Fixed metal enclosed ring network switchgear is an electrical equipment in which a set of high-voltage switchgear is installed inside a steel plate metal cabinet or assembled into an interval ring network power supply device. The core part of the fixed metal enclosed ring network switchgear adopts load switches and fuses. The fixed metal enclosed ring network switchgear has the advantages of simple structure, small volume, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box type substations of load centers such as urban residential areas, high-rise buildings, large public buildings, factories and enterprises. The existing fixed metal enclosed ring network switchgear is used with electrical equipment placed inside the cabinet. However, if the electrical equipment inside the cabinet leaks electricity, it may cause electronic equipment to leak. Burning and damage, The implementation elements of fixed metal enclosed ring network switchgear technology, in view of the shortcomings of existing technology, this utility model provides a fixed metal enclosed ring network switchgear. Its advantage is that when the electronic equipment of the fixed AC metal enclosed ring network switchgear is burned by an electrical fire, the fire extinguishing device can be automatically turned on, solving the problem of electrical equipment in the fixed AC metal enclosed ring network switchgear being damaged by an electrical fire once leakage occurs.
In order to achieve the purpose of automatically opening the fire extinguishing device when the electronic equipment of the fixed AC metal closed loop switchgear is burned out by an electrical fire, the present utility model provides the following technical solution: the fixed AC metal closed loop switchgear comprises an outer box, and the right side of the outer box of the fixed metal closed loop network switchgear is hinged with an insulation door. The front of the insulation door is equipped with a safety lock, and the back is equipped with a switch handle. Three fixed brackets are fixedly connected at equal distances on the top of the outer box. The center of the three fixed brackets is fixedly connected to a pressure bottle, and the air outlet of the three pressure bottles is connected to an air delivery pipe. The bottom of the three air delivery pipes is connected to an inflation box, and fixed rods are fixedly connected to the left and right sides of the top of the inflation box. The fixed rods are fixedly connected to the inner wall of the top of the outer box, and the bottom of the inflation box is fixedly connected to a fireproof board. The heat-resistant tube passes through the inner cavity of the fireproof board. A warning light is fixedly connected to the upper right side of the outer box, and a connecting rod is fixedly connected to the middle right side of the outer box. The connecting rod of the fixed metal enclosed ring network switchgear is fixedly connected to the insulation box on the right side. The universal circuit breaker is fixedly connected to the inner cavity of the insulation box, and two damping springs are fixedly connected to the left and right sides of the Connection, the universal circuit breaker is connected to the electronic device circuit inside the box through wires.
