Industry Solutions | High Voltage Power Safety

1. Industry Background

New energy vehicles have high voltages, and when the human body accidentally touches high voltage electricity, serious injuries will occur. Whether it is R&D, production, or after-sales technicians, if they do not correctly understand the high voltage risks of new energy vehicles and properly handle the protection of the high-voltage working areas involved, serious high-voltage injuries will occur.

2. High voltage electric shock

The premise for electric shock to occur to the human body is that a circuit is formed between the human body and the source of shock, and electric shock will only occur after current flows through the human body. Next, let’s take a look at the non-electric shock and electric shock situations:

       Non-electric shock situation : In this situation as shown in the figure below, the human body will not be electrocuted because no circuit is formed between the human body and the DC power supply.

       Electric shock: When the high-voltage components of a new energy vehicle fail to ground to the vehicle body, the human body may suffer an electric shock accident under the same circumstances.

3. High voltage line identification:

In electric vehicles, any live parts in a Class B voltage circuit have high-voltage warning signs on them. The color of the wires has specific meanings. Bright orange cables are used to warn of high-voltage electrical hazards. Pay attention to some orange-yellow wires because they may pose a high-voltage hazard.