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What Are The Factors That Lead To Power Distribution Cabinet Failure?
- Jan 25, 2018 -

Ambient temperature on the low-voltage electrical failure caused by low-voltage electrical distribution cabinet, by the fuse, AC contactor, residual current protection devices, capacitors and meters and other components. These low-voltage electrical appliances are designed and manufactured according to GB1497 "Basic standards for low-voltage electrical appliances" and their normal working conditions are stipulated: the upper limit of ambient air temperature does not exceed 40 ℃; the average value of ambient air temperature 24h does not exceed 35 ℃ ; The lower limit of ambient air temperature is not lower than -5 ℃ or -25 ℃. The rural power grid transformation of the distribution box running outdoors, it not only by direct sunlight to produce high temperature, while the operation itself will have heat, so in high summer season, the temperature inside the box will reach 60 ℃ above this time Temperatures well above the ambient temperature specified by these appliances can cause malfunctions due to overheating of electrical components in the electrical distribution box.