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Turnkey trifurcated main fan station commissioned at Lonmin’s safety shaft

BBE Projects has just commissioned its second main fan station turnkey contract. The contract, awarded by Lonmin Platinum for its Saffy Shaft, included earthworks and civils, building works, ducting and mechanicals, electrical equipment (MV and LV), as well as instrumentation and control for a trifurcated fan station.  BBE replaced two temporary fans on the shaft with two permanent centrifugal fans, each 90 m3/s at 5 kPa, and installed ducting that makes provision for a third fan or an emergency diesel standby fan.  Construction took place while the temporary fans were in operation and change-over to the new fans was achieved in a one-day shutdown during a weekend.