Reason for electrical earthing:

Electrical earthing is necessary to provide a path for fault currents to flow safely into the ground, preventing the risk of electric shock and protecting electrical equipment from damage. It also helps to stabilize voltage levels and ensure proper functioning of electrical systems. Additionally, earthing helps to protect against lightning strikes and static electricity buildup.

1. Safety: Earthing provides a low-resistance path for fault currents to flow back to the source, preventing dangerous voltages from building up on equipment and surfaces. This protects people from electric shock and reduces the risk of electrical fires.

2. Voltage Stabilization: Earthing helps maintain a stable voltage level by providing a reference point for the electrical system. This prevents voltage fluctuations that can damage sensitive electronic devices.

3. Lightning Protection: Earthing provides a path for lightning currents to flow into the ground, minimizing their impact on structures and equipment.

4. Reduction of Electrical Noise: Earthing helps reduce electrical noise by providing a low-impedance path for stray currents to flow. This improves the performance of electronic systems and reduces EMI (electromagnetic interference).

5. Electrostatic Discharge (ESD) Control: Earthing provides a path for electrostatic charges to dissipate, preventing electrostatic shocks and damage to sensitive electronic components.

6. Grounding for Electronics: Earthing is essential for proper grounding of electronic circuits, ensuring correct and reliable operation. It helps eliminate ground loops, reduce noise, and protect against overvoltages.

7. Corrosion Control: Earthing helps prevent corrosion of metal structures by providing a path for stray currents to flow through the ground instead of through the metal.

8. Radio Frequency (RF) Interference Mitigation: Earthing can help reduce RF interference by providing a low-impedance path for RF currents to flow into the ground.