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Arc Welding Safety

Arc welders use a powerful electric arc to make and repair plain, coated, or treated metal items. Welders can be stationary, electric powered or portable, diesel/gas powered.

Install electric-powered arc welders to code. Ground equipment and place it on an independent circuit with the correct-sized fuse or circuit breaker. Overloading circuits or improper installation can lead to fire, a ground fault, or equipment failure. Mount a safety disconnect switch near the user work area. Operate diesel/gas powered arc welders in well-ventilated areas to control combustion fumes. Do not add fuel to the engine while it is running or near open flame. Stop the engine and lockout the ignition before performing maintenance or repairs.

To protect your body from burns due to arc welding heat, ultraviolet light (UV), molten metal, and sparks, wear dark colored coveralls with long sleeves and pant legs. The coveralls should be fire retardant, cuffless, and pocketless with no holes, tears, or worn spots. A skullcap protects your head and hair. Leather gauntlet gloves and safety boots protect your hands and feet. Wear hearing protection in noisy environments and to keep sparks out of your ears.

Goggles or safety glasses and welding helmets/shields protect your eyes from flying sparks, chipped slag, and UV light. Welding helmets and shields should be non-reflective and free of cracks, gaps, and openings. Use the correct filter setting for the power output of the arc welder. Weld inside a screened area to protect coworkers. Portable screens, shields, and anti-flash goggles can also be used to protect visitors and coworkers.

Arc welding can reach temperatures greater than 10,000 degrees F, posing a fire and explosion hazard. Do not arc weld near flammables or combustibles. Avoid welding, cutting, or hot work on used drums, barrels, or tanks where residual fumes can ignite and explode. Weld on a firebrick surface, on concrete or other fire-resistant flooring surrounded by spark curtains. Fill cracks in the flooring to prevent sparks and hot metal from entering and smoldering. Keep an ABC fire extinguisher, fire blanket, and first aid kit available at all times. It may be necessary to set a “fire watch” to ensure that a fire does not start.

To avoid electric shock from arc welding, use an insulating mat when you weld steel or other conductive materials. If you are welding in a wet or damp area or perspiring heavily, wear rubber gloves underneath your leather gloves. Keep welding cables clean, intact, and position them so they do not get sparks or hot metal on them.

Use arc welders in well-ventilated areas. Welding metals may be hazardous or lead to an oxygen deficient atmosphere and are best handled in a ventilation hood exhausted to the outside. If you weld or cut metals with hazardous coatings or treatments use a supplied-air respirator or a respirator with a specialty cartridge to filter specific metal fumes. Use respiratory protection for galvanized items and metals, coatings, and fluxes that contain fluorine compounds, zinc, lead, beryllium, cadmium, and mercury. Some cleaning and degreasing compounds may also be hazardous.

7/13
 


The above evaluations and/or recommendations are for general guidance only and should not be relied upon for legal compliance purposes. They are based solely on the information provided to us and relate only to those conditions specifically discussed. We do not make any warranty, expressed or implied, that your workplace is safe or healthful or that it complies with all laws, regulations or standards.

Copyright © 2000-2014 State Compensation Insurance Fund
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State Compensation Insurance Fund Logo Safety Meeting Topics (Bilingual)

Arc Welding Safety

Arc welders use a powerful electric arc to make and repair plain, coated, or treated metal items. Welders can be stationary, electric powered or portable, diesel/gas powered.

Install electric-powered arc welders to code. Ground equipment and place it on an independent circuit with the correct-sized fuse or circuit breaker. Overloading circuits or improper installation can lead to fire, a ground fault, or equipment failure. Mount a safety disconnect switch near the user work area. Operate diesel/gas powered arc welders in well-ventilated areas to control combustion fumes. Do not add fuel to the engine while it is running or near open flame. Stop the engine and lockout the ignition before performing maintenance or repairs.

To protect your body from burns due to arc welding heat, ultraviolet light (UV), molten metal, and sparks, wear dark colored coveralls with long sleeves and pant legs. The coveralls should be fire retardant, cuffless, and pocketless with no holes, tears, or worn spots. A skullcap protects your head and hair. Leather gauntlet gloves and safety boots protect your hands and feet. Wear hearing protection in noisy environments and to keep sparks out of your ears.

Goggles or safety glasses and welding helmets/shields protect your eyes from flying sparks, chipped slag, and UV light. Welding helmets and shields should be non-reflective and free of cracks, gaps, and openings. Use the correct filter setting for the power output of the arc welder. Weld inside a screened area to protect coworkers. Portable screens, shields, and anti-flash goggles can also be used to protect visitors and coworkers.

Arc welding can reach temperatures greater than 10,000 degrees F, posing a fire and explosion hazard. Do not arc weld near flammables or combustibles. Avoid welding, cutting, or hot work on used drums, barrels, or tanks where residual fumes can ignite and explode. Weld on a firebrick surface, on concrete or other fire-resistant flooring surrounded by spark curtains. Fill cracks in the flooring to prevent sparks and hot metal from entering and smoldering. Keep an ABC fire extinguisher, fire blanket, and first aid kit available at all times. It may be necessary to set a “fire watch” to ensure that a fire does not start.

To avoid electric shock from arc welding, use an insulating mat when you weld steel or other conductive materials. If you are welding in a wet or damp area or perspiring heavily, wear rubber gloves underneath your leather gloves. Keep welding cables clean, intact, and position them so they do not get sparks or hot metal on them.

Use arc welders in well-ventilated areas. Welding metals may be hazardous or lead to an oxygen deficient atmosphere and are best handled in a ventilation hood exhausted to the outside. If you weld or cut metals with hazardous coatings or treatments use a supplied-air respirator or a respirator with a specialty cartridge to filter specific metal fumes. Use respiratory protection for galvanized items and metals, coatings, and fluxes that contain fluorine compounds, zinc, lead, beryllium, cadmium, and mercury. Some cleaning and degreasing compounds may also be hazardous.

7/13
 


The above evaluations and/or recommendations are for general guidance only and should not be relied upon for legal compliance purposes. They are based solely on the information provided to us and relate only to those conditions specifically discussed. We do not make any warranty, expressed or implied, that your workplace is safe or healthful or that it complies with all laws, regulations or standards.

Copyright © 2000-2019 State Compensation Insurance Fund


 

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