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Fireproof cable branch connection structure

A branch connection and fireproof cable technology, applied in the direction of insulated cables, connection insulation, cables, etc., can solve the problems of insufficient connection strength, difficult connection, poor contact performance, etc., and achieve the effect of convenient operation, reliable connection strength and stable contact

Inactive Publication Date: 2018-10-02
镇江凯勒电力科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] The structure of the fireproof cable is complex, with multiple layers of protection, especially the outermost metal armored sheath is difficult to connect when connecting the branches. The fireproof cable branches in the prior art generally adopt a direct lap connection method. The main cable armor and branch cable armor at both ends of the branch are overlapped and connected at the same time, the connection strength is not enough, and the contact performance is not good, and the structure of the semi-circular Hafur connection block is complicated, and the welding process is cumbersome.

Method used

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Embodiment Construction

[0011] As shown in the figure, a fireproof cable branch connection structure includes a connection block 4, the conductor of the branch cable 5, the conductor of the armored steel strip 6 and the conductor of the main cable 2, and the steel of the armored steel strip 1 is connected and conducted inside the connection block 4 , the connection block 4 is a molded compression plastic block; the armored steel strip of the branch cable 5 is fixedly connected with the armored steel strip of the main cable 2 at the two ends of the connection position at the same time; the armored steel strip of the branch cable 5 is connected with the main cable The armored steel strip of the cable 2 has an insulating fireproof layer 3 between the fixedly connected position and the connecting block 4; there is an insulating layer between the conductor of the branch cable 5 and the conductor connecting part of the main cable 2 and the connecting block 4; the connecting block 4 A sheath is provided on t...

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Abstract

The invention relates to a fireproof cable branch connection structure. A branch cable conductor, an armoring steel strip, a main cable conductor and the other armoring steel strip are connected withone another inside a connection block; the connection block is a compressed and molded block which is formed through compression and molding; the branch cable armoring steel strip is fixedly connectedwith the main cable armoring steel strip at two ends of the joint of the branch cable armoring steel strip and main cable armoring steel strip through spot welding simultaneously; and an insulating fireproof layer is arranged between the fixed joint of the branch cable armoring steel strip and the main cable armoring steel strip and the connection block; an insulation layer is arranged between the joint of the branch cable conductor and the main cable conductor and the connection block; and a sheath is arranged outside the connection block. The fireproof cable branch connection structure hasthe advantages of convenient operation, reliable connection strength and stable contact.

Description

technical field [0001] The invention relates to a fireproof cable branch connection structure, which is specifically applied to the technical field of installation and manufacture of fireproof cables for power transmission and transformation equipment. Background technique [0002] The structure of the fireproof cable is complex, with multiple layers of protection, especially the outermost metal armored sheath is difficult to connect when connecting the branches. The fireproof cable branches in the prior art generally adopt a direct lap connection method. The main cable armor and branch cable armor at both ends of the branch are lapped and connected at the same time, the connection strength is not enough, and the contact performance is not good, and the semi-circular Hafur connection block has a complicated structure and a cumbersome welding process. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fireproof cab...

Claims

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Application Information

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IPC IPC(8): H01B7/02H01B7/22H01B7/29H01R4/70
CPCH01B7/29H01B7/02H01B7/223H01R4/70
Inventor 王加慧
Owner 镇江凯勒电力科技有限公司
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