Financial

1
ISLINGTON 220KV NEW LINE BAY PROJECT By Michael
Yang
Project Background To install a new 220kV New
Line Bay at Islington Substation as part of the
ISL-KIK 3rd cct upgrade project. The overall
project involved the installation of a third
circuit that runs from Islington to Kikiwa
substation to provide extra thermal capacity when
the load is high and an extra security in case of
unforced outages. Islington substation project
involved the installation and commisioning of
disconnectors, circuit breakers, current
transformer, gantries etc and the connection to
the existing 220kv network at Islington
substation.

• Achievements
• No Delays in commissioning of equipments
  although a majority of the client supplied items
  were delayed alternatives were found in time and
  shipped to site for use.
• Minimum time was used by the crew to construct
  the new line bay.

• Communications
• Follow structure The client (Transpower NZ Ltd)
  assigned a representative (Mitton Consulting) to
  communicate to the contractor (Transfield
  Services NZ Ltd). This structure was altered in
  several occasions to allow closer monitoring of
  materials supplied by client.
• In one case the client was mis-informed in
  regards to a delivery problem on a client
  supplied item, this caused a variation cost which
  had to be absorbed by Transfield Services.

• Financial
• Cost Monitoring - Contract Progress Report
• Used for forecasting the final margin of the
  project by forecasting the costs to come.
• Unaccounted costs A Variations Spreadsheet was
  created to capture the extra costs that were not
  part of the original contract. Most were
  approved but some could not.
• Project suffered a loss of 3.4k due to multiple
  reasons, main one due to the unaccounted travel
  and accommodation costs by the crew.

• Safety
• Many tools were used on the job to ensure safety
  of workers including Job Risk Analysis, Safety
  plan, tailgate. However this did not prevent the
  injury of an employee who was injured by a
  lifting equipment.
• Employee was taken to hospital by ambulance, but
  was discharged later on the same night.