Fireproof protection device for cable intermediate joint, manufacturing method and using method thereof
A technology of cable intermediate joints and protective devices, which is applied in the direction of cable installation, equipment for connecting/terminating cables, cable accessories, etc. It can solve the problems of sudden drop in insulation strength of insulating materials, reduction of insulation strength, and explosion of intermediate connections, etc., to achieve The effect of rapid fixed-point processing and prevention of accident expansion
Inactive Publication Date: 2020-12-29
SHENZHEN POWER SUPPLY BUREAU
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- Claims
- Application Information
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Problems solved by technology
Due to the characteristics of the material connected in the middle of the cable, the insulation strength decreases with the increase of temperature. Therefore, when the temperature rises due to an abnormality in the middle connection of the cable, the insulation strength of the insulation material will drop sharply, further expanding the impact of the accident, causing Serious consequences such as intermediate connection explosion and power failure
Method used
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[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0042] In order to make those skilled in the art more clearly understand the purpose, technical solutions and advantages of the invention, the invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.
[0043] Such as figure 1 As shown in FIG. 1 , it shows a structural schematic diagram of an embodiment of a fire protection device for cable intermediate joints provided by the present invention. In this embodiment, the fireproof protective device includes a support tube 1, a fireproof short core 2, a fireproof long core 3, and a fireproof insulating layer 4; wherein:
[0044] The support tube 1 is formed by winding and ...
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Abstract
The invention provides a fireproof protection device for a cable intermediate joint. The fireproof protection device comprises a supporting pipe (1), a fireproof short core (2), a fireproof long core(3) and a fireproof insulating layer (4), wherein the fireproof short core (2) and the fireproof long core (3) are both formed by mixing and vulcanizing ceramic conductive silicone rubber, the fireproof insulating layer (4) is formed by mixing and vulcanizing ceramic insulating silicone rubber, and the fireproof insulating layer (4), the fireproof short core (2) and the fireproof long core (3) areintegrally formed and are sleeved on the support pipe (1) layer by layer. The invention further discloses a corresponding manufacturing method and a corresponding using method. By implementing the invention, the safety of the cable joint can be ensured, and the positioning alarm can be quickly realized.
Description
technical field [0001] The invention relates to a cable accessory in the electric power industry, in particular to a fireproof protection device used for a cable intermediate joint, a manufacturing method and a use method. Background technique [0002] Since cables are limited by factors such as the length of raw materials, storage and transportation conditions, and usage conditions, it is generally used to store, transport and use cables with a certain length in rolls. In the connecting part of two cables, it is necessary to use equipment or accessories such as cable distribution box and cable intermediate connection to connect the conductive parts of the two cables, and provide insulation protection at the same time to ensure the safe operation of the line. [0003] In the accident statistics of the power system, most of the sudden accidents are concentrated in the middle connection position of the cable. Due to the characteristics of the material connected in the middle ...
Claims
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Login to View More IPC IPC(8): H02G15/196H02G1/14
CPCH02G15/196
Inventor 胡冉邓世聪康文韬尚龙龙李健罗金阁
Owner SHENZHEN POWER SUPPLY BUREAU