Fireproof protection method for cable connector used in humid environment

A technology for cable joints and humid environments, applied in cable joints, fire rescue, etc., can solve problems such as heat accumulation, explosion, unfavorable cable operation safety, etc., and achieve the effect of reducing explosion or fire accidents and facilitating heat dissipation

Inactive Publication Date: 2017-01-11
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the closed protective box and the closed fireproof board are not conducive to the heat dissipation of the cable joint, and it is easy to generate heat accumulation, resulting in an explosion accident, which is not conducive to the safe operation of the cable.

Method used

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  • Fireproof protection method for cable connector used in humid environment
  • Fireproof protection method for cable connector used in humid environment
  • Fireproof protection method for cable connector used in humid environment

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Embodiment Construction

[0026] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0027] A fireproof protection method for cable joints used in humid environments provided by the present invention is realized by using a fireproof protection box for cable joints used in humid environments, such as figure 1 As shown, it has a cavity inside to accommodate the cable joint 2; the bottom of the fire protection box 3 is provided with a non-combustible dehumidification material 8; The temperature and humidity sensor 7 connected by communication with the moisture-proof, fire-proof and heat-dissipating components; the fire protection method includes:

[0028] The temperature and humidity sensor 7 detects the real-time temperature in the fire protection box 3, and judges whether it exceeds the preset warning value;

[0029] When it is detected that the real-time temperature in the fire protection box 3 ...

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Abstract

Disclosed is a fireproof protection method for a cable connector used in a humid environment. A fireproof protection box for the cable connector used in the humid environment is adopted; a non-inflammable dehumidifying material is arranged at the bottom of the fireproof protection box; a normally-closed dampproof and fireproof heat dissipation part, and a temperature-humidity sensor which is in communication with the dampproof and fireproof heat dissipation part are arranged on the fireproof protection box; when the temperature-humidity sensor detects that a real-time temperature in the fireproof protection box is not greater than a preset warning value, the dampproof and fireproof heat dissipation part is controlled to be closed; when the real-time temperature in the fireproof protection box is greater than a first preset warning value and the cable connector is overheated, the dampproof and fireproof heat dissipation part is controlled to be opened; and when the real-time temperature in the fireproof protection box is greater than a second preset warning value and the cable connector is combusted, the dampproof and fireproof heat dissipation part is controlled to be closed. By adoption of the fireproof protection method, effective dampproof protection on the cable connector is realized, thereby promoting heat dissipation of the cable connector, effectively reducing explosion or fire caused by heat accumulation; and in addition, in case of breaking out of fire, fireflow can be effectively blocked to prevent fire from spreading to other cables laid in the same tunnel.

Description

technical field [0001] The invention relates to a fireproof protection method for cable joints, in particular to a fireproof protection method for cable joints used in humid environments, and is suitable for fireproof protection in densely populated places such as cable tunnels, cable trenches, and cable interlayers. Background technique [0002] Cable fires mostly occur at cable joints. The cable intermediate joint is the weakest link in the safe operation of the power system. Cases of cable disconnection, short circuit, explosion and even major accidents caused by overheating of the cable joint are not uncommon. In the prior art, the high-voltage cable joints in some cable tunnels are arranged in closed protective boxes, and the interior of the protective boxes is filled with fireproof blocking materials. The heat dissipation of the cable joint is not good, and it is easy to generate heat accumulation. Once the joint explosion accident occurs, the energy has nowhere to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G15/10A62C3/16
CPCA62C3/16H02G15/10
Inventor 李双凤
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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