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8/10/2019 Worksheet in Korek Preventative Maintenance Process (Compatibility Mode)
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Site code: Site Zone: Site Priority
Field Maint. Eng. name: Technicians name:
NOC Eng.
Site Address:
Site Type: Roof Top: Greenfield
Site Key: Fence Key:
Site Accessibility:
No. of Cascaded Sites:
Date:
Time In: Time out:
Remarks:
Preventive Maintenance Check List
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Power Supply Type
KWH meter reading
Neutral / Phase 220 V
Phase / Phase 380 V
Neutral / Earth
Power Cabinet
Number of power cabinets
Number of -48 V PSU
Number of 24 V PSU
Number of Operating -48 V DOU
Number of Operating 24 V DOU
Number of Spare -48 V DOU
Number of Spare 24 V DOU
Check for DOUs Labels
Number of Operating BFU
Number of Spare BFU
Check for BFU Operation
Check for power Alarms
Remarks
Electrical Installation
P o w er cab i n e t 2
P o w er cab i n e t 1
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Number of -48V Battery strings
Number of 24V Battery Strings
Cell nominal voltage
Cell ampere hour
Number of broken batteries
Number of ballooned batteries
Number of leaking batteries
Check for batteries connection
Check for battery charging
Check for batteries charging
Check for batteries discharging
Check for batteries discharging alarm
Number of Batteries to be replaced
Load on power cabinet 1
Load on power cabinet 2
Remarks
Batteries
Po w er c ab in et 1 Po w er c ab in et 2
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Nb of 2G 900 & 1800 cabinets / Nb od DRUNo of 3G cabinets / NB of RUType of Transmission equipment
time (minutes) Total voltage0 25.4
10 25.230 24.950 24.760 24.480 24.1
100 23.9120 23.7140 23.5 180 23.2
Batteries Test
The load on power cabinet 1
Number of Batteries
Power cabinet 1
22
22.5
23
23.5
24
24.5
25
25.5
26
0 10 30 50 60 80 100 120 140 180
V o
l t a g e
Time
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Nb of 2G 900 & 1800 cabinets / Nb od DRU
No of 3G cabinets / NB of RUType of Transmission equipment
time (minutes) Total voltage0 -50.3
10 -50.1
30 -49.950 -49.760 -49.580 -49.2
100 -48.9120 -48.6140 -48.3180 -48
Power cabinet 2
Number of Batteries
The load on power cabinet 2
-50.5
-50
-49.5
-49
-48.5
-48
-47.5
-47
-46.50 10 30 50 60 80 100 120 140 180
V o
l t a g e
Time
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OK NOK NA
Verify main earth - plate is present and cable well tightened
Battery Cabinet earthing
Transmission earthing
Verify RBS earthing
Verify Door earthing
Distribution Panels earth
Surge arrestor box earth
Verify earth cables & terminals
Feeders earth kits & isolation inside the shelter
Verify earthing of the shelter
Earthing of I beam
Generator Body earth
Fuel tank earthing
Verify tower earthing
Verify lightning rod on tower if connected to earth
Verify Antennas earthing
Feeders and TX cables on tower earthing
Value of the Main Earth
Remarks:
Earthing
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OK NOK NADistribution panels general appearance
Colour coding of cables
Check tightening connections in Distribution Panel
All connections have terminals
Check Labeling on cable and circuit breaker
Check the light lamps
Cut the power and check the emergency light
Emergency light batteries discharging time
Check cables routing securing
Is the wiring drawing available on site
Remarks:
5. Distribution Panels
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Number of Air conditioning units
Type of Air conditioning units
Compressor Horse power or BTU
Output A/C 1 Flow Temperature
Output A/C 2 Flow TemperatureOK NOK N/A
Compressors Vibration
Check A/C Control Leds
Check Outdoor Cabinet A/C Working
Check Outdoor Cabinet A/C Cables and alarms
Remove and clean the filters of the AC indoor unit
Check A/C drain system
Clean the outdoor unit
Test operation of units under fault condition
Ice on indoor or outdoor unit
Check If AC down when Fire occur
Remarks:
Air conditioning
A/C 1 A/C 2
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Number of RBS cabinets:
Number of E1 connected to the site
BTS model
Number of Sectors
BTS's Configuration in Front Office
BTS's Configuration in IDB or Script
Number of existing DRU boards
Check the cabling inside the RBS
Check that No Alarms on OMT
Check IP Connectivity for 3G
Check for alarms
Boards Missing
Remarks
RBS
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Indoor CabinetOK NOK NA
AC1 alarm
AC2 alarm
AC control failure
High Temperature alarm
Door open
Surge arrestor failure
Generator running
Generator failure
Generator low fuel level
Rectifier DC failure
Rectifier AC failure
Main power absence
Batteries mode
Fire alarm (Zone1&Zone2)
Smoke alarm
Outdoor Cabinet
OK NOK NATemperature Sensor Failure
Over-Temperature Alarm
A/C Power Failure-Battery Mode
Sensors and Alarms
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Low-Voltage Alarm
DC Disconnect
Battery Disconnect Alarm
Air Condition
Door open alarm
Generator running
Generator failure
Generator low fuel level
check fixation of Fire & Smoke sensors
Remarks:
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Number of generators
Brand of generators
KVA of generator
Hour Counter of generator
Fuel leakage
Oil leakage
Check generator voltage
Check generator Amperes
Check generator frequency
Check level of Fuel in tank
Check oil level of generator
Voltage of the generator's battery
Remarks:
Generator
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OK NOK NACheck the aviation light
Check the photo cell on the tower
Check the earth rod on the top of the tower
Check the painting of the tower
check the feeder Tray Fixed
check the feeder Tray is earth
check the feeder Tray is covered
Remarks:
Tower / Mast
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Fire Extinguisher brand
Fire Extinguisher type (Powder or CO 2)
Fire Extinguisher capacity ( Kg/L)
Fire Extinguisher S/N
Fire Extinguisher maintenance date
Fire Extinguisher filling date
Location of the Fire extinguisher
Remarks:
Extinguisher
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Item checkedThe grounding connections of the ODUs must be tight and connected to the tower Buss Bar using ring TagsBoth grounding points on the towers and on the tripods must be greased.
The grounding connections of the IDUs must be tight and grounded separately using ring tags.The indoor lightning arrestors must be well installed & grounded using ring tags.The outdoor lightning arrestors must be well installed & grounded using ring tags.
ALL IDUs must be labeled on the case of the modem. All IDUs clean of dust and FAN working properlyThe microwave IF cables must be tight, fixed well and well isolated.The ODU connectors must be well isolated using water proof tape
All unfixed mounts on the tower must be fixed carefully. All untightened microwave dishes must be fixed tightly and carefully.The microwave racks should be grounded to the Buss Bar and fixed to the cable ladder or to the ceiling.The DF blocks must be well fixed.Check the coaxial IF cable connectionCheck the states for the flexible waveguidepower cables connectionCheck IP ConnectivityCheck for near End AlarmsCheck for Far End Alarm
Type
Traffic Node 1Traffic Node 2
Traffic Node 3HI Cap 1HI Cap 2HI Cap 3
Remarks:
Transmission
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status
Direction To Near End IP Far End IP
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OK NOK NACheck the Main Power Cable
Check PCM & External Alarms Connections
Verify the cleaning of the OVP Connections
Labeling all cables in cable tray
Attach cables in cable tray
Verify the Feeders Connectors Isolation outside the shelter
Check ducts & covers
Feeders earth kits & isolation outside the shelter
Remarks:
Cabling Control & DDF
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