A grounding wire device with an isolating knife switch and its application method
A technology for isolating knife gates and grounding wires. It is used in the configuration of grounding wires, overhead line/cable equipment, contact drive mechanisms, etc. It can solve problems such as live electricity, life safety threats to construction workers, large short-circuit current and arc light.
Active Publication Date: 2018-01-02
STATE GRID JIBEI ELECTRIC POWER CO LTD TANGSHAN POWER SUPPLY CO +1
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the staff has checked the electricity before hanging the ground wire, if the line is charged suddenly after the power inspection, or there will be a strong induced voltage when the lines are parallel or cross other high-voltage lines, it is quite necessary to hang the ground wire at this time. Because the line is directly charged and short-circuited and grounded, it will cause a large short-circuit current and arc light, and the life safety of construction workers will be greatly threatened.
Method used
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[0025] The present invention will be further explained below in conjunction with the drawings and embodiments:
[0026] A grounding wire device with isolation switch, including grounding pole 1, grounding wire 2, A-phase grounding wire 3, B-phase grounding wire 4, C-phase grounding wire 5, grounding isolation switch, and insulating sling 10 , Insulated drawstring 19, ground wire hook 20, ground wire insulated handle 21, wire 23 and pole 24;
[0027] The ground isolation knife switch includes an insulating column 7, an isolation knife switch box 8, a lifting ring 9, a static contact 11, a moving knife 12, a rotating shaft 13, a pressure rod 14, a pressure spring 15, a clasp 16, and closing Pull ring 17, terminal 18 and spring fixing block 25;
[0028] Insulating column 7, lifting ring 9, static contact 11, movable contact knife 12, rotating shaft 13, pressure rod 14, pressure spring 15, clasp 16, closing pull ring 17, terminal 18 and spring fixing block 25 are all set On the isolati...
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The invention relates to a grounding wire device with an isolation switch and a method for using the same, belonging to the technical field of electric construction safety tools. The technical solution is: the device installs a ground isolation switch between the ground wire and the ground connection wire of each phase conductor. When the ground wire is connected, the isolation switch is in a separated state. The pull wire remotely closes the isolation switch. The positive effect of the invention: the staff is always in a safe state during the process of hooking the ground wire. Even if the line is charged suddenly or there is a strong induced voltage on the line, the staff will not be in danger of personal safety.
Description
Technical field [0001] The invention relates to a grounding wire device with an isolation switch and a use method thereof, and belongs to the technical field of electric power construction safety tools. Background technique [0002] Usually the grounding wire we use is the grounding wire and the grounding connection wire of each phase wire directly connected together, when using, connect the grounding terminal first and then the wire terminal. Although the staff has checked the electricity before connecting the grounding wire, if the line is suddenly electrified after the inspection is completed, or the line is parallel or crossing other high-voltage lines, there will be a strong induced voltage, then the grounding wire is equivalent Because the line is directly charged and short-circuited and grounded, a large short-circuit current and arcing are caused, and the life safety of construction personnel is greatly threatened. Summary of the invention [0003] The purpose of the pres...
Claims
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IPC IPC(8): H02G7/22H02G1/02H01H3/36
CPCH01H3/36H02G1/02H02G7/22
Inventor 陈有双
Owner STATE GRID JIBEI ELECTRIC POWER CO LTD TANGSHAN POWER SUPPLY CO