Introduction:
With IEC60439-3 standard, LWHT series distribution box is attractive and durable, safe and reliable, which is widely used in various places such as factories, mansions, residences, shopping centers and so on.
consumer units distribution box electrical appeared in the daily operation, workshop of large enterprise, due to some large workshop, plant power consumption is very large, so the circuit in case of failure, will cause serious safety accidents, the reference of distribution box, power distribution ark, realize the convenient and fast free power or power, on the one hand, to ensure the safety of electricity, on the other hand reduced the loss of electrical equipment, Prolong their service life, in industrial production has been widely used and popularized.
Whether it is the inside of our machine room or the inside of our power distribution cabinet, we should carry out regular checks to find possible problems in time, so as to effectively ensure the normal operation of the internal components of our power distribution cabinet, and the internal accessories of our power distribution cabinet also need to do regular checks. The check of the internal accessories of the power distribution cabinet is mainly to see whether the exhaust air is abnormal, whether the normal heat dissipation of the equipment inside the power distribution cabinet can be guaranteed, and the internal temperature of the cabinet can be detected in time. In addition, we should pay attention to the use and wear of power supply inside the power distribution cabinet to minimize the occurrence of accidents.
1. All kinds of low-voltage electrical appliances, mostly class A insulation, they in the long-term operation of the limit allowable temperature rise to 65℃. High temperature in the distribution cabinet, so that the internal heat of low-voltage appliances in operation is difficult to send out, so after a certain period of time because of insulation aging and burn out; Plastic insulated wires will also be subjected to heat aging and breakdown.
2. The electronic products in the consumer units distribution box electrical, such as residual current action protector and electronic metering meter, will seriously affect the service life of the product when running at high temperature, and will also affect the stability of the performance of the protector, the reliability of the operation and the accuracy of measurement.
3. Reactive power compensation capacitors and fuses operating at high temperatures also shorten their life. Distribution box running outdoors, it is not only affected by direct sunlight to produce heat, at the same time in the operation of their own will generate heat, so the high temperature in midsummer season, the temperature of the enclosure will reach + 60 ℃ above, then the temperature of the electric and considerably more than the "national standard" regulation of the environment temperature, thus can cause failure distribution box. So in order to prolong the service life of our distribution box, we should try to use the distribution box in accordance with the above requirements.
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