OVERHEAD LINE RENEWING APPARATUS AND OVERHEAD LINE RENEWING METHOD

PROBLEM TO BE SOLVED: To provide overhead line renewing method and an overhead line renewing apparatus in which an existent overhead line can be renewed with a new line while preventing asbestos from being released from the existent overhead line.SOLUTION: In an overhead line renewing apparatus, a clamper 3 for holding an overhead line 103 in which an existent overhead line 103a and a new overhead line 103b are connected in series, and a clamper 1 for holding a supporting rope 101 disposed in parallel with the overhead line 103 are concatenated by a strap 2, respectively, and by drawing the supporting rope 101, the existent overhead line 103a is renewed with the new overhead line 103b. The overhead line renewing apparatus includes: a roller 10 on which the supporting rope 101 is placed so as to move forward in a length direction; a frame 20 hung from a support structure 200 and provided with an opening 22 for surrounding the roller 10, putting the supporting rope 101 in and out in a diameter direction and passing the strap 2 therethrough; and a guide member 30 fixed to the frame 20 for guiding the strap 2 toward the opening 22 of the frame 20.