African rural areas are mostly open terrain with low and simple structures, lacking complete surge protection facilities. In addition, some areas have frequent thunderstorms, and direct and induced lightning are prone to invade indoors along the power supply line. As a key node of the line, lighting electrical Ready Board Box must be equipped with surge protection devices (SPD).

The local power grid lines are easy to install and have low insulation levels. The instantaneous high voltage generated by lightning strikes can quickly penetrate the insulation layer of the lines, not only burning out lighting equipment such as lamps and sockets, but also causing short circuits and fires in the lines, threatening the safety of wooden and thatched houses, and even causing electric shock injuries to personnel. At the same time, the stability of rural power supply is poor, and lightning interference can easily lead to sudden voltage changes, damaging core components such as circuit breakers and leakage protection in lighting electrical ready boards, exacerbating power supply failures.

Installing a suitable low-voltage power surge protection device can quickly discharge lightning current, suppress overvoltage, protect electrical ready boards and backend electrical equipment, and reduce the risk of fire and electric shock. Considering the limited maintenance conditions in rural Africa, surge protection modules with simple structure, strong durability, and no frequent maintenance should be selected. Combined with simple grounding devices, they can significantly improve electrical safety and adapt to the actual local usage environment. This is a necessary protective measure to ensure basic lighting and electrical safety.