1、BSI Standards PublicationFibre organisers and closures to be used in optical fibre communication systems Product specificationsPart 2-10: Sealed fibre splice closures type 2, category G, for FTTH optical distribution networksBS EN 50411-2-10:2015National forewordThis British Standard is the UK imple
2、mentation of EN 50411-2-10:2015.The UK participation in its preparation was entrusted by TechnicalCommittee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre opticinterconnecting devices and passive components.A list of organizations represented on this committee can be obtained onrequest to its
3、 secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 81844 8ICS 33.180.20Compliance with a British Standard ca
4、nnot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 50411-2-10:2015EUROPEAN STANDARD NORME EUROPENNE E
5、UROPISCHE NORM EN 50411-2-10 January 2015 ICS 33.180.20 English Version Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 2-10: Sealed fibre splice closures type 2, category G, for FTTH optical distribution networks Organiseurs et botiers
6、 de fibres utiliser dans les systmes de communication par fibres optiques - Spcifications de produits - Partie 2-10: Botiers pissure de fibres scells Type 2, catgorie G, pour rseaux de distribution optiques FttH LWL-Spleikassetten und -Muffen fr die Anwendung in LWL-Kommunikationssystemen - Produktn
7、ormen - Teil 2-10: Abgedichtete LWL-Muffen Typ 2 fr die Kategorie G fr optische FTTH-Verteilnetze This European Standard was approved by CENELEC on 2014-11-11. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standa
8、rd 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 CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (Engl
9、ish, 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 CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of
10、 Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
11、 Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All right
12、s of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50411-2-10:2015 E BS EN 50411-2-10:2015EN 50411-2-10:2015 2 Contents Foreword 4 1 Scope . 6 1.1 Product definition 6 1.2 Operating environment . 6 1.3 Reliability 6 1.4 Quality assurance. 6 1.5 Allowed
13、 fibre and cable types 6 2 Normative references . 6 3 Description 7 3.1 Fibre splice closure 7 3.2 Closure overpressure safety 8 3.3 Cable and closure seals . 8 3.4 Fibre management system . 9 3.5 Materials . 9 3.6 Colour and marking 9 4 Variants 10 5 Dimensional requirements 12 6 Tests 13 6.1 Sampl
14、e size 13 6.2 Test sample preparation 13 6.3 Test and measurement methods . 14 6.4 Test sequence 14 6.5 Pass/fail criteria 14 7 Test report . 14 8 Performance requirements 15 8.1 Dimensional and marking requirements 15 8.2 Sealing, optical and appearance performance criteria. 15 8.3 Mechanical seali
15、ng performance requirements . 16 8.4 Environmental sealing performance requirements 18 8.5 Mechanical optical performance requirements 19 8.6 Environmental optical performance requirements . 20 Annex A (informative) Fibre for test sample details . 21 Annex B (informative) Sample size and product sou
16、rcing requirements 22 Figures Figure 1 8 Figure 2 8 Figure 3 8 Figure 4 Outline dimensions of closure Type 2 12 Figure 5 a) Track joint configuration sample 13 Figure 5 b) Distribution joint configuration sample . 14 BS EN 50411-2-10:2015 3 EN 50411-2-10:2015 Tables Table 1 Fibre splice closure for
17、optical distribution networks, Type 2, Category G - Variants . 10 Table 2 - Closure size and minimum splice capacity 11 Table 3 Closure Type 2 dimensions . 12 Table 4 Sealing, optical and appearance performance criteria 15 Table 5 Mechanical sealing performance requirements . 16 Table 6 Environmenta
18、l sealing performance requirements 18 Table 7 Mechanical optical performance requirements 19 Table 7 Mechanical optical performance requirements (continued) 20 Table 8 Environmental optical performance requirements . 20 Table A.1 Fibre references . 21 Table A.2 Fibre references . 21 Table B.1 Minimu
19、m sample size requirements 22 BS EN 50411-2-10:2015EN 50411-2-10:2015 4 Foreword This document (EN 50411-2-10:2015) has been prepared by CLC/TC 86BXA “Fibre optic interconnect, passive and connectorised components“. The following dates are fixed: latest date by which this document has to be implemen
20、ted at national level by publication of an identical national standard or by endorsement (dop) 2015-11-11 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2017-11-11 Attention is drawn to the possibility that some of the elements of this document
21、may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. BS EN 50411-2-10:2015 5 EN 50411-2-10:2015 Fibre organisers and closures to be used in optical fibre communication systems Product specifications Part 2-10: Sealed fib
22、re splice closures type 2, category G, for FTTH optical distribution networks Description Performance Construction: Sealed closures IP67 Fibre management: Single Circuit, Single Element, Multiple Element and/or Single/Multiple Ribbon Applications: Optical fibre cable networks for ground level EN 617
23、53-1, category G Related documents: EN 60793-2-50 Optical fibres Part 2-50: Product specifications Sectional specification for class B single-mode fibres (IEC 60793-2-50) EN 60794-2 Optical fibre cables Part 2: Indoor cables Sectional specification (IEC 60794-2) EN 60794-3 Optical fibre cables Part
24、3: Sectional specification Outdoor cables (IEC 60794-3) EN 61753-1 Fibre optic interconnecting devices and passive components Part 1: General and guidance for performance standard (IEC 61753-1) EN 61300 series Fibre optic interconnecting devices and passive components Basic test and measurement proc
25、edures (IEC 61300 series) Construction and splice capacity: LHWDome type Pan type LHWIn-line type Closure size and minimum total splice capacity Fibre management system separation level Closure size Single Circuit (SC) Single Element (SE) Single Ribbon (SR) Multiple Element (ME) Multiple Ribbon (MR)
26、 R 4 12 - - - A 8 12 - 24 - B 16 24 12 48 24 C 32 48 24 96 48 D 48 72 48 144 96 E 96 144 96 288 192 F 144 216 144 432 288 G 192 288 192 576 384 H 288 432 288 864 576 BS EN 50411-2-10:2015EN 50411-2-10:2015 6 1 Scope 1.1 Product definition This specification contains the dimensional, optical, mechani
27、cal and environmental performance requirements of a fully installed splice closure for use in optical distribution networks at ground level (category G) in order for it to be categorised as an EN standard product. This type of sealed closure is intended for easy and/or frequent opening and closing i
28、n FTTH distribution and drop cable networks. NOTE The sealing performance requirements and test severities of these closures are selected to obtain an IP 67 intrusion protection performance as defined in EN 60529. 1.2 Operating environment The tests selected combined with the severity and duration a
29、re representative of an outside plant for ground level environment defined by EN 61753-1, category G: ground level. This corresponds with: - operating temperature range: -40 C to +65 C; - direct exposure to non weather protected outside plant conditions; - deployment at ground level up to 3 metres a
30、bove ground level; - additionally to the category G environment, a deployment till 1 metre below ground level is added. Direct buried applications are allowed, however additional protection will be required when the locations are intended for passage of cars or other heavy vehicles. 1.3 Reliability
31、Whilst the anticipated service life expectancy of the product in this environment is 20 years, compliance with this specification does not guarantee the reliability of the product. This should be predicted using a recognised reliability assessment programme. 1.4 Quality assurance Compliance with thi
32、s specification does not guarantee the manufacturing consistency of the product. This should be maintained using a recognised quality assurance programme. 1.5 Allowed fibre and cable types Although the performance tests are carried out on test samples containing dispersion unshifted single mode fibr
33、e (see Annex A), the closure, once tested according to this product specification, will be also suited for other fibre types like dispersion shifted, non-zero dispersion shifted and multimode fibres. This closure standard allows both single mode and multimode fibre to be used and covers IEC standard
34、 optical fibre cables with their various fibre capacities, types and designs. This includes, but is not limited to, optical fibre cable standards EN 60794-2 (indoor), EN 60794-3 (outdoor). 2 Normative references The following documents, in whole or in part, are normatively referenced in this documen
35、t and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 60793-2-50 Optical fibres Part 2-50: Product specifications Sectional specification for clas
36、s B single-mode fibres (IEC 60793-2-50) EN 60794-2 Optical fibre cables Part 2: Indoor cables Sectional specification (IEC 60794-2) EN 61300 Series Fibre optic interconnecting devices and passive components Basic test and measurement procedures (IEC 61300 Series) EN 61300-2-1 Part 2-1: Tests Vibrati
37、on (sinusoidal) (IEC 61300-2-1) EN 61300-2-4 Part 2-4: Tests Fibre/cable retention (IEC 61300-2-4) EN 61300-2-5 Part 2-5: Tests Torsion (IEC 61300-2-5) BS EN 50411-2-10:2015 7 EN 50411-2-10:2015 EN 61300-2-10 Part 2-10: Test Crush resistance (IEC 61300-2-10) EN 61300-2-12 Part 2-12: Tests Impact (IE
38、C 61300-2-12) EN 61300-2-22 Part 2-22: Tests Change of temperature (IEC 61300-2-22) EN 61300-2-23 Part 2-23: Tests Sealing for non-pressurised closures of fibre optic devices (IEC 61300-2-23) EN 61300-2-26 Part 2-26: Tests Salt mist (IEC 61300-2-26) EN 61300-2-33 Part 2-33: Tests Assembly and disass
39、embly of fibre optic mechanical splices, fibre management systems and closures (IEC 61300-2-33) EN 61300-2-34 Part 2-34: Tests Resistance to solvents and contaminating fluids of interconnecting components and closures (IEC 61300-2-34) EN 61300-2-37 Part 2-37: Tests Cable bending for fibre optic clos
40、ures (IEC 61300-2-37) EN 61300-2-38 Part 2-38: Tests Sealing for pressurized fibre optic closures (IEC 61300-2-38) EN 61300-3-1 Part 3-1: Examinations and measurements Visual examination (IEC 61300-3-1) EN 61300-3-3 Part 3-3: Examinations and measurements Active monitoring of changes in attenuation
41、and return loss (IEC 61300-3-3) EN 61300-3-28 Part 3-28: Examinations and measurements Transient loss (IEC 61300-3-28) EN 61753-1 Fibre optic interconnecting devices and passive components performance standard Part 1: General and guidance for performance standards (IEC 61753-1) 3 Description 3.1 Fib
42、re splice closure A fibre splice closure comprises a housing providing a mean to attach the ends of the incoming and outcoming cables and a means for containing and protecting the fibres, splices and other passive optical devices. This is not to be confused with an optical closure for blowing cable
43、or fibre. This comprises an access housing that allows the interconnection of cable ducts or tubes and is attached to the ends of the ducts or cables containing empty tubes. However, EN 50411-2-10 shall be used when air blown fibres are spliced inside this type of closure. The closure provides facil
44、ities for environmental protection, housing for a fibre management system and sealing of input and output optical fibre cables. In order to comply with the standard, the optical functionality, geometrical, environmental and mechanical requirements are defined. The design of the closure housing shall
45、 allow the jointing of two or more cable ends in the following configurations or applications: BS EN 50411-2-10:2015EN 50411-2-10:2015 8 (T) Track joint configuration used to interconnect at least two cables (example: drop cable repair closure) Cable CableClosureFigure 1 (S) Spur joint configuration
46、 used to split one cable into at least 2 smaller cables. Figure 2 (D) Distribution joint configuration used on customer feed cable with minimum of 8 cable entries (D1), 10 cable entries (D2), 18 cable entries (D3) or 34 cable entries (D4) (see Clause 4). CableCableClosureDrop cable(s)Uncut fibresFig
47、ure 3 NOTE Cable entries can be more than one cable per cable entry port. The design of the distribution and spur joint closure housing shall allow the joining together of at least one pair of cables which are not at the end of a cable section, without cutting all fibres between both cable openings.
48、 This application is generally known as distribution joint or external node, but also called a mid-span closure or balloon splice. It is desirable that the distribution closure can be re-opened when necessary without interruption or disturbance of the traffic of the live circuits. 3.2 Closure overpr
49、essure safety Overpressure can build up in sealed closures due to temperature differentials, or due to atmospheric pressure changes over a period of time, or due to flash testing of the seals after installation, or due to incorrect installation techniques. Care should be taken when opening a sealed closure. Provisions shall be made that overpressure is exhausted when opening the closure prior to complete removal of the cover. For a
