Material and preparation method of damping spacer rubber parts for UHV transmission lines

Abstract

The invention discloses a material of a rubber part of a damping spacer for an ultra-high voltage transmission line and a preparation method thereof, and belongs to the fields of rubber materials and the preparation method thereof. The material comprises the following components in percentages by weight: 50-55% of ethylene propylene diene rubber, 27-32% of high abrasion-resistant carbon black, 5-10% of acetylene carbon black, 5-8% of naphthenic oil, 2.5-3.5% of zinc oxide, 0.3-0.7% of ultraviolet light absorber, 1-1.5% of dicumyl peroxide, 0.2-0.5% of sulfur and 0.1-0.3% of tetramethylthiuram disulfide. The preparation method comprises the following preparation steps of mixing a master batch, sulphureting the master batch, forming and vulcanizing. The prepared rubber part of the damping spacer for the ultra-high voltage transmission line has the advantages of excellent physical and mechanical properties, excellent weather resistance, ozone resistance and ultraviolet radiation aging resistance performance, higher electrical conductivity, moderate damping property, high elasticity and low compression permanent deformation performance. The service life of a product can reach 25-30 years.

Description

technical field [0001] The invention belongs to the field of rubber materials and preparation methods thereof, and more specifically relates to a material based on EPDM rubber, which can be used for rubber parts of damping spacers for UHV transmission lines, and a preparation method thereof. Background technique [0002] In the construction of high-voltage transmission lines, the split conductors of the transmission line must be separated by spacers to effectively prevent each other from whipping. However, the split wires separated by the spacer will cause wire fatigue due to the vibration caused by the breeze and the shock of the span caused by the strong wind, the loosening of the spacer fastener, and the wear of the wire, which seriously threatens its safe operation. In actual application, damping and vibration reduction measures are taken between the spacer rod and the wire to control the amplitude of movement within the allowable range. The rubber part of the damping s...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the poor overall performance of the damping spacer rubber parts in the prior art, especially the problem that corona discharge will be generated under the UHV electric field, which affects the safe use of wires, and provides a UHV transmission line. The material of the damping spacer rubber part and its preparation method can effectively solve the problem of corona discharge of the damping spacer rubber part under an ultra-high voltage electric field by adopting the technical scheme of the present invention

Images