1,1 Circular or compacted circular stranded conductors (class 2)
121 Shaped stranded conductor (class 2)
131 Cables having conductors of nominal cross-sectional area 50mm2 and above have shaped stranded conductors (class 2)
TABLE 8B
T
Note:
hree core 600/1000 V cables with stranded copper conductors
1 |
2 |
3 |
4 |
5 |
6 |
Nominal cross- |
Thickness of |
Thickness of |
Nominal steel |
Thickness of |
Approximate |
sectional area |
insulation |
extruded |
armour wire |
oversheath |
overall |
of conductor111 |
|
bedding |
diameter |
|
diameter |
mm2 |
mm |
mm |
mm |
mm |
mm |
2.5 |
0.9 |
1.4 |
0.9 |
1.8 |
17.2 |
4 |
1.0 |
1.4 |
0.9 |
1.8 |
19.0 |
6 |
1.0 |
1.4 |
1.25 |
1.8 |
21.0 |
10 |
1.2 |
1.4 |
1.25 |
1.8 |
24.0 |
16 |
1.2 |
1.4 |
1.25 |
1.8 |
26.0 |
Circular or compacted circular stranded conductors (class 2)
With dual layer sheath on Type 2 cables, the minimum thickness of any layer shall not be less than 0.8mm nominalThree core 600/1000 V cables with solid aluminium conductors
when insulated with XLPE or HEPR (Type 1 and Type 2)
1 |
2 |
3 |
4 |
5 |
6 |
Nominal cross- sectional area of conductor |
Thickness of insulation |
Thickness of extruded bedding |
Nominal aluminium armour wire diameter |
Thickness of oversheath |
Approximate overall diameter |
mm2 |
mm |
mm |
mm |
mm |
mm |
16'11 |
0.7 |
0.8 |
1.25 |
1.6 |
20.3 |
25m |
0.9 |
1.0 |
1.6 |
1.7 |
24.9 |
2512’ |
0.9 |
1.0 |
1.6 |
1.7 |
22.5 |
35ni* |
0.9 |
1.0 |
1.6 |
1.8 |
27.3 |
35’21* |
0.9 |
1.0 |
1.6 |
1.8 |
24.4 |
50131 |
1.0 |
1.0 |
1.6 |
1.8 |
26.8 |
70 * |
1.1 |
1.0 |
1.6 |
1.9 |
30.2 |
95 |
1.1 |
1.2 |
2.0 |
2.1 |
34.8 |
120 * |
1.2 |
1.2 |
2.0 |
2.2 |
37.8 |
150 |
1.4 |
1.4 |
2.5 |
2.3 |
42.7 |
185 * |
1.6 |
1.4 |
2.5 |
2.4 |
46.7 |
240 |
1.7 |
1.4 |
2.5 |
2.6 |
51.5 |
300 * |
1.8 |
1.6 |
2.5 |
2.7 |
56.2 |
<n Solid circular conductor (class 1)
121 Solid sector shaped conductor (class 1)
131 Cables having conductors of nominal cross-sectional area 50mm2 and above have shaped solid conductors (class 1)
* Type 2 cable sizes
Note: With dual layer sheaths on Type 2 cables, the minimum thickness of any layer shall not be less than
0.8mm nominal.
TABLE 10A
Four core 600/1000 V cables with stranded copper conductors
when insulated with XLPE or HEPR (Type 1 and Type 21
1 |
2 |
3 |
4 |
5 |
6 |
Nominal cross- |
Thickness of |
Thickness of |
Nominal steel |
Thickness of |
Approximate |
sectional area |
insulation |
extruded |
armour wire |
oversheath |
overall |
of conductor |
|
bedding |
diameter |
|
diameter |
mm’ |
mm |
mm |
mm |
mm |
mm |
1.5'” |
0.6 |
0.8 |
0.9 |
1.3 |
13.3 |
2.5’11* |
0.7 |
0.8 |
0.9 |
1.4 |
15.0 |
4(11 * |
0.7 |
0.8 |
0.9 |
1.4 |
16.4 |
6ni * |
0.7 |
0.8 |
1.25 |
1.5 |
18.7 |
10!11 * |
0.7 |
0.8 |
1.25 |
1.5 |
21.1 |
16(1' * |
0.7 |
0.8 |
1.25 |
1.6 |
23.4 |
25’11 |
0.9 |
1.0 |
1.6 |
1.7 |
28.9 |
25IZI |
0.9 |
1.0 |
1.6 |
1.7 |
26.1 |
35111 |
0.9 |
1.0 |
1.6 |
1.8 |
31.9 |
35‘21 |
0.9 |
1.0 |
1.6 |
1.8 |
28.6 |
50131 |
1.0 |
1.0 |
1.6 |
1.9 |
32.0 |
70 |
1.1 |
1.2 |
2.0 |
2.1 |
37.7 |
95 |
1.1 |
1.2 |
2.0 |
2.2 |
41.7 |
120 |
1.2 |
1.4 |
2.5 |
2.3 |
47.1 |
150 |
1.4 |
1.4 |
2.5 |
2.4 |
51.4 |
185 |
1.6 |
1.4 |
2.5 |
2.6 |
56.6 |
240 |
1.7 |
1.6 |
2.5 |
2.7 |
63.0 |
300 |
1.8 |
1.6 |
2.5 |
2.9 |
68.8 |
400 |
2.0 |
1.8 |
3.15 |
3.2 |
78.1 |
”* Circular or compacted circular stranded conductors (class 2)
121 Shaped stranded conductor (class 2)
131 Cables having conductors of nominal cross-sectional area 50mm2 and above have shaped stranded conductors (class 2)TABLE 10B
Four core 600/1000 V cables with stranded copper conductors
when insulated withTI Z (Type 2)
1 |
2 |
3 |
4 |
5 |
6 |
Nominal cross- |
Thickness of |
Thickness of |
Nominal steel |
Thickness of |
Approximate |
sectional area |
insulation |
extruded |
armour wire |
oversheath |
overall |
of conductor’11 |
|
bedding |
diameter |
|
diameter |
mm2 |
mm |
mm |
mm |
mm |
mm |
2.5 |
0.9 |
1.4 |
0.9 |
1.8 |
18.4 |
4 |
1.0 |
1.4 |
1.25 |
1.8 |
21.0 |
6 |
1.0 |
1.4 |
1.25 |
1.8 |
22.5 |
10 |
1.2 |
1.4 |
1.25 |
1.8 |
26.0 |
16 |
1.2 |
1.6 |
1.6 |
1.8 |
30.0 |
Circular or compacted circular stranded conductors {class 2)
Note: With dual layer sheath onType 2 cables, the minimum thickness of each layer shall not be less than
0.8mm nominal.Four core 600/1000 V cables with solid aluminium conductors
when insulated with XLPE or HEPR (Type 1 and Type 2)
1 |
2 |
3 |
4 |
5 |
6 |
Nominal cross- sectional area of conductor |
Thickness of insulation |
Thickness of extruded bedding |
Nominal aluminium armour wire diameter |
Thickness of oversheath |
Approximate overall diameter |
mm2 |
mm |
mm |
mm |
mm |
mm |
16'” |
0.7 |
0.8 |
1.25 |
1.6 |
21.8 |
25'11 |
0.9 |
1.0 |
1.6 |
1.7 |
26.9 |
25'21 |
0.9 |
1.0 |
1.6 |
1.7 |
24.6 |
35(1124 |
0.9 |
1.0 |
1.6 |
1.8 |
29.5 |
35(21‘ |
0.9 |
1.0 |
1.6 |
1.8 |
27.0 |
50,3) |
1.0 |
1.0 |
1.6 |
1.9 |
30.0 |
70 * |
1.1 |
1.2 |
2.0 |
2.1 |
35.3 |
95 |
1.1 |
1.2 |
2.0 |
2.2 |
39.0 |
120 * |
1.2 |
1.4 |
2.5 |
2.3 |
44.0 |
150 |
1.4 |
1.4 |
2.5 |
2.4 |
47.9 |
185 * |
1.6 |
1.4 |
2.5 |
2.6 |
52.7 |
240 |
1.7 |
1.6 |
2.5 |
2.7 |
58.5 |
300 * |
1.8 |
1.6 |
2.5 |
2.9 |
63.8 |
111 Solid circular conductor (class 1)
(2' Solid sector shaped conductor (class 1}
,3) Cables having conductors of nominal cross-sectional area 50mm2 and above have shaped solid conductors (class 1)Four core 600/1000 V cables with reduced neutral conductor and with stranded copper conductors
(Type 1 only!