EE WAS ASKED BY THE ON-SITE ELEC. CONTRACTOR(SHELLEY ELECTRIC) TO ASSIST THE ELECTRICIANS REMOVE 3 DISCONNECT PANELS FROM WALL OF PUMPHOUSE. AS THEY POSITIONED THEMSELVES TO REMOVE & LOWER THE WEST PANEL, THE CENTER PANEL CAME UNSECURED FROWALL DROPPING ON EE'S LEFT FOOT BREAKING BONE INLEFT FOOT WHICH CONNECTS TO THE LITTLE TOE. STEEL-TOED BOOTS PROTECTED THE TOES FROM BEING BROKE