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Mineral insulated soft fire-resistant branch cable

A mineral insulation, branch cable technology, applied in the direction of insulated cables, insulated conductors, bendable cables, etc., can solve the problems of fire protection and poor waterproofness at branch connections, and achieve the effect of simple structure, improved waterproof performance, and convenient installation.

Inactive Publication Date: 2013-06-19
上海市高桥电缆厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, since the branch connection of the mineral insulated fire-resistant branch cable itself has poor fireproof and waterproof performance, and the branch box cannot solve this problem, this problem has been urgently needed to be solved.

Method used

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  • Mineral insulated soft fire-resistant branch cable
  • Mineral insulated soft fire-resistant branch cable
  • Mineral insulated soft fire-resistant branch cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0024] figure 1 It is a schematic cross-sectional view of an existing body cable 40 . The body cable 40 includes a conductor core 401 , a mineral insulating layer 402 and a metal corrugated copper sheath 403 .

[0025] Figure 2-3 They are separate views of the connector lower cover and the connector upper cover of the present invention, respectively. The connector lower cover 10 includes two main line half holes 101 and a branch line half hole 104, and the connector upper cover 20 includes two matching main line half holes corresponding to the position of the connector lower cover 10 201 and a matching branch line half hole 204. The connector upper cover 20 includes a waterproof rib 202 , and the connector lower cover 10 includes a waterproof groove 102 matched with the waterproof r...

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PUM

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Abstract

The invention discloses a mineral insulated soft fire-resistant branch cable comprising a cable branch connector and a cable body, wherein the cable branch connector comprises a connector upper cover and a connector lower cover, the connector upper cover is provided with two main line half-holes and a branch half-hole, two matched main line half-holes and a matched branch half-hole are formed in positions of the connector lower cover corresponding to the connector upper cover, the cable body comprises a conductor cable core, a mineral insulating layer and a metal embossing copper protective sleeve, and the conductor cable core of the cable body in the cable branch connector is connected through a C-type clamp. The mineral insulated soft fire-resistant branch cable has the advantages of being simple in structure, convenient to install, and fireproof and waterproof.

Description

technical field [0001] The invention relates to a branch cable, in particular to a mineral insulated flexible fire-resistant branch cable. Background technique [0002] In the prior art, if domestic mineral insulated flexible cables require branching, branch boxes are generally used. The main line enters the branch box, and the branch cores are led out from the branch box. This method needs to be operated on the construction site, and the installation is cumbersome and unreliable. The branch box itself is not fireproof or waterproof, and the fire cannot guarantee that the mineral insulated flexible cable can continue to maintain the power supply requirements. On the other hand, since the branch connections of plastic insulated fire-resistant branch cables are usually not protected by metal pipes or mica insulation protective layers, their fire resistance can only reach 750 degrees for 90 minutes, and the fire resistance stability is poor, which cannot meet the requirements ...

Claims

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Application Information

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IPC IPC(8): H01B7/04H01B7/02H01B7/17H01B7/282H01B7/29H01R13/502H01R13/52H01R13/527H01R13/40H01R4/28
Inventor 徐春斌张龙田王建忠
Owner 上海市高桥电缆厂有限公司
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