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1/05 Welding, Cutting, and Brazing. 2 Notice  This presentation is provided to all Educational Service District 101 (ESD 101) schools at no cost.  This.

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Presentation on theme: "1/05 Welding, Cutting, and Brazing. 2 Notice  This presentation is provided to all Educational Service District 101 (ESD 101) schools at no cost.  This."— Presentation transcript:

1 1/05 Welding, Cutting, and Brazing

2 2 Notice  This presentation is provided to all Educational Service District 101 (ESD 101) schools at no cost.  This presentation contains copyrighted materials purchased by ESD 101 for the exclusive use of training school personnel within ESD 101.  This presentation may not be reproduced except to print “handouts” or “notes pages” for use during training within ESD 101 school districts.  If the school district does not have Microsoft’s PowerPoint software available, a PowerPoint viewer can be downloaded from the internet at no cost.  Questions may be directed to the ESD 101 Risk Manager.

3 3 Welding Safety Program Guidelines  Determine who is accountable for enforcement of welding operations  Hot work permitting system  Perform a job hazard assessment of welding equipment

4 4 Welding Safety Program Guidelines  Special procedures for equipment used in welding process Care of cylinders Ventilation systems Fire prevention

5 5 Welding Safety Program Guidelines  Engineering controls  Administrative controls  Personal protective equipment  Equipment inspection and maintenance  Incident investigation

6 6  Damage to eyes and skin Ultraviolet (UV) rays Infrared rays  Purging and cleaning of closed containers prior to welding operations Welding Hazards

7 7  Toxic gases, fumes, and dusts  Fire hazards from welding and cutting operations

8 8 Welding Hazards  Metal splatter  Electric shock  Explosion hazards

9 9  Use a platform with toeboards when working from elevated surfaces  Protect workers from stray sparks or slag in areas below elevated work surfaces General Safe Work Practices

10 10  Warn others of hot metal by marking work areas  Keep floor areas clear of electrodes and/or electrode stubs General Safe Work Practices

11 11  Never use bare conductors, damaged regulators, torches, or electrode holders  Never arc weld or resist weld while standing on damp surfaces General Safe Work Practices

12 12  Keep fire extinguishers near areas where hot work is performed General Safe Work Practices

13 13 Compressed Gas Cylinder Handling and Storage  Never accept compressed gas cylinders (CGCs) that were shipped in a horizontal position  Store CGCs upright  Keep CGCs secured with chains or cables

14 14 Compressed Gas Cylinder Handling and Storage  Group cylinders by type of gas  Store full and empty cylinders apart  Store gases so that old stock is removed and used first

15 15 Compressed Gas Cylinder Handling and Storage  Keep protective caps on stored CGCs  Prevent the dropping or banging of CGCs  Don’t roll CGCs along the bottom rim

16 16 Compressed Gas Cylinder Handling and Storage  Don’t lift CGCs by the cap unless using hand trucks designed for this purpose  Prevent cylinders from falling, or from having objects fall on them

17 17 Compressed Gas Cylinder Handling and Storage  Ensure that valves, hoses, connectors, and regulators are in good condition

18 18 Compressed Gas Cylinder Handling and Storage  Never open valves until regulators are drained of gas and pressure adjusting devices are released  When empty, close and return CGCs to the vendor

19 19 Compressed Gas Cylinder Handling and Storage  Empty CGCs must be labeled “MT” or “Empty”  Keep oil and grease away from oxygen CGCs, valves, and hoses

20 20 Fire Watches for Welding Operations

21 21 Designate a Fire Watch When These Conditions Exist  Combustible material is within 35 feet of the point of operation  Combustibles are more than 35 feet away, but are easily ignited by sparks

22 22  Wall or floor openings within a 35-foot radius expose combustible material in adjacent areas  Combustible materials opposite of walls or ceilings can be ignited by conduction or radiation Designate a Fire Watch When These Conditions Exist

23 23 Fire Watchers Will…  Have fire extinguishers readily available, and be trained in their use  Be familiar with alarm systems and their operation in the event of a fire

24 24 Fire Watchers Will…  Watch for fires in all exposed areas  Only try to extinguish fires obviously within the capacity of the equipment

25 25 Fire Watchers Will…  Stay in hot work areas for at least one half hour after hot work operations have ceased to detect and extinguish smoldering fires

26 26 Welding Safety in Confined Spaces  Before entry, test the work space for the following types of hazards: Flammability Combustibility Toxic fumes Slippery floor surfaces Welding Safety in Confined Spaces

27 27  When and where applicable, wear respiratory protection and a safety harness attached to a lifeline Welding Safety in Confined Spaces

28 28 When Hot-Work in a Confined Space is Interrupted  Disconnect power to arc welding or cutting equipment  Remove electrodes from holders  Turn off torch valves

29 29  Turn off gas supply to gas welding and cutting units at a point outside the space  Remove the torch and hose from the confined space, if possible When Hot-Work in a Confined Space is Interrupted

30 30  Keep welding areas free of combustibles  Ensure proper storage of compressed gas cylinders Make Housekeeping a Priority

31 31  Getting the job done safely is the first consideration  Always evaluate the job and implement appropriate safety precautions Don’t Take Shortcuts


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