| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable the attachment work to a jumper clamp for earth wire of a jumper wire at an elevation to be performed even with only one worker. SOLUTION: This clamp catches the jumper wire part of an earth wire with a pair of catch pieces 10a and 10b, and also the catch pieces 10a and 10b in a pair are put on the upper piece 1b of the frame 1 provided at the pylon of a transmission line, and the top piece 1b and the catch pieces 10a and 10b in a pair are fixed by the bolts 3 inserted upward and the nuts 6 screwed on the bolts 3. In this case, this includes the upper piece 1b provided with a slit 2a being made so that the prismatic part 3b provided at the base of the head of the bolt 3 can be inserted inward direction from the periphery, and a retaining piece 4 being provided below the upper piece 1b so that the head of the bolt 3 may be placed when the prismatic part of the bolt 3 is positioned in the slit 2a.</p> |
