Analysis of Grounding Issue in E-House Fabrication

Abstract

Abstract— The grounding system is a critical element in the fabrication of electrical house (E-house). Defects in this stage can reduce the reliability of the system, increase the potential for safety risks to personnel, and directly affect the quality of the final fabrication. This study uses a combination of Fishbone Diagrams and 5 Whys analyses to identify and investigate grounding related issues during the fabrication process. The case study focuses on two major defects: Grounding resistance not good and Grounding not installed properly. A systematic analysis successfully identified the root causes, which were addressed through corrective actions. These included recalibrating the torque tools used for grounding bolt tightening and reinforcing the consistency of the internal inspection checklist monitoring process. These improvements were implemented continuously and effectively reduced grounding defects while improving installation performance. The structured approach offered by the Fishbone and 5 Whys methodologies supports the prioritization of improvement actions and provides clear technical guidance to minimize grounding-related risks. This contributes to enhanced overall fabrication quality.