There are many factors in the daily use of equipment may affect the performance of the distribution box, such as whether the daily maintenance measures are scientific and reasonable, dust in the air, the temperature of the use environment, heat dissipation is good and the vibration of the equipment itself may affect the performance of the equipment, the main factors affecting the performance of the imitation Weichart cabinet.
The upper limit of ambient temperature of complete electrical equipment designed and manufactured according to national standards should not exceed 40℃ when it is running. However, the outdoor power distribution cabinet exposed in the hot sun in summer sometimes has a temperature of more than 60℃ due to direct sunlight, heat reflection from the cement floor and heat generated by the equipment in the cabinet.
The electrical contact increases the contact resistance due to high temperature, and the increase of contact resistance increases the heating, so the vicious cycle eventually leads to the contact burn out; At the same time, the high temperature will affect the stability of outdoor PDC protection performance, reliability of operation, and accuracy of measurement.
Dust prevention: Pay attention to dust prevention when using the device. Dust accumulation in a shelf for a long time greatly reduces the heat dissipation function and causes the abnormal operation of components such as fans, which causes certain noise. Therefore, in addition to taking certain dust-proof measures in the use of the device, it is also important to clean the device chassis daily.
Heat dissipation of the device: The normal operation of the power distribution box directly affects the heat dissipation of the device. If the heat dissipation is poor, the device may break down and cannot run normally.
Vibration noise generated by the equipment: The noise generated during the operation of the equipment is mainly caused by the hardness of the box and the connection mode of the box. If the material is thin, the chassis is not solid, in use with the built-in electronic equipment to generate resonance noise.
In addition, the chassis may be deformed and the board may be stuck on it. The chassis with too thin plates is weak in strength and prone to deformation, which damages the hardware. At the same time, the performance of the distribution box is affected due to the resonance noise of other parts.
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