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Equipotential access method of alternating current ultra / super high-tension line live-line work and electric potential transferring stick

A potential transfer rod, live work technology, applied in the direction of overhead lines/cable equipment, circuits, electrical components, etc., can solve problems such as safety hazards for operators, damage to shielding clothing, etc., to improve safety, avoid hazards, and weaken arcs. Effect

Active Publication Date: 2008-07-23
STATE GRID ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For 750-1000kV ultra / ultra-high voltage AC lines, if the method used in 500kV and below live work is still used to enter the equipotential, the pulse current and arc will cause harm to the safety of the workers during the potential transfer process, and will damage shield suit

Method used

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  • Equipotential access method of alternating current ultra / super high-tension line live-line work and electric potential transferring stick
  • Equipotential access method of alternating current ultra / super high-tension line live-line work and electric potential transferring stick

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Embodiment Construction

[0010] specific implementation

[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0012] Instructions marked in 1 in the figure: 1-ground wire, 2-insulator string, 3-crossarm, 4-conductor, 5-potential transfer rod, 6-hanging basket (people sit in it);

[0013] Instructions marked in figure 2: 7-lead wire, 8-connector, 9-metal rod, 10-metal hook.

[0014] An embodiment of the present invention is shown in FIG. 1 . The equipotential entry method for live work on AC super / ultra-high voltage lines is characterized in that the operator wears a full set of shielding clothing for super / ultra-high voltage AC live work, connects the potential transfer rod to the shielding clothes well, and rides on an insulated hanging basket 6 (or insulated Hanging chair, etc.) close to the wire 4, when the distance from the wire 4 (charged body) is 0.5m, use a special potential transfer rod to contact the wire 4 to perform poten...

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Abstract

The invention is a hot-line job equipotential entering method of A.C. extra or ultrahigh voltage transmission line and the electric displacement rod. The method is characterized in that the operating staff wears extra or ultrahigh voltage A.C. hot-line job complete set barrier clothes and accesses the charged body by the insulated delivery vehicle after connecting the electric displacement rod and the barrier clothes, when operating staff is 0.4-0.6m from the charged body, the operating staff use the special electric displacement rod to contact the charged body in order to transfer electric potential and enter the equipotential. The electric displacement rod comprises a lead-in wire 7, a connector 8, a metallic rod 9 and a crampon 10, wherein the lead-in wire 7 and the crampon 10 are connected with two ends of the metallic rod 9 separately, the connector 8 is connected with the other end of lead-in wire 7, the metallic rod 9 is circular and has smooth surface. The invention reduces impulse current substantially, which improves the safety of entering the equipotential, extends the durability of barrier clothes, and improves the working efficiency of hot-line job.

Description

technical field [0001] The invention belongs to the field of high-voltage transmission lines, and relates to a method for entering electric potential equipotentials of AC super / ultra-high voltage lines and a potential transfer rod. Background technique [0002] Live work has become an important means and method of power line detection, maintenance and transformation, and plays a very important role in the safe and reliable operation of the power system and the improvement of economic benefits. Entering the equipotential is an important work step in the live operation of the transmission line, which is directly related to the safety of the operator and the efficiency of the operation. In the live work of the existing 500kV and below voltage transmission lines in my country, the operators usually wear a full set of shielding clothing (including conductive gloves) and then take a carrier such as a hanging basket or a hanging chair to approach the wire, and at a certain distance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02H01R11/14
Inventor 胡毅王力农刘凯邵瑰玮徐莹郑传广刘庭胡建勋肖宾
Owner STATE GRID ELECTRIC POWER RES INST
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