Calculation - Of Cable Size Fixed
This requires checking the : $$S = \frac\sqrtI^2 \times tk$$
Cables don't operate in a vacuum. You must adjust the "nominal" current capacity based on the environment: calculation of cable size
Here lies the engineer’s dilemma: A cable might be thermally capable of carrying 100 amps without melting, but over a distance of 100 meters, the voltage might drop below usable levels for sensitive electronics. This often forces engineers to "upsize" the cable significantly—not for thermal reasons, but to maintain power quality. This requires checking the : $$S = \frac\sqrtI^2
Power Systems Engineer