Outdoor power distribution cabinet with high protection performance

Abstract

The invention discloses an outdoor power distribution cabinet with high protection performance, which belongs to the technical field of power equipment and comprises a cabinet body, ventilation squareholes are symmetrically formed in the left side wall and the right side wall of the cabinet body, and first cavities are formed in the left side wall and the right side wall of the cabinet body and located on the upper sides of the ventilation square holes. A fireproof sealing plate is arranged in the first cavity, the size of the fireproof sealing plate is matched with that of the ventilation square hole, a sealing cover plate is fixed to the top end of the fireproof sealing plate, a hanging rope is connected to the top end of the sealing cover plate, the top end of the hanging rope is hungat the inner top end of the first cavity, and a hanging rope cutting-off structure is arranged at the inner top of the first cavity; and the ventilation square holes can be automatically blocked whenopen fire is generated in the power distribution cabinet, so that the interior of the cabinet body is sealed, the effect of isolating oxygen is achieved, the situation that the fire behavior is increased due to continuous circulation of air is avoided, timely self-control of the power distribution cabinet when open fire occurs is achieved, and the protection performance and the safety of the powerdistribution cabinet are effectively improved.

Description

technical field [0001] The invention relates to the technical field of electric equipment, and more specifically relates to an outdoor power distribution cabinet with high protection performance. Background technique [0002] The power distribution cabinet (box) is divided into power distribution cabinet (box), lighting distribution cabinet (box), metering cabinet (box), and is the final equipment of the power distribution system. The power distribution cabinet is a general term for the motor control center. The power distribution cabinet is used in the occasions where the load is relatively scattered and there are few circuits; the motor control center is used in the occasions where the load is concentrated and there are many circuits. They distribute the electric energy of a certain circuit of the upper-level power distribution equipment to the nearest load. This level of equipment shall provide protection, monitoring and control of the load. [0003] The power distribu...

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Problems solved by technology

[0003] The power distribution cabinets are generally used outdoors and unattended during use. Therefore, when an open flame is generated in the power distribution cabinet due to a short circuit or other circumstances, the open flame cannot be carried out immediately. Most of the power distribution cabinets are equipped with ventilation equipment. When an open flame is generated, if the ventilation is continued, the fire in the power distribution cabinet will increase rapidly in a short period of time, which will cause the entire power distribution cabinet to burn out, and then cause a more serious fire situation, and may also cause a certain range of circuits. total paralysis

[0004] Although the fire extinguishing system with sensors and automatic control already exists in the prior art, since these devices and circuits are installed in the power distribution cabinet, if these devices are damaged or cannot work due to the influence of open flames, they cannot normally play a role in fire prevention and extinguishing. function, so the work stability is not high

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