01 Circular or compacted circular stranded conductors (class 2)
121 Shaped stranded conductors (class 2)
l3! Cables having conductors of nominal cross-sectional area 50mm2 and above have shaped stranded conductors (class 2)TABLE 17
Three-core 1900/3300V cables with solid aluminium conductors (Type 1 and Type 2)
|
1 |
2 |
3 |
4 |
5 |
6 |
|
Nominal cross- sectional area of conductor111 |
Thickness of insulation |
Thickness of extruded bedding |
Nominal aluminium armour wire diameter |
Thickness of oversheath |
Approximate overall diameter |
|
mm2 |
mm |
mm |
mm |
mm |
mm |
|
50 |
2.0 |
1.2 |
2.0 |
2.0 |
33.0 |
|
70 |
2.0 |
1.2 |
2.0 |
2.1 |
36.0 |
|
95 |
2.0 |
1.2 |
2.0 |
2.2 |
39.1 |
|
120* |
2.0 |
1.4 |
2.5 |
2.3 |
43.1 |
|
150* |
2.0 |
1.4 |
2.5 |
2.4 |
45.6 |
|
185* |
2.0 |
1.4 |
2.5 |
2.5 |
48.7 |
|
240* |
2.0 |
1.6 |
2.5 |
2.6 |
53.2 |
|
300* |
2.0 |
1.6 |
2.5 |
2.7 |
57.2 |
l1) Solid sector shaped conductor (class 1)
Type 2 sizes
TABLE 18
Mass of zinc coating and diameter of armour wire
|
1 |
2 |
3 |
|
|
Nominal wire diameter |
Wire diameter |
Minimum mass of zinc coating |
|
|
Minimum |
Maximum |
||
|
mm |
mm |
mm |
g/m2 |
|
0.9 |
0.85 |
0.95 |
112 |
|
1.25 |
1.18 |
1.32 |
150 |
|
1.6 |
1.51 |
1.69 |
172 |
|
2.0 |
1.90 |
2.10 |
180 |
|
2.5 |
2.37 |
2.63 |
195 |
|
3.15 |
2.99 |
3.31 |
206 |
Maximum resistance of conductor and armour for single core cables having aluminium wire armour
(Type 1 and Type 2)
|
1 |
2 |
3 |
4 |
5 |
6 |
|
|
|
Maximum resistance per kilometre of cable |
at 20°C |
||
|
Nominal cross- |
|
|
Aluminium wire armour |
||
|
|
|
|
|
|
|
|
sectional area of conductor |
Copper conductor |
Aluminium conductor |
Cables with stranded conductors |
Cables with solid aluminium |
|
|
|
|
|
|
conductors |
|
|
|
|
|
600/1000V |
1900/3300V |
600/1000V |
|
mm2 |
Q |
Q |
a |
a |
Q |
|
50 |
0.387 |
0.641 |
1.3 |
0.75 |
1.4 |
|
. 70 |
0.268 |
0.443 |
0.75 |
0.67 |
0.84 |
|
95 |
0.193 |
0.320 |
0.67 |
0.61 |
0.75 |
|
120 |
0.153 |
0.253 |
0.61 |
0.42 |
0.69 |
|
150 |
0.124 |
0.206 |
0.42 |
0.39 |
0.47 |
|
185 |
0.0991 |
0.164 |
0.38 |
0.37 |
0.42 |
|
240 |
0.0754 |
0.125 |
0.34 |
0.34 |
0.38 |
|
300 |
0.0601 |
0.100 |
0.31 |
0.31* |
0.35 |
|
400 |
0.0470 |
0.0778 |
0.22 |
0.22 |
|
|
500 |
0.0366 |
0.0605 |
0.20 |
0.20 |
- |
|
630 |
0.0283 |
0.0469 |
0.18 |
0.18 |
- |
|
800 |
0.0221 |
0.0367 |
0.13 |
0.13 |
- |
|
1000 |
0.0176 |
0.0291 |
0.12 |
0.12 |
- |
|
Circular sectoral conductors |
|||||
|
380 |
- |
0.0800 |
- |
- |
0.25 |
|
480 |
|
0.0633 |
- |
|
0.22 |
|
600 |
- |
0.0515 |
- |
|
0.20 |
|
740 |
* |
0.0410 |
- |
- |
0.15 |
|
960 |
- |
0.0313 |
|
|
0.13 |
|
1200 |
- |
0.0250 |
■ |
- |
0.12 |
|
Value is 0.25 for Type 2 cable, which employs 2.0mm armour wire1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
|
|
|
|
|
|
|
Maximum resistance per kilometre of cable at 20 |
°С |
|
|
|
||||
|
|
|
|
Wire armour |
||||||||||
|
Nominal |
|
|
Cables with stranded copper conductors and steel wire armour |
Cables with solid aluminium conductors and aluminium |
|||||||||
|
cross- |
|
|
|
|
|
|
|
|
|
wire armour |
|
||
|
sectional area of conductor |
Copper01 conductor |
Aluminium conductor |
Two- core |
Three-core |
Four-core {equal |
Four-core (reduced |
Five-core |
Two-core |
Three-core |
Four-core |
|||
|
|
|
|
|
|
neutral) |
neutral) |
|
|
|
|
|
||
|
|
|
|
600/ |
600/ |
1900/ |
600/ |
600/ |
600/ |
600/ |
600/ |
1900/ |
600/ |
|
|
|
|
|
1000V |
1000V |
3300V |
1000V |
1000V |
1000V |
1000V |
1000V |
3300V |
1000V |
|
|
mm2 |
Q |
Q |
Q |
Q |
Q |
Q |
Q |
Q |
Q |
Q |
Q |
Q |
|
|
1.5 |
12.1 |
|
10.2 |
9.5 |
|
8.8 |
- |
8.2 |
- |
|
- |
- |
|
|
2.5 |
7.41 |
|
8.8 |
8.2 |
|
7.7 |
- |
6.8 |
- |
- |
- |
- |
|
|
4 |
4.61 |
|
7.9 |
7.5 |
- |
6.8 |
• |
6.2 |
- |
- |
- |
- |
|
|
6 |
3.08 |
|
7.0 |
6.7 |
• |
4.3 |
- |
3.9 |
- |
- |
- |
- |
|
|
10 |
1.83 |
- |
6.0 |
4.0 |
■ |
3.7 |
|
3.4 |
|
|
|
|
|
|
16 |
1.15 |
1.91 |
3.7 |
3.5 |
1.9 |
3.1 |
|
2.2 |
0.82 |
0.77 |
|
0.69 |
|
|
25 |
0.727 |
1.20 |
3.7 |
2.5 |
1.7 |
2.3 |
2.3 |
1.8 |
0.84 |
0.55 |
• |
0.49 |
|
|
35 |
0.524 |
0.868 |
2.6 |
2.3 |
1.8 |
2.0 |
2.1 |
1.6 |
0.59 |
0.50 |
• |
0.45 |
|
|
50 |
0.387 |
0.641 |
2.3 |
2.0 |
1.3 |
1.8 |
1.9 |
1.1 |
0.53 |
0.45 |
0.28 |
0.39 |
|
|
70 |
0.268 |
0.443 |
2.0 |
1.8 |
1.2 |
1.2 |
1.3 |
0.94 |
0.46 |
0.38 |
0.25 |
0.27 |
|
|
95 |
0.193 |
0.320 |
1.4 |
1.3 |
1.1 |
1.1 |
1.1 |
■ |
0.32 |
0.27 |
0.23 |
0.24 |
|
|
120 |
0.153 |
0.253 |
1.3 |
1.2 |
0.76 |
0.76 |
0.96 |
|
- |
0.25 |
0.17 |
0.17 |
|
|
150 |
0.124 |
0.206 |
1.2 |
0.78 |
0.71 |
0.68 |
0.71 |
|
- |
0.18 |
0.16 |
0.16 |
|
|
185 |
0.0991 |
0.164 |
0.82 |
0.71 |
0.65 |
0.61 |
0.63 |
|
■ |
0.16 |
0.15 |
0.14 |
|
|
240 |
0.0754 |
0.125 |
0.73 |
0.63 |
0.59 |
0.54 |
0.56 |
■ |
* |
0.14 |
0.13 |
0.13 |
|
|
300 |
0.0601 |
0.100 |
0.67 |
0.58 |
0.55 |
0.49 |
0.52® 0.4913' |
■ |
|
0.13 |
0.13 |
0.12 |
|
|
400 |
0.0470 |
■ |
0.59 |
0.52 |
0.50 |
0.35 |
0.46 |
■ |
■ |
■ |
- |
■ |
|
