Does Electric Vehicle Charging Produce Radiation?

[McCarter]

Electric vehicle charging does produce radiation, but the intensity is very low and has no impact on human health. In fact, electric vehicles use direct current (DC), which has a fixed direction of transmission and an infinitely large cycle of change, theoretically meaning its frequency is zero. In other words, the magnetic field generated by DC is a constant magnetic field, not electromagnetic radiation produced by electrical excitation. Therefore, most of the electromagnetic radiation from electric vehicles comes from the electronic devices installed in the car itself, which is no different from that of fuel-powered vehicles. The United Nations authoritative safety standard for electromagnetic field strength is 100μT. The instantaneous radiation during a mobile phone call can reach 3μT; a hairdryer's radiation can reach 10μT; the national standard for mobile communication base stations is 40μT. However, the radiation from cars does not exceed 20μT, and this applies to all types of vehicles. Some pure electric vehicles even have lower electromagnetic radiation than certain fuel-powered cars. Even near the charging port of an electric vehicle, the radiation is only about 10μT, and if tested inside the car, there is virtually no electromagnetic radiation. Although the electromagnetic radiation from new energy vehicles has no impact on health, it is advisable not to stay inside the car while charging, as the process involves connection to high-voltage interfaces. For safety reasons, it is better to leave the car during charging.

[PiperRose]

I used to worry about this issue too, but after careful research, I found that electric vehicle charging does generate electromagnetic radiation, mainly low-frequency non-ionizing radiation. This type of radiation is similar to that from household microwaves or mobile phones. The national standard GB/T18387 stipulates that vehicle radiation must be below 30 microteslas per meter. I measured the magnetic field near the charging gun, which was about 1 to 3 microteslas, and it dropped to below 0.5 microteslas at a distance of half a meter, making it safer than many household appliances. Long-term exposure to radiation from mobile phones and computers is even higher, so waiting nearby during daily charging is completely safe. Of course, for pregnant women or those with electronic hypersensitivity, it's recommended to maintain a distance of one meter.

[DiGideon]

As someone with a physics background, I find this concern quite interesting. The flow of electric current in wires inevitably generates electromagnetic fields, and during charging, the maximum is just a few microteslas, which is 20 times weaker than the Earth's own magnetic field. Real ionizing radiation, like X-rays, is what damages cellular structures. Non-ionizing radiation from charging at best slightly heats a metal spoon. Instead, what should be watched for is aging charging stations that might leak electricity—radiation is completely not an issue. Car manufacturers have added double-layer shielding to charger casings, making their radiation levels lower than those of hair dryers. The main radiation sources in daily life are mobile phone signal towers; electric vehicles really don't rank.

[Madeline]

Once my child asked me this question, so I specifically looked up international standards. I found that both the EU's EN50500 and the US's SAEJ5515 testing standards are stricter than China's, and the radiation data from electric vehicles is far below the limits. The main radiation area is concentrated within ten centimeters of the charging port, and beyond this distance, it's safe. If you're worried, just avoid leaning over the charging port to look. Compared to this, the gasoline fumes at fuel stations are more harmful. When we installed the charging pile at home, we chose a corner in the garage, and we don't go near it when passing by. We've been using it for three years with no issues.