April 2022, Vol. 249, No. 4


Engineer’s Role in Hazardous Area Classification

By Chandragupthan Bahubali, Saravanan Murugesan and Eswaran Marimuthu, Wood Plc., India   Hazardous area classification is not a new technique to address the risk associated with flammable gas, vapor, liquids and dust. It involves evaluating a location or process for hazards of fire or the probability of incident.   In the process of hazardous area classification, the plot plan is divided into areas by risk levels. Each area is classified based on the ventilation, and risk is assessed based on the gas group and zones to finalize the electrical installation requirements.   Elements of hazardous area classification are types of hazards present, such as gases, vapors, liquids and dusts, alon

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