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26-May-2008 NEC Islamabad

Telenor-NEC Microwave Quality Standard. 26-May-2008 NEC Islamabad. Name of Documentation ; Telenor-NEC MW Quality Standard. When performing hazardous work or entering potentially hazardous area wear protective equipment, such as safety belt / head or eye protection.

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26-May-2008 NEC Islamabad

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  1. Telenor-NEC Microwave Quality Standard 26-May-2008 NEC Islamabad

  2. Name of Documentation ;Telenor-NEC MW Quality Standard

  3. When performing hazardous work or entering potentially hazardous area wear protective equipment, such as safety belt / head or eye protection. Smoking or open flame are prohibited on operation area. Properly remove and dispose of all unused hazardous materials. Comply with hazardous material documentation and reporting requirement. After using power tool or any other equipment, they must be cleaned and put in storage on daily basis. Keep all tool within designated work area. When cutting any kind of material safety glasses must be used . When handling conducting cable, the cable ends must be taped & insulated. All accidents on-site must be reported to appropriate personal immediately. Safety Guidelines for Equipment Installation

  4. Indoor Installation Work flow Start 19" Rack Installation DC PDP Installation IDU Installation IDU Installation C-node Installation DDF Installation Cable layout & Termination Grounding of Equipment Grounding of Equipment Labeling of Equipment End End

  5. Assemble the 19" rack. Position the rack as per floor plan. Mark the four holes with two base plates. Drill the marked hole. Fix the Rawal bolts. Installed the rack (Distance from rear wall at least 200mm). Check the leveling of the rack. Install the grounding bus bar at upper rear side of 19" rack. Install the blind panel in front of grounding bus bar. Separate grounding of 19" rack should be done in shortest possible route. 19" Transmission Rack

  6. 19" Transmission Rack 19” rack with installed equipment 19” rack Site ID on 19” rack Blind Panel at front of bus bar Base plate Improper installation of bus bar

  7. Grounding bus bar at rear of rack Grounding for 19" Rack Blind panel of grounding bus bar Label for IDU Label for Power cable Link budget 19" Transmission Rack

  8. 19" Transmission Rack Rack grounding

  9. DC PDB with 10 branch circuit breakers. DC PDB installation with four screws Grounding of DC PDB. Labeling of branch circuit breakers. Power & grounding cables separately routed. Circuit breaker for IDU & C-Node is 6 amperes. DC PDB Installation 6 Amps circuit breakerfor IDU & C-node DC PDB Installation in 19’’ rack DC PDB Inner view PDB Grounding 0 VDC -Ve 48V DC Branch CB labeled with Far end ID

  10. 32 amperes circuit breaker for DC PDB with 5 branch circuit breakersand60 amperes circuit breaker for DC PDB with 10 branch circuit breakers. Rectifier Circuit breakers for NEC Equipment Rectifier CBs for NEC Equipment at indoor site Rectifier CBs for NEC Equipment at out door site

  11. Indoor Unit Installation Before installing IDU in 19" rack ,should be retighten the screws of bracket while correcting two brackets to 90º for IDU mount horizontally.

  12. IDU must be installed with four screw, along with washers. All screws must be securely tighten. All screws must be of same size ( M5 ). IDU must be separately grounded with bus bar. Grounding thimble must be properly crimped. IDU must be labeled with far end ID. Indoor Unit Installation

  13. Space between two IDUs must be 1 U* for radiation of heat. Space between two IDUs Space between two units will be1 U *1U = 1.75inches = 44.45mm

  14. Unpack and inspect received equipment for any damage and missing material Site preparation as per define layout. Mount C-node sub rack in 19" rack. Fasten the sub rack to the 19" rack with appropriate (M6) screws. Ensure proper length and routing of fiber/E1s cables. Use Flexible pipe for fiber patch cord when laid out of 19" rack . C-Node Installation C-Node tributary/E1 cables arrangement Fiber patch cord Use Flexible pipe for fiber patch cord when laid out of 19" rack .

  15. The E1 cable is to be stripped with sufficient length to reach DDF, unused wires to be cut and PVC tape must be used at the ends. The E1 cable must be arranged and neatly run around the 19" rack to the DDF panel. No extra cable should be left in side the rack. Grounding of DDF/DDP must be ensured. DDF/DDP should be installed at bottom of rack. DDF Installation Cable arrangement on DDF panel front view Cable arrangement on DDF panel rear view

  16. Ensure Labeling of E1s on the DDF. Hang DDF plan for O&M activity. DDF Grounding /Labeling DDF grounding DDF grounding E1s patching on DDF

  17. E1s cable and DC, AC power cable must be run separately along the cable rack as standard rule for cable management. Use flexible pipe for power cable/ optical fiber patch cords. Use surge arrestor for IF cable. All grounding cable must be of shortest possible length. Cable layout &Termination Flexible pipe for fiber patch cord Surge Arrestors Cable layout Grounding Cable

  18. Cable layout/Termination IFcablelayout NMS & E1s Cable layout IDU Power cable

  19. Cable Color and Size * For sites in MSC the DC PDB power cable is blue, black ** Prefabricated power cable with black jacket

  20. Grounding of Equipment

  21. Common Rule for Equipment Grounding • Yellow-Greencolor grounding cable. • Should be laid with shortest length. • Thimbles must be as per cable size. • Use proper crimping tool to crimp the thimble. • Grounding resistance less than 10 ohm. • Ground connections must be securely tighten. • No multiple connections with single point / thimble. In case there is no point available for the grounding, it should be informed to the TP implementation team. • Grounding of surge arrestors.

  22. Following equipment labeling is mandatory for effective O&M activity. 19" rack with near end site ID. Each hop with far end site ID. IF cables for main /stand by system. E1s cables . Fiber patch cords for end to end connectivity. Power cables for main/stand by system. Rectifier circuit breaker for NEC equipment. DC PDB branch circuit breaker with far end ID. Surge arrestor for main/stand by system. DC PDB labeling if more than one PDB is installed at the site. Labeling of equipment

  23. Outdoor Installation Workflow Start Antenna Offsetting & Assembling Antenna Mounting Side Strut Position IF Cable Run & Fixing Grounding Labeling End

  24. Antenna offsetting

  25. Antenna Assembling Unpack and inspect received equipment for any damage and verify the contents against packing list.

  26. Antenna Assembling Assemble the mounting bracket with the antenna (Different sizes of antenna requires different mounting brackets, refer to the manual that comes along with the antenna for details)

  27. Antenna Assembling Position the antenna to the mounting bracket then place the mounting screws and tighten

  28. Antenna Assembling There are typical four kind of connection ways to antenna 1- ODU Direct 2- Transducer 3- Flexible Waveguide 4- Hybrid

  29. Antenna Mounting • Use enough man power for lifting and installation of antenna. • Use rope and pulley for antenna installation. • Take extra care while lifting the big size antenna (1.8m) or lifting the antenna to high points. • Hold the antenna using Rope from down side during the lifting so that antenna do not touch the tower by the wind. • Use proper PPE (Personal Protective Equipment) when lifting the antenna.

  30. Antenna Mounting with ODU Direct Take out the ODU from the box, inspect it carefully for any damage.

  31. Antenna Mounting with ODU Direct Fix the ODU to the bracket with four screws (tightening torque is 4.0 N.m +/- 10% recommendation). Be careful not to damage the O-ring (Antenna). Polarization should be according to link plan.

  32. Antenna Mounting with Transducer Assemble the antenna, fix the ODU to the bracket by tightening the M6 screws (four locations) & ensure it is firmly fixed. IF connector should be sealed according to standard both from ODU & antenna (Transducer) side.

  33. Antenna Mounting with Flexible Waveguide Assemble the antenna, fix the ODU to the bracket by tightening the M6 screws (four locations) & ensure it is firmly fixed. Waveguide should be sealed according to standard both from ODU & antenna side.

  34. Antenna Mounting with Hybrid Assemble the antenna with Hybrid, fix the ODU to the bracket by tightening the M6 screws (four locations) & ensure it is firmly fixed. IF connector should be sealed according to standard both from ODU & antenna (Hybrid) side.

  35. Side Strut Position Antenna Offsetting & Side Strut should be positioned in such a way that there should be a suitable bending radius of IF cable/Waveguide, also the antenna should be free to move 25 degrees (Left Offset) or 25 degrees (Right Offset) if required

  36. IF Cable Run and Fixing 1.2m • Black UV protect tie-wrap (310×4.3 mm) used to fix IF cable by cross tightens for vertical and horizontal cable run at 1.2m intervals. • The IF cable not to be over tightened to avoid any deformation to IF cable.

  37. IF Cable Run and Fixing IF cables installed on horizontal rack; silicon applied at porthole to ensure no water seepage

  38. IF Cable Run and Fixing 2 meter IF cable loop on tower behind antenna

  39. Water proofing of WG and IF cable at ODU end • Water proofing with self bonding and again with Plastic (PVC) tape three layers each.

  40. Grounding • Separate grounding point used for each cable, If no space available at bus bar then both side of grounding bus bar can be used for two groundings only. Single point ground termination Two groundings with single point termination

  41. ODU Grounding • ODU must be separately Grounded with grounding clamp on tower. • Thimbles must be crimped with proper crimping tool. • Ground terminations must be securely tighten at both ends. • Up to 0.6m antenna the Cable length will be at least 0.8 meter. ODU With Separate groundings • Up to 1.2m antenna the Cable length will be at least 1meter. • The ODU grounding cable should be as short as possible. Thimble Crimping tool Separate clamp for both ODUs

  42. IF Cable Grounding • IF cable grounding depends on the height of tower for more than 20 meter height; First grounding will be • at vertical cable tray and second will be on horizontal cable tray prior to enter into Roxtec porthole .For less • than 20 meter IF grounding will one time on vertical or horizontal cable tray depending on availability of • grounding bus bar. At vertical cable Tray At Horizontal cable Tray

  43. IF Cable Grounding • Grounding kits must be properly terminated with each IF cable. • Water proofing with self bonding followed by PVC tape three layers each time. • Thimble must be crimped with proper crimping tool and securely tighten with grounding bus bar • Half of each turn must cover previous turn of tape while wrapping tape on the grounding kits • Separate grounding point of bus bar should be used for each IF cable. • Black UV protect tie-wrap (310×4.3 mm) used at both ends of grounding kit for each IF cable. PVC tape wrapping and black tie on both ends PVC tape wrapping Self bonding tape wrapping

  44. Labeling Antenna Direction Label with Far end Site ID

  45. Labeling ODU metal label and Direction Tag tied with IF cable

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