Place the power plug and vehicle plug with the manufacturer's recommended cable on the cement floor at will, and apply a pressure of 11000 ± 500N at a speed of (8 ± 2) km/h over the power plug or vehicle plug (tire inflation pressure 220 ± 10 kPa) to test the ability of the power plug or vehicle plug to withstand rolling. Automobile tire rolling test device according to standard GB/T20234.1-2011