Safety and Risk Analysis in Engineering PDF

ENGINEERS IN SOCIETY TPD 101 Safety & Risk Analysis in Engineering Practice Engr. (Dr.) Babatunde O. Salu  Safety Safety: Simply put this is a system or environment in which there is no risk Since risk cannot be 0%, an acceptable risk might then be deemed safe...

ENGINEERS IN SOCIETY TPD 101 Safety & Risk Analysis in Engineering Practice Engr. (Dr.) Babatunde O. Salu  Safety Safety: Simply put this is a system or environment in which there is no risk Since risk cannot be 0%, an acceptable risk might then be deemed safe What is risky (unsafe) for someone may not be for another (e.g. asthmatic person in a dusty environment) Regulations can also determine what is considered safe and what isn't.  Health Health: This is simply a state of well-being. This includes physical, emotional and even social well-being Health effects tend to be long term in nature (e.g. cancer from radiation exposure) while safety effects tend to be immediate (e.g. electric shocks)  Why should engineers concern themselves with Health, safety and risk? Death Injury Fines and other legal consequences Downtime and loss of revenue Reputation Damage  Risk Risk: The probability of an event occurring (which will have an impact on the achievement of the operational objectives of the plant). Risk Assessment: can be considered as the holistic process of risk analysis and evaluation. Risk Management : This can be thought of as the operationalization of specific processes, operational procedures and management structures aimed at effectively managing risks and their negative effects Risk assessment is done through a juxtapositioning of of effects and likelihood of occurrence.  The role of Risk Analysis cannot be understated in various engineering sectors (electrical, civil, chemical, materials, software engineering and mechanical). It helps to identify and plan for problems before they occur. Benefits of Risk Analysis: – Risk identification and mitigation – Data based decision-making, – Prevention of catastrophic failures – Making systems more robust. – Risk Analysis reduces “nasty” surprises thus ensuring engineering groups are more proactive than reactive.  Risk Analysis Process Identify hazards: electrical, fire, chemical etc Assess the risks: likelihood, severity etc Manage the risks: PPE, procedures, insurance, hazard allowance etc Record your findings. Review the controls.  Expanded Risk Analysis Identify risks Review past projects, consult with stakeholders, and analyze industry standards and best practices Assess the risk Determine the likelihood of a hazard causing harm and the severity of the harm that could occur Prioritize risks Assess the risks you identified and prioritize them to ensure informed decision-making Record your findings Keep a formal record of risk assessments, including a detailed description of the process, an outline of evaluations, and explanations on how conclusions were made Implement risk treatments Use strong controls, metrics, and management tools to help with ongoing risk management and actively reduce your top priority risks Review your assessment Review your assessment and re-assess if necessary Risk assessment is a valuable tool in preventing and controlling risks in the workplace. It can help with planning work, developing safety procedures, and reducing the number of accidents.  Safety and risk analysis in engineering is the process of identifying and assessing hazards to reduce the chance of accidents. It's an essential part of engineering that helps to improve safety procedures and reduce uncertainty. Here are some steps involved in safety and risk analysis: Identify hazards: Identify potential hazards, such as physical dangers, chemical exposure, or ergonomic risks Assess risks: Evaluate the potential uncertainties or risks that could occur Control risks: Apply resources to lower, monitor, and control the probability and impact of unforeseen events Review control measures: Review the control measures that have been put in place  Risk analysis can be broken down into three components: Risk assessment: Identifying what risks are present Risk management: The procedures in place to minimize the damage done by risk Risk communication: The company-wide approach to acknowledging and addressing risk Risk Assessment Matrix RAM  1-6 Low risk rating 7-12 Medium risk level 13-25 High risk  PPE Depends on working environment  Helmets safety helmets are usually classified into three types: Class A, Class B, and Class C. Class A helmets: These helmets offer impact and penetration resistance, as well as limited voltage protection (up to 2200 volts). They are suitable for general industry workers who are exposed to falling objects or debris, but not to high-voltage electrical hazards. Class A helmets are usually made of hard plastic or fiberglass and have a brim around the helmet to provide shade for the eyes. Class B helmets: These helmets offer the best quality of protection against electrical hazards, with high-voltage shock and burn protection (up to 20000 volts). They are ideal for electricians and workers who are exposed to high-voltage environments. Class B helmets are usually made of non- conductive materials and have no brim around the helmet to avoid contact with live wires. Class C helmets: These helmets offer lightweight comfort and impact protection, but no electrical protection. They are designed for workers who need ventilation and mobility, but are not exposed to electrical or falling hazards. Class C helmets are usually made of aluminum or plastic and have vents on the top or sides of the helmet to allow air circulation. Source: https://gibadi.com/blogs/news/how-to-choose-the-right-safety-helmet-for-your-job  Helmet colour coding White: This color is usually worn by engineers, supervisors, managers, and foremen. It indicates a high level of authority, responsibility, or expertise in the workplace. Yellow: This color is usually worn by laborers and earth moving operators. It indicates a low level of authority, responsibility, or expertise in the workplace. Blue: This color is usually worn by electricians, carpenters, and other technical workers. It indicates a medium level of authority, responsibility, or expertise in the workplace. Green: This color is usually worn by safety officers, inspectors, and new workers. It indicates a high level of safety awareness, compliance, or training in the workplace. Orange: This color is usually worn by road workers, traffic controllers, and crane operators. It indicates a high level of visibility, alertness, or caution in the workplace. Red: This color is usually worn by firefighters, emergency workers, and first aiders. It indicates a high level of urgency, danger, or risk in the workplace. Brown: This color is usually worn by welders, boilermakers, and other workers who deal with high heat or fire hazards. It indicates a high level of thermal protection, resistance, or insulation in the workplace. Grey: This color is usually worn by visitors, guests, or temporary workers. It indicates a low level of involvement, participation, or familiarity in the workplace.  Safety boots Safety boots come in various shapes and can be stylish, sporty etc. however they're designed to provide protection against: impact resistance compression resistance slip resistance electrical hazards Proper and improper…….  Safety Mesh..