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2 I/E Technicians were performing voltage measurements for phasing verification at a 480 VAC Switchgear after energizing its repaired 2 MVA Transformer. The measurements were being made between the energized transformer secondary connection at the switchgear and the switchgear bus that was energized through a 480 VAC Tie from another Substation.
AS PART OF THE PLANNED WORK THE SCI CREW HAD THEOVERHEAD CRANE ENERGIZED TO ALLOW ITS USE TO LOWER MATERIAL FROM THE TOP FLOOR TO THE GROUNDFLOOR AFTER LOWERING THE MATERIAL THE CREW TOOK A BREAK AFTER THE BREAK, THE CREW RESUMED DEMOLITION OF THE DUCTWORK IN THE VICINITY OF THE CRANES POWER BUS RAILS WITHOUT THE DENERGIZING THE BUS DURING THIS DEMOLITION WORK, EE MADE CONTACT A BR
EE WAS WORKING ON TOWER G5, IN A BUCKET, TO GROUND A 3-PHASE LINE. HE TOURCHED A 3" ANGLE BAR WHICH HE THOUGHT WAS PART OF THE STRUCTURE BUT WAS A BUS BAR. A BALL OF FLAME CAME OUT, BURNING HI S HEAD, NECK AND ARM. HE REPORTED TO THE PLANT DISPENSARY WHERE HE WAS TREATED FOR SECOND DEGREE BURNS TO HIS RIGHT ARM AND ELBOW.
EE WAS TROUBLESHOOTING A 480 V SWITCHBOX. HE WAS LIFTING THE DOOR COVER OFF THE BOX WITH INSULATED CHANNEL LOCK PLIERS WHEN THE COVER BROKE LOOSE AND THE TOP OF THE LID FELL ACROSS THE FUSE BU S AND CAUSED A FLASH RESULTING IN 2ND DEGREE BURN TO ABOUT 1/2 OF THE BACK OF HIS RIGHT HAND. THE PLASTIC GUIDES AT THE HINGE POINTS WERE DETERIORATED DUE TO AGE, PLANT MATERIALS AND ENVIRONM
EE WAS AT THE MOTOR CONTROL CENTER CHECKING FUSES. HE TESTED THEM AND THE TESTER BLEW UP. THERE ARE 1,2,3 BURNS ON HIS BODY HE WAS TRANSPORTED BY SMH AMBULANCE. HE WAS USING A 600 V TESTER ON A 4160 V SWITCHGEAR. 3 BURNS TO HIS FOREARMS ANDHAND.
EMPLOYEE WAS WALKING PAST POWERHOUSE WHEN LIGHTENING STRUCK THE POWERHOUSE. THE EMPLOYEE WAS STANDING IN ANKLE DEEP WATER AT THE TIME LIGHTENING STRUCK.