Development Of A Risk Based Inspection (RBI) Software For An Integrated Explosion-Inspection Compliance Services (Industry Demand Project)

Zaharin, Muhammad Naiem Naqiuddin (2020) Development Of A Risk Based Inspection (RBI) Software For An Integrated Explosion-Inspection Compliance Services (Industry Demand Project). Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This project discussed the periodic inspection stated in IEC 60079-17 where every Ex electrical equipment need to be inspected in three years interval. Such practices are questioned as the interval is baseless and the practice treats every equipment at same level of risk regardless of any external factors. This paper analysed the factors that contributes to assessing the ignition risk of each component. Analytical Hierarchy Process (AHP) method was used to determine the weightage of each factor or criteria and expert judgment were developed to rate the sub-criteria based on the possibility of them to become a source of ignition. Risk interval was developed to determine the level of ignition risk and tolerable interval of periodic inspection is established. 40 samples were taken to be analysed and the result shows that 37.5% of the samples have low ignition risk, 50% have medium ignition risk and 12.5% have high ignition risk. These variations of ignition risk show that every equipment has their own risk and to treat them at the same level of attention is incorrect. New interval for periodic inspection was developed based on the ignition risk of Ex electrical equipment and the interval works where equipment with low ignition risk will have longer interval and equipment with high ignition risk will have shorter interval. This increase the effectiveness of the inspection schedule by prioritization is given to equipment with high risk. In the future, this research about periodic inspection can be merge with sampling strategy to improve the efficiency of the inspection program.

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