What does EPZ stand for in underground cable maintenance?

The term EPZ stands for Equipotential Zone in the context of underground cable maintenance. An Equipotential Zone is an area where the electrical potential is kept uniform, reducing the risk of electric shock. This concept is crucial when working around electrical installations, especially with underground cables, as it ensures that all conductive materials within the zone reach the same electrical potential.

By distributing voltage evenly, it minimizes ground potential rise and protects workers and equipment from hazards associated with electrical shock. This is particularly important in maintenance operations where workers may be in close contact with underground cables that could potentially have stray voltages.

In contrast, terms like Emergency Procedure Zone, Equipment Protection Zone, and Equidistant Protection Zone do not align with established terminology used in the context of electrical safety and maintenance practices. The emphasis on maintaining a safe working environment through the principle of equipotentiality underlines the importance of the correct understanding of EPZ as Equipotential Zone in the field of underground cable maintenance.