Shielding insulation isolation 10kV overhead insulation line lightning-stroke-breaking-prevention device

Abstract

The invention relates to a shielding, insulation and isolation 10kV overhead insulation line lightning-protection line-breaking device which comprises a titanium alloy lightning arrester, an insulation shielding down lead and an intelligent lightning counter, an isolation support cap is arranged below the titanium alloy lightning arrester, an insulation supporting rod is arranged below the isolation support cap, a first connecting assembly is arranged below the insulation supporting rod, and a second connecting assembly is arranged below the first connecting assembly. A second connecting assembly is arranged on the left side of the first connecting assembly, two mounting suites are evenly arranged below the first connecting assembly, a second connecting end is arranged at the bottom of the insulating supporting rod, a second inner pin hole is formed in the left side of the exterior of the second connecting end, and a voltage stress control upper terminal is arranged below the second connecting end. An insulation shielding down lead is arranged below the voltage stress control upper terminal, a connecting terminal is arranged below the insulation shielding down lead, a connector is arranged below the connecting terminal, and a connecting piece is arranged below the connector; the invention has the advantages of non-contact lightning protection, active interception protection, solving of the problem of line breakage caused by lightning stroke, and reduction of potential safety hazards.

Description

technical field [0001] The invention belongs to the technical field of overhead power transmission lines, and in particular relates to a lightning strike and disconnection protection device for shielding, insulating and isolating 10kV overhead insulated lines. Background technique [0002] With the development of science and technology and economy, users' requirements for power quality and power supply reliability are also increasing. In order to ensure the reliable operation of 10kV overhead lines, at present, China's 10kV overhead lines have changed from bare wires to insulated wires. It has many advantages such as good insulation performance, can reduce the distance between lines, anti-corrosion, simplified structure, penetrates into the load center, is conducive to urban greening, reduces line corridors, and prolongs the maintenance cycle, which makes the safety of overhead lines significantly improved. , lightning is a common and complex phenomenon in nature, which may ...

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology and economy, users' requirements for power quality and power supply reliability are also increasing. In order to ensure the reliable operation of 10kV overhead lines, at present, China's 10kV overhead lines have changed from bare wires to insulated wires. It has many advantages such as good insulation performance, can reduce the distance between lines, anti-corrosion, simplified structure, penetrates into the load center, is conducive to urban greening, reduces line corridors, and prolongs the maintenance cycle, which makes the safety of overhead lines significantly improved. , lightning is a common and complex phenomenon in nature, which may bring many hazards to human production and life. The entire duration of lightning is generally about 20ms to 1s, and the average duration is 0.2s. , the path is long and most of them are in open areas, lightning accidents are very prone to occur in the annual thunder season, and the resulting line disconnection and tripping accidents are very common, most of which occur in two-phase or three-phase insulated lines, and at the same time Accompanied by the occurrence of insulator flashover, in some open areas, even multiple lightning faults occurred on one line, which is not conducive to the safe and stable operation of overhead distribution lines; therefore, it provides a non-contact lightning protection, active interception It is very necessary to protect, solve the problem of lightning disconnection, and reduce potential safety hazards by shielding and insulating 10kV overhead insulation lines.

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