Do not weld on containers, which have held combustible materials unless procedures are followed. Check before welding. Containers which Welding sparks can Remove flammable materials from welding area or shield have held cause fire or from sparks, heat. combustibles explosion Keep a fire watch in area during and after welding. Flammable materials Keep a fire extinguisher in the welding area. fire retardant clothing and hat. Use earplugs when welding overhead. Select a filter lens, which is comfortable for you while welding. Arc rays can burn Process: gas-shielded Always use helmet when welding. eyes and skin arc most severe Provide non-flammable shielding to protect others. Wear clothing, which protects skin while welding. Evaluate adequacy of ventilation especially where electrode requires special ventilation or where gas may displace Metal enclosure breathing air. Wetness If basic electric shock precautions cannot be followed to Restricted entry Confined space insulate welder from work and electrode, use semiautomatic, Heavier than air gas constant-voltage equipment with cold electrode or stick Welder inside or on welder with voltage reducing device. workpiece Provide welder helper and method of welder retrieval from outside enclosure. General work area Keep cables, materials, tools neatly organized. Cluttered area hazards Connect work cable as close as possible to area where Indirect work welding is being performed. Do not allow alternate circuits (welding ground) through scaffold cables, hoist chains, or ground leads. connection Use only double insulated or properly grounded equipment. Electrical equipment Always disconnect power to equipment before servicing. Only use in open, well ventilated areas. Engine-driven Keep enclosure complete and guards in place equipment Turn off engine before refueling. Never touch cylinder with the electrode. Gas cylinders Never lift a machine with cylinder attached. Keep cylinder upright and chained to support. Electric shock The physiological effects of electric current If electric current passes through the body, it can cause various injuries such as: - Burns - Cramp - Auricular fibrillation - Damage to the central nervous system.
Welding sparks can cause fire or explosion Containers which have held combustibles Flammable materials Do not weld on containers, which have held combustible materials unless procedures are followed. Check before welding. Remove flammable materials from welding area or shield from sparks, heat. Keep a fire watch in area during and after welding. Keep a fire extinguisher in the welding area. fire retardant clothing and hat. Use earplugs when welding overhead. Arc rays can burn eyes and skin Process: gas-shielded arc most severe Select a filter lens, which is comfortable for you while welding. Always use helmet when welding. Provide non-flammable shielding to protect others. Wear clothing, which protects skin while welding. Confined space Metal enclosure Wetness Restricted entry Heavier than air gas Welder inside or on workpiece Evaluate adequacy of ventilation especially where electrode requires special ventilation or where gas may displace breathing air. If basic electric shock precautions cannot be followed to insulate welder from work and electrode, use semiautomatic, constant-voltage equipment with cold electrode or stick welder with voltage reducing device. Provide welder helper and method of welder retrieval from outside enclosure. General work area hazards Cluttered area Keep cables, materials, tools neatly organized. Indirect work (welding ground) connection Connect work cable as close as possible to area where welding is being performed. Do not allow alternate circuits through scaffold cables, hoist chains, or ground leads. Electrical equipment Use only double insulated or properly grounded equipment. Always disconnect power to equipment before servicing. Engine-driven equipment Only use in open, well ventilated areas. Keep enclosure complete and guards in place Turn off engine before refueling. Gas cylinders Never touch cylinder with the electrode. Never lift a machine with cylinder attached. Keep cylinder upright and chained to support. Electric shock The physiological effects of electric current If electric current passes through the body, it can cause various injuries such as: - Burns - Cramp - Auricular fibrillation - Damage to the central nervous system.
environment_safety_course.docx