| 摘要 |
PURPOSE: To achieve selective supply of a power with a variety of qualities related to the requisites of a device that is connected to a bus way. CONSTITUTION: A system includes a bus way 22, that includes a first power conductor and a second power conductor, a power supply unit 28 that is electrically connected to the bus way 22 so that a power of a first quality is supplied to the first power conductor and a power of a second quality is supplied to the second power conductor, first and second electrical conductors, and first and second plugs that are selectively constituted, so that they an be connected to the bus way 22. The first plug connects the first electrical conductor to the first power conductor, and the second plug connects the second electrical conductor to the second power conductor. |
