| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilation device having a configuration in which dew condensation water condensed in a ceiling and water droplets coming from outside are allowed to drop downward before entering an electrical equipment box by coming down a power source line.SOLUTION: A bridge-shaped electric wire protection cover 1 is provided in a position facing an opening 3a for incoming of a power source line 6 on a side surface of an electrical equipment box 3, and the power source line 6 comes into the opening 3a of the electrical equipment box 3 in such a manner that it is suspended from the ceiling and it passes through the electric wire protection cover 1. Thus, dew condensation water condensed at an upper part of the power source line 6 and droplets coming down from outside are allowed to drop downward at the electric wire protection cover 1 part, and this brings about an effect of preventing water from entering the electrical equipment box 3. |
