EE WAS REPLACING WIRING THAT HAD BURNED INTO. THE EE HAD CHECKED THE POWER TO SEE IF IT WAS SAFE TO WORK ONT HE BREAKER BOX THAT MORNING. HE AND OTHER EE WERE REPLAICNG THE WIRING AND CONDUIT ON FP-30 THIS WAS GOING ON ALL DAY. AROUND 6:00PM THE EE WAS ATTEMPTING TO LOOSEN A BOLT WHEN HE RECEIVED FLASH BURNS TO BOTH HANDS EE WAS TAKEN TO HOSPITAL FOR TREATMENT OF 2ND AND 3RD DEGREE