An explosion-proof power distribution box

Abstract

The invention discloses an explosion-proof power distribution box, which is composed of a wiring room, a power distribution frame, a smoke alarm, a sealing cover, a lead pipe, a heat-shrinkable sleeve and a rubber blocking block, and at least two wiring ports are arranged on the side wall of the wiring room , an exhaust port and an air pressure detection port, another layer of explosion-proof glass baffle is set in the wiring room, the power distribution frame is installed in the wiring room, the smoke alarm is installed on the power distribution frame, the wiring port is connected to one end of the lead pipe through bolts, A rubber block is installed inside the other end of the lead pipe, and at least three wedge-shaped anti-skid grooves are arranged on the outer surface, and one end of the heat-shrinkable sleeve is covered on the wedge-shaped anti-skid grooves of the lead pipe. The invention has simple structure, convenient installation, good isolation effect between electrical equipment and the outside world, good fire alarm, flame retardant and fire extinguishing effects while having anti-leakage function, thereby effectively isolating, alarming and riot-proofing electrical equipment And the flame retardant effect, greatly improving the safety of the power supply line and the safety of the use site.

Description

technical field [0001] The invention relates to an explosion-proof power distribution box, which belongs to the field of power line protection equipment. Background technique [0002] In the erection of power cables, the connection of power lines and electrical appliances, and the installation and operation of electrical appliance control systems, the power distribution box is the main installation and protection equipment, and it is used in a huge amount. In actual use, it is found that: the joints of electrical equipment, During the operation of the joints between cables and electrical equipment such as relays, leakage, short circuit, and ignition of electric shock parts are prone to occur. However, when a fire occurs in the power distribution box, it is very easy to cause a large area of ​​fire or even an explosion. Therefore, in order to overcome this problem, the current common solution is to use an explosion-proof shell to cover the cable joint. To achieve the purpose...

AI Technical Summary

Problems solved by technology

[0002] In the erection of power cables, the connection of power lines and electrical appliances, and the installation and operation of electrical appliance control systems, the power distribution box is the main installation and protection equipment, and it is used in a huge amount. In actual use, it is found that: the joints of electrical equipment, During the operation of the joints between cables and electrical equipment such as relays, leakage, short circuit, and ignition of electric shock parts are prone to occur. However, when a fire occurs in the power distribution box, it is very easy to cause a large area of ​​fire or even an explosion. Therefore, in order to overcome this problem, the current common solution is to use an explosion-proof shell to cover the cable joint. To achieve the purpose of isolating the cable joint from the surrounding environment, so that when the cable joint has a fault such as leakage or fire, it will not cause a large-scale fire or explosion accident in a short period of time. At present, the commonly used explosion-proof enclosures mainly rely on rubber seals. Therefore, its isolation and sealing effect is poor, and it does not have the function of preventing and flame retardant for the fire of the cable joint, and it will still cause fire or explosion, and because it adopts a fully sealed structure , there is a lack of timely observation and alarm for fires that do not occur in the distribution box, so there is still a large risk of use, and it cannot effectively meet the needs of isolation and explosion-proof use

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