OPTICAL CABLE CONNECTING UNIT, LINEAR CONNECTING PART OF OPTICAL FIBER COMPOSITE POWER CABLE INCLUDING THE SAME AND CONNECTING METHOD THEREOF

摘要

The present invention relates to an optical connection unit which is efficiently performed to monitor and prevent failure in an underground distribution line by an optical power composite cable and which can ensure the airtightness with a simple structure, a linear connection part of the optical power composite cable, and a method of connecting the optical power composite cable.