Rating Factors for variation In Ambient temperature for cables laid in AIR
| Ambient temperature °C |
20 |
25
|
30
|
35
|
40 |
45 |
50
|
55
|
| XLPE insulated cable 90oC |
1.06 |
1.02 |
1.0 |
0.96 |
0.91 |
0.87 |
0.82 |
0.76 |
| PVC insulated cable 85oC |
1.07 |
1.02 |
1.0 |
0.95 |
0.90 |
0.85 |
0.80 |
0.74 |
| PVC insulated cable 70oC |
1.09 |
1.03 |
1.0 |
0.94 |
0.87 |
0.79 |
0.71 |
0.61 |