來源：http://www.leblogdejc.com/ 發布時間：2021-10-15 瀏覽次數：
Generally, when welding and cutting operations are carried out in basements, tunnels, metal containers and relatively closed places, due to special factors such as poor air circulation, inconvenient access, insufficient light, poor site and inconvenient activities, accidents are easy to occur in welding and cutting operations and it is not easy to rescue. Therefore, the following safety measures must be strictly taken.
(1) Before operation, the situation inside and outside the workplace must be carefully investigated. It is necessary to find out whether the outdoor buildings or other structures have an impact on indoor hot welding and cutting, and whether there are flammable and explosive substances in the room. If necessary, the indoor gas shall be sampled and analyzed to confirm safety before entering the room for operation.
(2) Acetylene generator, oxygen cylinder and electric welding machine are not allowed to be placed in the room of hot welding and cutting. Carefully check the oxygen acetylene pipeline and welding and cutting torch for gas leakage, and strictly prevent the explosion accident caused by the concentration of oxygen acetylene gas in the room. When welding and cutting are suspended, take the oxygen acetylene pipeline and welding and cutting torch out of the room. Open all doors, windows or valves to maintain air circulation as much as possible, and take mechanical ventilation if necessary.
(3) When using welding and cutting equipment for electric welding, the welding and cutting place shall be kept dry, and the insulation protection equipment shall be strictly checked to see whether it meets the safety requirements. When working in metal containers, welders are not allowed to touch their heads, backs, etc. or parts without insulation against metal containers. All lighting equipment shall adopt low-voltage lamps.
(4) It is forbidden to introduce oxygen into the room to regulate the air in the operation place