MEW R-1 — Section 15
Table 2.5B
عوامل التصحيح لدرجات حرارة التربة
Correction factors for ambient ground temperatures other than 20°C
| التربة °م | PVC | XLPE |
|---|---|---|
| 10 | 1.10 | 1.07 |
| 15 | 1.05 | 1.04 |
| 20 | 1.00 | 1.00 |
| 25 | 0.95 | 0.96 |
| 30 | 0.89 | 0.93 |
| 35 | 0.84 | 0.89 |
| 40 | 0.77 | 0.85 |
| 45 | 0.71 | 0.80 |
| 50 | 0.63 | 0.76 |
| 55 | 0.55 | 0.71 |
| 60 | 0.45 | 0.65 |