1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Fibre organisers and closuresto be used in optical fibrecommunication systems Product specifications Part 2-8: Mi
2、croduct connectors, for air blownoptical fibres, Type 1BS EN 50411-2-8:2009National forewordThis British Standard is the UK implementation of EN 50411-2-8:2009.The UK participation in its preparation was entrusted by Technical CommitteeGEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic inte
3、rconnectingdevices and passive components.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580
4、 62612 8ICS 33.180.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 July 2009Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS E
5、N 50411-2-8:2009EUROPEAN STANDARD EN 50411-2-8 NORME EUROPENNE EUROPISCHE NORM May 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Bru
6、ssels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50411-2-8:2009 E ICS 33.180.20 English version Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 2-8: Microdu
7、ct connectors, for air blown optical fibres, Type 1 Organiseurs et botiers de fibres utiliser dans les systmes de communication par fibres optiques - Spcifications de produits - Partie 2-8: Connecteurs en microconduits de Type 1, destins aux fibres optiques souffles lair comprim LWL-Spleikassetten u
8、nd -Muffen fr die Anwendung in LWL-Kommunikationssystemen - Produktnormen - Teil 2-8: ABF-Mikrorohrverbinder, Bauart 1 This European Standard was approved by CENELEC on 2008-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
9、 this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official ver
10、sions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees o
11、f Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United King
12、dom. BS EN 50411-2-8:2009EN 50411-2-8:2009 2 Foreword This European Standard was prepared by the Technical Committee CENELEC TC 86BXA, Fibre optic interconnect, passive and connectorised components. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50411-2-8 on
13、 2008-12-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-12-
14、01 _ BS EN 50411-2-8:2009 3 EN 50411-2-8:2009 Fibre organisers and closures to be used in optical fibre communication systems - Product specifications Microduct connectors, for air blown optical fibres, Type 1 Description Construction: Sealed microduct connector Tube seals: Cold applied Connector ty
15、pes: Straight, Straight bulkhead, Reducer, Close down, Liquid block, Liquid block with barb end, End stop and Stem. Performance Applications: Optical fibre cable networks EN 61753-1 Related documents: EN 61300 series Fibre optic interconnecting devices and passive components Basic test and measureme
16、nt procedures (IEC 61300 series) EN 61753-1 Fibre optic interconnecting devices and passive components performance standard Part 1: General and guidance for performance standards (IEC 61753-1) ETSI EN 300 019 series Environmental Engineering (EE) Environmental conditions and environmental tests for
17、telecommunications equipment Construction: Examples Straight through Connector dimensions for non-bulkhead mounting Nominal microduct outside diameter Diameter or across corners D Length L max. max.mm mm 3 mm 9 23 4 mm 14 32 5 mm 15 40 6 mm 15 38 7 mm 18 42 8 mm 20 46 10 mm 24 50 12 mm 25 54 14 mm 2
18、9 62 15 mm 33 70 16 mm L Microduct diameter D Microduct connector BS EN 50411-2-8:2009EN 50411-2-8:2009 4 Contents 1 Scope 7 1.1 Product identification . 7 1.2 Operating environment 7 1.3 Reliability . 7 1.4 Quality assurance 7 1.5 Safety labelling Warning: need for an over pressure device in sealed
19、 closures. 7 2 Normative references 8 3 Definitions and abbreviations 9 3.1 Definitions 9 3.2 Abbreviations . 11 4 Description . 11 4.1 Microduct connector housing 11 4.2 Burst pressure . 15 4.3 Microduct seals . 15 4.4 Materials 15 4.5 Marking 15 5 Variants . 16 6 Dimensional requirements . 17 6.1
20、Dimensions diagram . 17 6.2 Straight connectors Equal microduct 17 6.3 Straight bulkhead connectors Equal microduct 18 6.4 ID reducer/enlarger stem connectors 18 6.5 ID reducer/enlarger connectors . 19 6.6 OD reducer/enlarger stem connectors 19 6.7 OD reducer/enlarger connectors . 20 6.8 ID and OD r
21、educer/enlarger stem connectors . 20 6.9 ID and OD reducer/enlarger connectors 21 6.10 Close Down connectors . 21 6.11 Liquid Block connector . 22 6.12 Liquid Block with barb end connectors 22 6.13 End Stop connectors . 22 7 Tests . 23 7.1 Sample size . 23 7.2 Test sample preparation . 23 7.3 Test a
22、nd measurement methods 24 7.4 Test sequence . 24 7.5 Pass/fail criteria . 24 8 Test report 24 9 Performance requirements . 24 9.1 Bend radius . 24 9.2 Dimensional and marking requirements 24 9.3 Sealing, optical and appearance performance criteria 24 9.4 Mechanical sealing performance requirements 2
23、6 9.5 Environmental sealing performance requirements 28 BS EN 50411-2-8:2009 5 EN 50411-2-8:2009 Annex A (informative) Sample size and product sourcing requirements 30 Annex B (informative) Air blown fibre microduct Mean outside diameter range . 31 Annex C (normative) Test method High pressure resis
24、tance Safety . 32 Annex D (normative) Test method Installation . 33 Annex E (normative) Test method Insertion force 34 Bibliography 35 Figures Figure 1 Fibre flow impedance 11 Figure 2 Fibre flow impedance Both direction step . 11 Figure 3 Fibre flow impedance One direction step . 12 Figure 4 Fibre
25、flow impedance Acute angled step 12 Figure 5 Typical connector elements Cross sectional view. 13 Figure 6 Straight Equal microduct outside diameters . 13 Figure 7 Straight bulkhead Equal microduct outside diameters 13 Figure 8 ID reducer/enlarger stem Unequal microducts with a different ID OD reduce
26、r/enlarger stem Unequal microducts with a different OD ID and OD reducer/enlarger stem Unequal microducts with a different ID and OD 13 Figure 9 ID reducer/enlarger Unequal microducts with a different ID OD reducer/enlarger Unequal microducts with a different OD ID and OD reducer/enlarger Unequal mi
27、croducts with a different ID and OD 14 Figure 10 Close down assembly access for blowing head equipment 14 Figure 11 Liquid block transition point to stop liquid migration 14 Figure 12 Liquid block with a barb end transition point to stop liquid migration . 14 Figure 13 End stop. 14 Figure 14 Microdu
28、ct interconnection geometry 15 Figure 15 Microduct connector overall dimensions . 17 Figure 16 Sealing performance test sample (tank to source) 23 Figure 17 Optical test chamber Liquid block connectors (only) 24 Figure E.1 Test apparatus for insertion force method . 34 BS EN 50411-2-8:2009EN 50411-2
29、-8:2009 6 Tables Table 1 Micro-duct connector Variants EN 50411-2-8 XXX/XXX1- XXX/XXX2 XXX3 X416 Table 2 Straight connector design Maximum dimensions 17 Table 3 Straight bulkhead connector Maximum dimensions 18 Table 4 ID reducer/enlarger stem connector Maximum dimensions 18 Table 5 ID reducer/enlar
30、ger connector Maximum dimensions . 19 Table 6 OD reducer/enlarger stem connector Maximum dimensions . 19 Table 7 OD reducer/enlarger connector Maximum dimensions . 20 Table 8 ID and OD reducer/enlarger stem connector Maximum dimensions . 20 Table 9 ID and OD reducer/enlarger connector Maximum dimens
31、ions 21 Table 10 Close Down connector Maximum dimensions . 21 Table 11 Liquid Block connectors Maximum dimensions . 22 Table 12 Liquid Block with barb end connectors - Maximum dimensions . 22 Table 13 End Stop connector . 22 Table 14 Tightness, optical and appearance performance criteria 25 Table 15
32、 Mechanical requirements 26 Table 16 Environmental sealing performance requirements . 28 Table A.1 Minimum sample size requirements 30 Table B.1 Air blown fibre microduct Mean outside diameter range 31 BS EN 50411-2-8:2009 7 EN 50411-2-8:2009 1 Scope 1.1 Product identification This specification con
33、tains the initial, start of life dimensional, optical, mechanical and environmental performance requirements of a fully installed blown fibre microduct connector in order for it to be categorised as an EN standard product. This product specification covers the following microduct connectors to suit
34、a wide range of blown fibre applications, for floating or fixed: joining the same size microduct, or different sizes of microduct; joining same size protected microduct, to same or different size of microduct or protected microduct; disconnection of the connector to gain access, for example, to inse
35、rt blowing equipment; a means to seal the fibre inside the connector to prevent the flow of liquids; close off open-ended microducts. This product specification covers blown fibre microduct connectors for use in sub-ducts or protected micro-duct cable closures as specified in EN 50411-2-5 for use in
36、 outside environments, and for both sealed and non-sealed closures. The outside environment includes both subterranean (underground) and/or aerial applications. This document includes reducer/enlarger products. It may not be possible to blow through these devices. Manual feeding may be required beca
37、use of the pressure gradient step. This product specification does not apply to microduct connectors for use in direct sunlight. 1.2 Operating environment The tests selected, combined with the severity and duration, are representative of an outside plant environment for both subterranean and aerial
38、environments defined by ETSI EN 300 019 series: class 8.1: underground locations, EN 61753-1: all categories. 1.3 Reliability Whilst the anticipated service life expectancy of the product in these environments is 20 years, compliance with this specification does not guarantee the reliability of the
39、product. This should be predicted using a recognised reliability assessment programme. 1.4 Quality assurance Compliance with this specification does not guarantee the manufacturing consistency of the product. This should be maintained using a recognised quality assurance programme. 1.5 Safety labell
40、ing Warning: need for an over pressure device in sealed closures All air blown fibre connectors, supplied to this standard, must have a warning on the product or packaging to read as follows: Where the air blown fibre connector is installed inside a sealed airtight closure or housing, the closure mu
41、st be able to be fitted with an over pressure safety system that is able to exhaust air to atmospheric pressure. BS EN 50411-2-8:2009EN 50411-2-8:2009 8 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the ed
42、ition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 50411-2-5 Fibre organisers and closures to be used in optical fibre communication systems Product specifications Part 2-5: Sealed closures for air blown fibre microduct,
43、type 1, for category S see Figure 5. b) Straight connector (equal microduct): see Figure 6. c) Straight bulkhead connector (equal microduct): see Figure 7. d) ID reducer/enlarger stem to adapt one size of tube to another (unequal microduct): see Figure 8. e) ID reducer/enlarger to maintain a common
44、internal diameter with different outside diameters: see Figure 9. f) OD reducer/enlarger stem to adapt one size of tube to another (unequal microduct): see Figure 8. g) OD reducer/enlarger to maintain a common internal diameter with different outside diameters: see Figure 9. h) ID and OD reducer/enl
45、arger stem to adapt one size of tube to another (unequal microduct): see Figure 8. i) ID and OD reducer/enlarger to maintain a common internal diameter with different outside diameters: see Figure 9. j) Close down for fibre access for blowing head equipment for cascade blowing: see Figure 10. k) Liq
46、uid block transition point to prevent liquids from flowing (optical tests required): see Figure 11. l) Liquid block barb end connector (equal microduct): see Figure 12. m) End stop to seal an open micro-duct: see Figure 13. BS EN 50411-2-8:2009 13 EN 50411-2-8:2009 Figure 5 Typical connector element
47、s Cross sectional view Dimension D should be the overall outer diameter. Figure 6 Straight Equal microduct outside diameters Figure 7 Straight bulkhead Equal microduct outside diameters or Figure 8 ID reducer/enlarger stem Unequal microducts with a different ID OD reducer/enlarger stem Unequal micro
48、ducts with a different OD ID and OD reducer/enlarger stem Unequal microducts with a different ID and OD L DLDMicroduct outside diameter Connector seal(s) in contact with the micro-duct outside diameter Tube retainers minimum centres between connectors L H bulkhead hole diameter D at the largest point depending on the design CL D L DBS EN 50411-2-8:2009EN 50411-2-8:2009 14 or Figure 9 ID reducer/enlarger Unequal microducts with a different ID OD reducer/enlarger Unequal microducts with a differen
