This photovoltaic arc detection system identifies both serial and parallel arcing by monitoring the DC voltage and current spectrum, providing comprehensive safety to mitigate hazards. However, PV systems typically utilize DC current, which can generate arcs leading to fires and property damage, making arc detection crucial for safety. And this is exactly where AFCI technology comes into play:. Huawei Technologies Co. As of May 2020, such inverters have been employed in 54 countries, with a total of 25,000 units shipped globally. To. The Arc Fault Detector is designed for real-time detection of arc faults in DC circuits. Everyone in the PV industry knows that DC arcs are the "invisible bombs" of power plants—they can be caused by cracked modules, loose wiring, or even rats chewing through cables. Once an arc occurs, a fire will break out if not handled promptly.