INJURED EE ENTERED THE EAST SIDE DOOR OF THE RAW STORAGE BUILDING TO ASK A CO-WORKER A QUESTION.BETWEEN HIM & ANOTHER WORKER IS A CABLE TRAY THAT KEEPS THE POWER CABLE TO THE RECLAIMER FROM GE TTING TANGLED. THE CABLE TRAY IS AN ANGLE IRON STRUCTURE & IT ROLLS ON A PAIR OF PARALLEL RAILS WITH WHEELS ON THE BOTTOM OF THE TRAY. IT CREEPS ALONG, EE PLACED FOOT ON RAIL, SEVERE CONTUSIO