75kv low impedance coaxial cable

Abstract

The invention relates to a 75kV low-impedance coaxial cable used for connecting and wiring an accelerator control system and a linear pulse transformer for transmitting leading edge pulse signals. Braid multiple strands of tough copper wires outside the filler core as the inner conductor of the cable, and the inner conductor is provided with an isolation layer, a first layer of insulation, a second layer of insulation, a third layer of insulation, an isolation layer, an outer conductor and a sheath. The feature is: braiding multiple strands of tough copper wire on the filling core as the inner conductor of the cable, which not only reduces the weight of the cable, but also makes the whole cable soft and easy to bend. The isolation layer is a semi-conductive material to reduce the gap between the inner and outer conductors and the insulating layer, prevent the problem of partial discharge caused by the concentration of the electric field, and improve the withstand voltage of the cable. The first, second and third layers of insulation are respectively made of cross-linked polyethylene, polytetrafluoroethylene, and cross-linked polyethylene materials. The three layers of insulation together form a hierarchical composite insulation structure, which not only ensures the cable impedance, capacitance, inductance and the system. Matching design achieves low impedance of the cable.

Description

technical field [0001] The invention relates to a cable, in particular to a 75kV low-impedance coaxial cable suitable for connecting and wiring a special accelerator control system and a linear pulse transformer for transmitting leading edge pulse signals. Background technique [0002] Ordinary coaxial cables generally do not have the ability to withstand fast high-voltage shocks, and cannot match the low impedance of the control system, which is not conducive to the transmission of fast leading edge pulse signals. Contents of the invention [0003] In view of the deficiencies in the prior art, the present invention provides a device with the characteristics of small size, high electrical insulation performance, strong resistance to external electromagnetic interference, low impedance, small distributed inductance, strong ability to withstand rapid high-voltage impact, and excellent mechanical properties. 75kV low impedance coaxial cable. [0004] In order to achieve the ...

AI Technical Summary

Problems solved by technology

[0002] Ordinary coaxial cables generally do not have the ability to withstand fast high-voltage shocks, and cannot match the low impedance of the control system, which is not conducive to the transmission of fast leading edge pulse signals

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