In this invention, when there is an increase in dust inside the enclosure, the dust collecting unit is automatically operated, so that the occurrence of electric accidents due to the accumulation of dust can be prevented in advance, and a switch box in which a number of switch terminals for distribution are integrated. Separately installed inside the enclosure reduces the possibility of dust accumulation and fire, while the interior surface of the enclosure is coated with a thermoplastic polyurethane (TPU) composite composition, and a polyethylene-based raw material and a foaming agent are mixed on the interior surface of the switch box. It relates to a switchgear device that can reduce the likelihood of electric accidents and fires by being coated with an insulating layer consisting of a first insulating layer using a foamed polyethylene mixture and a second insulating layer using a microporous polyolefin-based synthetic resin, The configuration of the present invention includes a case in which a space is formed inside and a condensation prevention pad is attached to the outer surface, a door installed in the front of the case and a condensation prevention pad is attached to the outer surface, and the Switchgear installed inside an enclosure and coated with an insulating layer on the inner surface of a first insulating layer made of a foam-type polyethylene mixture mixed with a polyethylene-based raw material and a foaming agent and a second insulating layer made of microporous polyolefin-based synthetic resin The box is installed on the front of the switch box and the inner surface includes an insulating layer consisting of a first insulating layer using a foam-type polyethylene mixture mixed with a polyethylene-based raw material and a foaming agent and a second insulating layer using a microporous polyolefin-based synthetic resin. A coated switch box door, a plurality of distribution switch terminals installed inside the switch box, a power supply unit installed on the upper part of the switch box and connected to a plurality of switch switch terminals, and the aforementioned It includes a dust collecting unit installed on the inner upper part of the switch box.
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