외기에 직접 면하는 외벽부위용 결로 방지 콘센트 박스 개발

Purpose: It is a practical custom that power outlet boxes are installed in the exterior wall after taking out the existing insulation. Additionally, since generic type outlet boxes are made of steel that has higher conductivity, power receptacle can be easily chilled down; condensation thus easily occurs in the surface of the receptacle and inner surface of the outlet box. Method: We develop a new condensation-free outlet box that is made of phenolic resin layers between which air cavity and insulation are inserted. The developed outbox is also covered by urethane gasket to prevent the indoor air flowing into the outlet box. Result: Compared to steel outlet boxes and other available phenolic resin outlet boxes, the developed outlet box turns out to be more insulating in heat transfer simulations. In a physical field test, the developed outlet box outperforms the steel outlet box in terms of preventing condensations, even in the situation that condensation is apparently expected.