High winds above several levels should stop aerial work.

The high-altitude operation should be stopped in strong winds above level 5. According to the standard, work at heights should be stopped in windy weather above level 5, and reliable anti-skid and cold-proof measures should be taken for work at heights in bad weather such as rain and snow.

Wind power refers to the strength of the wind blowing on an object. Generally speaking, according to various phenomena caused by wind blowing on objects on the ground or water surface, the magnitude of wind power is divided into 18, with the smallest being 0 and the largest being 17.

Wind speed is the forward speed of the wind. The greater the air pressure difference between two adjacent places, the faster the air flow, the greater the wind speed and the greater the wind force. Therefore, the magnitude of wind is usually expressed by wind power. The unit of wind speed is meters per second or kilometers per hour. When the weather forecast is released, the wind level is mostly used.

Aerial work refers to the work carried out by people at a height based on a certain position. The national standard GB/T 3608-2008 "Classification of Work at Heights" stipulates: "Any work at heights more than 2m (including 2m) from the reference plane of falling height that may fall is called work at heights." According to this regulation, the scope of aerial work in the construction industry is quite extensive. When working in a building, if working on a shelf more than 2m, it belongs to aerial work.