Dudgeon Offshore Windfarm, Necton Substation - Transmission Asset 003M Inspection 2023

Title Page

Site conducted
System I Equipment
Routine Inspection:
Tags
Task : 003M Interim Inspection & Maintenance
RAMS Document : Substation Inspections
Additional RAMS Documents (if applicable) :
Work Type (multiple selection available):
- Visual
- Inspection
- Minor Maintenance
- Lamp Change
Date
Location

General Information

INSTRUCTIONS:
-------------------------------------
1. Answer the questions below.
2. Add photos and notes by clicking on the media icon.
3. To add a Corrective Measure click on the paperclip icon then "Add Action", provide a description, assign to a member, set priority and due date.
4. Complete audit by providing digital signature.
5. Share your report by exporting as PDF, Word, Excel or Web Link.
Safety Doc Required

Supplementary Details

Materials / Components required / used :
Name of Inspection Engineer:
Related Documents :
Notes : Work Limited to changing lamps, functional Tests, taking readings and visual inspections only.

Super Grid Transformers - C177-OPS-E-MB-0002

Super Grid Transformer no. 1

1. Listen for any abnormal noises from transformer. Note if abnormal or excessively loud noises are noted evacuate room and inform substation Senior Authorised Person or Great Yarmouth Control Room on 01493 841711 immediately.
2. Record max temperatures from gauges in table below and reset. Note if any temperature is above 90°C evacuate room and inform platform Senior Authorised Person immediately.
Max Oil Temperature - °C - Maximum
Max Oil Temperature - °C - Standing
HV Max Winding Temperature - °C - Maximun
HV Max Winding Temperature - °C - Standing
LV Max Winding Temperature - °C - Maximun
LV Max Winding Temperature - °C - Standing
MV Max Winding Temperature - °C - Maximun
MV Max Winding Temperature - °C - Standing
3. Visually inspect external surfaces of transformer including LCC, bushings, conservator and cable terminations for damage, corrosion or oil leaks.
4. Visually inspect external surfaces of tap changer including drive box for damage, corrosion or oil leaks.
5. Visually inspect surfaces of cooling fans, radiators and associated cooling system pipework, glands and valves for damage, corrosion and leaks.
6. Visually inspect bunds both under radiators and transformer for integrity and content. Drain if required and raise notification if corrective work is needed.
7. Check conservator tank, bushing and tap changer oil levels are normal.
8. Visually inspect transformer and tap changer breathers and Silicagel. Raise notification if bottom section is discoloured.
9. Check by proximity that heaters in the tap changer drive box, control cabinets and marshalling kiosk are functioning correctly.
10. Visually check internal wiring of LCC and that no MCBs are tripped or fuses are blown.
11. Check remote tap changer indications are reading correctly.
12. Current Tap Position
13. Perform a thermographic check of transformer, tap changer, cable terminations and control cabinets: noting any abnormalities.
14. Record number of Taps
15. 33kV Surge Arrestor (red) mA
16. 33kV Surge Arrestor (yellow) mA
17. 33kV Surge Arrestor (Blue)
18. 132kV Surge Arrestor (red) mA
19. 132kV Surge Arrestor (yellow) mA
20. 132kV Surge Arrestor (Blue)
21.400kV Surge Arrestor (red) mA
22. 400kV Surge Arrestor (yellow) mA
23. 400kV Surge Arrestor (Blue)
24. Bund Pump Reading

Super Grid Transformer No.2

1. Listen for any abnormal noises from transformer. Note if abnormal or excessively loud noises are noted evacuate room and inform substation Senior Authorised Person or Great Yarmouth Control Room on 01493 841711 immediately.
2. Record max temperatures from gauges in table below and reset. Note if any temperature is above 90°C evacuate room and inform platform Senior Authorised Person immediately.
Max Oil Temperature - °C - Maximum
Max Oil Temperature - °C - Standing
HV Max Winding Temperature - °C - Maximun
HV Max Winding Temperature - °C - Standing
LV Max Winding Temperature - °C - Maximun
LV Max Winding Temperature - °C - Standing
MV Max Winding Temperature - °C - Maximun
MV Max Winding Temperature - °C - Standing
3. Visually inspect external surfaces of transformer including LCC, bushings, conservator and cable terminations for damage, corrosion or oil leaks.
4. Visually inspect external surfaces of tap changer including drive box for damage, corrosion or oil leaks.
5. Visually inspect surfaces of cooling fans, radiators and associated cooling system pipework, glands and valves for damage, corrosion and leaks.
6. Visually inspect bunds both under radiators and transformer for integrity and content. Drain if required and raise notification if corrective work is needed.
7. Check conservator tank, bushing and tap changer oil levels are normal.
8. Visually inspect transformer and tap changer breathers and Silicagel. Raise notification if bottom section is discoloured.
9. Check by proximity that heaters in the tap changer drive box, control cabinets and marshalling kiosk are functioning correctly.
10. Visually check internal wiring of LCC and that no MCBs are tripped or fuses are blown.
11. Check remote tap changer indications are reading correctly.
12. Current Tap Position
13. Perform a thermographic check of transformer, tap changer, cable terminations and control cabinets: noting any abnormalities.
14. Record number of Taps
15. 33kV Surge Arrestor (red) mA
16. 33kV Surge Arrestor (yellow) mA
17. 33kV Surge Arrestor (Blue)
18. 132kV Surge Arrestor (red) mA
19. 132kV Surge Arrestor (yellow) mA
20. 132kV Surge Arrestor (Blue)
21.400kV Surge Arrestor (red) mA
22. 400kV Surge Arrestor (yellow) mA
23. 400kV Surge Arrestor (Blue)
24. Bund Pump Reading

SVC Cooler - C177-OPS-H-MB-0001

SVC Cooler No.1

Outdoor Cooler - General visual inspection to consist of general condition/ corrosion and pollution.
Heat exchanger coil - Check for pollution and tightness, clean and repair if necessary
Piping connections - Check for tight fit and deformations. Ensure tight fit and deformations.
Connections and fixings - Check for tight fit and deteriorations, ensure tight fitting repair if necessary
Shut off devices, valves and security modules - Check operation and accessibility, replaced damaged parts and ensure accessibility
Fans, motors and impellers - Check function and accessibility, remove obstacles and pollution, replace bearing if necessary, ensure accessibility, replace damaged fans if necessary
Switching devices - Check function and accessibility, replace bearing if necessary, ensure accessibility
Check function and accessibility, replace bearing if necessary, ensure accessibility
Junction Boxes, strain reliefs and cable fittings - Check tight fit and operation, replace damaged parts, retighten loose screw connections.
Refilling Pump
Motors with lubricating nipples must be lubricated after 2000 hours
If non-operational for a long period shaft must be turned every 3 months to protect seals from seizure
On CCT1 - Record SF6 Gas pressure/ density (kPa)
Cooling Unit
Pump – Check the pump for smooth running
Complete system – Check the system for leakage at all accessible parts
Expansion tank – Check whether the level in the tank is above the alarm level
Hoses, gaskets – No maintenance required
Resin for demineralisation unit – No maintenance required
Strainer – No maintenance required
Cooling System HMI
No maintenance required
Outdoor Cooler
General visual inspection, check for;
General condition
Corrosion
Pollution
Heat exchanger coil
Check for pollution and tightness
Clean and repair if necessary
Piping connections
Check for tight fit and deformations
Ensure tight fitting and repair any leakages if necessary
Connections and fixations
Check for tight fit and deformations
Ensure tight fitting and repair any leakages if necessary
Shut-off-devices, valves and security modules
Check operation and accessibility
Replace damaged parts and ensure accessibility
Fans, motors and impellers
Check function, free running, noises and pollution
Remove obstacles and pollution
Replace bearings if necessary
Replace damaged fans if necessary
Check closed condensate holes – open and drain condensate
Switching devices
Check function and accessibility
Replace bearing if necessary
Ensure accessibility
Junction boxes, strain reliefs and cable fittings
Check tight fit and operation
Replace damaged parts
Retighten loosened screw connections
Cooling System
Electrolytic Conductivity Cells
Cell must be cleaned at regular intervals
Differential Pressure Switches
The instruments are maintenance free, however, the indicator and switching function should be checked
Valves
Butterfly valve
Regular visual examination of butterfly valves to ensure no leakage or damage
Refilling Pump – Perform 3M maintenance
Conductivity Meter – Check calibration and recalibrate as necessary
Bund Pump Counter

SVC Cooler No.2

Outdoor Cooler - General visual inspection to consist of general condition/ corrosion and pollution.
Heat exchanger coil - Check for pollution and tightness, clean and repair if necessary
Piping connections - Check for tight fit and deformations. Ensure tight fit and deformations.
Connections and fixings - Check for tight fit and deteriorations, ensure tight fitting repair if necessary
Shut off devices, valves and security modules - Check operation and accessibility, replaced damaged parts and ensure accessibility
Fans, motors and impellers - Check function and accessibility, remove obstacles and pollution, replace bearing if necessary, ensure accessibility, replace damaged fans if necessary
Switching devices - Check function and accessibility, replace bearing if necessary, ensure accessibility
Check function and accessibility, replace bearing if necessary, ensure accessibility
Junction Boxes, strain reliefs and cable fittings - Check tight fit and operation, replace damaged parts, retighten loose screw connections.
Refilling Pump
Motors with lubricating nipples must be lubricated after 2000 hours
If non-operational for a long period shaft must be turned every 3 months to protect seals from seizure
On CCT1 - Record SF6 Gas pressure/ density (kPa)
Cooling Unit
Pump – Check the pump for smooth running
Complete system – Check the system for leakage at all accessible parts
Expansion tank – Check whether the level in the tank is above the alarm level
Hoses, gaskets – No maintenance required
Resin for demineralisation unit – No maintenance required
Strainer – No maintenance required
Cooling System HMI
No maintenance required
Outdoor Cooler
General visual inspection, check for;
General condition
Corrosion
Pollution
Heat exchanger coil
Check for pollution and tightness
Clean and repair if necessary
Piping connections
Check for tight fit and deformations
Ensure tight fitting and repair any leakages if necessary
Connections and fixations
Check for tight fit and deformations
Ensure tight fitting and repair any leakages if necessary
Shut-off-devices, valves and security modules
Check operation and accessibility
Replace damaged parts and ensure accessibility
Fans, motors and impellers
Check function, free running, noises and pollution
Remove obstacles and pollution
Replace bearings if necessary
Replace damaged fans if necessary
Check closed condensate holes – open and drain condensate
Switching devices
Check function and accessibility
Replace bearing if necessary
Ensure accessibility
Junction boxes, strain reliefs and cable fittings
Check tight fit and operation
Replace damaged parts
Retighten loosened screw connections
Cooling System
Electrolytic Conductivity Cells
Cell must be cleaned at regular intervals
Differential Pressure Switches
The instruments are maintenance free, however, the indicator and switching function should be checked
Valves
Butterfly valve
Regular visual examination of butterfly valves to ensure no leakage or damage
Refilling Pump – Perform 3M maintenance
Conductivity Meter – Check calibration and recalibrate as necessary
Bund Pump counter

Shunt Reactors - C177-OPS-E-MB-0008

Shunt Reactor No.1

1. Listen for any abnormal noises from transformer. Note if abnormal or excessively loud noises are noted evacuate room and inform substation Senior Authorised Person or Great Yarmouth Control Room on 01493 841711 immediately.
2. Record max temperatures from gauges in table below and reset. Note if any temperature is above 90°C evacuate room and inform platform Senior Authorised Person immediately.
Max Oil Temperature - °C
Max Winding Temperature - °C
3. Visually inspect external surfaces of transformer including LCC, bushings, conservator and cable terminations for damage, corrosion or oil leaks.
4. Visually inspect external surfaces of tap changer including drive box for damage, corrosion or oil leaks.
5. Visually inspect surfaces of cooling fans, radiators and associated cooling system pipework, glands and valves for damage, corrosion and leaks.
6. Visually inspect bunds both under radiators and transformer for integrity and content. Drain if required and raise notification if corrective work is needed.
7. Check conservator tank, bushing and tap changer oil levels are normal.
8. Visually inspect transformer and tap changer breathers and Silicagel. Raise notification if bottom section is discoloured.
9. Check by proximity that heaters in the tap changer drive box, control cabinets and marshalling kiosk are functioning correctly.
10. Visually check internal wiring of LCC and that no MCBs are tripped or fuses are blown.
13. Perform a thermographic check of transformer, tap changer, cable terminations and control cabinets: noting any abnormalities.
14. Tap Position 4
15. Tap counter
16. Bund Pump Counter
17. Surge Arrestor Red Phase (mA)
18. Surge Arrestor Yellow Phase (mA)
19. Surge Arrestor Blue Phase (mA)

Shunt Reactor No.2

1. Listen for any abnormal noises from transformer. Note if abnormal or excessively loud noises are noted evacuate room and inform substation Senior Authorised Person or Great Yarmouth Control Room on 01493 841711 immediately.
2. Record max temperatures from gauges in table below and reset. Note if any temperature is above 90°C evacuate room and inform platform Senior Authorised Person immediately.
Max Oil Temperature - °C
Max Winding Temperature - °C
3. Visually inspect external surfaces of transformer including LCC, bushings, conservator and cable terminations for damage, corrosion or oil leaks.
4. Visually inspect external surfaces of tap changer including drive box for damage, corrosion or oil leaks.
5. Visually inspect surfaces of cooling fans, radiators and associated cooling system pipework, glands and valves for damage, corrosion and leaks.
6. Visually inspect bunds both under radiators and transformer for integrity and content. Drain if required and raise notification if corrective work is needed.
7. Check conservator tank, bushing and tap changer oil levels are normal.
8. Visually inspect transformer and tap changer breathers and Silicagel. Raise notification if bottom section is discoloured.
9. Check by proximity that heaters in the tap changer drive box, control cabinets and marshalling kiosk are functioning correctly.
10. Visually check internal wiring of LCC and that no MCBs are tripped or fuses are blown.
13. Perform a thermographic check of transformer, tap changer, cable terminations and control cabinets: noting any abnormalities.
14. Tap Position 4
15. Tap counter
16. Bund Pump Counter
17. Surge Arrestor Red Phase (mA)
18. Surge Arrestor Yellow Phase (mA)
19. Surge Arrestor Blue Phase (mA)

Harmonic Filters - C177-OPS-E-MB-0005

Harmonic Filter No.1

Visually inspect from the outside of the harmonic filter compounds, the harmonic filters comprising of capacitor banks, insulators and CT's, along with associated support structures for any obvious signs of damage or corrosion, swelling of capacitors or low oil level in the CT's
Unbalance current Red Phase (amps)
Unbalance current Yellow Phase (amps)
Unbalance current Blue Phase (amps)
132kV Surge Arrestor Counter Red Phase (mA)
132kV Surge Arrestor Counter Yellow Phase (mA)
132kV Surge Arrestor Counter Blue Phase (mA)
Internal 132kV Surge Arrestor Counter Red Phase (mA)
Internal 132kV Surge Arrestor Counter Yellow Phase (mA)
Internal 132kV Surge Arrestor Counter Blue Phase (mA)

Harmonic Filter No.2

Visually inspect from the outside of the harmonic filter compounds, the harmonic filters comprising of capacitor banks, insulators and CT's, along with associated support structures for any obvious signs of damage or corrosion, swelling of capacitors or low oil level in the CT's
Unbalance current Red Phase (amps)
Unbalance current Yellow Phase (amps)
Unbalance current Blue Phase (amps)
132kV Surge Arrestor Counter Red Phase (mA)
132kV Surge Arrestor Counter Yellow Phase (mA)
132kV Surge Arrestor Counter Blue Phase (mA)
Internal 132kV Surge Arrestor Counter Red Phase (mA)
Internal 132kV Surge Arrestor Counter Yellow Phase (mA)
Internal 132kV Surge Arrestor Counter Blue Phase (mA)

Earth Aux Transformer - C177-OPS-E-MB-0009

Earthing Transformer No. 1

1. Listen for any abnormal noises from transformer. Note if abnormal or excessively loud noises are noted evacuate room and inform substation Senior Authorised Person or Great Yarmouth Control Room on 01493 841711 immediately.
2. Record max temperatures from gauges in table below and reset. Note if any temperature is above 90°C evacuate room and inform platform Senior Authorised Person immediately.
Max Oil Temperature - °C
3. Visually inspect external surfaces of transformer including LCC, bushings, conservator and cable terminations for damage, corrosion or oil leaks.
4. Visually inspect external surfaces of tap changer corrosion or oil leaks.
5. Visually inspect surfaces of cooling radiators and associated cooling system pipework, glands and valves for damage, corrosion and leaks.
6. Visually inspect bunds both under radiators and transformer for integrity and content. Drain if required and raise notification if corrective work is needed.
7. Check conservator tank, bushing and tap changer oil levels are normal.
8. Visually inspect transformer and tap changer breathers and Silicagel. Raise notification if bottom section is discoloured.
9. Perform a thermographic check of transformer, cable terminations, bushings and control cabinets: noting any abnormalities.
10. Bund Pump Counter.

Earthing Aux Transformer No.2

2. Record max temperatures from gauges in table below and reset. Note if any temperature is above 90°C evacuate room and inform platform Senior Authorised Person immediately.
Max Oil Temperature - °C
3. Visually inspect external surfaces of transformer including LCC, bushings, conservator and cable terminations for damage, corrosion or oil leaks.
4. Visually inspect external surfaces of tap changer corrosion or oil leaks.
5. Visually inspect surfaces of cooling radiators and associated cooling system pipework, glands and valves for damage, corrosion and leaks.
6. Visually inspect bunds both under radiators and transformer for integrity and content. Drain if required and raise notification if corrective work is needed.
7. Check conservator tank, bushing and tap changer oil levels are normal.
8. Visually inspect transformer and tap changer breathers and Silicagel. Raise notification if bottom section is discoloured.
9. Perform a thermographic check of transformer, cable terminations, bushings and control cabinets: noting any abnormalities.
10. Bund Pump Counter.

33kV Air Insulated Switchgear - C177-OPS-E-MB-001

33kV AIS No.1

Visually inspect from ground level making sure the minimum safety distance of 1.4 metres to exposed conductors and 300mm to insulators is kept at all times, the Air Insulated Switchgear (earth Switch and disconnector) and associated support structures for any obvious signs of damage or corrosion.
By Proximity, check the heater in all the drive cubicles are working.
Carry out Partial Discharge (TEV) survey of switchgear including cable boxes.
Visual inspection of the capacitors / Bushings for leaks
Inspection of the capacitors for bulging and overheating
Inspection of bushing for dirt
Inspection of insulators
Circuit Breaker gas Pressure

33kV AIS No.2

Visually inspect from ground level making sure the minimum safety distance of 1.4 metres to exposed conductors and 300mm to insulators is kept at all times, the Air Insulated Switchgear (earth Switch and disconnector) and associated support structures for any obvious signs of damage or corrosion.
By Proximity, check the heater in all the drive cubicles are working.
Carry out Partial Discharge (TEV) survey of switchgear including cable boxes.
Visual inspection of the capacitors / Bushings for leaks
Inspection of the capacitors for bulging and overheating
Inspection of bushing for dirt
Inspection of insulators
Circuit Breaker gas Pressure

Grounds Maintenance - C177-OPS-Z-MB-0005

Spray off woodland areas and newly planted trees with gyphosate based product (April, Jul, Aug)
Cut hedge along access road up to the first sharp corner in the road using tractor and sidearm. (Feb, Sep)
Cut and collect all species rich grassland areas (Feb, Sep)
Weed/spray inside substation compound (Feb, Sep)
Spray off woodland areas and newly planted trees with glyphosate based product. (Apr, Jul, Aug)

Telecoms, Intruder and CCTV - C177-OPS-T-MB-0001 / 002

Telecoms

Cisco 3 monthly
Visual Inspection
Check kit secure
Check air vents are free from debris
If dual supply, check both LEDs alight with no error codes displayed
Check UPS battery
Listen for any unusual noise especially from the fans

CCTV

3 monthly
Clean glass in front of camera.
Refill washer with liquid. Use anti-freeze of automotive grade (Applies for camera station with wipe/wash function only).
In addition to 3M tasks, perform the following:
Pan/tilt mounted cameras should be operated until stopped in all 4 directions (pan left + right, tilt up + down). View the picture for the actual camera to detect possible lugging (uneven movement of the camera station).

Intruder

Fibre SenSys- Visually inspect the FD508 APU at least every 90 days:
Ensure the Power LED is illuminated and all alarm and fault LED indicators are normal.
Check the optical connectors at the back of the APU, making sure they are not pinched or otherwise compromised.

LVAC Board - C177-OPS-E-MB-0017

6 monthly inspections
Perform an overall visual inspection front, and rear, to see that there is no evidence of loose parts, warping, or undue vibration.
Check all indicators, meters, and instruments for proper operation.
Make sure all bolted panels are secure.
Verify operation of heaters and thermostats, if used.
Check for undue noise or vibration that might loosen bolted connections.
Look for evidence of moisture in the switchgear.

230 Volt AC & 110V DC UPS - C177-OPS-E-MB-0018

1/3/6 monthly, visual inspection only. For detailed instructions on how to perform each check, refer to IOM manual.
Visually check electrical connections and component for signs of overheating or corrosion. Rectify as necessary
Check painted and plated components for signs of damage or corrosion. Rectify as necessary.
measure and record the voltage of all cells
Record battery charging voltage and ambient temperature in vicinity of batteries
Charge Voltage 1
Charge Voltage 2

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Record Cell Voltages

Battery no. 1

Cell 1
Cell 2
Cell 3
Cell 4
Cell 5
Cell 6
Cell 7
Cell 8
Cell 9
Cell 10
Cell 11
Cell 12
Cell 13
Cell 14
Cell 15
Cell 16
Cell 17
Cell 18
Cell 19
Cell 20
Cell 21
Cell 22
Cell 23
Cell 24
Cell 25
Cell 26
Cell 27
Cell 28
Cell 29
Cell 30
Cell 31
Cell 32
Cell 33
Cell 34
Cell 35
Cell 36
Cell 37
Cell 38
Cell 39
Cell 40
Cell 41
Cell 42
Cell 43
Cell 44
Cell 45
Cell 46
Cell 47
Cell 48
Cell 49
Cell 50
Cell 51
Cell 52
Cell 53
Cell 54
Cell 55

Battery no.2

Cell 1
Cell 2
Cell 3
Cell 4
Cell 5
Cell 6
Cell 7
Cell 8
Cell 9
Cell 10
Cell 11
Cell 12
Cell 13
Cell 14
Cell 15
Cell 16
Cell 17
Cell 18
Cell 19
Cell 20
Cell 21
Cell 22
Cell 23
Cell 24
Cell 25
Cell 26
Cell 27
Cell 28
Cell 29
Cell 30
Cell 31
Cell 32
Cell 33
Cell 34
Cell 35
Cell 36
Cell 37
Cell 38
Cell 39
Cell 40
Cell 41
Cell 42
Cell 43
Cell 44
Cell 45
Cell 46
Cell 47
Cell 48
Cell 49
Cell 50
Cell 51
Cell 52
Cell 53
Cell 54
Cell 55

Fire detection System - C177-OPS-J-MB-0001

GIS Building
Visual Inspection of detectors:
Detectors which appear dirty on the outside are likely to be dirty on the inside. These can be cleaned without dismantling them by using a vacumn cleaner with a brush attachment, which will remove dust deposits. The detector case can be cleaned with a cloth dampened with a solution of washing up liquid. Cleaning should be followed by functional testing.
Check all entries in the log book have been addressed, check the event log in the panel and take the necessary remedial actions.
Visually inspect the panel for any moisture ingress or other deterioration, check all battery connections and
Ascertain if any building or structural alterations have been carried out that would affect the placement / location of call points or detectors. If so, perform a visual inspection.
Record in the logbook any defects or remedial actions that must be undertaken and arrange for these to be carried out as soon as possible
SVC Building
Visual Inspection of detectors:
Detectors which appear dirty on the outside are likely to be dirty on the inside. These can be cleaned without dismantling them by using a vacumn cleaner with a brush attachment, which will remove dust deposits. The detector case can be cleaned with a cloth dampened with a solution of washing up liquid. Cleaning should be followed by functional testing.
Check all entries in the log book have been addressed, check the event log in the panel and take the necessary remedial actions.
Visually inspect the panel for any moisture ingress or other deterioration, check all battery connections and
Ascertain if any building or structural alterations have been carried out that would affect the placement / location of call points or detectors. If so, perform a visual inspection.
Record in the logbook any defects or remedial actions that must be undertaken and arrange for these to be carried out as soon as possible.

SCADA Control SVC Air Conditioning - C177-OPS-J-MB-0008

SCADA, Control & Protection - C177-OPS-J-MB-0008

General- The iRMC switch in the server panel should be used to periodically access each of the servers at least once every 4 months to check for any hardware errors. The customer self service (CSS) enables faulty components to be replaced without the need for a Fujitsu Engineer.

SVC Air Conditioning

1. Fan & Motor Assembly
a. Examine the fan and motor assemblies for lateral and end play in the bearings.
b. Ensure that no water is entering the motor via the electrical gland plate.
c. Check fan blades for damage and corrosion.
2. Refrigeration Circuits
a. Visually examine pipework and components for damage, wear and tear and oil patches, the latter being indicative of a system leak.
4. Electrical
a. Check all electrical connections for signs of overheating or arcing.
b. Check all cables for signs of chafing or physical damage.
5. Cabinet
a. Clean the cabinets using a mild detergent.
b. Treat any paint damage or rust as necessary.

Oil Water And Drains Seperator - C177-OPS-Z-MB-0001

Penstock Valves
Clean the unit by hosing down with clean water to remove any grit or debris.
Check for any leakage between the unit and concrete wall (or pipe) and the general soundness of the surrounding civil structure. Make good any faults.
Check tightness of all fixing bolts/nuts including foundation bolts.
It is recommended that all units are operated through a full cycle.
Whilst in the fully open/extended position check that there is no damage or excessive wear to the sealing surfaces.
Normal wear on the seals on penstock units may be overcome by adjustment of the wedges or adjusters.
Metal sealing surfaces and metal wedge faces should be greased, (ensuring where necessary for potable water applications that the grease has WRC/DWI approval as required).
Check all components for corrosion damage. Painted units should be checked for signs of corrosion or damage to the paint system and repaired in accordance with the repair scheme for the original paint system
Check any operating gear for damage, wear and freedom of movement. Clean the spindle threads by hosing down with clean water. Apply grease to the spindle, and to any grease nipples present in accordance with the recommended lubricant below.
Visually check electrical connections and component for signs of overheating or corrosion. Rectify as necessary.
Check any lifting beam hooks for freedom of movement. Check the disengagement ropes for wear and tear and replace with the same specification rope as necessary. Moving parts should be lightly oiled/greased.
Check that guarding originally supplied with the unit remains in position and is securely fixed, including any fixed guards or protection tubes.
All other moving parts should be lightly oiled or greased as appropriate.

Civils - C177-OPS-N-MB-0001

Internal and external Doors
Electromagnetic devices - Check all electrical hold open devices and associated sensors and alarms for correct function
Emergency and panic exit hardware - Check ease of opening and closing, adjust as necessary
Note: Lubrication will be limited to the application of a little light machine oil to the pivots of the top tripper mechanism of panic bolts, to the saddles of panic bolts and to the bolt head of panic latches
Check floor sockets for foreign matter and debris impeding bolt movement, clean as necessary
Threshold and seals, including smoke seals for fire rated doors- Visually inspect seals for rips and tears
Seals for acoustic doors- Visually inspect seals for rips and tears, Check alignment and latching of the leaves, adjust as necessary.
Overhead door controls- Check for oil leakage, tightness of fixings and correct operation, Apply light oil lubricant to exposed pivot points. Ensure door closes smoothly and firmly into the frame, overcoming the latch and/or seals as fitted. Always check lock and hinge function before resorting to adjustment of the closer. Check condition of door stops where fitted. These should be present to all non-back-check applications to prevent the door opening beyond the limit of the closer.
Lever handles- Check back-plate and rose fixings for tightness, adjust as necessary, Check spindle grub screw fixings, tighten as necessary,
Pull handles- Check fixings for tightness, tighten as necessary
Internal and External Doors 6 Monthly
Perform 3M maintenance tasks
Doors (frame and leaf)
Check door alignment and ensure doors open freely
Check gaps at lock edge to frame – should be 3-4mm
Check doors for dents and scratches, where damage has exposed the metalwork or penetrated the door skin, full damage assessment is to be carried out and rectification work identified
Ensure that door openings are clear of obstructions and door operation is not impeded
Check locks and panic hardware to ensure correct and smooth operation, make any necessary adjustments
Check ironmongery is operable
Check condition of mastic between frame and structure
General cleaning to be carried out IAW cleaning guidance in C177-STD-Q-MA-0002, section 5
Hinges
Inspect hinges for wear and check tightness of all screws
Hinge realignment and/or screw replacement to be carried out as necessary
Any squeaking to be investigated, paying particular attention to pin misalignment
Hinges to be lubricated with light machine oil
Ancillary products
Any ancillary products fitted to the door should be checked to ensure they do not interfere with correct operation of other ironmongery or the door leaf
Locks and latches
Ensure proper engagement of latch/deadlock with the striking plate
Ensure holes in frame behind striking plates are free from foreign matter allowing for free and unrestricted movement of bolt(s)
Lubricate side and striking frame of latch bolts as necessary, ensuring no grease is applied to the internal locking mechanism
Cylinders
Apply powdered graphite into keyway of external doors
SVC Rhino Door
3 monthly Checks
Check bottom guide rail for debris and obstructions
Check all electrical safety devices
Check inverter current draw
Check motor and JB terminals for security
Check the manual operation of the door for free running over its entire travel
6 Monthly Checks
perform 3 monthly checks
Check the main drive chain tension
Check the main drive chain condition, lubricate and spray as necessary with open gear spray, as per maintenance diagram in document C177-STD-R-MA-0006 page 61
Check the tension of the secondary drive chain
Check the condition of the secondary drive chain
Check the tension of the drive belt
Check the condition of the drive belt
Check operation of brake solenoid
Noise Enclosures SGT and SHR 6 monthly
Perform visual and manual inspection of all moving parts
Acoustic personnel door
Tighten screws as required
Acoustic panels
Visually inspect for surface damage

Structural & Security

Perform a Substation walk-around to inspect structure and cladding for any signs of damage or corrosion. Include structural steel, cladding, doors, windows, flooring, hand rails, steps, gantries and raised floors.
Inspect main fence panels and supports for security. Check SCADA for correct operation of gate alarm.
Visually check the shunt reactor compound fence and filter compound fence for signs of damage. Note : access to dividing fence between filter compounds is not possible with the filters energised.

Roller Shutter Door

Visually inspect from ground level door, guides, motor and barrel.
Visually inspect from ground level door, guides, motor and barrel.
Visually inspect from ground level door, guides, motor and barrel.
Visually inspect from ground level door, guides, motor and barrel.
Perform a function test of operation including limit switches.

Substation General

Safety Equipment

Check all fire extinguishers are visible, easily accessible and in the correct location. Check they are free from damage, the tamper tags are in tact, gauges are indicating adequate pressure and the extinguisher is within serviceable date.
Check that the first aid kit contents are in date.
Check that the defibrillator and pads are in serviceable date, pads and leads are present and the whole unit is damage free. Confirm the active status indicator is flashing green.
Check the eyewash bottles are in date, seals are intact and containers free from damage.
Check that all safety signage is in correct location, unobstructed from view and free from damage.
Check all safety signage on external fence is in correct location, unobstructed from view and free from damage. Check that there are no holes burrowed under the fence.

Health and Hygiene

Visually check all kitchen appliances (fridge, Kettle, microwave, toaster) for cleanliness. Perform function test. Clean if required.
Run through at least 1 tap or the shower for 2 minutes. Record details in the water hygiene folder.
Visually check all toilet and washroom facilities for cleanliness. Clean if required.

Lighting

Ensure that there are no mcb's tripped.
Visually Check that all internal lighting is functioning in normal operating mode.
Visually Check that all flood lights in the GIS hall are functioning in normal operating mode. Replace lamps if required.
Visually Check that all external building lighting is functioning in normal operating mode. Replace lamps if required.
Visually Check that all floodlight column lighting is functioning in normal operating mode. Replace lamps if required.
Visually Check that all internal emergency lighting is functioning in normal operating mode. Replace lamps if required.
Visually Check that all external light sensitive LED lighting is functioning in normal operating mode. Replace lamps if required.

SF6 Gas Levels

Filter No.1

121-zone-1
161-zone-1
354-zone-1
356-zone-2
350-zone-0
353-zone-3
354-zone-4
356-zone-5
GIB-zone-6

Filter No.2

454-zone-1
456-zone-2
450-zone-0
453-zone-3
454-zone-4
456-zone-5
GIB-SE-zone-6

SGT1

184-zone-1
186-zone-2
184-zone-4
186-zone-5
180-zone-0
183-zone-3
CBL-SE-zone-6
187MD-zone-7

SGT2

284-zone-1
286-zone-2
180-zone-0
183-zone-3
CBL-SE-zone-6
287MD-zone-7

Export Circuit No.1

104-zone-1
106-zone-2
104-zone-4
106-zone-5
105-zone-0
103-zone-3
CBL-SE-zone-6
153-zone-7
CBL-SE-zone-8

Export Circuit No.2

204-zone-1
206-zone-2
204-zone-4
206-zone-5
205-zone-0
203-zone-3
CBL-SE-zone-6
253-zone-7
CBL-SE-zone-8

Bus Section

124-zone-1
124-zone-2
166-zone-1
166-zone-2

SF6 Alarm

Panel Condition
Alarm test

Sign-off

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