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Welding and Cutting for construction. Welding safety program guidelines Person responsible Accountability and enforcement Job hazard assessment Special.

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Presentation on theme: "Welding and Cutting for construction. Welding safety program guidelines Person responsible Accountability and enforcement Job hazard assessment Special."— Presentation transcript:

1 Welding and Cutting for construction

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

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

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

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

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

7 Storing compressed gas cylinders Upright position Oxygen cylinders separated 20 foot rule CGA Pamphlet P-1-1965 3a

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

9 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

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

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

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

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

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

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

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

17 Manual electrode holders Specifically designed Fully insulated 12a

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

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

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

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

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

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

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

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

26 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

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

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

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

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

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


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