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I N N O V A T I O N A N D F L E X I B I L I T Y

“This document is intended as a guide only. Whilst the information it contains is believed to be correct, Emtelle can take no responsibility for actions taken based on the information contained in this document. Emtelle reserves the

right to make changes to this document without notice. All sales of product are subject to Emtelle’s terms and conditions of sale only, which can be found on Emtelle’s website.”

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I N N O V A T I O N I S O U R T R A D I T I O N

D E S I G N E D F O R F L E X I B I L I T Y

T H E

I N S T A L L A T I O N A N D M A I N T E N A N C E T R A I N I N G M A N U A L

I N N O V A T I O N A N D F L E X I B I L I T Y

Issue 7: June 2009

The

Installation

And Maintenance Training Manual

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Содержание FIBREFLOW

Страница 1: ...s the right to make changes to this document without notice All sales of product are subject to Emtelle s terms and conditions of sale only which can be found on Emtelle s website 1 I N N O V AT I O N...

Страница 2: ...formation it contains is believed to be correct Emtelle can take no responsibility for actions taken based on the information contained in this document Emtelle reserves the right to make changes to t...

Страница 3: ...suresAndTheir Selection 45 6 1 Introduction to Closures for Blown Fibre Installations 45 6 2 Selection charts to help define the correct closure for each application 46 6 3 ClosureAssembly General Ins...

Страница 4: ...107 10 1Blowing Head 107 10 2The Coiler 111 11 Repair Procedures 113 11 1 Repairs to DB Bundles 113 11 2 Repair Procedure for 1 DB Joint code 7787 117 Appendix Product Code IdentificationTable 118 Te...

Страница 5: ...document without notice All sales of product are subject to Emtelle s terms and conditions of sale only which can be found on Emtelle s website 5 I N N O V A T I O N A N D F L E X I B I L I T Y Instal...

Страница 6: ...ored under T Services andTraining I M I M Issue 6 Document Owner Company Details Emtelle UK Limited Haughhead Hawick Scotland TD9 8LF Tel 44 0 1450 364 000 Fax 44 0 1450 364 001 www emtelle com This d...

Страница 7: ...ion can also be found On Notice Boards throughout the factory Around Buildings Safety signs notices etc InstallationTechnicians and Engineers are reminded that they must obey general as well as specia...

Страница 8: ...pieces of fibre Do not leave them on the floor or place them into a waste paper bin Using knife blades to cut cable insulations is hazardous Use tools illustrated Take care when using heat to seal hea...

Страница 9: ...e lid you lift is normal air as in the street Many underground gases can seep into chambers and pits and make the air unbreathable or even explosive Hazards Physical matters as previously discussed Wa...

Страница 10: ...he manhole chamber is shallow street at chest height or lower when stood inside then leaving the lid off for 20 minutes should disperse all gases present Deep mostly dry manholes especially when great...

Страница 11: ...Unit Traditional fibre optic cables contain strength members to protect the delicate glass fibre from installation tensions Glass breaks at only 2 5 elongation so traditional optical cables contain st...

Страница 12: ...tandard microducts and the larger microducts Other sheathing systems are Low Fire Hazard Reinforced LFR Direct Bury Reinforced DBR Direct BuryTermite Resistant DBT Direct Bury ReinforcedTermite Resist...

Страница 13: ...es can be accommodated as above d A simple method to bury bundles of m d for FU blowing or mini cable blowing The DB bundle Emtelle provide all these solutions but the SIZE of the optical element usua...

Страница 14: ...ks and Safety Section at the start of this manual 3 5 Drum and Coil Handling Drums Drums with full battens can be stored on top of each other on a level stable surface Drum or pallet stacks should not...

Страница 15: ...t Remove any battens only when ready to install Do not lie the drum flat and pull coils off as these corkscrew twists will not pull out the microduct product will not lie flat and this will cause inst...

Страница 16: ...elp prevent environmental hazards including freezing water crushing rocky soil ground disruption from rodents or construction work Trench width is normally no less than 10 inches 0 25m Trenches should...

Страница 17: ...s and to minimise problems which may arise due to water contamination there are important things to do Do not cut or break into m d assembly cables at these places until it is necessary At the time to...

Страница 18: ...etch end cap is available This procedure is strongly recommended by Emtelle when using the system to inhibit water penetration into the tube bundles The product can be used in manholes hand holes and...

Страница 19: ...ge tin 5 Push the cap as far as possible onto the m d bundle 8 DisposeofGlovesandemptytinsin accordancewithlocalauthorityregulations 3 Shake the tin of resin up and down for 1minute 6 Begin to roll th...

Страница 20: ...end to ensure regular shrinking and melting of the inner hot melt adhesive When fully cool check the cap does not pull off otherwise re clean check cap sizes and repeat Under no circumstance should th...

Страница 21: ...oducts in locations for example inside a building where there is the danger of attack from rodents then the tube bundles should be provided with suitable protection In these circumstances it is recomm...

Страница 22: ...turer s declaration Proper installation is critical for a trouble free direct bury project An example of a UK practice that has been found to be effective is shown on page 28 3 8 Direct Installation B...

Страница 23: ...wance assumes some reduction of the ID due to bends and distortion Empty duct The available space R E g a 50 40 6 empty duct could be said to have 37mm available space 40 6 x 0 92 One Cable already in...

Страница 24: ...eat increase in pull tension Ensure that cable feeding off a drum is assisted so back tension is minimised Positive feed is even better The 1W figure One W A rule of thumb for the maximum pulling tens...

Страница 25: ...he outer sheath and this increases the tensile strength All of the DB pulling loads can typically be doubled for DBR reinforced DB products See individual data sheets We also advocate the use of pulli...

Страница 26: ...the subduct wall increases the friction considerably Lubricants keep such friction to manageable levels 2 The choice of lubricant depends on both the microduct and cable Consult Emtelle for selection...

Страница 27: ...ion This document is intended as a guide only Whilst the information it contains is believed to be correct Emtelle can take no responsibility for actions taken based on the information contained in th...

Страница 28: ...e installed these should be placed in separate layers with the spacing in accordance with advice below Separation of Conduits Once all the conduits in the bottom layer have been laid and properly alig...

Страница 29: ...th backfilling can proceed in accordance with NRSWA Spec Additional Precautions and Installation Procedures for Duct Systems General The requirements detailed in the Draft BSI Code of Practice for the...

Страница 30: ...running water during backfill Joining Conduits Duct Pipe The spigot of the conduit and the internal area of the socket must both be free of dirt soil and any other form of contamination The spigot en...

Страница 31: ...ite 6 4 White 7 5 White 8 2 Red 9 2 Green 10 1 Yellow 11 2 Yellow 12 3 Yellow 13 4 Yellow 14 5 Yellow 15 1 Blue 16 2 Blue 17 3 Blue 18 4 Blue 19 5 Blue Order M d Number Colour 1 1 Red 2 1 Green 3 1 Wh...

Страница 32: ...a gravel filled bitumen layer After four minutes the first bitumen should be setting well and the next layer is applied leaving just 10 to 15mm of slot to fill Four minutes later the third final layer...

Страница 33: ...excess bitumen spills after installation Advantages of Slot Cutting It is extremely fast to deploy up to 5 times faster than traditional ducted methods It is substantially lower cost generally less t...

Страница 34: ...A I N T E N A N C E T R A I N I N G M A N U A L Recommended Slot widths for specific Direct Buried Products all 5 3 5mm 3 11 Mole Ploughing This technique ploughs in sub duct or a protected microduct...

Страница 35: ...and smoother and fewer curves make easier blowing Curves of radius 1 metre are generally ideal for blowing fibre unit and the natural stiffness of DB products helps installers remember this Remember...

Страница 36: ...tal free or LFH products wait 24 hours before securing cutting 3 After pulling any glass containing products e g DBR and other products containing e glass wait 12 hours before securing cutting There a...

Страница 37: ...ally via a Customer Lead In CLI box 5 The hole drilled through the wall is usually lined with subduct to protect the m ds 6 Once inside the building the m ds should transition to internal LFH rated m...

Страница 38: ...p at the building entry Emtelle code 7221 or 6093 This prevents gas entering the building via m ds 3 Microducts which are to be populated within 24hours of installation should be sealed at the buildin...

Страница 39: ...When blowing in a high building always try to blow down the building which will give a higher blowing performance In order to guarantee a smooth bend radius when installing LFH primary m d corner card...

Страница 40: ...a guide only Whilst the information it contains is believed to be correct Emtelle can take no responsibility for actions taken based on the information contained in this document Emtelle reserves the...

Страница 41: ...lbox 11 Code 7299 Primary Tube Rotational Cutter 2 Code 9343 Sheath Stripper 4 5 26mm 12 Code 9346 42 mm Heavy Duty Cutter 3 Code 7710 Sheath Stripper 19 40mm 13 Code 9345 Screwdriver Pack 4 Code 7794...

Страница 42: ...5 Using a flat screwdriver get underneath the polyethylene outer sheath and force it up At this point it should be possible to force open the ringlet and the polyethylene is forced to break Once the...

Страница 43: ...sheath to one of the outer ring cut locations Repeat the process in the opposite direction 9 Using the rotary stripper ring cut the inner sheath at locations indicated in step 1 12 The inner sheath ca...

Страница 44: ...ripping tool product 7794 1 Insert the 1DB into the strip ping tool The end of the sheath should sit level with the large end of the tool as shown Close the grip 2 Rotate the tool clockwise and anti c...

Страница 45: ...ng water water sprayed at an angle up to 60 each side of vertical shall have no harmful effects protected against solid foreign objects of 1 0mm and greater The object probe sphere of diameter 1 0mm s...

Страница 46: ...Point CCP 9358 In Building 3A 7247 FTTx Metro 68 Customer Lead In Point CLIP 7500 FTTx 55 Direct Bury Joint Kit DBJ 7719 FTTx Repair 68 Direct Bury Joint Kit DBJ 7720 FTTx Repair 68 H Closure tba FTT...

Страница 47: ...a 24way 5mmLFH tube bundle Can branch off up to 6 single LFH primary tubes H Branch can be Direct Buried into a waiting trench or placed inside a manhole or handhole It accepts a DB bundle in and all...

Страница 48: ...B each 4 ports out 40mm maximum 7 DB each 4 ports out 40mm maximum 5 DB each Customer Lead In Point CLIP 7500 1x1 DB 3 5 1x primary 1x primary Direct Bury Joint Kit DBJ 7719 1x2 DB 5 2x1 DB Direct Bur...

Страница 49: ...erly makeclean90 cuts usethem droundingtool andthecolletlockingtool Cap offanyunusedm dstokeepwaterout 6 Anchoring Some closures have provision to anchor cables or m d to minimise tension on core elem...

Страница 50: ...contained within it This external lead in closure code 7412 can be used as a stand alone unit or it can be combined with an internal version product code 7119 which will allow the microduct and fibre...

Страница 51: ...ibre management Tray hinging provides easy access for installation Tube storage space improves tolerance in microduct m d microduct prep Strong single piece moulding Pre installed tubing connectors re...

Страница 52: ...ed components optimise installation Template simplifies cable prep installation mounting Common cable fixing for BF cable Optimised dimensions Cable entry from all sides g 7121 7124 7414 6 Closures An...

Страница 53: ...their nature are bulky In these situations we use one of two internal m d flexibility point closures The three way closure has the advantage of being padlocked should security be an issue but the clo...

Страница 54: ...ng Procedure 6 6 Demarcation methods for microduct assemblies In order to provide m d management and easy access to the m ds for fibre installation there should be a demarcation point for the micro du...

Страница 55: ...NOTE 19 inch Rack Mount m d guide 7362 not shown 19 inch Rack Mount m d Patch panel for bulkhead connectors 7361 When microducts as either an individual assembly or as individual microducts need to b...

Страница 56: ...f m d of the same outer diameter eg 5mm to 5mm This document is intended as a guide only Whilst the information it contains is believed to be correct Emtelle can take no responsibility for actions tak...

Страница 57: ...the connector and rotate the yellow section to lock the m d to the cap NOTE 8mm Superseal end cap is product code 6088 6093 This document is intended as a guide only Whilst the information it contains...

Страница 58: ...then push the microduct firmly into the connector The resulting joint is solid and does not have to be pulled to attain full grip The same tool can also be used to assist in removing a connector pres...

Страница 59: ...nt is intended as a guide only Whilst the information it contains is believed to be correct Emtelle can take no responsibility for actions taken based on the information contained in this document Emt...

Страница 60: ...h a seal that permits both blowing through of mini cable and also sealing down onto the same 3 Some GBs have an extra locking ring which is used to lock the microduct In such cases fit the connector s...

Страница 61: ...k adaptor 3 Push the connector onto the 8mm m d until fully inserted 4 Now fit the waterblock connector over the fibre unit and push into place onto the stem part of the waterblock adaptor 5 A piece o...

Страница 62: ...onnector 3mm 9925 When a 3mm FTTH solution is required a special rugged drop m d gives the added durability for the last drop to the home Blowing theory dictates that it is difficult to blow from one...

Страница 63: ...rotating the yellow end knobs This operation cannot be performed with a straight connector since some space is needed to manipulate the fibre without damaging it Using a one piece closedown sleeve acc...

Страница 64: ...fibre bundle M ds can then simply be plugged into the bulkhead from either side Refer to Demarcation methods in this manual 7 Connectors This document is intended as a guide only Whilst the informati...

Страница 65: ...lle Fibre Units FU Emtelle manufacture high quality 8 125 m 50 125 m and 62 5 125 m fibre units Their make up is shown below The coloured optical fibres are encased in a thin easy to remove acrylate r...

Страница 66: ...B km change compared to start value 1550 nm Damp Heat Cycle IEC 60068 2 38 10 cycles 25 C 65 C 25 C 65 C 25 C 10 C 25 C Absolute attenuation during test to be 0 5dB km 1550nm and 1310nm 0 1dB km chang...

Страница 67: ...down onto the FU core and be difficult to remove Take care not to cut too deep as this will damage the fibre Once the outer sheath has been removed the resin layer must now be stripped away Taking the...

Страница 68: ...void sliding your closed fingers along the fibre s The result is that all fibres are free from resin and ready for termination No solvent cleaning is required as there is no gel The picture opposite s...

Страница 69: ...material their colours are green and white There are two types of tyre smooth and grooved The grooved tyres are available in green only The part numbers for the tyres are as follows Smooth white 7576...

Страница 70: ...s Match the Fibre Bead to the Fibre Unit Two bead types exist and must match the fibre unit being used The beads can be identified simply by colour 4 Fibre bead Part number 7318 Used for Emtelle 2 and...

Страница 71: ...t is reversed the fibre will try to push back to where it was and fail due to its high tendency to buckle Fibre will push right off the tray and cause pressures and microbend problems etc Thistray sho...

Страница 72: ...the acrylate fibre bundle Failure to do this will be detrimental in terms of water blocking and restraining force Practical exercise Lock Block Procedure You will be guided through the sequence of FU...

Страница 73: ...FU to move rather than forcing it by tension So if we got hold of the FU at the back end it would stop moving and suffer no ill effect Note also that in the plug example ALL the air behind the plug w...

Страница 74: ...bends are located at or near the far end of the route the 2nd half of the route 9 3 Performance How Far Will it Blow One indication of a m d length that is too long for the tube air combination is wh...

Страница 75: ...idea is to take a straight length of spare m d maybe 20 or 30m or more and add it to the route at A This will delay and reduce the impact of the bends You may have to slow down at the bends in any ca...

Страница 76: ...only pushed will buckle and stop at the pushing limit point X It never reaches the good 2nd portion of the route where the pressure drop is very good Far End Changes 3 m d increases near the end As wi...

Страница 77: ...031 Air Preparation Kit 7832 10 Bar Petrol Compressor 24Vdc 7028 10 Bar Electric Compressor 24Vdc 7757 Kaeser 15 Bar Petrol Compressor 9642 9 Fibre blowing This document is intended as a guide only Wh...

Страница 78: ...this delivery air were allowed to enter the m d at this temperature since it is saturated and the m d usually cooler condensation would occur For this reason an aftercooler is normally fitted in the...

Страница 79: ...erator for powering a blowing unit and an air preparation kit The air preparation kit is needed to treat the hot and wet air coming from the compressor A 10m hose is included with this system and its...

Страница 80: ...ccurs in the ambient temperature range 10 C to 60 C with the m d at a similar temperature to the air Blowing outside of these limits or with a substantial temperature difference between m d and air is...

Страница 81: ...to guarantee nx100m blow 9 11 Microduct Calibration Testing Tools Required Emtelle approvedAir Compressor Dispenser Airflow Meter kit 8 5mm Reducers 5mm m d End Cap CorrespondingAir Flow Chart for Pri...

Страница 82: ...FOREcarryingout thePressure Continuitytest If theflowisnotcorrect refertothe faultfindingflowchart 3 Connect theAir Flow Meter to the corresponding microduct at the other end of the route 6 Checkifthe...

Страница 83: ...ed to be correct Emtelle can take no responsibility for actions taken based on the information contained in this document Emtelle reserves the right to make changes to this document without notice All...

Страница 84: ...finding flow chart 9 Dump the pressurised air from the m d side by turning the black lever to the dump position Now take off the end cap from the far end 10 Switchoffthecompressorand turntheredandblac...

Страница 85: ...ed to be correct Emtelle can take no responsibility for actions taken based on the information contained in this document Emtelle reserves the right to make changes to this document without notice All...

Страница 86: ...g the hose to microduct coupling found in the kit 820B 4 Connect the air filter from the kit 820B onto the corresponding microduct at the other end of the route 5 Connect air compressor to Dispenser a...

Страница 87: ...t the fibre bead cannot pass through Blow the fibre back out of the microduct by following the directions at the bottom of the page REMEDY If there is damage to the microduct in the route somewhere th...

Страница 88: ...ned in this document Emtelle reserves the right to make changes to this document without notice All sales of product are subject to Emtelle s terms and conditions of sale only which can be found on Em...

Страница 89: ...nts The process and apparatus have been licensed by BT to Emtelle Ltd and several of the drawings and photographs in this document are reproduced with BT s kind permission 9 12 1 Blowing system Set Up...

Страница 90: ...ns of sale only which can be found on Emtelle s website 90 I N N O V A T I O N A N D F L E X I B I L I T Y T H E I N S TA L L AT I O N A N D M A I N T E N A N C E T R A I N I N G M A N U A L 9 Fibre b...

Страница 91: ...V A T I O N A N D F L E X I B I L I T Y T H E I N S TA L L AT I O N A N D M A I N T E N A N C E T R A I N I N G M A N U A L 9 Fibre blowing Blowing Unit 2A Blowing Head The blowing head feeds the fibr...

Страница 92: ...m d Please refer to the section in this manual that deals with the correct selection of these plates for a particular installation Push the fibre unit into the m d and lay it into the central groove...

Страница 93: ...e condition is cleared and the fibre unit returns to the green state the motor re starts If the condition is not cleared then turn the air off then on i e pulse the air If this fails then investigate...

Страница 94: ...9 Fibre blowing Blowing Unit 2004 9 12 2 The 15 Bar Dispenser 7855 The dispenser is a two part product used in fibre unit blowing operations The main upright section holds the regulator and pressure...

Страница 95: ...N N O V A T I O N A N D F L E X I B I L I T Y T H E I N S TA L L AT I O N A N D M A I N T E N A N C E T R A I N I N G M A N U A L 9 Fibre blowing 9 12 3 Flow meter Kit 7778 The flow meter kit contain...

Страница 96: ...moving pattern sits inside the pan s 330mm inner diameter It consists of a central body housing the motor an output shaft emerging at the top and then a removable multi geared head that feeds the fib...

Страница 97: ...ocument Emtelle reserves the right to make changes to this document without notice All sales of product are subject to Emtelle s terms and conditions of sale only which can be found on Emtelle s websi...

Страница 98: ...be used when coiling into a large deep fibre pan Emtelle recommend the use of a Coiler Fibre Guide product code 7789 when coiling into this size of pan Equipment Required 2 5mmAllen Key Sequence of O...

Страница 99: ...off tension Position the fibre pan behind the blow head at one end of the m d length Try to blow from the straight end to the end with bends Feed the fibre unit through the blow head Set up the air s...

Страница 100: ...n onto the base of this pan before coiling begins since it will be needed for the second blowing operation After blowing the initial length the equipment is moved to the second chamber location where...

Страница 101: ...w point and blow in two directions both from the centre This takes less blowing time than the onward blow method and does not require a coiler Planning 1 The main precaution here is to plan ahead what...

Страница 102: ...laced on the primary m d prior to blowing both for the onward blowing and centre blowing operations 2 Before commencing any centre blowing activities ensure that all closures in the route are suitable...

Страница 103: ...g downwards The fibre should always be free and never be pinched on the rim of the bottom pan 3b The second person must then position the top pan on the pins so as not to damage the fibre and then act...

Страница 104: ...ssary to speed up or slow down the blowing head To carry out this installation procedure two operators need radio contact This procedure needs to be co ordinated Once both heads are running the speed...

Страница 105: ...tightened Remove air pressure before tightening Faulty blowing head seal used or m d has no PTFE tape Replace seal or secure PTFE tape to the primary m d 4 Air Ok at the blowing head but little or non...

Страница 106: ...3 The Coiler NOTE the coiler does not have a speed control It has a clutch whose tension is pre set to be less than the grip of the fibre in the wheel groove So if the fibre stops the coiler will sto...

Страница 107: ...eze to get them damp Push a sponge into the m d using a small screwdriver or similar tool The procedure to follow is identical to that of the continuity test with the pressure regulator set to no more...

Страница 108: ...these lenses will impair the operation of the unit If the red or green lights are lit permanently it may be due to contamination in the buckle detector area This is the cleaning procedure Take care wh...

Страница 109: ...I N G M A N U A L Replacing the Air Seal The air seal is the white silicone rubber insert enclosing and retaining the inlet air pressure This item does not suffer rapid wear and would normally require...

Страница 110: ...ead shut and try gently pulling the fibre If the fibre will not move then the plates are not correctly aligned and re fitting is necessary A length of the correct size of fibre or an appropriately siz...

Страница 111: ...he ring spanner Replace the protective cover Open and shut the blowing head with and without fibre bundle to ensure correct operation 10 2 The Coiler Feed wheel change and guide plate align When fitti...

Страница 112: ...7231 From time to time this will need to be done as the fibre cuts a groove in the rubber sleeves which in turn can cause the fibre to slip on the plastic wheels causing coiling problems To enable yo...

Страница 113: ...pulated with fibre Any damage to the fibre would result in the damaged fibre being replaced and not repaired spliced Please note that these procedures apply to directly buried products only The closur...

Страница 114: ...e inspected for damage 10 Placeasectionofoutersheathingoverthe innertomarkforcutting 13 Radiallycuttheinnersheathatthe markings 8 Placethebladeofthelongitudinalcutterintothe gapandcutbothsidesoftheout...

Страница 115: ...perstrips willbeplaced 22 Ifagripperstripexceeds25units one strip connecttwotogether 25 Wrapthegripperstriparoundtheinner sheath betweenthemarkings 28 Wrap the sealing strip between the gripper strips...

Страница 116: ...it connector onto both ends of the cut micro duct 34 Cut the added micro duct at the mark and attach to the connector creating a continuous m d again Repeat for all micro duct 37 Shut the closure ensu...

Страница 117: ...hs and gain access to micro duct See page 41 Tape measure Assembly Instructions NOTE The primary microduct used in FTTH applications is 5 2 1mm 7823 Product code Central Body OD ID mm No of heat shrin...

Страница 118: ...y m d cutter 7014 Blowing Unit 2A 7016 Fibre Inversion Pan 2A 7017 Head Extension Kit 713A 7018 10 Bar ElecComp Plug Type 7019 10bar petrol compressor 7028 Compressor 10 Bar 110V 7029 Generator 7031 S...

Страница 119: ...m m d 7332 Fibre unit stripper 7335 19 inch rack 24 port entry 7361 19 inch rack m d guide 7362 Heat shrink end cap 22 57 7480 12fu plates 5 8mmtube 7481 10mm Gas Block Connector 7488 12fu plates 3 6m...

Страница 120: ...box 51 7298 hacksaw 41 7299 cutter rotary 41 7300 brush 41 7301 pliers 41 7314 waterblock connector 61 7318 FU blowing bead 70 7332 blowing pack 70 7362 m d guide 55 7414 splice box 51 7488 gas block...

Страница 121: ...m d size 76 civils 10 clamp ring inversion 102 CLI customer lead in installing 50 closedowns general 63 closure assembly instructions 49 closure sealing IP ratings 49 closure selection charts 46 closu...

Страница 122: ...edure 72 lock block gas block connector 59 loops for vertical runs 39 LPM loose protected microduct 13 16 lubricants for cable 25 manholes safety 9 marker tapes 21 membrane drier 78 microduct rounding...

Страница 123: ...TA L L AT I O N A N D M A I N T E N A N C E T R A I N I N G M A N U A L Index swivel 23 24 26 tandem blowing procedure 105 temperatures for storage installation 36 tension in vertical runs 39 tension...

Страница 124: ...nformation on our local sales offices please contact us at info emtelle com or visit our website at www emtelle com www emtelle us www fibre to the home com I N N O V A T I O N A N D F L E X I B I L I...

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