SLUAB09 October 2025 AMC0386-Q1 , TPS61170 , TPS61170-Q1 , TPSI2140-Q1
1.3.2 High Potential Testing
Typically, a Hi-pot test is performed between the AC side of the onboard charger and protective earth. Figure 1-4 illustrates the standard Hi?pot test setup. According to GB/T?18487.1?2023, a test voltage of?two 830V?DC is applied when the rated insulation voltage of the equipment is between?690V and?800V. The Hi?pot test imposes two principal requirements on the IMD circuit:
- Withstand voltage: The IMD must tolerate the full?stress of two?830V?DC without degradation or failure.
- Leakage current limit: During the voltage application, the measured current leakage must remain below the threshold specified by the standard.
Figure 1-4 Diagram of Hi-pot
Testing