1、ASD STANDARD NORME ASD ASD NORM prEN 4641-001 Edition P 1 April 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 VE
2、RSION Aerospace series Cables, optical, 125 m diameter cladding Part 001: Technical specification Srie arospatiale Cbles, optiques, diamtre extrieur de la gaine optique 125 m Partie 001 : Spcification technique Luft- und Raumfahrt Kabel, optisch, 125 m Auendurchmesser des Fasermantels Teil 001: Tech
3、nische Spezifikation 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 ex
4、perts of the concerned 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
5、 by users and 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 t
6、he EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 30 April 2008 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2008 by ASD-STAN Copyright ASD-STA
7、N Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 4641-001:2008 2 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Terms and definitions, symbols and abbreviations.3 4 Required characteristics.4 4.1 Descript
8、ion .4 4.2 Materials and construction of cables 4 4.3 Fibre construction .4 4.4 Cable construction 4 5 Test methods5 5.1 Tests in accordance with EN 3745-1005 5.2 Special tests.7 6 Quality assurance7 6.1 General7 6.2 Qualification .7 6.3 Qualification group and maintenance of qualification 11 6.4 Qu
9、ality control. 11 7 Designation and marking. 11 7.1 General principle of designation. 11 7.2 Marking 11 7.3 Colours 11 8 Delivery conditions. 12 8.1 Packaging 12 8.2 Labelling 12 8.3 Delivery lengths 12 9 Storage. 12 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STAN
10、s 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. Copyright ASD-STAN Provided by IHS under license with AECMA Not for ResaleNo reproduction or networkin
11、g permitted without license from IHS-,-,-prEN 4641-001:2008 3 1 Scope This standard specifies the general characteristics, conditions for qualification, acceptance and quality assurance, as well as the test methods and groups for fibre optic cables with a cladding of 125 m outside diameter. 2 Normat
12、ive 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 (including any amendments) applies. ISO 2574, Aircraft Electrical cabl
13、es Identification marking. EN 2591-602, Aerospace series Elements of electrical and optical connection Test methods Part 602: Optical elements Variation of attenuation and optical discontinuity. EN 3745-100*, Aerospace series Fibres and cables, optical, aircraft use Test methods. EN 3838, Aerospace
14、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 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts. IEC 60793-1-42, Optic
15、al fibres Part 1-42: Measurement methods and test procedures Chromatic dispersion. 3 Terms and definitions, symbols and abbreviations For the purposes of this document, the following terms and definitions and the symbols and abbreviations given in EN 3745-100 apply. 3.1 tight structure a tight struc
16、ture cable can be defined as a cable where there is very limited movement of the fibre within the buffer and other elements of the cable construction This type of cable is typically designed for use with non-pull proof fibre optic contacts. 3.2 semi-loose structure a semi-loose structure cable can b
17、e defined as a cable where the fibre is designed to move within the buffer and other elements of the cable construction This type of cable is typically designed for use with full pull proof fibre optic contacts. *And all parts quoted in this standard. 1) Published as ASD Prestandard at the date of p
18、ublication of this standard. Copyright ASD-STAN Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 4641-001:20084 4 Required characteristics 4.1 Description The characteristics of the cables, tested according to the method
19、s described hereafter shall comply with the values defined in the product standard. 4.2 Materials and construction of cables The configuration, dimensions and mass of the cable shall meet the values specified in the product standard as well as the requirements hereafter. Materials and colour shall m
20、eet the product standard. 4.3 Fibre construction The fibre shall consist of a single all silica core and a silica cladding protected by a primary coating in accordance with the product standards. See Figure 1. Figure 1 Fibre construction (axial view) 4.4 Cable construction The typical requirements o
21、f the cable shall be an outer jacket, strength member, buffer, and fibre, which is protected by a primary coating. See example at Figure 2. Details of the materials used for the outer sheath, strength member, inner sheath and buffer shall be defined in the product standard. BufferPrimary coatingClad
22、dingCoreCopyright ASD-STAN Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 4641-001:20085 Figure 2 Example of cable construction 5 Test methods 5.1 Tests in accordance with EN 3745-100 5.1.1 Optical fibre See Table 1. T
23、able 1 Optical fibre test methods Designation of test Test method Test performance/conditions Fibre visual examination EN 3745-201 The primary coating and buffer shall have the correct identification outer colour if specified in the product standard. Fibre core dimensions EN 3745-202 As detailed in
24、the product standard Optical fibre proof test EN 3745-501 As detailed in the product standard Fibre attenuation EN 3745-301 Method A As detailed in the product standard Numerical aperture EN 3745-302 As detailed in the product standard Bandwidth EN 3745-403 As detailed in the product standard 5.1.2
25、Fibre optic cable See Table 2. Outer jacket Strength member Inner sheath Buffer Core Cladding Primary coating Copyright ASD-STAN Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 4641-001:20086 Table 2 Fibre optic cable t
26、est methods Designation of test Test method EN 3745- Test performance/conditions/criteria Visual inspection 201 The outer jacket shall have the correct identification if specified in the appropriate product standard. The coating shall be continuous and free of visible defects such as lumps, abrasion
27、s, cracks, splits or blisters. As detailed in the appropriate product standard Primary coating outside diameter 203 As detailed in the appropriate product standard Buffer diameter 203 As detailed in the appropriate product standard Outer jacket outside diameter 203 As detailed in the appropriate pro
28、duct standard Outer jacket wall thickness 203 As detailed in the appropriate product standard To be measured at both ends of each batch. Longitudinal stability 205 As detailed in the appropriate product standard Attenuation 301: Method A As detailed in the appropriate product standard Temperature cy
29、cling 402 As detailed in the appropriate product standard Attenuation during temperature cycling 301: Method C As detailed in the appropriate product standard Thermal shock 404 As detailed in the appropriate product standard Cold bend 406 As detailed in the appropriate product standard Flammability
30、407 As detailed in the appropriate product standard Thermal life 410 As detailed in the appropriate product standard Resistance to fluids 411 As detailed in the appropriate product standard Humidity resistance 412 As detailed in the appropriate product standard Scrape abrasion 503 As detailed in the
31、 appropriate product standard Micro-bending 504 As detailed in the appropriate product standard Tensile strength 505 As detailed in the appropriate product standard Impact 506 As detailed in the appropriate product standard Cut-through 507 As detailed in the appropriate product standard Torsion 508
32、As detailed in the appropriate product standard Kink 509 As detailed in the appropriate product standard Bend 510 As detailed in the appropriate product standard Cable to cable abrasion 511 As detailed in the appropriate product standard Flexure endurance 512 As detailed in the appropriate product s
33、tandard Crush resistance 513 As detailed in the appropriate product standard Bend twist 514 As detailed in the appropriate product standard Smoke density 601 As detailed in the appropriate product standard continued Copyright ASD-STAN Provided by IHS under license with AECMA Not for ResaleNo reprodu
34、ction or networking permitted without license from IHS-,-,-prEN 4641-001:2008 7 Table 2 Fibre optic cable test methods (concluded) Designation of test Test method EN 3745- Test performance/conditions/criteria Toxicity 602 As detailed in the appropriate product standard Nuclear radiation 603 As detai
35、led in the appropriate product standard Cable stripping 701 As detailed in the appropriate product standard Durability of manufacturers identity markings 703 As detailed in the appropriate product standard Contrast measurement 705 As detailed in the appropriate product standard Durability of user id
36、entification markings 706 EN 3838 except “Voltage test“ As detailed in the appropriate product standard Include all sections of concentricity 202 As detailed in the appropriate product standard 5.2 Special tests Additional tests particular to the product may be defined in the specific product standa
37、rd. 6 Quality assurance 6.1 General See EN 9133. 6.2 Qualification 6.2.1 Qualification conditions The cables shall be submitted for qualification tests on drums, spools or in coils of sufficient length, wound evenly and uniformly. Each drum, spool or coil shall have a label containing information gi
38、ven in 8.2. 6.2.2 Qualification tests See Table 3. Tests indicated by X in the Qualification column are applicable. Copyright ASD-STAN Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 4641-001:20088 Table 3 Tests: method
39、s, application, requirements Description Standard Qualification On all cables Prior to delivery Periodic Every 3 years Requirements (and / or particulars) Sanction / Approval Optical fibre Fibre dimension EN 3745 X X Test method 202 As detailed in the appropriate product standard Fibre dimension Coa
40、ting / cladding EN 3745 X X Test method 202 As detailed in the appropriate product standard Numerical aperture EN 3745 X X Test method 302 Method A or B As detailed in the appropriate product standard Index of refraction IEC 60793 X X IEC 60793-1-42 Not applicable for singlemode fibre As detailed in
41、 the appropriate product standard Bandwidth IEC 60793 X X IEC 60793-1-42 Not applicable to singlemode fibre As detailed in the appropriate product standard Fibre chromatic dispersion IEC 60793 X IEC 60793-1-42 As detailed in the appropriate product standard Optical cable Visual inspection EN 3745 X
42、X X Test method 201 As detailed in the appropriate product standard Cable primary coating EN 3745 X X Test method 202 As detailed in the appropriate product standard Cable external dimension EN 3745 X X Test method 202 As detailed in the appropriate product standard Cable longitudinal stability EN 3
43、745 X X Test method 205 As detailed in the appropriate product standard Cable attenuation 20 C EN 3745 X X Test method 301 Method A or B as defined in the product standard As detailed in the appropriate product standard Cable attenuation 55 C / 125 C EN 3745 X X Test method 301 Method C As detailed
44、in the appropriate product standard continued Copyright ASD-STAN Provided by IHS under license with AECMA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 4641-001:20089Table 3 Tests: methods, application, requirements (continued) Description Standard Qualifica
45、tion On all cables Prior to delivery Periodic Every 3 years Requirements (and / or particulars) Sanction / Approval Optical cable (continued) Optical discontinuity EN 2591 X Test method 602 Method B Optical Discontinuity As detailed in the appropriate product standard Immunity to ambient light coupl
46、ing EN 3745 X Test method 305 As detailed in the appropriate product standard Variation of attenuation during temperature cycling EN 3745 X X Test method 306 As detailed in the appropriate product standard Accelerated ageing EN 3745 X Test method 401 Test to be carried out at 125 C As detailed in th
47、e appropriate product standard Thermal shock EN 3745 X Test method 404 As detailed in the appropriate product standard Cold bend test EN 3745 X Test method 406 Method A or B as defined in the product standard As detailed in the appropriate product standard Flammability EN 3745 X Test method 407 As d
48、etailed in the appropriate product standard Thermal life EN 3745 X Test method 410 As detailed in the appropriate product standard Resistance to fluids EN 3909 X Tests required to be defined in the appropriate product standard As detailed in the appropriate product standard Humidity resistance EN 3745 X Test method 412 As detailed in the appropriate product standard Optical fibre proof test EN 3745 X Test method 501 As detailed in the appropriate product standard Scrape abrasion EN 3745 X Test method 503 As detailed in the appropriate product standard Micro bending EN
