A high-voltage transmission line enters the electric field equipotential live working method
A technology for high-voltage transmission lines and entering the electric field, which is applied in the direction of overhead lines/cable equipment, etc., can solve the problems that the workers cannot maintain a half-squatting state, the distance between the strings of tension insulators is long, and the labor intensity of the workers is high, and the material is lightweight , The distance between strings is large, reducing the effect of shaking
Active Publication Date: 2016-05-04
STATE GRID CORP OF CHINA +2
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Problems solved by technology
[0003] 1) The distance between the tension insulator strings of high-voltage transmission lines is relatively long. When an equipotential electrician enters the electric field, his hands must be kept straight all the time. The operator cannot maintain a half-squat state and has difficulty moving;
[0004] 2) The number of insulators in the tension insulator series of high-voltage transmission lines is large, the labor intensity of the operators is relatively high, and the physical exertion is serious, which affects the follow-up live work and even fails to complete the work
Method used
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Embodiment Construction
[0021] In the method of the present invention for high-voltage transmission lines to enter the electric field, the equipotential electrification operation method is used. The electric field entry and exit vehicle can move forward or backward on two strings of tensile insulator strings.
[0022] A specific embodiment of the electric field in and out of the vehicle used in the method of the present invention, such as Figure 1~3 Shown. The electric field entering and exiting the vehicle can be pedal-operated, which can be used to advance or retreat by pedaling, and other driving methods can also be used. As a pedal type, the pedal 2 is mounted on the vehicle body through a rotating shaft.
[0023] The traveling mechanism of the electric field in and out of the vehicle is a crawler type, and the crawlers on both sides are respectively pressed on two parallel strings of tensile insulators when traveling. The traveling mechanism includes a driving wheel 8 and a crawler belt 7 (insula...
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The invention relates to an equipotential live working method for entering electric field of a high-voltage transmission line. An equal potential electrician takes an electric field entering-and-outing vehicle for entering the electric field along tension insulator strings. The electric field entering-and-outing vehicle can advance or retreat on two tension insulator strings. According to the method, the equal potential electrician enters the electric field in a sitting gesture, thereby reducing physical power consumption of operation personnel. Compared with an electric field entering method in which the left foot and the right foot are respectively placed on a first insulator and a third insulator and the left hand and the right hand are placed on two insulators on the other insulator string, the method of the invention has an advantage of making the operator more comfortable and more convenient, so that the operator has enough physical power for finishing the subsequent live operation. The electric field entering-and-outing vehicle of the invention has advantages of simple integral structure, small material weight, low studying cost of the operator, and easy operation. Furthermore high operation efficiency and high operation safety can be ensured.
Description
Technical field [0001] The invention belongs to the field of ultra-high voltage power transmission and transformation, and in particular relates to a method for high-voltage power transmission lines entering an electric field into an equipotential electrification operation. Background technique [0002] When an ultra-high voltage transmission line fails, due to the large transmission power of the line, it is often necessary to adopt a live line elimination method. Using the "span two short three" method to enter the electric field freely along the insulator string is a relatively traditional way to enter the electric field. However, this method has the following disadvantages: [0003] 1) The distance between the tension insulator strings of the high-voltage transmission line is relatively long. When the equipotential electrician enters the electric field process, the hands must always be kept straight. The operator cannot maintain a half-squatting state and it is difficult to mov...
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IPC IPC(8): H02G1/02
Inventor 雷冬云任承贤邹德华梅文建甄朝辉曾文远汪志刚石凯袁黎冯刚李辉童诚欧乃成夏增明刘治国唐力郑克全何龙飞
Owner STATE GRID CORP OF CHINA