Earthing & Grounding:
Earthing System or Grounding System in an electrical network work as a safety measure to protect human life as well as equipment, the main objective of the Earthing system is to provide an alternative path for dangerous currents to flow so that accidents due to electric shock and damage to the equipment can be avoided.
1. Going through concept of Grounding Vs Earthing
2. What is it mean by Earthing, what need to be earthed
3. Visual inspection of distribution transformer and identifying the earth connection points in a substation
4. Visual Inspection of Generator and Identifying Grounding
5. Visual Inspection of Gas Insulated Substation and Identifying Earthing
6. Why to Earth or Ground, Advantages of Earthing
7. Maintenance Earthing
8. Earthing for Human and equipment safety, Mechanical forces during sub-transient
9. Definition of Earthing and basic concept
10. Objective of Earthing System
11. Good Earthing Characteristics, Low Impedance
12. Good Earthing System, Standard Earth Resistance Value
13. Good Earthing System, Corrosion Resistant, Mechanical strength
14. Static Charge Grounding
15. Good Earthing and Ground Potential Rise
16. Earthing and lighting protection
17. What Need to Earth
18. What is Bonding and why it is different from Earthing
19. Soil Characteristics, Sphere of influence, Earth Rod, Resistivity
20. Earthing Design Concept
21. Earthing Material and Earthing Base Design
22. How make joints in Earthing, Exothermic Welding
23. Over View of Earthing System
24. Voltage Gradient and Ground Potential Rise
25. Ground Potential Rise
26. Step and touch Voltage
27. Transfer Potential
28. Soil Resistivity
29. How to Measure Soil Resistivity
30. Earthing Grid Conductor Sizing
31. Step and Potential limits
32. Surface Layer Material and why gravel is used
33. Maximum Grid Current
34. Earthing Compound
Best Regards