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Crosslinked polyethylene welding type insulated cable joint and manufacturing and installation processes thereof

A cross-linked polyethylene, insulated cable technology, applied in the direction of insulated cables, cable/conductor manufacturing, insulators, etc., can solve the problems of low production efficiency, high technology participation, and difficult production, and achieve simple, convenient and successful manufacturing and installation processes The effect of improving rate and efficiency and avoiding partial discharge

Inactive Publication Date: 2016-10-12
HANGZHOU LINAN KEMA ELECTRIC POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the XLPE fusion-bonded insulated cable joint formed by this repair method can also complete the repair and connection of the damaged XLPE insulated power cable, its manufacturing process is quite cumbersome and complicated, requiring high technical participation. Any link may lead to the failure of XLPE fusion-bonded insulated cable joints, which is difficult to manufacture and low in production efficiency, which directly leads to low repair and connection efficiency

Method used

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  • Crosslinked polyethylene welding type insulated cable joint and manufacturing and installation processes thereof

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Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0036] see figure 1 , this embodiment includes a cable 1 , a shielding layer 2 , a copper shielding net 3 , an inner sheath 4 and an outer sheath 5 from inside to outside.

[0037] The cable 1 includes a conductive layer 11 and an insulating layer 12 from inside to outside, and the conductive layer 11 includes a conductor layer 111 and an inner semiconductor layer 112 from inside to outside. The insulating layer 12 is directly wrapped outside the inner semiconducting layer 112 by cross-linked cross-linked polyethylene tape and overlapped with the insulation layer of the original cable, and then the cross-linked polyethylene tape is melted by heating to form insulation with the original cable The cross-linked polyet...

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Abstract

The invention relates to a cross-linked polyethylene fusion-bonded insulated cable joint and its manufacturing and installation process, belonging to the technical field of the electrical industry. It includes a cable, a shielding layer, an inner sheath and an outer sheath from the inside to the outside, the cable includes a conductive layer and an insulating layer from the inside to the outside, and the conductive layer includes a conductor layer and an inner sheath from the inside to the outside. The semiconductor layer, the insulating layer is a cross-linked polyethylene insulating layer formed by melting cross-linked polyethylene insulating tape; the shielding layer is a semi-conductive paint layer; the outer protective layer includes a steel armor, a waterproof layer from the inside to the outside and armor belt. The invention adopts the method of directly melting the cross-linked polyethylene insulating layer with the cross-linked polyethylene tape, so that the manufacturing and installation process of the cross-linked polyethylene fusion-bonded insulating cable joint is very simple and convenient, and the success rate and efficiency are improved .

Description

technical field [0001] The invention relates to a cross-linked polyethylene fusion-bonded insulated cable joint and its manufacturing and installation process, belonging to the technical field of the electrical industry. Background technique [0002] XLPE insulated wires and cables are popular among users because of their excellent electrical properties, allowable operating temperature of conductors up to 90°C, large transmission capacity, simple structure, convenient installation and laying, no drop limit, and especially no risk of fire caused by oil leakage. Welcome. [0003] In the cable manufacturing plant, whether it is in the manufacturing process or the transportation process, there will inevitably be manufacturing defects or due to collisions, the finished or semi-finished products of XLPE insulated power cables will fail to withstand voltage (breakdown) or damage. In this case, the manufacturing plant intelligently saws it into sections, and those finished or semi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B3/44H01B7/18H01B7/282H01B9/02H01B13/00H01B13/06
CPCH01B7/02H01B3/441H01B7/18H01B7/282H01B9/02H01B13/00H01B13/06
Inventor 钟华
Owner HANGZHOU LINAN KEMA ELECTRIC POWER TECH CO LTD
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