System Earthing is the earthing associated with current carrying conductor & is essential for the security of the system.

Equipment Earthing is the earthing associated with non-current carrying metal work & is essential for the security of human life and property.

MEN system

A clean earthing system is a circuitry that connects the electric circuit to the ground. This defines the electrical conductors to the Earth's conductive surface.

Earthing is the process of grounding electricity. There are numerous methods employed including static, equipment, system, lightning, electronic and maintenance groundings.

An earthing system can be defined as the electrical potential of the conductors relative to the EarthÍs conductive system. The choice of earthing method can influence the safety and electromagnetic compatibility of the power supply, and regulations can vary considerably among countries.