High-voltage cable
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How to calculate the current-carrying capacity of high-voltage cables
Maximum current-carrying capacity = Cross-sectional area of the cable (mm2) × Maximum allowable current density for this type of cable material (A/mm2). The actual current-carrying capacity depends on the size of the load.
Mnemonic for calculating current capacity: (Current capacity is the maximum current value that a wire is allowed to carry.) ) Ten minus five, one hundred plus two, forty or fifty points. For areas of 10 square millimeters or less, 5A can flow per square millimeter; for areas over 100 square millimeters, 2A can flow per square millimeter. For areas of 50 square millimeters or less, 1.5A can flow per square millimeter, while for areas over 50 square millimeters, 3A can flow per square millimeter.
What was said upstairs refers to low-voltage cables. . . The selection of high-voltage cables is primarily based on thermal stability verification. .
High-voltage power cables should have their current-carrying capacity selected based on the economic current density
I agree with the opinion above; high-voltage power cables should have their current-carrying capacity determined based on the economic current density.