POLE FOR OVERHEAD TRANSMISSION LINE CABLE SUSPENSION Russian patent published in 2007 - IPC E04H12/00 

FIELD: power industry, particularly to repair overhead transmission lines, namely to replace damaged poles by new quickly-assembled ones.

SUBSTANCE: overhead transmission line pole comprises at least one free-standing post with cross-arms connected thereto. Post is composed of telescopically butt-joined conical sections in post height direction. The sections are connected by inserting narrow end of one conical section in wide end of another one with predetermined force. Butt-join length l_j of pole sections to be connected is selected from (1.75÷1.85)×d_sj. Section taper is within (0.015÷0.035). Force N necessary for prior telescopic section butt-joint compression is calculated from the following equation: N=5.0×Q×l_j/d_sj, where Q is crosscutting force, kgf, l_j - section joint length, cm, d_sj is mean cross-sectional diameter of pole sections to be connected with each other in section joint area, cm.

EFFECT: increased operational reliability of overhead transmission line poles, decreased maintenance time and elimination of temporary pole construction.

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