Single-insulator ice-melting earthing knife switch

Abstract

The invention discloses a single-insulator ice-melting earthing knife switch. The single-insulator ice-melting earthing knife switch is characterized in that the single-insulator ice-melting earthing knife switch comprises an upper clamp plate, an upper fixture, an equipment wire clamp, an insulator, a knife switch, a baseboard, a connection support, a C-shaped fixation clamp and a clamp bolt; one end of the baseboard is provided with the insulator, the other end of the baseboard is provided with the connection support, the upper portion of the insulator is provided with the upper clamp plate, the upper clamp plate is provided with the equipment wire clamp, the upper portion of the upper clamp plate is provided with the upper fixture, one end of the knife switch is in movable hinge joint with the connection support through a shaft pin, the other end of the knife switch is in matching connection with the upper fixture, the C-shaped fixation clamp is fixedly installed on the baseboard, and the C-shaped fixation clamp is provided with the clamp bolt. The single-insulator ice-melting earthing knife switch of the invention has advantages, such as novel design, simple structure, good conductive performance, superior anti-corrosion performance, convenient operation and maintenance, etc.

Description

technical field [0001] The invention relates to a reliable grounding device for an optical fiber composite overhead ground wire (OPGW), which is a DC single insulator ice-melting grounding knife switch used for reliable insulation after the line is covered with ice. Background technique [0002] my country is one of the countries with serious icing on transmission lines. The hazards of icing on lines are mainly manifested in tower collapse, insulator flashover, wire galloping, tripping, etc. In severe cases, it may even lead to power grid paralysis, causing great losses to national production and people's lives. [0003] However, due to the limited technical level for a long time, the OPGW optical cable cannot be completely insulated from the iron tower, so it is difficult to achieve ice melting. At present, the tower-by-tower grounding method is still adopted. After the ice is covered, the overhead ground wire will slip, causing the line to trip out of service, and when th...

AI Technical Summary

Problems solved by technology

The hazards of icing lines are mainly manifested in tower collapse, insulator flashover, wire galloping, tripping, etc. In severe cases, it may even lead to power grid paralysis, causing great losses to national production and people's lives

[0003] However, due to the limited technical level for a long time, the OPGW optical cable cannot be completely insulated from the iron tower, so it is difficult to achieve ice melting

At present, the tower-by-tower grounding method is still adopted. After the ice is covered, the overhead ground wire will slip, causing the line to trip out of service, and when the ice and snow are severe, the line will be disconnected and the tower will fall. The safe operation of the power grid will not be reliable. Assure

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