Welding safety

WELDING SAFETYHazardFactorsto ConsiderPrecaution SummaryWelding sparkscan cause fire orexplosionContainerswhich have heldcombustiblesFlammablematerialsDo not weld on containers which have heldcombustible materials (unless strict AWS F4.1procedures are followed). Check beforewelding.Remove flammable materials from weldingarea or shield from sparks, heat.Keep a fire watch in area during and afterwelding.Keep a fire extinguisher in the welding area.Wear fire retardant clothing and hat. Useearplugs when welding overhead.Arc rays can burneyes and skin Process: gasshieldedarcmost severeSelect a filter lens which is comfortable for youwhile welding.Always use helmet when welding.Provide non-flammable shielding to protectothers.Wear clothing which protects skin whilewelding.Confined spaceMetal enclosureWetnessRestricted entryHeavier than airgasWelder inside oron workpieceCarefully evaluate adequacy of ventilationespecially where electrode requires specialventilation or where gas may displacebreathing air.If basic electric shock precautions cannot befollowed to insulate welder from work andelectrode, use semiautomatic, constant-voltageequipment with cold electrode or stick welderwith voltage reducing device.Provide welder helper and method of welderretrieval from outside enclosure.