Keep power problems from becoming safety problems.

A deep mine depends on continuous electrical supply for primary ventilation, dewatering and hoisting. Losing ventilation begins a countdown measured in tens of minutes before the workings become unsafe. Dewatering failure floods the lowest levels first — the most expensive part of the mine to recover. Yet the substations, transformers and switchgear delivering that power sit in the harshest environment in industry: humid, dust-laden, vibrating, and often kilometres from the nearest engineer.