Compliance with the HV operating status B3 or B4 in the event of overvoltage shall be verified; see Table “HV operating status”. The operating behavior of the HV component shall be documented and verified. It shall be verified that the required HV operating status for the range of unlimited operating capability is reestablished if the DC HV voltage exceeds the maximum operating voltage and then falls again below the maximum operating voltage.

The voltage increase and decrease for the test pulse overvoltage shall be effected in accordance with Table “Maximum voltage dynamics”, with the exception of the HV battery.

For the HV battery the voltage increase for the test pulse overvoltage shall be effected with the maximum slope in accordance with Table “Dynamic parameters” up to the time when the switching equipment switches off. Then, i.e. with the switching equipment switched on, the voltage increase and decrease shall be performed with the maximum voltage dynamics in accordance with Table “Maximum voltage dynamics”.

Test criteria for the HV operating status B3:

• Operational, specified state
• Automatic reestablishment of intended performance in the event of a return to
  the HV operating status B1 or B2
• Fault memory entry

Test criteria for the HV operating status B4:

• Operational, specified state
• Reestablishment of intended performance following a reset or simple
  intervention (e.g. ignition state transition, vehicle restart)
• Fault memory entry

La prova viene svolta con Netwave e il software net.control.