Lifting operation is strictly prohibited in several strong winds.

Legal analysis: hoisting operation is prohibited above category 5 wind.

When the wind speed exceeds the conditions specified by the equipment manufacturer, it is forbidden to operate the crane. If it is not stipulated by the manufacturer, when the wind force is higher than level 5, hoisting operation is prohibited.

According to the standard, high-altitude operation should be stopped in windy weather above level 5, and reliable anti-skid and cold-proof measures should be taken in high-altitude operation in bad weather such as rain and snow. In case of strong wind above level 5 (inclusive), the hoisting operation of large formwork should be stopped; The hoisting operation of tower crane must be stopped in strong winds above level 6, and the demolition operation shall not be carried out in rain, snow, fog and wind above level 4.

Legal basis: Article 2 of the Standardization Law of People's Republic of China (PRC) The standards mentioned in this Law (including standard samples) refer to the technical requirements that need to be unified in agriculture, industry, service industry and social undertakings.

Standards include national standards, industry standards, local standards, group standards and enterprise standards. National standards are divided into mandatory standards and recommended standards, while industry standards and local standards are recommended standards.

Mandatory standards must be implemented. The state encourages the adoption of recommended standards.