Outdoor safety type ammeter system
A safe, electric meter technology, applied in the field of electric meter systems, can solve problems such as being easily corroded by rain water, and easy to cause fire when the electric meter catches fire, and achieves the effect of convenient operation, avoiding fire spread and increasing sealing.
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Embodiment 1
[0023] like figure 1 , figure 2 As shown, the outdoor safety meter system includes a box body 1 and a box cover 2 hinged to the box body 1. The box body 1 is concaved to form a storage cavity 3, and the electric meter 4 is arranged in the storage cavity 3. The box cover 2 is provided with a There is an observation port 14; it also includes a temperature circuit breaker 5 connected to the neutral wire and the live wire of the electric meter 4 and a fire extinguishing device 6 sleeved on the neutral wire and the live wire.
[0024] In this embodiment, when the temperature inside the box 1 is higher than the temperature set by the temperature circuit breaker 5, the circuit will be disconnected to avoid spontaneous combustion of the wire due to excessive temperature. Two temperature circuit breakers 5 are provided and are respectively connected to the neutral wire and the live wire, so that the live wire and the neutral wire can be disconnected at the same time. Furthermore, wh...
Embodiment 2
[0026] In this embodiment, on the basis of Embodiment 1, the fire extinguishing device 6 includes a fire extinguishing bag 7 and a fire extinguishing medium disposed in the fire extinguishing bag 7 , and the fire extinguishing bag 7 is provided with a through hole 8 for passing the neutral line and the fire line. Described fire extinguishing bag 7 is made of combustible material.
[0027] Under the situation of ammeter 4 overload or short circuit, when zero wire and fire wire caught fire, fire extinguishing bag 7 is made of inflammable material, and fire extinguishing bag 7 will be burnt, and the fire extinguishing medium that is positioned at fire extinguishing bag 7 will flow out and extinguish flame. The fire extinguishing medium in this embodiment can be dry powder or sand. Since sand is cheap and can be seen everywhere, sand is the preferred fire extinguishing medium of this scheme.
Embodiment 3
[0029] In this embodiment, on the basis of embodiment 1 or embodiment 2, a groove 9 is opened on the upper surface of the box body 1 , and a sealing gasket arranged in the groove 9 is also included.
[0030] The sealing gasket arranged in the groove 9 is used to increase the sealing performance of the box body 1 and the box cover 2, so as to prevent water vapor in the air from entering the box body 1 and corroding the electric meter.
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