Quick-connection type cable intermediate head connecting device

Abstract

The invention relates to a quick-connection type cable intermediate head connecting device which comprises a connector, a stress pipe and an extension pipe, the connector comprises an outer sheath layer, a sealing plug hole and a sealing plug, the sealing plug hole is formed in the outer sheath layer, the center of the outer sheath layer is provided with the stress pipe layer, the stress pipe layer is communicated with the sealing plug hole, a connecting nut is arranged at the bottom of the sealing plug hole, the sealing plug is arranged on the sealing plug hole, a plug fastening bolt is arranged in the center of the sealing plug, the plug fastening bolt is matched with the connecting nut, a stress pipe is arranged in the stress pipe layer, and a stress pipe outer sheath is arranged outside the stress pipe. A semiconductor layer is arranged in the stress tube, the semiconductor layer is connected with a cable terminal head, and grounding nuts are further arranged at the connecting headand the extension pipe; and the device has the advantages of being convenient to overhaul, high in working efficiency and suitable for on-site construction.

Description

technical field [0001] The invention relates to the field of high-voltage electric technology, in particular to a quick-connect type cable intermediate head connection device. Background technique [0002] The middle head of the cable is the cable joint in the middle part of the cable line. The middle joint is a cable accessory used for the middle connection of cables of various voltage levels. Its main function is to make the line smooth, keep the cable sealed, and ensure the insulation level of the cable joint. To make it run safely and reliably, the current conventional cable middle head production procedure is to first make the cable terminals at both ends separately, and then connect the two sides of the terminals. The self-adhesive tape wrapping method, the copper shielding part adopts the copper woven bag splicing method, and the outer insulation part adopts the bitumen wrapping condensation method. [0003] When this method of connecting the cable intermediate head ...

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Problems solved by technology

[0003] When this method of cable intermediate head connection is used on site, it usually faces two disadvantages. One is that the construction time is relatively long, especially when repairing the faults of existing running cables, it is often necessary to intercept and discard a part of the damaged cable length. , At this time, it is usually necessary to connect a certain length of cable of the same type for overlapping, so in fact, two intermediate joints are made to repair a fault point, which greatly prolongs the construction time; second, the manufacturing process of the intermediate head varies from person to person. It is difficult to control, because of poor process control or insufficient waterproof sealing of the middle head, frequent hidden dangers of moisture ingress and discharge in the later stage

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