1、ASD STANDARD NORME ASD ASD NORM prEN 4641-100 Edition P 1 March 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 VERSIO
2、N Aerospace series Cables, optical 125 m diameter cladding Part 100: Tight structure 62,5/125 m core GI fibre 1,8 mm outside diameter Product standard Srie arospatiale Cble, optique, diamtre extrieur de la gaine optique 125 m Partie 100 : Cble structure serre fibre, gradient dindice cur 62,5/125 m,
3、diamtre extrieur 1,8 mm Norme de produit Luft- und Raumfahrt Lichtwellenleiterkabel, Manteldurchmesser 125 m Teil 100: Festaderaufbau GI 62,5/125 m Faser Kabeldurchmesser 1,8 mm Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and
4、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 s
5、hall 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 (European Committee for
6、 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. Edition approved for pub
7、lication 31 March 2010 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2010 by ASD-STAN prEN 4641-100:2010 (E) 2 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Terms and definitions .4 4 Required characteristics.4 5 Cable
8、construction 4 6 Material and description .4 7 Test methods and performances .5 8 Quality assurance. 12 9 Designation, marking and colours 12 10 Delivery conditions. 13 11 Storage. 13 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquir
9、ies 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 4641-100:2010 (E) 3 1 Scope This product standard specifies the general characteristics, conditions for qualification, acceptance
10、and quality assurance for fibre optic cable: 4641-100. 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 referenced document (includ
11、ing any amendments) applies. EN 2424, Aerospace series Marking of aerospace products EN 2812, Aerospace series Stripping of electrical cables 1)EN 3475-511, Aerospace series Cables, electrical, aircraft use Test methods Part 511: Cable-to-cable abrasion EN 3745-100 (all parts), Aerospace series Fibr
12、es 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 and test methods for electric components and sub-assemblies EN 9133, Aerospace series Qu
13、ality management systems Qualification procedure for aerospace standard parts TR 6058, Aerospace series Cable code identification list 2)ISO 1817, Rubber, vulcanized Determination of the effect of liquids 3)MIL-PRF-87252C, Coolant fluid, hydrolytically stable, dielectric 4)TIA/EIA-455-30-B, FOTP-30
14、Frequency Domain Measurement of Multimode 5)TIA/EIA-455-175-B, FOTP175 Chromatic Dispersion Measurement of Single-mode Optical Fibers by the Differential Phase Shift Method 6)ANSI/EIA 4920000-A, Generic Specification for Optical Waveguide Fibers 6)1) Published as ASD-STAN Prestandard at the date of
15、publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN), (www.asd-stan.org). 2) Published as ASD-STAN Technical Report at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-
16、STAN), (www.asd-stan.org). 3) Published by: International International Standardisation Organisation http:/www.iso.ch/. 4) Published by: Department of Defense (DoD), http:/www.defenselink.mil/. 5) Published by: National (US) American National Standard Institute http:/www.ansi.org/. prEN 4641-100:201
17、0 (E) 4 3 Terms and definitions For the purposes of this 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
18、Cable construction See Figure 1 and Table 1. Key 1 Optical cladding 2 Primary jacket 3 Outer jacket 4 Mechanical strength braid 5 Primary coating 6 Core Figure 1 Table 1 Property Value Mass 4 g/m Operating temperature 55 C to 125 C Minimum bend radius (20 C) Installation: 20 mm (10 outside diameter)
19、 Long term: 20 mm (10 outside diameter) Storage: 40 mm (20 cable outside diameter) Tensile strength 200 N 6 Materials See Table 2. 145 62 3prEN 4641-100:2010 (E) 5 Table 2 Element Material Core Fibre Cladding Silica Primary coating Silicone Primary jacket Halogen free high temperature copolymer Mech
20、anical strength reinforcement Polymer aromatic braid Outer jacket High temperature copolymer 7 Test methods and performances in accordance with EN 3745-100 7.1 Optical fibre tests See Table 3. Table 3 Optical fibre test methods Designation of the test Test method EN 3745- Test conditions and results
21、 Fibre visual examination 201 The coating shall be continuous and free of visible defects such as lumps, abrasions, cracks, splits or blisters. Fibre core dimensions 202 Core diameter: (62,5 3) m Fibre dimension cladding diameter 202 Cladding diameter: (125 2) m Method A or B Sample should be in acc
22、ordance with test methods Number of sample: 1 Fibre dimension core non circularity 202 Core non circularity: 5 % (3 m) Number of sample: 1 Fibre dimension cladding non circularity 202 Cladding non circularity: 2 % (2,5 m) Number of sample: 1 Fibre dimension concentricity error 202 Concentricity erro
23、r: 3 m Number of sample: 1 Fibre attenuation 301 Method A 4 dB/km at 850 nm (20 C) 2 dB/km at 1300 nm (20 C) Numerical aperture 302 0,275 0,015 Bandwidth 303 Bandwidth 160 Mhz.km at 850 nm Bandwidth 500 Mhz.km at 1 300 nm Number of sample: 1 Minimal length of the sample: 1 km Central wavelengths: 85
24、0 nm /1 300 nm 10 nm Spectral width (- 3 dB): 10 nm for 850 nm and 1 300 nm Optical fibre proof test 501 1 % prEN 4641-100:2010 (E) 6 7.2 Fibre optic cable See Table 4. Table 4 Fibre optic cable test methods Designation of the test Test method EN 3745- Test conditions and results Visual Inspection 2
25、01 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: (100 0,05) m Primary coating outside diameter 203 (400 25) m Buffer diameter 203 (9
26、00 25) m Outer jacket outside diameter 203 (1,8 0,1) mm Outer jacket wall thickness 203 (0,35 0,07) mm Cable longitudinal dimensional stability 205 The change in longitudinal dimensions between core/cladding and primary jacket and core/cladding and outer jacket shall not exceed the maximum value of
27、200 m Number of samples: 4 in total, 2 for each length Length of the samples: 2 m, (20 0,01) m Cable attenuation 301 Method C Visual examination in accordance with EN 3745-201 Maximum attenuation at 55 C and 125 C 0,7 dB at 850 nm and 1 300 nm Number of sample: 1 Length of the sample: (20 0,01) m Ce
28、ntral wavelengths: 850 nm and 1 300 nm Rate of change to reach test temperature: 10 C per minute 1 hour stabilisation at 55 C/125 C before performing test Cable optical discontinuity 301 Method A Signal discontinuity 0,2 dB/point Number of sample: 1 Attenuation 301 Method A Maximum attenuation at 20
29、 C 4 dB/km at 850 nm, 2 dB/km at 1 300 nm Central wavelengths: 850 nm and 1 300 nm Number of sample: 1 Length of the sample: 250 m minimum continued prEN 4641-100:2010 (E) 7 Table 4 Fibre optic cable test methods (continued) Designation of the test Test method EN 3745- Test conditions and results Va
30、riation of attenuation during temperature cycling 306 Visual examination in accordance with EN 3745-201 Maximum permitted variation of attenuation: 0,7 dB at 850 nm and 1 300 nm Number of samples: 3 Length of the sample: (20 0,01) m Temperature cycling (See EN 3745-402) Number of cycles: 5 Cable acc
31、elerated ageing 401 Visual examination in accordance with EN 3745-201 Maximum variation in attenuation: 0,5 dB Maximum variation in attenuation after 24 h: 0,3 dB Residual maximum variation in attenuation: 0,2 dB Number of samples: 3 Length of the sample: (100 0,05) m Diameter of the mandrel: 250 mm
32、 Number of temperature cycles: 1 Test is carried out at the temperature of 125 C Temperature cycling 402 High temperature: 125 C Low temperature: 55 C Duration at extreme temperatures: 30 minutes Number of cycles: 5 Rate of change: 5 C per minute Thermal shock 404 Visual examination in accordance wi
33、th EN 3745-201 Maximum permissible variation in attenuation during test sequence and after 24 h 0,7 dB The maximum displacement of the fibre value shall be 200 m relative to the outer jacket Number of samples: 3 Length of the sample: (20 0,01) m Number of temperature cycles: 4 Test is carried out at
34、 55 C and 125 C Cold bend test 406 Maximum permissible variation in attenuation after 24 h 0,2 dB Number of samples: 3 Length of the samples: (2 0,01) m Diameter of the mandrel: 40 mm Turns number: 10 Number of temperature cycles: 2 Test is carried out at the temperature of 55 C continued prEN 4641-
35、100:2010 (E) 8 Table 4 Fibre optic cable test methods (continued) Designation of the test Test method EN 3745- Test conditions and results Flammability 407 Flame extinction before 7 seconds No flaming particles shall fall from the sample during the test and the tissue paper shall not be ignited Peri
36、od of flame application shall be 30 seconds Thermal life 410 Maximum permissible variation in attenuation: 2 dB Number of samples: 3 Length of the specimen: (100 0,05) m Lifetime shall be 100 000 hours. Resistance to fluids 411 Method 2 Visual examination in accordance with EN 3745-201 Maximum varia
37、tion of weight: m 5 % No cracks Low colour modification Readable marking. See 7.3 for fluids table. Humidity resistance 412 Visual examination in accordance with EN 3745-201 Maximum residual attenuation: 0,2 dB Maximum variation of weight: m 5 % Number of sample: 1 Length of the specimen: (20 0,1) m
38、 Number of cycles: 15 Fibre proof test 501 1 % Scrape abrasion 503 Maximum variation of attenuation: 1dB Visual examination in accordance with EN 3745-201 Number of samples: 2 Load to be applied: 10 N Length of the sample: (0,75 0,01) m Number of cycles: 100 Micro bending test 504 Maximum variation
39、in attenuation: 1 dB Maximum residual attenuation 15 minutes after removing the load: 0,1 dB Visual examination in accordance with EN 3745-201 Number of samples: 3 Load to be applied: 50 N Rate at which the load is applied: 50 N/min mandrel 20 mm Cable tensile strength 505 For F 150 N, maximum varia
40、tion in attenuation: 0,5 dB Rupture load: 200 N Number of specimens: 3 Impact resistance 506 Permissible change in attenuation after the test: 0,5 dB The test is carried out at the temperature of 20 C Number of samples: 3 Length of sample: (2 0,01) m Load to be applied: 5 N Radius R of the intermedi
41、ate piece:15 mm Drop: 1 m Number of impact: 5 continued prEN 4641-100:2010 (E) 9 Table 4 Fibre optic cable test methods (continued) Designation of the test Test method EN 3745- Test conditions and results Cut-through 507 Visual examination in accordance with EN 3745-201 Variation of attenuation (thi
42、s parameter shall be monitored continuously during the test) Evaluation of the breakage or non-breakage of the specimen Number of samples: 3 Length of sample: (2 0,01) m Load to be applied: 20 N Rate of the load application F (50 10) N/min Duration of load application : 1 min Torsion 508 Maximum per
43、missible variation of attenuation: For one cycle: 0,2 dB For 1 000 cycles 0,5 dB Length of sample: 2 m 0,01 m Number of cycles: 1 000 Load to be applied: 150 N Distance between the rotating grip and the fixed grip: (0,25 0,01) m Kink 509 No kink as shown in the standard with a minimum bending radius
44、 of 5 X optical cable outside diameter: 10 mm Maximum permissible variation of attenuation: 3 dB Length of specimen: (2 0,01) m Loop minimum diameter value: 20 mm Bend 510 Maximum variation of attenuation 0,2 dB Residual attenuation: after removing the specimen from the test equipment 0,1 dB Visual
45、examination in accordance with EN 3745-201 Length of sample: (10 0,01) m Load to be applied (M) to ensure contact between the cable and the mandrel): 20 N Diameter of the mandrel D 25 mm Number (N) of turns: 10 Cable to cable abrasion 511 The outer diameter of electrical cable (CF, DM types or equiv
46、alent as defined in TR 6058) and optical cables, must be equivalent (around 16 gauge). The definition of failure is the exposure of: the conductor for electrical cable; the material under the external jacket (typically strength member) for optical cable. See EN 3475-511 (for electrical cable) Cat A:
47、 1 electrical cable + 1 optical cable minimum number of cycles 2 800 000, load 10 N Cat B: 2 optical cables minimum number of cycles 500 000, load 5 N continued prEN 4641-100:2010 (E) 10 Table 4 Fibre optic cable test methods (continued) Designation of the test Test method EN 3745- Test conditions a
48、nd results Flexure endurance 512 Examination of test specimen for damage in accordance with EN 3745-201 (visual examination). Maximum variation of attenuation: 0,2 dB Number of samples: 3 Length of the sample: (2 0,01) m Load to be applied: 10 N Diameter of mandrel: 25 mm Number of cycles: 3 000 Cru
49、sh resistance 513 Not applicable Cable twist bend 514 Not applicable Smoke density 601 The specific optical smoke density (average of samples) Dm 200 within 4 minutes test duration under both the flaming and non-flaming conditions. The value must be measured at the end of the test. Toxicity 602 Applicabl
