6:12am power had to shut off to #30 & 31 hoist to isolate if from w-2 power cable (Barge pump-Batch plant-see pump). Called MSHA @6:20 to report off and why. Isolated hoist power and called MSHA back at 7:10 to explain completed plant repairers to w-2 cable a approx 8:50am and poser was restored. MSHA inspector was on site at time of repair