Using the short-circuit current calculation method, the short-circuit current that the cable can withstand is calculated to be 25 kA.
Based on these calculations, a cable size of 400 mm² is selected. mv cable sizing
MV cable sizing is a complex process that requires consideration of several factors, including current rating, voltage rating, short-circuit current, ambient temperature, cable route and layout, and load characteristics. By following the industry standards and guidelines and using the calculation methods outlined in this report, engineers can ensure safe and efficient transmission of electrical power. Using the short-circuit current calculation method
For a mathematical representation of current rating of the cable we can use: including current rating
Let's consider an example of MV cable sizing calculation:
The following step-by-step procedure can be used for MV cable sizing:
