252C 8 Tooling See TR 4647 for termination processes. 9 Quality assurance See EN 9133. 6) Please refer to EN 3909 “Table 1 List of fluids“ for a more complete description of fluid references. prEN 4641-102:200812 10 Designation, marking

46、 and colours 10.1 Designation EXAMPLE Description block CABLE FIBRE OPTIC Identity block EN4641-102 Number of the basic standard Product standard 10.2 Marking The marking shall comprise of the cable reference, the manufacturer code and the last two digits of the year of manufacture shall conform to

47、EN 2424. The marking may be done wholly or partially in code by agreement with the user. The cable shall use marker tape under the outer jacket or the outer jacket shall be marked with a UV laser. Hot stamping is forbidden. 10.3 Colours The colour of the outer jacket will be light purple or as speci

48、fied by customer. 11 Delivery conditions 11.1 Packaging See EN 4641-001. 11.2 Labelling See EN 4641-001. 11.3 Delivery lengths The minimum delivery length of a fibre or cable is by agreement between customer and supplier. 12 Storage Fibre optic cables shall be stored as described hereunder: Humidity: 90 % Temperatures: 65 C to 85 C CAUTION Let cable warm up prior to handling if fibre optic cable has been stored for prolonged periods of time below 0 C. Tensile strength on cable 30 N.