Portable 120-to-400mm2 aluminum conductor steel reinforced cable shunting clamp and use method thereof
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A steel-cored aluminum stranded wire and shunt wire technology, which is applied in the direction of connecting/terminating cable equipment, etc., can solve the problems of steel-cored aluminum stranded wire specification and cross-section change, etc., to improve the reliability of power supply, protect people and electrical equipment Safe, easy to transport and store
Active Publication Date: 2015-08-26
ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY +1
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Problems solved by technology
Solved the problem of cross-section changes of 36 kinds of ACSRs with different models and specifications that are heated inside the crimping tube and at the junction of the terminal board of the drain wire
Method used
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Embodiment 1
[0048] Example 1: Taking the heating of 66kV busbar contacts as an example
[0049] A portable 120-400mm 2 The operation method of the steel core aluminum stranded wire shunt line fixture is to lift the above fixture to the working position of the busbar, horizontal busbar, and herringbone line heating contact, and keep a safe distance for live work at the corresponding voltage level. The specific operation steps of live direct connection or short connection are as follows:
[0050] 1. On-site survey, according to the survey results to make a judgment on the section specification of the drainage line between the busbar and the circuit.
[0051] 2. Determine the live working method and determine the access for workers to go up and down the insulating ladder.
[0052] 3. Determine the lifting channel of the shunt line fixture and the measures to be taken.
[0053] 4. The inspection and test of insulating tools are qualified, the equipotential electrician shielding clothing is...
Embodiment 2
[0065] Example 2: Take the heating of 220kV busbar contacts as an example
[0066] A portable 120-400mm 2 The operation method of the steel core aluminum stranded wire shunt line fixture is to lift the above fixture to the working position of the busbar, horizontal busbar, and herringbone line heating contact, and keep a safe distance for live work at the corresponding voltage level. The specific operation steps of live direct connection or short connection are as follows:
[0067] 1. On-site survey, according to the survey results to make a judgment on the section specification of the drainage line between the busbar and the circuit.
[0068] 2. Determine the live working method and determine the access for workers to go up and down the insulating ladder.
[0069] 3. Determine the lifting channel of the shunt line fixture and the safety measures that should be taken.
[0070] 4. The inspection and test of insulating tools are qualified, the equipotential electrician shield...
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Abstract
The invention relates to a portable 120-to-400mm2 aluminum conductor steel reinforced cable shunting clamp and a use method thereof. The shunting clamp includes an O-shaped ring locking screw, a shunting clamp main body, an upper electric connection pressing block, a lower electric connection pressing block, a locking rod, a jacking and pressing spring, an insulating handle, an angle-variable terminal plate, a crimping electric connection joint and a soft copper wire; the clamp is lifted to an operating position of a heat emitting point of a busbar, a cross busbar and a lambda-shaped line, and safe distance of electrified operation of corresponding voltage levels can be maintained, and electrified direct connection or short circuiting can be realized. The clamp of the invention can be assembled and disassembled. The integrated combined clamp is convenient to transfer and store and can be applicable to 120-to-400mm2 aluminum conductor steel reinforced cables in six specifications in different transformer substations, 36 kinds of conductor section change conditions and operation of joint contact heat emission and short circuiting shunting. With the clamp adopted, emergencies and defects can be eliminated fast through electrified operation, and control on conditions, environment and other dangerous points of an operation field can be realized. The clamp of the invention is safe, convenient and fast in operation, and can assist in improving the reliability of power supply and guaranteeing personal safety and the safety of electrical equipment.
Description
technical field [0001] The invention relates to the field of live maintenance of substations, in particular to a portable 120-400mm 2 Steel cored aluminum stranded wire shunt line fixture and its usage method. Background technique [0002] In a power system, a substation is an assembly point for power transmission and distribution. The bus bar of the substation is one of the most important power components of the power system, which plays the role of transmitting electric energy. The connection joint between the bus bar in operation and the equipment circuit interval drain line is realized through the steel cored aluminum stranded wire crimping tube terminal. Due to the long history of operation and the sharp increase in regional power loads, the wiring terminal joints and crimping tubes on the busbar, horizontal busbar, and drainage lines will sometimes generate heat. Burning and melting, the internal heat of the crimping tube will cause the busbar to burn, and even break...
Claims
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Application Information
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