| 摘要 |
PURPOSE: A distribution board is provided to prevent dewfall in a box due to temperature difference between the inside and the outside of the box by insulating the box using an air layer formed by a dual wall. CONSTITUTION: A rear outer plate(11) is installed in a wall(10). A rear fixing plate(12) is separately fixed to the front of the rear outer plate to form an air layer(15). A lateral inner plate(13) protrudes from the front of the circumference of the rear fixing plate. A lateral outer plate(14) is airtightly installed to correspond to the rear outer plate. An insulation material is installed between the rear outer plate and the rear fixing plate. |
