| 摘要 |
Disclosed is a construction machine having an electric operating system. The electric operating system includes a first insulation resistance degradation detection device 90A, the detection device 90A including a first voltage waveform generation device 100A and a first detection section 99A, the first detection section 99A being connected to an electrical storage device 24 and to the first voltage waveform generation device 100A with respect to a relay 56 and adapted to detect degradation in the insulation resistance of the electrical storage device 24 by measuring waveform changes input from the first voltage waveform generation device 100A, and a second insulation resistance degradation detection device 90B, the detection device 90B including a second voltage waveform generation device 100B and a second detection section 99B, the second detection section 99B being connected to a drive system 55 and to the second voltage waveform generation device 100B with respect to the relay 56 and adapted to detect degradation in the insulation resistance of the drive system by measuring waveform changes input from the second voltage waveform generation device 100B. |
