| 摘要 |
PROBLEM TO BE SOLVED: To provide a power distribution board capable of improving communication performance with a DC load when communicating with the DC load by superposing a communication signal on a DC cable runs.SOLUTION: The power distribution board includes: a plurality of branch cable runs W21-W23 branching DC power supplied from a DC power source 2 to a plurality of systems; branch switches K1-K3 provided to the branch cable runs W21-W23 respectively and supplying electric power to power distribution cable runs W31, W32, and W33 to which the DC load 4 is connected and breaking the power supply; and communication lines L1-L3 transmitting the communication signal to be superposed on the branch cable runs W21-W23. Filters F1-F3 having at least a frequency band of the communication signal as a stop band are provided to the branch cable runs W21-W23 to be positioned between connection points X1-X3 between the communication lines L1-L3 and branch cable runs W21-W23, and the DC power source 2. |
