A 16 mm² XLPE copper cable in free air at 30°C might carry 125 A. But if you:
For a 400V, 50A load at 200m distance:
Exceed these temperatures regularly, and insulation ages prematurely—leading to short circuits, fires, or electric shock risk. as3008 cable selection
The standard answers one critical question: Given a specific cable type, installation method, and ambient condition, how much current can it safely carry without degrading its insulation? A 16 mm² XLPE copper cable in free