| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cable passing method when a cable is connected from a main conduit to a user facility via a branch conduit line. SOLUTION: This is a cable passing method for laying a cable into a main conduit P and a branch conduit line FP, connected to the main conduit P and having a smaller diameter than that of the main conduit. To the tip of a cable C to be laid, a parachute Pa is connected, and to the end part of the main conduit P at the side where the cable C is laid, a blower B is connected. By driving the blower B in the closed state of the end of the opposite side to the one of the main conduit P to which the blower B is connected, the tip of the cable C where the parachute Pa is linked is inserted with the parachute Pa ahead from the end of the branch conduit FP of the opposite side to the one connected to the main conduit P.</p> |
