| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce slackness in laying (including transferring )electric cables on steel towers. <P>SOLUTION: In a transferring method of a power transmission line 11, a main cable 31 is stretched between the destination steel towers 16a, 16b. Then, a sheave 37 is suspended from each hanging sheave 33 by hoisting ropes 34 hooked on each of the predetermined number of the hanging sheaves 33 suspended from the main cable 31 at prescribed intervals. At least one end of the hoisting ropes 34 is made drawable. The sheave 37 holds each part of the transferred electric cable 11. By adjusting the pulling state of the hoisting ropes 34, the positions of the sheaves 37 in the up and down directions are adjusted. Furthermore, the hanging sheaves 33 are each provided with two sheaves. The sheave 37 are each suspended by a portion between the two sheaves of each hoisting rope 34 hooked on the two pulleys of each hanging sheaves 33. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
