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.
Low voltage electrical appliance of waterproof plastic flush mount electrical distribution box composed of fuse, AC contactor, residual current protection device, capacitor and electric measuring digital meter. These low-voltage appliances are designed and manufactured according to GB1497 "Basic Standard for Low-voltage Appliances", which stipulates that the upper limit of ambient air temperature does not exceed 40. The average ambient air temperature in 24 hours does not exceed 35. The lower limit of ambient air temperature is -5 or -25.
One of the important functions of electrical flush mount electrical distribution box is to safely protect electrical control equipment and manpower.
All kinds of electrical equipment must work in a specific environment, including temperature, humidity, altitude, wind, sand, rain and snow, lighting, dust, corrosive gas or liquid, small animals and other environmental factors that have a great impact on the electrical control box. In order to make the electrical control equipment can work safely and reliably, and have a certain service life, it is necessary to take the control box design structure required technical precautions.
If, for example, more than 1000 meters above sea level, the air density is smaller, thin air, control parts in the cooling conditions will become worse, parts temperature is too high, lead to reduce parts life, serious cases, even parts of combustion happens, therefore, the structural design of the enclosure, cooling problems must be considered, increase the cabinet volume, lower parts installation density, Or forced cooling measures,
In addition, ships, offshore wind turbines and offshore oil drilling platform use of electronic devices work in strong corrosion of sea water fog all the year round, if do not take anti-corruption measures needed for the body structure design, will shorten the service life of electric control device, can choose the material with good corrosion resistance, stainless steel, engineering plastics, etc.), you can also choose heavy-duty coating on metal surface, Make a high quality surface.
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