Magnetic pulse rapid connection device and method for power cable

Abstract

The invention provides a magnetic pulse rapid connection device for a power cable. The magnetic pulse rapid connection device comprises a connection part, a supporting part and a pulse generator, andis characterized in that the connection part is integrally cylindrical and comprises a magnetic collector and a coil assembled at the outer diameter of the magnetic collector; the magnetic collector and the coil are of a split structure, the connection part is divided into an upper part and a lower part, the lower part of the connection part is assembled on the supporting part, and a fastening assembly is arranged at the joint of the upper part of the connection part and the lower part of the connection part; the coil is electrically connected to the magnetic pulse generator, an internal wirecore at the joint of two strands of power cables to be connected is arranged in a connecting pipe, and the connecting pipe is arranged between the upper part and the lower part of the connection part.Correspondingly, the invention further provides a connection method based on the above device. By adopting a split structure, the field construction requirement that the coil of the long cable is inconvenient to disassemble axially, can be met.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to a magnetic pulse quick connection device and a connection method for power cables. Background technique [0002] Due to factors such as construction wiring and supply length limitations of power cables, cable intermediate heads must be used for connection in cable construction of power system power transmission and transformation projects. In addition, when the power cable breaks due to accidents, an intermediate joint is also required for connection. At present, the manual mechanical crimping method is generally used for the intermediate joints of power cables, that is, using crimping pliers to apply mechanical compression force to the connecting tube sleeved outside the cable core to form several "point pressure" or "confining pressure" connections. Although the process is easy to operate, there are the following disadvantages and hidden dangers: First, the pressing f...

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Problems solved by technology

The disadvantage is that it will generate high temperature and metal particles will escape, which is not good for the health of construction workers

[0004] However, the main difficulty to be overcome in the implementation of the above scheme lies in the assembly and disassembly of the coil and the magnetic collector.

Traditional solenoid coils and tube forming magnet collectors are integral, and the workpiece can only be pulled out axially after forming or connecting, which is difficult to operate for very long cables, especially for some constructions that require on-site connection of cables In other words, the solenoid coil and the magnetic collector are not allowed to be withdrawn axially after the cable is connected.

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