EE UNPLUGGED A SHUTTLE CAR CATHEAD FROM THE SECTION POWER CENTER BUT DID NOT TRIP THE BREAKER. WHEN HE ATTEMPTED TO PLUG ANOTHER CATHEAD INTO THE SAME RECEPTACLE THE CATHEAD EXPLODED. EE SUSTAINED SUPERFICIAL FLASH BURNS TO HIS FACEAND ARMS. SAFETY GLASSED AND GLOVES WERE WORN PREVENTING INJURY TO EYES AND HANDS.