Test of a testing device for determining a voltage state of a high-voltage vehicle electrical system

Abstract

A method for testing a testing device for determining a voltage state of an on-board high-voltage electrical system of a motor vehicle includes establishing a predetermined voltage state in the on-board high-voltage electrical system by supplying a test voltage to the on-board high-voltage electrical system and determining the voltage state with the testing device and comparing the determined voltage state with the predetermined voltage state This ensures that, before maintenance work on the on-board high-voltage electrical system is performed, a voltage-free state of the on-board high-voltage electrical system determined by the testing device is actually present, thereby eliminating risk to maintenance personnel due to an accidentally applied voltage.

Dependencies are inferred from the claim text.