| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily enable addition, modification and forgotten works for a duct unit by centralizing the piping and wiring to a distribution panel from a distribution panel and to a high voltage or low voltage apparatus from the distribution panel inside such a duct unit. SOLUTION: A lead-out part 10 of a duct unit 9 integrating a high-voltage/ low-voltage apparatuses is connected from a power distribution panel 8 in ESP, and this duct unit 9 is provided with a function for connecting a piping 24 and a rail 25 for feeding the wire. Moreover, a connection box 11 is connected to the lead-out 10 of the duct unit 9, and a check port 16B is provided at the lower part of the connection box 11 in order to check the wiring 13 and piping, even after the ceiling is extended. As a result, a high-voltage/low-voltage apparatuses can be accommodated within one unit to enhance workability and moreover addition, modification and forgotten works can be executed easily by using the rail 25 for wire feeding.</p> |
