CWC, a leader in high rise building construction, has built offices for a North
American bank, within a major new office tower. The requirements for their client were critical in respect of constancy of power supply: In the world of high finance, loss of power means loss of profit—without power a bank cannot trade.
The plant room is on floor 14, which added its own logistical challenges in
planning the installation: The programme of site deliveries had to be closely
coordinated with site tower crane availability.
Due to the position of the plant room in the building, we were contracted to
include a specialist floating floor design to limit noise and vibration transfer to
the rest of the building structure.
The design requirements of the control system were particularly stringent, with
the designers requiring a significant level of inbuilt redundancy. The Finning
LIMA plc system is perfect for such a requirement: its configuration is easily
scalable from a simple generator control panel, through to a full control suite with
dual redundant processors and input/output cards.
Finning provided a turnkey project solution including 4 CAT 3516B 2000
kVA 11kV Generator sets, complete with a full acoustic and ventilation pack-
age. Plant room fuel distribution and an intelligent IPC (Industrial Programmable Control) based control system which not only operates the generator sets but also monitors and controls a significant number of circuit breakers around the building. This control system is particularly impressive.
Being on the 14th floor this was no ordinary project due to the logistics associ-
ated with the installation. Peculiarities of this contract demanded tight project
management and technical skills, for example a need to crane equipment into a space with only 5cm clearance all round.
Environmental considerations were obviously very important.
The weights and size of the generators were 18,000kg each and Finning had to
meet defined noise levels in order to comply with legislation.
CWC's project manager Steve Edouin Says: "We need complete confidence in our suppliers, and awarded the contract to Finning on the basis of the Cat equipment’s higher specification, and their competitive pricing. Our view was that they understood our brief, and went the distance to meet all our requirements. Certainly their good experience in power generation made this installation a success."