| Depth | Factor (up to 10kV) | |-------|---------------------| | 0.5 m | 1.00 | | 0.8 m | 0.96 | | 1.0 m | 0.94 | | 1.5 m | 0.90 | Reduced air density lowers convection cooling.
(I_derated = 210A \times 0.35 = 73.5A)
Note: For high temperatures >55°C, special cables are required. When multiple cables run together, each heats its neighbors. cable derating factor