Rapid expansion of medium-voltage distribution networks across developing regions has intensified the importance of effective grounding systems for ensuring public safety, equipment protection, and operational reliability. This study investigates contemporary approaches to grounding system design to identify strategies that reconcile stringent safety requirements with the economic and environmental constraints characteristic of emerging power markets. A comprehensive review methodology was adopted, integrating international standards, peer-reviewed literature, analytical and numerical modelling studies, optimisation frameworks, material innovations, and documented field implementations from diverse geographic contexts. The review reveals that conventional, prescriptive grounding practices frequently underperform when applied in heterogeneous soils, rapidly evolving network topologies, and resource-constrained environments. Key findings demonstrate that grounding effectiveness is governed not solely by ground resistance, but by a broader set of performance indicators, including touch and step voltages, transient response, soil stratification effects, and long-term degradation mechanisms. Advanced modelling and simulation techniques, coupled with multi-objective optimisation algorithms, are shown to significantly enhance design accuracy and cost efficiency. Emerging materials such as conductive composites, enhanced backfills, and corrosion-resistant electrodes, alongside monitoring-enabled grounding systems, offer practical pathways for improving lifecycle performance. Evidence from practical case studies underscores the value of context-specific designs supported by field validation and adaptive maintenance strategies. The study concludes that grounding system design must transition from static, compliance-driven methodologies toward performance-oriented, data-informed, and adaptable frameworks. It is recommended that utilities and regulators strengthen site investigation practices, integrate optimisation and monitoring tools into routine design workflows, and develop regionally responsive guidelines aligned with international best practice. These measures are essential for achieving resilient, safe, and sustainable distribution networks capable of supporting long-term electrification objectives in emerging economies. Collectively, these insights inform policy, engineering education, and strategic investment decisions worldwide effectively today.
Adeniji et al. (Sun,) studied this question.