1、ASD STANDARD NORME ASD ASD NORM prEN 4641-105 Edition P 1 February 2010 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 2 775 8131 - www.asd-stan.orgICS: 49.060 Descriptors: ENGLISH VER
2、SION Aerospace series Cables, optical 125 m diameter cladding Part 105: Semi-loose, ruggedized quadraxial construction 62,5/125 m GI fibre nominal, 5,72 mm outside diameter Product standard Srie arospatiale Cble, optique, diamtre extrieur de la gaine optique 125 m Partie 105 : Cble structure semi li
3、bre, construction quarte renforce, fibre gradient dindice 62,5/125 m, diamtre extrieur 5,72 mm Norme de produit Luft- und Raumfahrt Lichtwellenleiterkabel, Manteldurchmesser 125 m Teil 105: Kompaktader, widerstandsfhig quadraxiale Konstruktion 62, 5/125 m GI-Faser, Kabelauendurchmesser 5,72 mm Produ
4、ktnorm This “Aerospace Series“ Prestandard has been 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 c
5、oncerned Domain following member comments. Subsequent 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
6、formal agreement of ASD-STAN, it will 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 stat
7、us of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 28 February 2010 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2010 by ASD-STAN prEN 4641-105:2010 (E) 2 Con
8、tents Page Foreword2 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 . 10 9 Quality assurance. 10 10 Designation, marking and colours 10 11 Delivery conditions. 10 12 Storage
9、. 11 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 4641-105:
10、2010 (E) 3 1 Scope This product standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance for a fibre optic cable with four 62,5/125 m Graded Index fibre cores, 5,72 mm nominal outside diameter and of semi loose construction. The basic constructio
11、n is a pair of the cables defined in with added sheaths for ruggedized usages. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the ref
12、erenced document (including any amendments) applies. EN 2424, Aerospace series Marking of aerospace products EN 3745-100 (all parts), 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
13、aircraft electrical cables 1)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 1)EN 91
14、33, Aerospace series Quality management systems Qualification procedure for aerospace standard parts TR 4647, Aerospace series Termination procedure for EN 4639 optical contact 2)3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3745-100 apply. 4 Requir
15、ed 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 Prestandard at the date of publication of this standard. 2) Published as ASD-STAN Technical Report at the
16、date of publication of this standard. prEN 4641-105:2010 (E) 4 5 Cable construction See Figure 1 and Table 1. Key 1 Filler 5 places 2 Overall jacket 3 Natural 4 Single fibre optic cables 5 PTFE barrier tape Figure 1 2 1 5 34 prEN 4641-105:2010 (E) 5 Table 1 Property Value EN 4641-102 Fibre optic cab
17、le (1,80 1,2) mm Finished cable diameter 5,72 mm Cable mass 40 g/m Operating temperature 65 C to 150 C Attenuation at 850 nm (20 C) 4 dB/km Attenuation at 1 300 nm (20 C) 2 dB/km Numerical aperture 0,275 0,015 Minimum bend radius (20 C) Installation: 60 mm (10 outside diameter) Long term: 60 mm (10
18、outside diameter) Storage: 130 mm (20 cable outside diameter) 6 Materials See Table 2. Table 2 Element Material 4 - Fibre cable components EN 4641-102 Fibre optic cable 5 fillers PTFE Barrier tape PTFE Outer jacket Extruded fluoropolymer 7 Test methods and performances 7.1 Tests in accordance with E
19、N 3745-100 7.1.1 Optical fibre tests In accordance with EN 4641-102. 7.1.2 Fibre optic component cable tests In accordance with EN 4641-102. 7.1.3 Ruggedized fibre optic cable Tests in accordance with Table 3. prEN 4641-105:2010 (E) 6 Table 3 Ruggedized fibre optic cable test methods Designation of
20、the 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 defects such as lumps, abrasions, cracks, splits or blisters. Sample length: 3 m
21、Outer jacket outside diameter 203 (5,72 0,25) mm Outer jacket wall thickness 203 Minimum wall 0,20 mm Cable longitudinal dimensional stability 205 The change in longitudinal dimensions between A and B shall not exceed the maximum value of 5 mm Number of samples: 3 Sample length: (3,5 0,03) m Test me
22、thod EN 3745-402 25 cycles 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 Cable immunity to ambient light coupling 305 Not applicable. This is an EN 4641-102 component test. Cable accelerated ageing 401 Not applicable if
23、 jacket materials are the same. This is an EN 4641-102 component test. Variation of attenuation during temperature cycling 306 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 High temperature: 150 C
24、 Low temperature: - 65 C Duration at extreme temperatures: 30 minutes Rate of change: 5 C per minute Number of samples: 3 Sample Length: 20 m Thermal shock 404 Visual examination in accordance with EN 3745-201. Maximum permissible variation in attenuation during test sequence and after 24 h: 0,25 dB
25、 at 850 nm and 1 300 nm. High temperature: 150 C Low temperature: 65 C Duration at extreme temperatures: 30 minutes Number of samples: 3 Sample Length: 20 m Number of temperature cycles: 10 continued prEN 4641-105:2010 (E) 7 Table 3 Ruggedized fibre optic cable test methods (continued) Designation o
26、f the test Test method EN 3745- Test conditions and results Cold bend 406 Maximum permissible variation in attenuation: 0,25 dB at 850 nm and 1 300 nm. Visual examination in accordance with EN 3745-201. 1 hour soak at: 65 C Mandrel size: (50 1) mm Mandrel wraps: 10 Number of samples: 1 Sample Length
27、: 10 m Flammability 407 No 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 seconds Number of samples: 3 Sample length: (1 0,05) m Thermal life 410 Not ap
28、plicable if jacket materials are the same. This is an EN 4641-102 component test. Resistance to fluids 411 Method 2 Not applicable if jacket materials are the same. This is an EN 4641-102 component test. Humidity resistance 412 Not applicable if jacket materials are the same. This is an EN 4641-102
29、component test. Scrape abrasion 503 Maximum variation in attenuation: 0,25 dB at 850 nm and 1 300 nm. Visual examination in accordance with EN 3745-201. Number of samples: 3 Sample length: 3 m Test at ambient temperature: Load: 7 N Number of cycles: 500 Test at high temperature: 150 C Load: 22 N Num
30、ber of cycles: 500 Tensile strength 505 Maximum variation in attenuation: 0,25 dB at 850 nm and 1 300 nm. Mandrel diameter: 50 mm Tensile Strength: 50 N Pulling speed: (50 10) mm/min Number of samples: 3 Sample length: 5 m Impact 506 Maximum variation in attenuation: 0,1 dB at 850 nm and 1 300 nm. T
31、est at ambient temperature: 20 C Load to be applied: 15 N Radius intermediate piece: 12 mm Drop height: 150 mm Number of impacts: 10 Number of samples: 3 Sample length: 700 mm continued prEN 4641-105:2010 (E) 8 Table 3 Ruggedized fibre optic cable test methods (continued) Test Test method EN 3745- T
32、est conditions and results 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. Test at ambient temperature (20 C): Load: 330 N Test at high temperature (150 C): 85 N Load: 85 N Duration of
33、load application: 1 min Number of samples: 3 Sample length: 3 m Torsion 508 Added to test criterion: No cracking or splitting of cable jacket Maximum variation of attenuation: For one cycle: 0,1 dB For 1 000 cycles: 0,1 dB Number of samples: 3 Sample length: 3 m Load to be applied: 150 N Number of c
34、ycles: 1,000 Distance between the rotating grip and the fixed grip: (0,25 0,01) m Bend 510 Method B Maximum variation of attenuation: 0,25 dB Residual attenuation after removing the specimen from the test equipment: 0,1 dB. Visual examination in accordance with EN 3745-201. Mandrel diameter: 50 mm N
35、umber of turns: 10 Number of samples: 1 Sample length: 10 m Cable to cable abrasion 511 Not applicable if jacket materials are the same. This is an EN 4641-102 component test. Flexure endurance 512 Examination of test specimen for damage in accordance with EN 3745-201 (visual examination). Maximum p
36、ermissible variation of attenuation: 0,25 dB Number of samples: 3 Length of the sample: 5 m Load to be applied: 11,5 N Diameter of mandrel: 28 mm Number of cycles: 100,000 Crush resistance 513 Maximum variation of attenuation: 0,5 dB No cracking or splitting of cable jacket Load: 445 N Area of load:
37、 100 mm2 Number of samples: 3 Sample length: 3 m continued prEN 4641-105:2010 (E) 9 Table 3 Ruggedized fibre optic cable test methods (concluded) Designation of the test Test method EN 3745- Test conditions and results Extreme cable bend 516 Examination of test specimen for damage in accordance with
38、 EN 3745-201 (visual examination). No fibre breakage. Maximum permissible variation of attenuation: 0,50 dB Load to be applied : 127 N Maximum edge radius: 127 m Number of cycles: One bend in each direction Number of samples : 3 Length of the sample: 3 m Cable Clamping 517 Typical requirements: Maxi
39、mum transmittance change: 0,05 dB Mandrel diameter: (13 1) mm Cable tie spacing: 90 mm Number of cable ties applied: 6 Cable tie tension setting: #1 Number of samples: 3 Sample length: 4 m Smoke density 601 Specific optical smoke density (average) Ds 200 within 4 minutes test duration under both the
40、 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 ppm Nuclear radiation 603 Not applicable. Cable stripping 701 Not applicable. Durability of manufacturers identi
41、ty markings 703 Not applicable Marker tape under jacket. Contrast measurement 705 Not applicable Marker tape under jacket. Durability of user identification markings 706 EN 3838 Except sub-clause 6.8 Not applicable. General test conditions: The tests shall be performed with the following launch cond
42、ition: 70/70 % prEN 4641-105:2010 (E) 10 8 Tooling See TR 4647 termination processes. 9 Quality assurance See EN 9133. 10 Designation, marking and colours 10.1 Designation EXAMPLE Description block CABLE FIBRE OPTIC Identity block EN4641-105 Number of the basic standard Product standard 10.2 Marking
43、 The marking shall comprise of the cable reference, the manufacturer code and the last two digits of the year of manufacture shall conform to 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 j
44、acket 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 specified 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
45、a fibre or cable is by agreement between customer and supplier. prEN 4641-105:2010 (E) 11 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.
