Stringing method for erecting all-dielectric self-supporting optical cable based on double-spliced angle steel main material iron tower

Abstract

The invention provides a stringing method for erecting an all-dielectric self-supporting optical cable based on a double-spliced angle steel main material iron tower. The stringing method comprises the following steps: S1, selecting a hanging point position of the all-dielectric self-supporting optical cable; S2, selecting a special ADSS clamping plate; S3, hanging the all-dielectric self-supporting optical cable on the special ADSS clamping plate so that the problems of overload of an iron tower and field intensity distribution of an electromagnetic field are solved; S4, enabling the length of the round-head flat steel of the special ADSS clamping plate to be greater than the length of an iron tower drainage wire insulator, and solving a condition that an optical cable collides with a drainage wire wind pendulum; S5, calculating the maximum critical sag value of the strain section optical cable; S6, checking the load of the iron tower; S7, if the iron tower load strength cannot be met, the hanging point selection position of the optical cable needs to be improved on the premise that the step 01 is met, and the sag is adjusted and increased; S8, if the iron tower load is met, the sag is adjusted within the range. The hanging problem of the cross-shaped double-spliced angle steel main material iron tower can be solved through the special ADSS clamping plates.

Description

technical field [0001] The invention relates to the technical field of arc sag erection of all-dielectric self-supporting optical cable (ADSS) power transmission lines, in particular to the all-dielectric self-supporting erection of cross-type double angle steel main material terminal towers for 110kV-500kV power transmission lines of various voltage levels A method of erecting full-dielectric self-supporting optical cables based on double-split angle steel main material iron towers designed for optical cables. Background technique [0002] With the rapid development of my country's power communication network construction, the all-dielectric self-supporting optical cable (ADSS) can solve some problems such as large spans, excessive sag of conductors, etc. 110kV and above voltage level lines cannot be blacked out, construction and erection of OPGW and the advantages of special circumstances such as insufficient number of fiber optic cables in the existing line iron tower grou...

AI Technical Summary

Problems solved by technology

[0009] Step S2, by selecting the special ADSS plywood of the cross-shaped double-splitting angle steel main material tower, solving the problem of hanging the ADSS on the cross-shaped double-spanning angle steel main material iron tower;

Images