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Welding, Cutting and Brazing

Welding, cutting and brazing are common activities at many jobsites in many industries. These operations fall under the term "hot work," which refers to any work involving open flames, sparks or molten metal. Because hot work is such a common activity, sometimes people forget about the dangers. Welding involves high temperatures and the potential for fire and explosion. There are also health hazards associated with the welding and cutting of various metal surfaces, such as galvanized metal, lead-painted surfaces, cadmium and the like.

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Learning Objectives

Describe the roles of personnel involved in welding, cutting, brazing and other hot work operations.
Recognize how the hot work permit system ensures that all hazards are identified, communicated and controlled.
Identify fire prevention techniques used during welding, cutting and brazing.
Understand hazards associated with oxyacetylene and arc welding and methods to mitigate risks.

Recall the proper storage, handling, transportation and use of compressed gas cylinders.
Be aware of the chemical and physical agents produced in welding operations.
Identify personal protective equipment (or PPE) to be worn when performing hot work operations.

Course Outline

1. Introduction
1. Welcome
2. Introduction
3. Learning Objectives
2. Hot Work Basics
1. Roles of Management and Supervisors
2. Hot Work Permit System
3. Safe Practices
1. The Work Area
2. Fire Prevention
3. Fire Watch
4. Monitoring
5. Knowledge Check: Safe Distance
6. Fire Extinguishers
7. Dangerous Areas
8. Welding or Cutting of Containers
4. Oxyacetylene Welding
1. Oxyacetylene Welding
2. Before Opening the Valve
3. Opening the Valve
4. Lighting the Torch
5. Knowledge Check: Oxyacetylene Welding
6. The Flame
7. When the Job Is Finished
8. Important Safety Issues
9. Knowledge Check: Acetylene Cylinder Pressure
5. Storage
1. Compressed Gases
2. Compressed Gas Identification
3. Cylinder Storage
4. Storage of Empty Cylinders
5. Acetylene Cylinder Storage
6. Oxygen Cylinder Storage
7. Transportation of Cylinders
8. Leaks
9. Preventing Leaks
10. Knowledge Check: Shutting off the Torch
11. Knowledge Check: Moving Cylinders
12. Knowledge Check: Cylinder Storage

6. Arc Welding and Ventilation
1. Arc Welding
2. Ventilation
7. Health Hazards
1. Welding Health Hazards
2. Chemical Agents
3. Chemical Agents: Continued
4. Chemical Agents: Continued
5. Chemical Agents: Continued
6. Chemical Agents: Continued
7. Physical Agents: Ultraviolet and Infrared Radiation
8. Physical Agents: Intense Visible Light
8. Personal Protection
1. Personal Protective Equipment (PPE)
2. Body Protection
9. Conclusion
1. Conclusion