Welding and Cutting for construction

Welding safety program guidelines Person responsible Accountability and enforcement Job hazard assessment Special procedures 1a

Welding safety program guidelines Engineering controls Administrative controls Personal protective equipment 1b

Welding safety program guidelines Equipment inspection/ maintenance "Near miss" investigation 1c

Compressed gas cylinders hazards Valve protection caps Hoisting cylinders Moving cylinders 2a

Compressed gas cylinders hazards Transporting by powered vehicles Cylinders in use Closed cylinder valve 2b

Storing compressed gas cylinders Upright position Oxygen cylinders separated 20 foot rule CGA Pamphlet P a

Placing compressed gas cylinders Fire prevention Electrical protection Valve end up Confined space restriction 4a

Treatment of compressed gas cylinders Do not: –Mix gases in a cylinder –Refill a cylinder –Use for purposes not intended –Use damaged or defective cylinders 5a

Training employees using fuel gas Reduce the pressure via a regulator Cracking the valve Open slowly Close valve/ release gas 6a

Cylinder leaks Immediately discontinue use Properly tag Remove from the work area 7a

Fuel gas and oxygen manifolds Manifolds correctly marked Safe, well ventilated locations Hose connections keep free of grease and oil 8a

Fuel gas and oxygen hose Easily distinguishable from each other Not interchangeable Parallel sections taped together Inspect before using 9a

Fuel gas and oxygen hose Remove defective hose from service Test to twice the normal pressure Keep out of passageways 9b

Torches Clean clogged torch tip openings Inspect before using Don’t use defective torches Use friction lighters 10a

Housekeeping Keep free from oil or greasy substances Avoid directing oxygen flow 11a

Manual electrode holders Specifically designed Fully insulated 12a

Welding and cutting cables Completely insulated, flexible type Handle maximum current requirements 13a

Welding and cutting cables Do not use damage cable Worn cable to be protected Connecting or splice cable 13b

Training for arc welding and cutting Remove electrodes if left unattended Avoid electric shock Open power supply switch 14a

Training for arc welding and cutting Report defective equipment Provide supply circuit disconnect Provide switch or circuit breaker 14b

Five common arc-welding processes Shielded metal (SMAW) Gas metal (GMAW) Gas tungsten (GTAW) Flux cored (FCAW) Submerged (SAW) 15a

Welding and fire prevention Move object to safe location Move fire hazards to safe place Confine the heat, sparks, and slag 16a

Welding and fire prevention Avoid flammable compounds Fire extinguishing equipment 16b

Fire watchers Assign additional personnel Instruct in the specific hazards Firefighting equipment is used 16c

Drums and containers Keep closed if full Move empty containers to safe area Clean containers if necessary Open vent during the application of heat 16d

Mechanical ventilation General mechanical ventilation systems Local exhaust systems Oxygen restrictions 17a

Confined spaces Use of air line respirators Communication Emergency rescue Pre-planed rescue procedure 18a

General welding, cutting, and heating Absence of hazards conditions Absence of toxic materials No special requirements Eye protective equipment needed 19a

Preservative coatings Testing by a competent person Determine flammability Remove from welding area 20a

Physical hazards of welding and cutting Ultraviolet radiation (UV) Infrared radiation (IR) Intense visible light 21a