BS EN 50411-2-10:2015 BSI Standards Publication 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 BRITISH STANDARD BS EN 50411-2-10:2015 National foreword This British Standard is the UK implementation of EN 50411-2-10:2015 The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting devices and passive components A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2015 Published by BSI Standards Limited 2015 ISBN 978 580 81844 ICS 33.180.20 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2015 Amendments/corrigenda issued since publication Date Text affected BS EN 50411-2-10:2015 EUROPEAN STANDARD EN 50411-2-10 NORME EUROPÉENNE EUROPÄISCHE NORM 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 btiers de fibres utiliser dans les systèmes de communication par fibres optiques Spécifications de produits - Partie 2-10: Btiers épissure de fibres scellés Type 2, catégorie G, pour réseaux de distribution optiques FttH LWL-Spleißkassetten und -Muffen für die Anwendung in LWL-Kommunikationssystemen - Produktnormen - Teil 210: Abgedichtete LWL-Muffen Typ für die Kategorie G für 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 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 CEN-CENELEC Management Centre or to any CENELEC member This European Standard exists in three official versions (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 CEN-CENELEC Management Centre has the same status as the official versions CENELEC members are the national electrotechnical committees of 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, Spain, Sweden, Switzerland, Turkey and the United Kingdom European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members Ref No EN 50411-2-10:2015 E BS EN 50411-2-10:2015 EN 50411-2-10:2015 –2– Contents Foreword Scope 1.1 Product definition 1.2 Operating environment 1.3 Reliability 1.4 Quality assurance 1.5 Allowed fibre and cable types Normative references Description 3.1 Fibre splice closure 3.2 Closure overpressure safety 3.3 Cable and closure seals 3.4 Fibre management system 3.5 Materials 3.6 Colour and marking Variants 10 Dimensional requirements 12 Tests 13 6.1 Sample 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 Test report 14 Performance requirements 15 8.1 Dimensional and marking requirements 15 8.2 Sealing, optical and appearance performance criteria 15 8.3 Mechanical sealing 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 sourcing requirements 22 Figures Figure Figure Figure Figure – Outline dimensions of closure Type 12 Figure a) – Track joint configuration sample 13 Figure b) – Distribution joint configuration sample 14 BS EN 50411-2-10:2015 –3– EN 50411-2-10:2015 Tables Table – Fibre splice closure for optical distribution networks, Type 2, Category G - Variants 10 Table - Closure size and minimum splice capacity 11 Table – Closure Type dimensions 12 Table – Sealing, optical and appearance performance criteria 15 Table – Mechanical sealing performance requirements 16 Table – Environmental sealing performance requirements 18 Table – Mechanical optical performance requirements 19 Table – Mechanical optical performance requirements (continued) 20 Table – Environmental optical performance requirements 20 Table A.1 – Fibre references 21 Table A.2 – Fibre references 21 Table B.1 – Minimum sample size requirements 22 BS EN 50411-2-10:2015 EN 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 implemented at national level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with this document have to be withdrawn (dop) 2015-11-11 (dow) 2017-11-11 Attention is drawn to the possibility that some of the elements of this document 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 fibre splice closures type 2, category G, for FTTH optical distribution networks Description Construction: Fibre management: Performance Applications: Sealed closures IP67 Single Circuit, Single Element, Multiple Element and/or Single/Multiple Ribbon Optical fibre cable networks for ground level EN 61753-1, 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) Optical fibre cables – Part 2: Indoor cables – Sectional specification (IEC 60794-2) Optical fibre cables – Part 3: Sectional specification – Outdoor cables (IEC 60794-3) Fibre optic interconnecting devices and passive components – Part 1: General and guidance for performance standard (IEC 61753-1) Fibre optic interconnecting devices and passive components – Basic test and measurement procedures (IEC 61300 series) EN 60794-2 EN 60794-3 EN 61753-1 EN 61300 series Construction and splice capacity: Closure size and minimum total splice capacity Fibre management system separation level L H W Dome type Pan type L H W In-line type Single Circuit (SC) Single Element (SE) Single Ribbon (SR) Multiple Element (ME) Multiple Ribbon (MR) R 12 - - - A 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 Closure size BS EN 50411-2-10:2015 EN 50411-2-10:2015 Scope 1.1 Product definition –6– This specification contains the dimensional, optical, mechanical 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 in 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 are representative of an outside plant for ground level environment defined by EN 61753-1, category G: ground level This corresponds with: - 1.3 operating temperature range: -40 °C to +65 °C; direct exposure to non weather protected outside plant conditions; deployment at ground level up to metres above ground level; additionally to the category G environment, a deployment till 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 Reliability 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 this 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 fibre (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 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) Normative references The following documents, in whole or in part, are normatively referenced in this document 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 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 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 – Vibration (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 (IEC 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 disassembly 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 closures (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 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) Description 3.1 Fibre 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 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 facilities 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 allow the jointing of two or more cable ends in the following configurations or applications: BS EN 50411-2-10:2015 EN 50411-2-10:2015 –8– (T) Track joint configuration used to interconnect at least two cables (example: drop cable repair closure) Cable Cable Closure Figure (S) Spur joint configuration used to split one cable into at least smaller cables Figure (D) Distribution joint configuration used on customer feed cable with minimum of cable entries (D1), 10 cable entries (D2), 18 cable entries (D3) or 34 cable entries (D4) (see Clause 4) Uncut fibres Cable Cable Closure Drop cable(s) Figure 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 This application is generally known as distribution joint or external node, but also called a midspan 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 overpressure 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 air blown fibre applications an overpressure release system is required for all sealed closures 3.3 Cable and closure seals The closure allows for a physical housing structure that provides optical cable fixing, sealing, anchoring, water and gas blocking, storage and routing up to the input and output fibres of the fibre management system BS EN 50411-2-10:2015 EN 50411-2-10:2015 – 10 – Variants Table – Fibre splice closure for optical distribution networks, Type 2, Category G - Variants EN 50411-2-10 – G –X1 –XX2 – XX3 –XX4 – X5 – X6 Variant No X1 Shape of closure D Dome shape closure P Pan shape closure I In-line closure Variant No XX2 Closure application – base number of cables T1 Track closure (2 cables minimum) S1 Spur closure (3 cables minimum) D1 Distribution (8 cables minimum) D2 Distribution (10 cables minimum) D3 Distribution (18 cables minimum) D4 Distribution (34 cables minimum) Variant No XX3 Nominal fibre storage radius 20 20 mm radius (for EN 60793-2-50, B6 fibres) 30 30 mm radius (for EN 60793-2-50, B1 fibres and B6 fibres) Variant No XX4 Fibre management system separation level SC Single Circuit (up to fibres) SE Single Element (up to 12 fibres) SR Single Ribbon (4 or more fibres per ribbon) ME Multiple Element (two or more units) MR Multiple Ribbon (six or more ribbons fibres per ribbons) BS EN 50411-2-10:2015 – 11 – EN 50411-2-10:2015 Depending on the selection of XX4, and the minimum required splice capacity, refer to Table to find X5 (closure size) Table - Closure size and minimum splice capacity X5 Closure size Minimum number of spliced fibres (without storage basket) Separation level Multiple Element Single Ribbon Multiple Ribbon Single Circuit Single Element splices/tray 12 splices/tray R 12 NA NA NA A 12 24 NA NA B 16 24 48 12 24 C 36 48 96 24 48 D 48 72 144 48 96 E 96 144 288 96 192 F 144 216 432 144 288 G 192 288 576 192 384 H 288 432 864 288 576 Variant No X6 12 splices/tray Loose tube storage basket N No storage basket Y Storage basket BS EN 50411-2-10:2015 EN 50411-2-10:2015 – 12 – Dimensional requirements L H W a) Dome type b) Pan type L H W c) In-line type Figure – Outline dimensions of closure Type Table – Closure Type dimensions Minimum total splice capacity NA: Not applicable Separation level Single Circuit Single Element Multiple Element Single Ribbon Multiple Ribbon splices/tray 12 splices/tray 24 splices/tray 12 splices/tray 24 splices/tray Overal l length mm a L R 12 NA NA NA 350 100 80 A 12 24 NA NA 400 200 100 B 16 24 48 12 24 450 200 150 C 36 48 96 24 48 500 200 200 D 48 72 144 48 96 600 350 250 E 96 144 288 96 192 750 400 350 F 144 216 432 144 288 800 450 400 G 192 288 576 192 384 850 500 450 H 288 432 864 288 576 900 500 450 Closure size a Outline closure envelope dimensions (max.) For In-line closures, add 100 mm to the corresponding value of L Overall width mm W Overall height mm H BS EN 50411-2-10:2015 – 13 – Tests 6.1 Sample size EN 50411-2-10:2015 Separate test samples for sealing performance and optical evaluation may be used For the purposes of this standard, a sealing performance test sample is defined as a closure installed with several cable ends Optical test samples shall be constructed as described in 6.2 Due to their complexity, consecutive testing on the same optical sample is allowed The minimum recommended sample sizes are given in Annex B 6.2 Test sample preparation Sealing performance test samples shall be provided with an air pressure test access valve The length of the cables extending from the closure shall be at least m The open ends of the cables shall be sealed Each applicable cable type at minimum and maximum cable dimensions shall be represented in the test program Optical test samples shall be constructed in such a way that they will cover all allowed functions of a track joint and/or distribution joint This shall be realised by building optical circuits for each fibre separation level (typical SC, SE, SR, ME or MR splicing and uncut fibre storage) The fibres for the optical test samples with 30 mm fibre storage radius (variant XX3 = 30) are EN 60793-2-50, B1.3 (information given in Table A.1) The fibres for the optical test samples with 20 mm fibre storage radius (variant XX3 = 20) are EN 60793-2-50 B6_a1 (information in Table A.2) Optical test sample construction: Both extremities of a looped cable are terminated in the track joint closure (see Figure a)) The length of the looped cable is chosen in such a way that it is longer than the “dead zone” of an OTDR This will allow the location of potential causes of optical losses and allow a distinction between a change in signal being induced by the organiser system in a single location or being distributed over the whole circuit length The required length depends on the selected pulse width and dynamic range of the OTDR Typically a cable loop length of 25 m to 50 m is applied for this purpose Circuits for connections to test equipment In Out Fibres 3 Track Joint Closure Looped Cable Cable Tubes Fibres spliced in SC, SE, SR, ME or MR trays Figure a) – Track joint configuration sample In the track joint closure sample the fibres from one cable end are connected to the fibres of the other cable end in such a way that light will sequentially flow through 10 selected fibres in the cable loop The first and the last fibre of this circuit will be spliced to the fibres of a drop cable for making external connections to a light source and optical power meter All relevant fibre separation levels (SC, SE, SR, ME or MR) are to be represented in the test sample, preferably in separate circuits that are connected to the optical test equipment BS EN 50411-2-10:2015 EN 50411-2-10:2015 – 14 – Circuits for connections to test equipment In 3 Fibres Distribution Joint Closure Track Joint Closure Cable Cable Drop cable for reconfiguration test Tubes Daniel Daems Out Fibres spliced in SC, SE ,SR,ME or MR trays Daniel Daems Uncut fibres stored in SC, SE, SR, ME or MR trays Figure b) – Distribution joint configuration sample In the middle of the looped cable, the cable jacket will be removed over a distance (= window cut) according to the installation instructions (see Figure b)) The bundle of uncut fibres will be inserted and stored inside the distribution joint closure Where uncut fibres can be stored in different separation levels (SC, SE, SR, ME or MR) each of these options shall be created, preferably in separate circuits A non-active drop cable will be installed in the distribution joint closure and the fibres will be stored randomly on the organiser system in between the uncut fibres The fibres of this drop cable will be accessed again during the intervention/reconfiguration test 21 6.3 Test and measurement methods All tests and measurements have been selected from EN 61300 Series Unless otherwise stated in the individual test details, all attenuation measurements shall be performed at 310 nm ± 25 nm, 550 nm ± 25 nm and 625 nm ± 25 nm for the environmental optical tests, and at 550 nm ± 25 nm and 625 nm ± 25 nm for the mechanical optical tests All optical loss changes indicated are referenced to the initial attenuation at the start of the test An “incoming fibre” is defined as a part of an optical circuit containing the fibre entering the product, spliced to a fibre leaving the product One optical circuit contains ten “incoming fibres” Light will sequentially flow through all “incoming fibres” No deviation from the specified test method is allowed 6.4 Test sequence There is no defined sequence in which tests – 22 (Annex B) shall be run Each test can be done with different test samples, or same test samples can be used for various tests In case of a failure during the consecutive testing, a new sample shall be prepared and the failed test shall be redone 6.5 Pass/fail criteria Tests 1-5 are used to check the pass/fail criteria A product will have met the requirements of this specification provided no failures occur in any test In the event of a failure occurring on a sealing performance test sample, the test shall be re run using a sample size double that of the original Due to the complexity of the optical test samples, consecutive testing on the same optical sample is allowed In case of a failure during the consecutive testing, a new sample shall be prepared and the failed test shall be redone Test report A fully documented test report and supporting data shall be prepared and shall be available for inspection as evidence that the tests described in Clause have been carried out in accordance with this specification BS EN 50411-2-10:2015 – 15 – Performance requirements 8.1 Dimensional and marking requirements EN 50411-2-10:2015 Dimensions and marking of the product shall be in accordance with the requirements of Clause 5, and shall be measured using the appropriate EN test method 8.2 Sealing, optical and appearance performance criteria Table – Sealing, optical and appearance performance criteria No Test Sealing performance after test Pressure loss during test Requirement No emission of air bubbles indicating a leak Difference in pressure before and after test shall be less than kPa Measurements taken at same atmospheric conditions Visual appearance No defects which would affect functionality of the closure Change in attenuation (Note 1, Note 2) Excursion losses: δIL ≤ 0,2 dB at 310 nm and 550 nm per incoming fibre during test δIL ≤ 0,5 dB at 625 nm per incoming fibre during test Residual losses: δIL ≤ 0,1 dB at 310 nm, 550 nm and 625 nm per incoming fibre after test Transient loss (Note 1) Transient losses: δIL ≤ 0,5 dB at 1550 nm per active circuit during test δIL ≤ dB at 625 nm per active circuit during test Residual losses: δIL ≤ 0,1 dB at 550 nm and 625 nm per active circuit after test Details Method: EN 61300-2-38, Method A Test temperature: 23 °C ± °C Test pressure: Internal overpressure 20 kPa ± kPa Immersion depth: Just below surface of water Duration: 15 Pre-conditioning procedure: Sample should be conditioned to room temperature for at least h Method: EN 61300-2-38, Method B Test temperature: As specified by individual test Test pressure: Internal overpressure 20 kPa ± kPa sealed at test temperature Pressure detector: Minimum resolution 0,1 kPa Pre-conditioning procedure: Sample should be conditioned to specified temperature at test pressure for at least h Method: EN 61300-3-1 Examination: Product shall be checked with naked eye Method: EN 61300-3-3, Method Wavelengths: 310 nm ± 25 nm 550 nm ± 25 nm 625 nm ± 25 nm Source stability: Within ± 0,05 dB over the measuring period Detector linearity: Within ± 0,05 dB over the dynamic range to be measured Measurements required: Before, during and after the test Sampling rate: Every 10 Method: EN 61300-3-28 Wavelengths: 550 nm ± 25 nm 625 nm ± 25 nm Source stability: Within ± 0,05 dB over the measuring period Detector linearity: Within ± 0,05 dB over the dynamic range to be measured Measurements required: Before, during and after the test Active circuit: 10 incoming fibres in series NOTE All optical losses indicated are referenced to the initial attenuation at the start of the test NOTE An “incoming fibre” is defined as a part of an optical circuit containing the fibre entering the product, spliced to a fibre leaving the product One optical circuit can contain many “incoming fibres” Light will sequentially flow through all “incoming fibres” BS EN 50411-2-10:2015 EN 50411-2-10:2015 8.3 – 16 – Mechanical sealing performance requirements Table – Mechanical sealing performance requirements No Test Vibration (sinusoidal) Cable retention Cable bending Requirement Sealing performance (test 1) Visual appearance (test 3) Sealing performance (test 1) Pressure loss (test 2) Visual appearance (test 3) Tightness Sealing performance (test 1) Pressure loss (test 2) Visual appearance (test 3) Details Method: EN 61300-2-1 Frequency: 10 Hz Amplitude mm Duration: 10 days Test temperature: 23 °C ± °C Test pressure: Internal overpressure 20 kPa ± kPa sealed at test temperature Pre-conditioning procedure: Sample should be conditioned to room temperature for at least h Method: EN 61300-2-4 Test temperatures: -15 °C ± °C and +45 °C ± °C Load: ∅Cable (mm)/45*1 000 N or 000 N maximum Duration: h per cable Test pressure: Internal overpressure 20 kPa ± kPa sealed at test temperature Pre-conditioning procedure: Sample should be conditioned to specified temperature for at least h Method: EN 61300-2-37 Test temperatures: -15 °C ± °C and +45 °C ± °C Bending angle: +30° and -30º (maximum force shall not exceed 500 N) Force application: 400 mm from end of seal Number of cycles: cycles per cable Duration: at each extreme position Test pressure: Internal overpressure 20 kPa ± kPa sealed at test temperature Pre-conditioning procedure: Sample should be conditioned to specified temperature for at least h BS EN 50411-2-10:2015 – 17 – EN 50411-2-10:2015 Table – Mechanical sealing performance requirements (continued) No Test Torsion/Twist 10 11 12 Impact Crush resistance Re-entries Requirement Sealing performance (test 1) Pressure loss (test 2) Visual appearance (test 3) Sealing performance (test 1) Pressure loss (test 2) Visual appearance (test 3) Sealing performance (test 1) Pressure loss (test 2) Visual appearance (test 3) Sealing performance (test 1) Visual appearance (test 3) Details Method: EN 61300-2-5 Test temperatures: -15 °C ± °C and +45 °C ± °C Torque angle: +90° and -90º (maximum torque shall not exceed 50 Nm) Force application: 400 mm from end of seal Number of cycles: cycles per cable Duration: at each extreme position Test pressure: Internal overpressure 20 kPa ± kPa sealed at test temperature Pre-conditioning procedure: Sample should be conditioned to specified temperature for at least h Method: EN 61300-2-12 Method B Test temperatures: -15 °C ± °C and +45 °C ± °C Impact tool: Steel ball of kg Drop height: 1m Impact locations: 0°, 90°, 180° and 270° Number of impacts: per location Test pressure: Internal overpressure 20 kPa ± kPa sealed at test temperature Pre-conditioning procedure: Sample should be conditioned to specified temperature for at least h Method: EN 61300-2-10 Test temperatures: -15 °C ± °C and +45 °C ± °C Load: 000 N Application area: 25 cm Locations: Centre of closure at 0° and 90° around longitudinal axis of closure Duration: 10 Test pressure: Internal overpressure 20 kPa ± kPa sealed at test temperature Pre-conditioning procedure: Sample should be conditioned to specified temperature for at least h Method: EN 61300-2-33 Test temperature: +23 °C ± °C Conditioning between each re-entry: Ageing of minimum temperature cycle as specified in test 13 Number of re-entries: 10 BS EN 50411-2-10:2015 EN 50411-2-10:2015 8.4 – 18 – Environmental sealing performance requirements Table – Environmental sealing performance requirements No 13 14 15 16 17 Test Change of temperature Water immersion Salt mist Resistance to solvents and contaminating fluids Resistance to stress cracking solvents Requirement Sealing performance (test 1) Visual appearance (test 3) No water ingress Visual appearance (test 3) Sealing performance (test 1) Visual appearance (test 3) Sealing performance (test 1) Visual appearance (test 3) Sealing performance (test 1) Visual appearance (test 3) No visible cracking allowed Details Method: EN 61300-2-22 Extreme temperatures: -40 °C ± °C and +65 °C ± °C Dwell time: 4h Rate of change °C/min Number of cycles: 20 Test pressure: Internal overpressure regulated at 20 kPa ± kPa during test Method: EN 61300-2-23, Method Test temperatures: +23 °C ± °C Water column height: m or an equivalent external water pressure of 10 kPa Wetting agent: None Duration: days Test pressure: kPa ± kPa sealed at room temperature Method: EN 61300-2-26 Test temperatures: +35 °C ± °C Salt solution: % NaCl (pH 6,5-7,2) Duration: days Test pressure: Internal overpressure kPa ± kPa sealed at room temperature Method: EN 61300-2-34 Test temperatures: +23 °C ± °C Submersion in: HCl at pH NaOH at pH 12 Petroleum jelly Drying time at 70 °C: None Duration: days Test pressure: Internal overpressure kPa ± kPa sealed at room temperature Method: EN 61300-2-34 Test temperatures: +50 °C ± °C Submersion in: 10 % Nonyl Phenol Ethoxylate solution (Igepal) Drying time at 70 °C: None Duration: days Test pressure: Internal overpressure kPa ± kPa sealed at room temperature BS EN 50411-2-10:2015 – 19 – 8.5 EN 50411-2-10:2015 Mechanical optical performance requirements Table – Mechanical optical performance requirements No 18 19 20 Test Vibration (sinusoidal) Cable bending Torsion/twist Requirement Transient loss (test 5) Visual appearance (test 3) Transient loss (test 5) Visual appearance (test 3) Transient loss (test 5) Visual appearance (test 3) Details Method: EN 61300-2-1 Test temperature: +23 °C ± °C Frequency range: Hz - 500 Hz at octave/min Amplitude / acceleration force: mm below cross-over frequency and 10 m/s maximum above cross-over frequency Cross-over frequency: Hz Number of sweeps 10 sweeps (5-500-5 )Hz Number of axes: mutually perpendicular Optical circuit: 10 live fibres placed in series Method: EN 61300-2-37 Test temperatures: +23 °C ± °C Bending angle: +30° and -30º (maximum force to bend shall not exceed 500 N) Force application: 400 mm from end of seal Number of cycles: cycles per cable Duration: at each extreme position Optical circuit: 10 live fibres in series Method: EN 61300-2-5 Test temperature: +23 °C ± °C Torque angle: +90° and -90º (maximum torque shall not exceed 50 Nm) Force application: 400 mm from end of seal Number of cycles: cycles per cable Duration: at each extreme position Optical circuit: 10 live fibres in series BS EN 50411-2-10:2015 EN 50411-2-10:2015 – 20 – Table – Mechanical optical performance requirements (continued) 21 8.6 Intervention and reconfiguration Transient loss (test 5) Visual appearance (test 3) Operations shall be carried out on fibres in splice trays, installed between other active splice trays (that contain the 10 life fibres) For the distribution joint configuration only Circuit separation (type of organiser system) defined by parameter XX4 in Table Method: EN 61300-2-33 Test temperature: +23 °C ± °C Operations: All manipulations that will normally occur during an intervention after initial installation These are typically: moving closure to working location Handling (torsion, bending and pulling) of cables attached to node; open/close closure; gaining access to previously installed fibres in the organiser system; adding/installing drop cables; breaking splice and connect to other fibre; cutting one or more uncut fibres and splicing them to other fibres; adding splicing trays Optical circuit: 10 live fibres placed in series Environmental optical performance requirements Table – Environmental optical performance requirements No 22 Test Change of temperature Requirement Change in attenuation (test 4) Visual appearance (test 3) Details Method: EN 61300-2-22 Low temperature: -40 °C ± °C High temperature: +65 °C ± °C Duration at temperature extreme: 4h Rate of change of temperature: °C/min Number of cycles: 20 Measurements required: Before, during (max interval 10 min) and after the test Recovery procedure: h at normal ambient conditions BS EN 50411-2-10:2015 – 21 – EN 50411-2-10:2015 Annex A (informative) Fibre for test sample details Table A.1 – Fibre references EN 60793-2-50, Type B1.1 Fibre type: Dispersion unshifted single mode fibre Proof stress strain: ≥1% Mode field diameter at 310 nm: 9,3 µm ± 0,7 µm Mode field diameter at 550 nm: 10,5 µm ± 1,0 µm Cabled fibre cut off wavelength: ≤ 260 nm 550 nm loss performance: < 0,5 dB for 100 turns on 60 mm mandrel diameter Cladding diameter: 125 µm ± µm Non coloured primary coating diameter: 245 µm ± 10 µm Coloured primary coating diameter: 250 µm ± 15 µm Table A.2 – Fibre references EN 60793-2-50, Type B6_a1 Fibre type: Low bend loss single mode fibre Proof stress strain: ≥1% Mode field diameter at 310 nm: Between 8,2 µm and 9,8 µm Cabled fibre cut off wavelength: ≤ 260 nm 625 nm bend loss performance: < dB for 10 turns on 30 mm mandrel diameter < 1,5 dB for turn on 20 mm mandrel diameter Cladding diameter: 125,0 µm ± 0,7 µm Non coloured primary coating diameter: 245 µm ± 10 µm Coloured primary coating diameter: 250 µm ± 15 µm BS EN 50411-2-10:2015 EN 50411-2-10:2015 – 22 – Annex B (informative) Sample size and product sourcing requirements Table B.1 – Minimum sample size requirements No NA Test Dimensional Sample size Sealing performance Optical NA Sealing performance Criterion NA Pressure loss during test Criterion NA Visual appearance Criterion Criterion Change in attenuation NA Criterion Transient loss NA Criterion Vibration (sinusoidal) NA Cable retention NA Cable bending NA Torsion/Twist NA 10 Impact NA 11 Crush resistance NA 12 Re-entries NA 13 Change of temperature NA 14 Water immersion NA 15 Salt mist NA 16 Resistance to solvents and fluids NA 17 Resistance to stress cracking solvents NA 18 Vibration (sinusoidal) (optical) NA 19 Cable bending (optical) NA 20 Torsion/Twist (optical) NA 21 Intervention and reconfiguration (optical) NA 22 Change of temperature (optical) NA NA = Not Applicable Tests to are performance criteria tests that need to be performed during and after other mechanical or environmental tests (6 to 22) This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI 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