In order to excavate and expose (non-energised) 11kV cables at Limmo we hired a vacuum excavator rather than using hand tools.
The work required was to remove sand from a concrete pit to allow operatives to access the pit and work on the cables.
The Vac-Ex uses an air pick to disturb the sand and this sand is then removed by suction into the unit.
Entry submitted by Costain/Skanska JV
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