METHOD OF TENSIONING OVERHEAD TRANSMISSION LINE, STRAIN INSULATOR DEVICE FOR MUTICONDUCTORS USED FOR TIGHTENING METHOD AND BOLT TYPE STRAIN CLAMP

摘要

PROBLEM TO BE SOLVED: To facilitate the tensioning work of an overhead transmission line. ;SOLUTION: A blot type strain clamp 28 is mounted in the strain clamp mounting position of left and right electric wires 25 which are strung, and a tensioning metal wheel 33 equipped between a tightening metal wheel mounting part 61 on the jumper side of the bolt type strain clamp 28 and the triangular yoke 3 of a four-conductor triple balance yoke type strain insulator device 1 is shortened. When a strain clamp connection metal fitting 21 at the tip of the four-conductor triple balance yoke type strain insulator device 1 in connected on the span side of the bolt type strain clamp 28, the tensioning metal wheel 33 is loosened and the connection of its one end is changed over to a sag adjusting metal fitting 16 from the bolt type strain clamp 28 to shorten the tensioning metal wheel 33, thereby adjusting the sag of an electric wire.;COPYRIGHT: (C)1997,JPO