Contraction special-shaped optical fibre composite aerial ground line and method of production

Abstract

The invention is a tightening profiled OPGW and production method, relating to a compression structure lightning OPGW and production process method. The structure includes a number of fibers, fiber ointment, stainless steel tube, anticorrosion cable cream, tightening profiled aluminum clad steel wire; in stainless steel tube installed a number of fibers, and filled with fiber ointment to compose of optical module, and outside the optical module filled anticorrosion cable cream and twisted tightening profiled aluminum clad steel wire to form inner layer; around the tightening profiled aluminum clad steel wire outer layer, wired at least one tightening profiled aluminum clad steel wire, or at least one round aluminum clad steel wire to form outer layer. The production method: install the stainless steel tube on the center line shelf, through compression molding, tightening to fan shape, and then twisted. According to the OPGW structure demand, twisted the tightening profiled aluminum clad steel wire or round aluminum clad steel wire required by outer layer, produce the tightening profiled OPGW.

Description

technical field [0001] The invention relates to a compact special-shaped optical fiber composite overhead ground wire (OPGW) and a production method thereof, which relate to a lightning-resistant optical fiber composite overhead ground wire (OPGW) with a compact structure and a production process. This lightning-resistant OPGW can be applied to power system communications in U / UHV power grids, areas with high thunderstorms, and "distressed" areas of line reconstruction. Background technique [0002] In recent years, the optical fiber composite overhead ground wire (OPGW) used in my country's ultra-high voltage transmission lines has frequently experienced lightning strikes and broken strands, which poses a great threat to the safe operation and long-term reliability of the power grid, optical transmission communication, and protection channels. Therefore, OPGW is required to have a strong Lightning performance is becoming more and more important. At present, it has become a ...

AI Technical Summary

Problems solved by technology

However, many transmission lines have strict restrictions and requirements on the outer diameter and weight of OPGW due to the mechanical characteristics of tension and sag, and the short-circuit current characteristics cannot meet the requirements. There is a certain contradiction between short circuit and lightning resistance characteristics, so it is necessary to adjust the structure of OPGW to meet the coordination and unification of mechanical and electrical performance

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