CABLE INSTALLING PENETRATION AND METHOD OF INSTALLING CABLE USING THE SAME

摘要

PURPOSE: A through hole for cable installation and a cable installation method using the same are provided to prevent damage to a cable by installing the cable through the wall of a structure. CONSTITUTION: A main through hole(110) is installed in a wall(10). A first cable is installed in the main through hole. A subsidiary through hole(120) is installed in the main through hole. A second cable is additionally installed in the subsidiary cable. The main through hole and the subsidiary through hole are sealed by different sealing materials.