Accompanied by thunderstorms and strong winds, the air humidity increases and the insulation of electrical equipment decreases. This poses a serious threat to electrical equipment with compromised tightness, making it prone to short circuit hazards.

Due to the transmission of lightning waves generated by lightning strikes to substations or power plants, the insulation of transformers, generators, and other electrical equipment in their area may be damaged. And when the generator is struck by lightning, strong currents may burn out the insulation and iron core.

The increase in precipitation poses a challenge to the drainage measures of substations and power plants. Poor drainage can easily cause the cable trench to be filled with water or even backflow into high-voltage electrical cabinets, posing serious safety hazards.

Once outdoor electrical equipment is subjected to direct lightning strikes, it may cause serious damage or fire to the equipment.

Severe weather and powerful lightning can cause overvoltage in power lines, leading to short circuits and protection tripping.

Transmission lines may experience short circuits due to phenomena such as flashover caused by atmospheric overvoltage.

During thunderstorms, power workers are unable to perform safe outdoor patrols, which poses a serious challenge to their personal safety.

　　As a special weather phenomenon, thunderstorm weather can be roughly divided into two categories: frontal thunderstorm and air mass thunderstorm. Thunderstorms between March and June are mostly frontal thunderstorms, while those between July and September are mostly air mass thunderstorms. In coastal and southern regions of China, there is also an annual rainy season, and lightning is a natural weather phenomenon that has a significant impact on electrical products. Therefore, many weather conditions are designed and installed with corresponding lightning surge protectors to prevent accumulation.