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Chapter 1 Safety through Design

Chapter 1 Safety through Design - Chapter 1 Safety Through...

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Unformatted text preview: Chapter 1 Safety Through Design Dr. Qingsheng Wang Oklahoma State University 1 1. Introduction • Defining safety through design • Integrating hazard analysis and risk assessment methods early in the design and redesign process and taking the actions necessary so that the risks of injury or damage are at an acceptable level. Areas Facility, hardware, equipment, materials, layout, energy control etc. 2 Model • A pre­thought, Not an afterthought Project Conception Design Design Build Retrofit Operate, Maintain Eliminate Retire Ease of integrating safety Cost of integrating safety 3 Benefits of Safety through Design • Reduction in injuries, illness, and damage to the environment • Productivity will be improved • Operating cost will be reduced • Retrofitting to correct design will be avoided 4 Principles and Definition • • • • • Acceptable Risk ALARP Safety and Risk Probability and Severity Risk Assessment Page 7 5 2. Hazards Analyses and Risk Assessment • Goal Achieve acceptable risk levels • Risk assessment matrices 6 Risk Assessment Process 11 Steps 1. 2. 3. 4. 5. 6. Establish the analysis parameters Identify the hazards Consider the failure models Determine the frequency and duration Assess the severity of consequences Determine occurrence probability 7 Risk Assessment Process 1. 2. 3. 4. 5. Define the risk Rank risks Develop remediation proposals Follow up on actions taken Document the results 8 3. The Hierarchy of Controls • • • Engineering controls Apply administration controls Provide Personal Protective Equipment (PPE) Effectiveness 9 4. Safety Design Checklist A. Basic Considerations B. Design for Disabilities C. Confined Spaces D. Electrical Safety E. Emergency Safety System F. Environmental Considerations G. Ergonomics H. Fall Avoidance 10 10 Checklist A. Fire Protection B. Hazardous and Toxic Materials C. Lockout/Tagout – Energy Control D. Machine Guarding E. Noise Control F. Pressure Vessel G. Ventilation H. Walking and Working Surfaces, Floor and Walking Wall openings, Fixed Stairs and Ladders Wall 11 11 5. Others • MOC (the most important part?) • Including Safety Specifications in Purchasing Documents (not easily acquired, why?) 12 12 6. Summary 1. 2. 3. 4. 5. Definition, Model, and Benefits Risk Assessment Process Hierarchy of Control Safety Design Checklist MOC and Safety Specifications 13 13 Homework • Review Questions (page 32) • Reading Chapter 2 14 14 Videos • On Any Given Day 5 min • Judge, Jury and Executioner 4 min ...
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