Christopher Last Inspection

• Conducted on

  Date

• Prepared by

• Location
  Address

CIRCUIT BREAKERS, ISOLATORS, EARTH SWITCHES, CTs, VTs, etc

• Perform TEV Testing

  Green

  Amber

  Red

• Check for oil, gas or compound leaks`

  Satisfactory

  Unsatisfactory

  N/A

• Check springs charged where appropriate

  Satisfactory

  Unsatisfactory

  N/A

• Check bushing oil levels

  Satisfactory

  Unsatisfactory

  N/A

• Check correct engagement of isolators

  Satisfactory

  Unsatisfactory

  N/A

• Check for damage and signs of arcing or local heating to insulators, connections and contacts

  Yes

  No

  N/A

• Check pressure gauges and SF6 indicators

  Safe

  At Risk

  N/A

• Check SF6 pressure pump running time and number of operations

  Yes

  No

  N/A

• Check surge arrester connections and diaphragm

  Satisfactory

  Unsatisfactory

  N/A

• Check circuit labels, phase plates and locks

  Satisfactory

  Unsatisfactory

  N/A

• Check main and earthing connections

  Good

  Fair

  Poor

  N/A

• Report on excessive rust / need for repainting

  Yes

  No

  N/A

• Check mechanism boxes, marshalling kiosks, etc. Check fit of doors and covers, operation of heaters. Check heaters

  Satisfactory

  Unsatisfactory

  N/A

• Record no of ops & shots in hand (if applicable)

• Check Metka EGN ownership sign fitted to all Metka EGN switchgear in sites containing customer's switchgear

  Yes

  No

  N/A

• Ensure warning notice fitted in switchrooms with vacuum switchgear

  Yes

  No

  N/A

CONTROL AND RELAY PANELS

• Check for flag operation; log and reset

  Yes

  No

  N/A

• Check voltmeters. ammeters all working

  Yes

  No

  N/A

• Check / replace indication lamps

  Yes

  No

  N/A

• Check healthy trip circuits

  Yes

  No

  N/A

• Check inside for verdigris or dampness

  Good

  Fair

  Poor

  N/A

• Check heaters

  Yes

  No

  N/A

BATTERIES

• Inspect and check operation of battery charger

  Yes

  No

  N/A

• Test Batteries

  Pass

  Fail

  N/A

• Number of Failed Cells and cell type

LV AC BOARDS

• Check for local heating / discharge

  Satisfactory

  Unsatisfactory

  N/A

GENERAL

• Check general condition and paintwork / corrosion

  Good

  Fair

  Poor

  N/A

• Check Indoor Switchgear for Partial Discharge

  Pass

  Fail

  N/A

NERs and NEUTRAL SWITCHGEAR

• Check for internal debris/dirt

  Yes

  No

  N/A

• Check heater operation (if present)

  Yes

  No

  N/A

• Report missing weather shield (if present)

  Yes

  No

  N/A

• lubricate linkages/hinges

  Yes

  No

  N/A

• Check general condition, correct locks fitted, indicator glasses not cracked, crazed or discoloured, labels fitted and legible etc

  Yes

  No

  N/A

• Report on excessive rust / need for repainting

  Yes

  No

  N/A

• Check earthing

  Yes

  No

  N/A

• Check for oil and compound leaks

  Yes

  No

  N/A

TRANSFORMERS, AUXILIARY TRANSFORMERS, REGULATORS, REACTORS

• Record tapchanger counter readings, write in logbook

• Recorded in Log book

  Yes

  No

  N/A

• Check tap position indicator indicating correctly, Check off load t/c are locked off

  Yes

  No

  N/A

• Check winding temperature indicators record maximum readings

• Check oil temperature indicators, record maximum readings

• Recorded in Log book?

  Yes

  No

  N/A

• Check silica Gel

  Good

  Fair

  Poor

  N/A

• Silica Gel Replaced?

  Yes

  No

  N/A

• Check operation of pumps and fans

  Satisfactory

  Unsatisfactory

  N/A

• Check for oil and compound leaks

  Satisfactory

  Unsatisfactory

  N/A

• Check transformer, tapchanger and bushing oil levels, transparency of site glasses

  Satisfactory

  Unsatisfactory

  N/A

• Check Buchholz for gas accumulation

  Satisfactory

  Unsatisfactory

  N/A

• Check insulators or arcing horns for damage, signs of arcing or local heating

  Satisfactory

  Unsatisfactory

  N/A

• Check explosion diaphragm, Qualitrols & PRV's for signs of operation

  Good

  Fair

  Poor

  N/A

• If necessary, lift out sump pump assembly, clean probes. Clean debris from pump inlet. Dispose of accumulated oil; investigate source. Check pump working. Check alarms

  Satisfactory

  Unsatisfactory

  N/A

• Check bund walls intact and generally free from water

  Good

  Fair

  Poor

  N/A

• Record transformer and feeder MDI & reset

  Yes

  No

  N/A

• Report on excessive rust / need for repainting

  Yes

  No

  N/A

• Check for abnormal levels of noise

  Satisfactory

  Unsatisfactory

  N/A

CABLE SEALING ENDS

• Check insulators, oil levels, oil leaks

  Satisfactory

  Unsatisfactory

  N/A

• Check general condition including cleating

  Satisfactory

  Unsatisfactory

  N/A

• Check earthing

  Satisfactory

  Unsatisfactory

  N/A

• Check labelling / phase plates

  Satisfactory

  Unsatisfactory

  N/A

Thermography

• Use TIC to check for hotspots on transformer cable connections

  Satisfactory

  Unsatisfactory

  N/A

• Use TIC to check for hotspots on Busbar connections

  Satisfactory

  Unsatisfactory

  N/A

• Use TIC to check for hotspots on switchgear

  Satisfactory

  Unsatisfactory

  N/A

SITE

• Check stored materials do not restrict access or compromise security or safety clearances

  Satisfactory

  Unsatisfactory

  N/A

• Complete security inspection. Check walls, fences, windows etc

  Satisfactory

  Unsatisfactory

  N/A

• Check for rubbish, weeds, etc.; remove or report

  Satisfactory

  Unsatisfactory

  N/A

• Report need for grass cutting

  Yes

  No

  N/A

• Check floodlights

  Satisfactory

  Unsatisfactory

  N/A

• Check ditches

  Satisfactory

  Unsatisfactory

  N/A

BUILDINGS

• Check operation of all doors (main and emergency). Check secure

  Satisfactory

  Unsatisfactory

  N/A

• Check for signs of cracking to brickwork, loose masonry etc

  Satisfactory

  Unsatisfactory

  N/A

• Visually check condition of pitched roofs (from ground level), missing tiles, etc

  Satisfactory

  Unsatisfactory

  N/A

• Check gutters, downpipes and gulleys

  Satisfactory

  Unsatisfactory

  N/A

• Check for water leaks internal to buildings

  Satisfactory

  Unsatisfactory

  N/A

• Check any windows for breakages water ingress or security

  Satisfactory

  Unsatisfactory

  N/A

• Check lighting (main and emergency)

  Satisfactory

  Unsatisfactory

  N/A

• Replace any defective bulbs or tubes

  Satisfactory

  Unsatisfactory

  N/A

• Check all heaters are working and the substation environment is adequate

  Satisfactory

  Unsatisfactory

  N/A

• Check telephone operates correctly ( if present)

  Yes

  No

  N/A

• Check trench covers and access covers are in place, complete and level. Check for water or vermin infestation

  Satisfactory

  Unsatisfactory

  N/A

• Check basements for ingress of water and correct operation of water pump

  Satisfactory

  Unsatisfactory

  N/A

• Check plumbing, toilet, wash basins, toilet paper, brush, cleaner, soap, paper towels and water heater. Replace sundries

  Good

  Fair

  Poor

  N/A

STEPS AND LADDERS

• Check tags. Inspect and date if out of date by next inspection

  Compliant

  Non-Compliant

  N/A

• Check locked secure

  Yes

  No

  N/A

• Report if missing

  Yes

  No

  N/A

GENERAL

• Inspection recorded in site log book?

  Yes

  No

  N/A

• Sign

  Sign