Tight Buffer Cable Supplement
Contents
1. Although not recommended it can also be done with a knife or a cutter if this is the only option available Carefully score the jacket all around with the knife not too deeply to avoid damaging the fibres and bend the jacket away from score If the cut is located less than 50cm to the end of the cable the cut part of the jacket can be slid off Tight Buffer Outer jacket stripping tool The Nexans recommended tool adapted to TB cable structure is designed to cut the jacket longitudinally and around as shown here below OGCL stripping tool NCS part number N890 131 January 2014 Doc N Tight Buffer cable supplement VO 1 doc Nexans Cabling Solutions 2014 Page 8 14 JVexans 4 1 Cable Jacket removal process We recommend removing lengths of maximum 500 mm Repeat the process for longer lengths For a complete and detailed description of the process please refer to the OGCL tool user manual 1 Adjust the blade of the tool according to the thickness of the cable sheath Mark 2 for TB cables We recommend first testing the tool setting on a spare piece of cable 2 Set the tool in longitudinal cutting mode using D pull turn January 2014 Doc N Tight Buffer cable supplement VO 1 doc Nexans Cabling Solutions 2014 Page 9 14 J fexans 3 Cut the jacket longitudinally using the part of the tool dedicated to this operation Note the blade first has to be set into the right position to adjust the penetrati2. Biblioteca Sp TRAINING amp PROJECT SUPPORT CABLE THE FUTURE MAGAZINE gt Bibliothek De Training Join the mailing list J Software Design Tools Download previous editions F Li b ra ry WARRANTIES INSTALLER TOOLS You will find all documentation in this section brochures Different warranty options free to contact us if you don t find the right information Certified Solution Warranty gt gt Link Warranty gt gt Flood Policy Labelling Systems Cable Storage amp Handling Become a Partner SEARCH ENGINE DIRECTORY Y Installation amp Design Guidelines Product Installation Sheets January 2014 Doc N Tight Buffer cable supplement VO 1 doc Nexans Cabling Solutions 2014 Page 2 14 J fexans 2 Product references The rules described in the following chapters are applicable to the following NCS OF cable ranges LANmark OF Tight Buffer Indoor N16x TBINxx 1 Outer sheath in LSZH material 2 Aramid Yarns 3 Optical fibre 900 um 4 Central Strength element nat for 2 fibres LSZH outer sheath with UV resistant additive Watertight glass yarns Optical fibres 800 um Central strength element January 2014 Doc N Tight Buffer cable supplement 1 doc Nexans Cabling Solutions 2014 Page 3 14 JMexans 3 Tight Buffer OF cable pulling recommendations Important note In any fibre optic cable the load has be applied to the stre
3. Installation Guide OPTICAL FIBRE CABLE TIGHT BUFFER TB CABLE SUPPLEMENT January 2014 JMexans JMexans Nexans Cabling Solutions INSTALLATION GUIDE FOR OPTICAL FIBRE CABLE TIGHT BUFFER TB CABLE SUPPLEMENT Table of Contents l 2 2 Producte Ten oS IT 3 3 Tight Buffer OF cable pulling 5 4 3 1 About Internediate PULING RR 5 4 olo SN oj Ro 8 4 1 Cable Jacket removal ProceSs ccccccssccsssccsssccessecessecessecesecesecesecessecessecessecessecesseceessecesseeeseeeens 9 402 mau radere E A EP o UR I esie NE ID ENSE 12 5 Fibre identificalo 13 January 2014 Doc N Tight Buffer cable supplement VO 1 doc Nexans Cabling Solutions 2014 Page 1 14 JMexans Important Note Installation is to be performed by qualified service personnel 1 Foreword This document forms part of a series of documents related to optical fibre installation Please see below for further information This document provides specific information related to Tight Buffer TB fibre cables The General Installation Guide For Optical Fibre Cable document provides information related to key topics that need to be followed during installation The following guides provide more detailed information on handling requirements for specific cable types e Tight Buffer Cable Supplement this document
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5. e pulling force be applied directly onto the jacket of the cables as explained in the important note located at the beainnina of this chapter As a consequence we do not recommend using TB cable to create outdoor backbone links requiring several pulls to reach the full length of the path in one direction The use of TB cable shall be limited to medium runs having just one intermediate maintenance hole For pulling in stages the following configuration is not recommended for Tight Buffer cable because of the force needed to be applied on the cable jacket at the intermediate stage gt gt Configuration not recommended using Tight Buffer cables The following method is however recommended When the pull in the first direction is completed the remaining required cable shall be reeled off the drum and then placed on the ground in a figure of 8 pattern Note Be sure to minimize the load on the cable by rotating the drum rather than just pulling on the cable itself and at all times respect the minimum bending radius of the cable The end of the cable will be on the top of the figure of 8 so the cable roll must not be flipped over January 2014 Doc N Tight Buffer cable supplement VO 1 doc Nexans Cabling Solutions 2014 Page 6 14 JMexans The other end of the cable should then be pulled through the duct using the procedure described for the first end It is not recommended to
6. ional and local procedures and safety standards must be observed and followed at all times Nexans Cabling Systems will not be held liable for any damage or injury to personnel equipment or business directly or indirectly as a result of using this document in part or in whole The practices contained herein are designed as a guide for use by persons having the required technical skill at their own discretion and risk The recommended practices are based on average conditions Nexans does not guarantee any favourable results or assume any liability in connection with this document Nexans does not assume any responsibility for the accuracy or completeness of this document The user should review the information to ensure conformity to the current applicable codes and regulations and to the project requirements Nexans reserves the right to change the technical specifications at any time without notice Edition 08 01 2014 Copyright Nexans 2014 All data subject to change without prior notice January 2014 Doc N Tight Buffer cable supplement VO 1 doc Nexans Cabling Solutions 2014 Page 14 14 2014 Nexans Cabling Solutions All rights reserved LANmark LANsense GG45 are registered trademarks of Nexans JMexans www nexans com LANsystems info ncs nexans com Nexans Cabling Solutions Belgium Nexans Cabling Solutions UK Nexans Cabling Solutions France Alsembergsesteenweg 2 b3 and Intelligent Enterprise Solutions 4 10 rue Moz
7. lay the cable directly on the ground A protection layer should be installed to protect the cable as shown on the picture Note When pulling cables through intermediate maintenance holes a continuous pull method is sometimes used with workers pulling the cable at different locations at the same time This method cannot be applied to Tiaht Buffer cable Continuous pull method Pulling directly on the outer jacket with an excessive force will cause a compression of the fibre and create significant loss increase This process can only be applied if the force to be applied on the cable by the hands of the workers does not cause any deformation of the outer jacket That is the reason why the process is not applicable when installing TB cable structures January 2014 Doc N Tight Buffer cable supplement VO 1 doc Nexans Cabling Solutions 2014 Page 7 14 S exans 4 Cable stripping For any fibre count or cable type some of the cable outer jacket will have to be removed to expose the fibres for the termination process Outside plant cables that will be terminated in trays may need 2m of jacket to be removed Recommended lengths are provided in the Nexans patch panel installation guides available from our website Tight Buffer cable jackets can be removed using round cable slitters or other tools that will not damage the interior of the core Nexans recommends the use of tools designed specifically for the purpose
8. loose Tube Cable Supplement Micro Bundle Cable Supplement e Pre Terminated Cable Supplement In addition there is also a General Installation guide for both copper and fibre which includes further information Please note The Nexans warranty may be invalidated if the cables have not been properly stored or handled according to Nexans Cabling Solutions NCS requirements When logged into the NCS site all these documents and also others relating to design and installation testing etc can be found here v LANsystems Library t Library Technical contents 13 June 2013 Information 46 kB Become a Partner Software BUILDING RA ow A Y LAN SYSTEMS Magazines amp News support amp Documentation Products basy d Support 4 mre Documentation a 4 Case Studies 1 lt Warranty Cable the Future Business i LANsystems Library Environment Click here to access the documentation 5 Brochures amp Catalogues gt gt Y Technical Literature Press cuttings White papers gt Test procedures Installation amp Design Guidelines Tender Books Partners Multimedia m me SUCCESS STORIES PRODUCT INFORMATION obal Activities gt Presentations LAN Systems News gt Examples of previous projects gt ForDATA SHEETS see PRODUCTS Warranty gt LAN Catalogue Nov 2012 pdf Archive Documentation en Fran ais
9. ngth members of the cable central strength element and glass aramid yarns Failure to lock the cable components toaether can lead to elonaation of the jacket material which will cause irreparable damage to the fibres resulting in significant performance degradation Remove approximately 200mm of the jacket and cut the internal elements as shown in the picture To ensure that the pulling force will be applied on the whole cable structure wrap the cable end with a strong adhesive tape to lock all the cable components together January 2014 Doc N Tight Buffer cable supplement VO 1 doc Nexans Cabling Solutions 2014 Page 4 14 JMexans Fix the cable to the pulling rope tape using a specially designed pulling grip for optical fibre cable length of 600mm minimum to ensure that the pulling tension is well distributed on all cable components outer sheath and reinforcing elements Before termination approximately 3m of cable should be cut off to remove any piece that may have suffered stress from the pulling tape or grip 3 1 About Intermediate Pulling In many installations the distance to be covered is short and the path is straight enough to allow the cable to be easily pulled with a pulling grip correctly installed onto the cable end without the need for intermediate pulling However on longer runs it may be necessary to pull the cable at intermediate points if the pulling force to be applied on the cable t
10. o pull it in one go through the duct would exceed the max pulling force allowed by the manufacturer Important note about Tight Buffer TB cable structure NEVER grab the outer sheath jacket of a TB cable when trying to pull cable out of a duct If a cable is grabbed by hand the point pressure that is applied in this manner may cause the outer sheath to be elongated as well as causing the fibres to be stretched When the cable is then released the optical fibres will then pull back and bunch up within the cable structure which will cause irreparable damage to the fibres resulting in significant performance degradation It is therefore imperative that the pulling load be applied to the strength members of the cable For long runs the pulling operation must be accomplished in two or more stages The pulling can be started at the middle of the run where a maintenance hole is located The cable pulling will then be undertaken in both directions January 2014 Doc N Tight Buffer cable supplement VO 1 doc Nexans Cabling Solutions 2014 Page 5 14 JMexans The cable is first pulled through the duct in one direction directly from the reel Attention when the end of a TB cable is coming out of the duct at the pull end the operators have to continue to pull the necessary lenath of cable out of the maintenance hole by applying the force to the pulling whatever the length of the cable to be pulled out In no circumstances should th
11. on into the jacket and then locked using E January 2014 Doc N Tight Buffer cable supplement 1 doc Nexans Cabling Solutions 2014 Page 10 14 J fexans 5 Install the tool on the cable with the blade located at the end of the longitudinal cut and rotate the tool around the cable to cut the jacket 6 Remove the jacket Note for the removal of short length of jacket the longitudinal cut is not necessary January 2014 Doc N Tight Buffer cable supplement 1 doc Nexans Cabling Solutions 2014 Page 11 14 S fexans 7 Cut the central strength element and use the appropriate scissors to remove aramid or glass yarns 4 2 Fibre termination In Tight Buffer tube cable structures the fibres are protected by a 900 coating Both direct termination with anaerobic field installable connectors and splicing of pigtails can be performed onto 900 coated fibres January 2014 Doc N Tight Buffer cable supplement 1 doc Nexans Cabling Solutions 2014 Page 12 14 JMexans 5 Fibre identification January 2014 1 Bee 2 4 Bom 5 6 Wie J 9 o Pink 12 Turquoise 14 15 l Brown Grey 1 ring Blue 2 rings Brown 2 rings Grey 2 rings it 24 White 2 ring Doc N Tight Buffer cable supplement 1 doc Nexans Cabling Solutions 2014 Page 13 14 JMexans Disclaimer This document is a guideline only Internat
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