Legal analysis: 1. Welding operation area wind speed when the manual arc welding more than 8m / s (five winds), gas shielded arc welding and flux cored wire arc welding more than 2m / s, should be set up to prevent the wind shed or to take other wind protection measures. Welding operation area in the production workshop with through the wind or blower, should also be set up in accordance with the above provisions of the wind device; 2. Welding operation area of the relative humidity shall not be greater than 90%; 3. When the surface of the weldment is wet or covered with snow and ice, it should be heated to remove moisture and moisture removal measures; 4. Welding operation area, the ambient temperature is lower than 0 ℃, should be the welding area of the components of the direction of the welding area is greater than or equal to two times the thickness of the steel plate and is not less than 100mm. Scope of the parent material, heated to more than 15 ℃ before welding, and in the welding process should not be lower than this temperature. The actual heating temperature should be based on the structural characteristics of the component, the type and quality of steel grade and weldability, welding materials, molten metal diffusion of hydrogen content, welding methods and welding heat input and other factors to determine the heating temperature should be higher than the preheating temperature of the weld at room temperature, and by the welding technology responsible for the development of a program approved by the operating program can be implemented only after the approval. Operations program should ensure that the welder's operating skills are not affected by the low temperature of the environment, while taking the necessary thermal insulation measures for the components; 5. Welding operations area ambient temperature below 0 ℃, low alloy steel and stainless steel is not allowed to weld the operation; but can be taken to insulate the warming and wind protection measures to ensure that the ambient temperature of the welding operations area is not less than 5 ℃ when the welding operation is allowed to carry out the welding operation.
Legal basis: "Chinese People's **** and State Environmental Protection Law"
Article 40 The State promotes clean production and resource recycling.
The relevant departments of the State Council and local people's governments at all levels shall take measures to promote the production and use of clean energy.
Enterprises shall give priority to the use of clean energy, the use of high resource utilization, low pollutant emissions of technology, equipment and comprehensive utilization of waste and harmless treatment of pollutants to reduce the generation of pollutants.
Article 42 Enterprises, institutions and other producers and operators that emit pollutants shall take measures to prevent and control the pollution and hazards to the environment caused by waste gas, waste water, waste residue, medical waste, dust, malodorous gases, radioactive substances, and noise, vibration, optical radiation and electromagnetic radiation generated in the course of production and construction or other activities.
Enterprises and institutions that emit pollutants should establish an environmental protection responsibility system to clarify the responsibilities of unit heads and relevant personnel.
The key emission units should be in accordance with the relevant provisions of the state and monitoring specifications for the installation and use of monitoring equipment, to ensure the normal operation of monitoring equipment, save the original monitoring records.
It is strictly prohibited to discharge pollutants illegally through concealed pipes, seepage wells, seepage pits, irrigation or tampering, falsification of monitoring data, or improper operation of pollution prevention and control facilities to avoid supervision.