1, the power terminal wiring must be carried out by a professional electrician, welder or power supply line failure, the welder should contact the power electrician to deal with;
2. Welders wear special protective clothing, insulated shoes, protective gloves and other labor protection products that meet the requirements of professional protection. Clothing must not be worn with rolled sleeves. Protective masks must be worn to avoid eye damage. Before welding, harmful, flammable, and explosive materials must be eliminated. The pressure inside the container or pipe must be relieved to eliminate the sealed condition of the container (open screw cap). ;
3. Check whether there are flammable materials around the site, if any, clear or take reliable isolation and protective measures, and provide special personnel for custody;
4. When working at height, special personnel must be required to pull on the brakes and adjust the power supply. The power conductors shall be lifted with ropes after the power is cut off, and shall not be carried along or cross from a height;
5. It is not suitable for open-air welding operations in rain, snow and windy weather. If it is really needed, measures such as sheltering from rain, snow, electric shock and sparks should be taken;
6. When welding, welders should not touch welding objects or other conductive objects;
7, welders require other maintenance personnel away from the structural parts of the head. It is forbidden to weld sealed containers.
8. The welder must be insulated from the weldment, and the container peripheral must be supervised;
9. After welding is completed, the welding position shall be isolated or specially guarded to prevent scalding of other personnel and fire accidents;
10. After the work is over, check the ground, extinguish the fire, and cut off the power before leaving.
11. The welder must check whether the tempering preventer and all the tools are in good condition before working. The fasteners of the acetylene bottles, cylinders, hose joints and valves should be firm and firm, with no looseness, breakage and leakage. Oxygen cylinders, their accessories and hose tools must not be oiled.
12. Oxygen and acetylene tubes must be inspected before work. If there is leakage, aging, bulging or deterioration, they must not be used. The tubes should be kept clean and free of foreign matter. Oxygen tubes and acetylene tubes must not be used interchangeably.
13. Before work, check whether there are flammable materials around the site. If any, clear or take reliable isolation and protection measures, and provide special personnel for custody;
14. Before connecting the oxygen gauge (pressure reducer), use a special spanner to slightly open the oxygen cylinder valve, release some oxygen, blow off the dirt and impurities from the bottle mouth, and then close it. During operation, the staff should stand on the side of the air vent and open it. When the gas is opened, the valve must not face downwards;
15, acetylene, oxygen cylinders should be placed vertically to prevent dumping, is strictly prohibited and oxygen cylinders and other flammable products at the same time;
16. When opening oxygen or acetylene bottle valves, it is forbidden to tap with iron tools. Use special tools to slow down the operation, prevent sparks, and stand against the regulator;
17. Before the ignition, quickly open the welding torch valve, use oxygen to blow the air, check the nozzle outlet. Avoid use when there is no wind, and avoid aiming at the face when trying out winds;
18, ignition, oxygen valve should be slightly open, and then open the acetylene valve, stop using, first close the acetylene valve, and then close the oxygen valve to prevent the flame down. In the welding, when the explosion of the welding torch or the vibration of the hand is felt, the acetylene valve should be immediately closed and allowed to cool before being repaired. The ignited welding torch is not allowed to be thrown at random and the fire is extinguished when necessary;
19. When working on a machine (or high place), a safety protection device should be installed on the lower part of the cutting part to prevent the metal solution from falling and causing fire or burn to other personnel;
20. Understand the condition of the fire-fighting equipment of the equipment and ensure that there are 2 or more dry powder fire extinguishers around the welding site; after the cutting work is finished, the ground shall be inspected to extinguish the fire;
21. When using an oxygen cylinder, do not run out of gas in the bottle, leaving at least 1-2 atmospheres of gas;
22. When used, it must be ensured that the oxygen cylinder should not be less than 10m away from the open flame.
Welders must do the following when placing and using acetylene bottles:
23, the use of acetylene cylinders, transportation environment temperature does not exceed 40 °C, acetylene bottles shall not be close to heat sources and electrical equipment, summer exposure, and the open fire distance is generally not less than 10 meters;
24. When the work place is not fixed and moves more frequently, it should be installed on a special car. It should be avoided to keep the acetylene bottle and the oxygen bottle together.
25. When using, special pressure reducing valve and tempering preventer must be installed. When opening the valve, the operator should stand on the side of the valve port and the action should be gentle;
26. The gas in the acetylene bottle must not be used up, and the pressure should not be less than 1 bar.
27. It is forbidden to store acetylene bottles together with oxygen bottles and other flammable products.
28. Before use, check the oxygen cylinder. The oxygen cylinder should have a base, shock-proof rubber ring and a safety helmet, and have the obvious symbol of "oxygen". It is not allowed to put together with other cylinders.
29, when handling oxygen cylinders, should first wear the hardhat tightened, should be gently to prevent vibration, prohibit the throwing or rolling, not allowed to move together with flammable oils and fats;
30. Special care should be taken during the winter to avoid collisions and vibrations of the oxygen cylinder to prevent brittle fracture.
China Labor Insurance Network
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