Fireproof cable branch structure
A branch structure, fireproof cable technology, applied in circuits, conductive connections, electrical components, etc., can solve the problems of insufficient connection strength, unreliable connection, difficult connection, etc., and achieve the effects 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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Problems solved by technology
[0002] The structure of the fireproof cable is complex, with multiple protective layers, especially the outermost metal armor sheath is difficult to connect when connecting the branch. The branch conductors of the fireproof cable in the prior art are generally crimped by C-shaped connectors, and the crimping strength It is not easy to control, and the connection is not reliable; the armored steel of the branch part is generally connected by direct lap connection. At the branch part, the armor of the main cable and the armor of the branch cable at both ends of the branch need to be lapped at the same time. The connection strength is not enough, and the contact The performance is not good, and the structure of the semicircular Hafur connection block is complicated, and the welding process is cumbersome
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[0014] As shown in the figure, a fireproof cable branch structure includes a connection block 4, the conductor of the branch cable 5, the armored steel strip 6 and the conductor and armored steel strip 7 of the main cable 2 are connected and conducted inside the connection block 4, and the branch cable The conductor of the cable 4 and the conductor of the main cable 3 are crimped and connected through the E-shaped conductor connector 1, and the connecting block 4 is a compression-molded plastic block; The 7 strips of armored steel are fixedly connected by spot welding at the same time; the armored steel strip 6 of the branch cable 5 and the armored steel strip 7 of the main cable 2 have an insulating fireproof layer 3 between the fixedly connected position and the connection block 4; There is an insulating layer between the conductor of 5, the conductor connecting part of the main cable 2, and the connection block 4; the outside of the connection block 4 is provided with a shea...
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The invention relates to a fireproof cable branch structure. A branch cable conductor and a main cable conductor are in crimped connection with each other through a conductor connection component inside a connection block; a branch cable armoring steel strip and a main cable armoring steel strip are connected with each other through spot welding inside the connection block; the conductor connection component is of an E-shaped structure; the connection block is a compressed and molded block which is formed through compression molding; the branch cable armoring steel strip is fixedly connected with 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 thejoint 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 structure has the advantages of convenient operation, reliable connection strength and stable contact.
Description
technical field [0001] The invention relates to a fireproof cable branch structure, which is specifically applied in 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 protective layers, especially the outermost metal armor sheath is difficult to connect when connecting the branches. The branch conductors of the fireproof cable in the prior art are generally crimped by C-shaped connectors, and the crimping strength It is not easy to control, and the connection is not reliable; the armored steel of the branch part is generally connected by direct lap connection. At the branch part, the main cable armor and the branch cable armor at both ends of the branch need to be lapped at the same time. The connection strength is not enough, and the contact The performance is not good, and the structure of the semicircular H...
Claims
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IPC IPC(8): H01R4/18H01R4/02H01R4/70H01R13/52
CPCH01R4/18H01R4/02H01R4/021H01R4/70H01R13/52H01R13/5219
Inventor 王加慧
Owner 镇江凯勒电力科技有限公司