Typical Cable Diameters
Following outside diameters are for reference only and will vary depending on cable manufacturer.
600/1000V XLPE Armoured
| Overall Diameter (mm) |
| mm2 |
1core |
2 core |
3 core |
4 core |
| 1.5 |
|
12.3 |
12.8 |
13.5 |
| 2.5 |
|
13.6 |
14.1 |
15.0 |
| 4 |
|
14.7 |
15.3 |
16.4 |
| 6 |
|
16.9 |
16.6 |
18.7 |
| 10 |
|
18.0 |
19.5 |
21.1 |
| 16 |
|
20.0 |
21.2 |
22.9 |
| 25 |
|
24.1 |
26.7 |
28.9 |
| 35 |
|
27.9 |
29.6 |
32.1 |
| 50* |
17.5 |
25.8 |
28.5 |
32.0 |
| 70 |
20.2 |
29.0 |
32.2 |
37.7 |
| 95 |
22.3 |
33.1 |
37.0 |
41.7 |
| 120 |
24.2 |
36.1 |
40.0 |
47.7 |
| 150 |
27.4 |
39.3 |
45.5 |
51.4 |
| 185 |
30.0 |
44.7 |
49.8 |
56.6 |
| 240 |
32.8 |
49.0 |
55.1 |
63.0 |
| 300 |
35.6 |
53.5 |
60.2 |
68.8 |
| 400 |
40.4 |
59.0 |
66.6 |
78.1 |
| 500 |
44.2 |
|
|
|
| 630 |
48.8 |
|
|
|
| 800 |
55.4 |
|
|
|
| 1000 |
60.6 |
|
|
|
* - change in class of conductor
Calculation
1. Required fill factor k (in decimal)
2. Cable diameter d, giving a cable area, a:
3. Cable total area
Ca = sum of area for all cables
4. Minimum duct diameter D: