Re-covering obtaining construction method null of high tension wire for railroad

摘要

PURPOSE: To provide a highly safe and efficient replacement method for a railway high voltage cable even during the traveling time of an electric train. ;CONSTITUTION: A new cable Wn is extended and an old cable Wa is removed with them supported by plural moving metallic wheels 20 which are developed by using the old cable Wa as a supporting cable for extending the new cable Wn and a new cable for the removal of an old cable respectively. Besides, the old cable and the new cable are maintained so as to be replaced with a mid supporter 1 by using the old and new cable as a supporting cable.;COPYRIGHT: (C)1993,JPO&Japio