Worksheet in Korek Preventative Maintenance Process (Compatibility Mode)

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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Worksheet in Korek Preventative Maintenance Process (Compatibility Mode)

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