Choosing the right grounding conductor size isn’t guesswork—it’s critical for safety and code compliance. Undersize it, and a fault could vaporize the cable before the breaker trips. Oversize it, and you waste money.
Several factors influence the selection of grounding cable size: grounding cable size calculation
🔁 Repost to help someone avoid a melted ground wire. t = 0.2 sec
Selecting the correct grounding cable size is crucial for ensuring the safety and reliability of electrical systems. By following the steps outlined in this paper and using the cable size calculation formula, electrical engineers and technicians can determine the correct grounding cable size for their specific application. k = 143 (Cu)
I = 20 kA, t = 0.2 sec, k = 143 (Cu)