| 摘要 |
PROBLEM TO BE SOLVED: To ensure the airtightness required for a highly airtight housing by making a wire insertion port for passing a wire to be connected with a distribution board through a wall, stopping a heat insulating panel to the vicinity of the wire insertion port by means of screws, and then fixing a distribution board to a wall through the heat insulating panel thereby eliminating the gap in the vicinity of the wall of the distribution board. SOLUTION: When a distribution board 1 is fixed to a wall 2, a wire insertion port 4 for passing a wire to be connected with the distribution board 1 is made through the wall 2. A heat insulating panel 5 is then fixed to close the wire insertion port 4 by means of screws 6. A hole 7 corresponding to the size of the wire 3 is made through the thermal insulation panel 5 and the wire 3 is passed through the hole 7 and supported therein. The body of the distribution board 1 is secured by body securing screws 8. The wire 3 led in from the wall 2 through the wire insertion port 4 is connected with the distribution board 1. Since the distribution board 1 is fixed to the wall 2 while sandwiching the heat insulating panel 5 between the body of the distribution board 1 and the wire 2, the air is prevented from entering into the room or leaving therefrom thus keeping the airtightness of a housing. |
