Derating Factor For Cables Jun 2026

| | Derating (approx.) | |------------|------------------------| | 0.5 m | 1.02 | | 0.8 m | 1.00 (reference) | | 1.0 m | 0.98 | | 1.5 m | 0.94 |

| | Thermal Resistivity | Derating factor | |------------------------|-------------------------|---------------------| | Damp clay/loam | 1.0 – 1.5 | 1.05 – 1.10 | | Standard (IEC assumed) | 2.5 | 1.00 | | Dry sand/gravel | 3.0 – 4.0 | 0.70 – 0.85 | derating factor for cables

If a cable has a base rating of , but is installed in an ambient temperature of 40°C (factor 0.91) alongside 3 other cables (factor 0.8): | | Derating (approx

Cable Current Rating Derating Factors Explained - ELEK Software Here are the key features and details regarding

More sensitive to temperature increases. A 45°C ambient air exposure can drop the derating factor to roughly 0.79 .

: Depth of burial correction factor (for underground installations).

Here are the key features and details regarding derating factors for cables: