What weather, in principle, is it forbidden to use fire in the open air?

When the wind force is above level 5 (including level 5), it is forbidden to do hot work in the open air.

In the weather above category 5 wind (including category 5), open-air hot work is prohibited in principle, and relevant safety protection measures are taken. Note: 1. Before hot work, the risk factors should be identified, risk assessment should be carried out, safety measures should be taken, and a safety operation plan should be prepared if necessary. 2. Hot work is strictly prohibited if the hot work permit has not been obtained, safety measures or safety operation plans have not been implemented, on-site operators or guardians have not been set up, and the safety operation plan has changed and has not been approved. 3. The hot work permit is the basis of hot work on site, which can only be carried out in the same medium, the same equipment, the specified measures and time range, and shall not be altered or signed. 4. It is not allowed to use fire on containers, equipment and pipelines containing flammable and toxic media. When hot work is really necessary in production, a reliable safety work plan and emergency plan should be formulated before hot work can be carried out.

Classification of hot work

Hot work is divided into three grades: super hot work, first-class hot work and second-class hot work.

4。 1, special hot work

Hot work in special dangerous places such as flammable and explosive production devices, pipelines, storage tanks and containers under production conditions. Hot work without substitution under pressure is managed according to special hot work.

4。 2, the level of hot work

Hot work in inflammable and explosive places, except special hot work. The hot work on the pipe gallery in the factory area is managed according to the first-class hot work.

4。 3, secondary hot work

4。 3。 1. Hot work in no-fire area except special hot work and first-class hot work.

4。 3。 2. After all production devices or systems stop running, and the devices are cleaned, replaced, sampled and analyzed, and safety isolation measures are taken, according to their fire and explosion risks, with the approval of the factory safety (fire prevention) department, hot work can be managed according to the second-level hot work.

To sum up, it's Bian Xiao's answer about what weather prohibits open-air hot work in principle, hoping to help you.

Legal basis:

Article 2 of the Hot Work Safety Management System stipulates the hot work safety management process, hot work management types, hot work approval procedures and approval authority management, hot work responsibility management and hot work safety rules.