In an electrical installation, an earthing system is very important to connect specific parts of that installation with the Earth’s conductive surface for safety and functional purposes. This is done to prevent harm resulting to the user from coming in contact with any dangerous voltage in a situation where the user may, at the same time, also come in contact with an object at ground/earth potential.
The purpose of earthing
- Personal protection
- Property/ operational protection
- Potential grading earthing
- Electro-magnetic pulses protection
- Lightning protection