Power cable online power frequency voltage withstand test device

The invention provides a power cable online power frequency voltage withstand test device which comprises a cable extrusion machine, a crawler traction machine which is arranged behind the cable extrusion machine and is matched with the cable extrusion machine, and a wire take-up wheel arranged behind the crawler traction machine. A cooling water tank, a blower and a power frequency voltage withstand test device are orderly arranged between the outlet of the cable extrusion machine and the inlet of the crawler traction machine. The control box output end of the power frequency voltage withstand test device is respectively connected with an acousto-optic alarm and a data acquisition unit. The data acquisition unit is connected with a factory server through a data transmission unit. The power cable online power frequency voltage withstand test device has the advantages of scientific design, more comprehensive cable inspection, and high rate of qualified products.