Cable — Selection Calculation High Quality

| Number of circuits | k₂ (touching, in air) | |-------------------|------------------------| | 1 | 1.0 | | 2 | 0.80 | | 3 | 0.70 | | 4 | 0.65 | | 5 | 0.60 | | 6 | 0.57 | | 8 | 0.52 |

| Factor | Symbol | Typical value (example) | |--------|--------|--------------------------| | Ambient temp (45°C) | (k_1) | 0.79 | | Grouping (6 circuits) | (k_2) | 0.57 | | Soil thermal resistivity (2.5 K·m/W) | (k_3) | 0.75 | | Depth of burial (1.5m) | (k_4) | 0.95 | | Cyclic load factor | (k_5) | ~1.0 | cable selection calculation

[ A_min = \sqrt\frac10000^2 \times 0.4115 \approx \sqrt\frac40 \times 10^6115 \approx \sqrt347826 \approx 590 \text mm^2 ] | Number of circuits | k₂ (touching, in

Where each (k) is <1 (or rarely >1). A real-world example: 1 (or rarely &gt