Improvement of the original low-voltage distribution box wiring capacitor bank

The low-voltage electrical distribution box by fuses, AC contactor, residual current operated protective devices, capacitors and gauges and other components. These low-voltage electrical appliances according GB1497 "low-voltage electrical basic standards" for design and manufacture, and their  Electric energy meter  provisions were made under normal  electri cenergy meter : ambient air temperature does not exceed the upper limit of 40 ℃; 24h average ambient air temperature does not exceed 35 ℃ ; ambient air temperature limit of not less than -5 ℃ or -25 ℃.
Rural Reconstruction  circuit breakers  box in the outdoor run, it is not only subject to direct sunlight, high temperature, while the operation itself will generate heat, so hot in the summer season, the cabinets will reach temperatures above 60 ℃, when the temperatures much higher than the predetermined temperature of these appliances, which occur due to the distribution box failures caused by overheating of electrical components.