In this video, we will learn complete Earthing Cable Design and Calculation step by step in simple language.
Topics covered in this video:
✔ Real purpose of earthing
✔ Why earthing is important for protection systems
✔ IEC earthing conductor sizing method
✔ Transformer fault current calculation
✔ Breaker clearing time explained
✔ Adiabatic formula explained
✔ Earth conductor size calculation step by step
✔ Why MCB may not trip during earth fault
✔ Difference between MCB, RCCB, and RCBO
✔ Importance of low resistance earthing
We will also understand practical examples using:
• 1000 kVA transformer
• Fault current calculation
• I²t concept
• Earthing conductor thermal withstand
This video is specially useful for:
Electrical engineers, electricians, supervisors, technicians, maintenance engineers, and students.
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By Rashid iqubal
Electrical engineer
