Derating Factor For Cables Today

| | Reference Temp. | Derating at 50°C | Derating at 60°C | |----------------------|--------------------|----------------------|----------------------| | PVC | 30°C | 0.71 | 0.58 | | XLPE / EPR | 40°C | 0.89 | 0.77 |

Note: Always check manufacturer tables for exact values. When multiple cables run together, each heats its neighbors. The closer and more cables, the higher the derating. derating factor for cables

[ 200 , A \times 0.446 = 89.2 , A ]

A derating factor is a multiplier (less than 1) applied to a cable’s rated current-carrying capacity to reduce its maximum allowable load. This ensures the cable operates within safe temperature limits under real-world conditions. | | Reference Temp