Rising Busbar Replacement in an Occupied Office Building

The Task

After a power failure on the rising busbar in a five-storey West End office building, the landlord asked us to replace the busbar. Several floors were occupied and a busy restaurant traded seven days a week on the ground floor and basement, so downtime had to be kept to a minimum.

The Outcome

In phase one we installed temporary cabling from a 2nd floor panel board to each tenant’s distribution board, and from the basement busbar feeder unit. Tenants were switched over during a single night-time isolation after the restaurant closed. The restaurant and the landlord’s services never lost power.

The old busbar was then stripped out floor by floor, with early-morning access to the restaurant areas before opening.

In phase two the new manufacturer-supplied busbar was installed, each tenant was reconnected, and the installation was tested and certified.

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