Description
Standards
International : IEC 60502National : BS 7870-4.10
Description
Important Note: this information is for general guidance only, based on standard design options. Exact data will vary based upon the options required, and therefore a full data sheet for the exact design should be requested prior to any order.
Voltage Rating:
- 19/33 (36) kV
Typical Constructions:
Conductors
- Stranded Copper or
- Stranded Aluminium
- Option - water swellable powders or tapes
Conductor Screen
- SC XLPE
Insulation
- XLPE
Insulation Screen
- Bonded SC XLPE
- Option - cold strippable SC XLPE
Paper separation Tapes
- Option - water swellable tapes
Copper Wire Screen
- Number and diameter of wires dependant upon required earth fault rating
- Option - copper equalising tapes applied helically
Sheath
- Black MDPE
- Option - LSOH material
- Sheath embossed or indented with year of manufacture, size and type of conductor and voltage in accordance with design standard employed
- Option - sequential metre marking
Docs and info
Typical Data for cables with Copper conductors
Nominal cross-sectional area |
mm² |
70 |
95 |
120 |
150 |
185 |
240 |
300 |
400 |
500 |
630 |
800 |
1000 |
Approximate diameter over conductor |
mm |
9.8 |
11.5 |
12.8 |
14.3 |
15.9 |
18.4 |
20.5 |
23.2 |
26.2 |
30.3 |
34.7 |
38 |
Approximate diameter over insulation |
mm |
27 |
28.7 |
30 |
31.5 |
33.1 |
35.6 |
38.1 |
41.2 |
44.2 |
48.3 |
52.7 |
57.3 |
Approximate overall diameter |
mm |
34.1 |
36.1 |
37.5 |
39.3 |
41 |
43.8 |
46.6 |
50.2 |
53.4 |
58 |
66 |
71 |
Approximate weight of Cable |
kg/m |
1560 |
1880 |
2160 |
2480 |
2860 |
3530 |
4220 |
5150 |
6250 |
7740 |
9630 |
12200 |
Minimum bending radius (static) |
mm |
340 |
360 |
380 |
390 |
420 |
440 |
470 |
500 |
540 |
580 |
660 |
710 |
Maximum pulling tension on Cable |
kg |
350 |
475 |
600 |
750 |
925 |
1200 |
1500 |
2000 |
2500 |
3150 |
4000 |
5000 |
Maximum DC resistance |
W/km |
0.268 |
0.193 |
0.153 |
0.124 |
0.0991 |
0.0754 |
0.0601 |
0.047 |
0.0366 |
0.0283 |
0.0221 |
0.0176 |
Maximum AC resistance |
W/km |
0.342 |
0.247 |
0.196 |
0.159 |
0.128 |
0.098 |
0.079 |
0.063 |
0.051 |
0.042 |
0.035 |
0.03 |
Inductance (L) @ 50Hz @ 90°C |
mH/km |
0.43 |
0.41 |
0.4 |
0.38 |
0.37 |
0.36 |
0.36 |
0.33 |
0.32 |
0.31 |
0.3 |
0.29 |
Approximate Capacitance (C) |
µF/km |
0.14 |
0.16 |
0.17 |
0.18 |
0.2 |
0.22 |
0.25 |
0.26 |
0.29 |
0.32 |
0.35 |
0.38 |
Short circuit ratings |
|||||||||||||
1 Second Short Circuit Rating |
kA |
9.7 |
13.5 |
17.1 |
21 |
26.3 |
34.6 |
43.4 |
57.7 |
72.1 |
90.7 |
115.1 |
143.8 |
1 Second Short Circuit Rating |
kA |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
1 Second Short Circuit Rating |
kA |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
Current Carrying Capacity (cables laid in trefoil) |
|||||||||||||
Direct Buried |
A |
270 |
320 |
360 |
410 |
460 |
530 |
600 |
690 |
760 |
850 |
930 |
1010 |
Single way ducts |
A |
270 |
320 |
360 |
405 |
445 |
520 |
570 |
630 |
700 |
780 |
860 |
920 |
In Air |
A |
320 |
390 |
445 |
510 |
580 |
680 |
770 |
890 |
1020 |
1160 |
1290 |
1430 |
Values for minimum bending radius are multiplied by two for cables being laid (dynamic) |
|||||||||||||
Typical Data for cables with Aluminium conductors
Nominal cross-sectional area |
mm² |
70 |
95 |
120 |
150 |
185 |
240 |
300 |
400 |
500 |
630 |
800 |
1000 |
1200 |
Approximate diameter over conductor |
mm |
9.8 |
11.4 |
12.9 |
14 |
16.2 |
18 |
20.5 |
23.3 |
26.4 |
30 |
34.7 |
38 |
41.2 |
Approximate diameter over insulation |
mm |
27 |
28.6 |
30.1 |
31.2 |
33.4 |
35.2 |
38.1 |
41.3 |
44.4 |
48 |
52.7 |
57.3 |
60.2 |
Approximate overall diameter |
mm |
34.1 |
36 |
37.6 |
39 |
41.3 |
43.4 |
46.6 |
50.2 |
53.7 |
57.6 |
66 |
71 |
74 |
Approximate weight of Cable |
kg/m |
1140 |
1290 |
1430 |
1550 |
1760 |
1990 |
2330 |
2740 |
3200 |
3770 |
4720 |
5480 |
6090 |
Minimum bending |
mm |
340 |
360 |
380 |
390 |
420 |
440 |
470 |
500 |
540 |
580 |
660 |
710 |
740 |
Maximum pulling |
kg |
210 |
285 |
360 |
450 |
555 |
720 |
900 |
1200 |
1500 |
1890 |
2400 |
3000 |
3600 |
Maximum DC resistance |
W/km |
0.443 |
0.32 |
0.253 |
0.206 |
0.164 |
0.125 |
0.1 |
0.0778 |
0.0605 |
0.0469 |
0.0367 |
0.0291 |
0.0247 |
Maximum AC resistance |
W/km |
0.568 |
0.411 |
0.325 |
0.265 |
0.211 |
0.162 |
0.13 |
0.102 |
0.081 |
0.064 |
0.052 |
0.044 |
0.039 |
Inductance (L) @ 50Hz @ 90°C |
mH/km |
0.43 |
0.41 |
0.4 |
0.38 |
0.37 |
0.36 |
0.36 |
0.33 |
0.32 |
0.31 |
0.3 |
0.29 |
0.29 |
Approximate |
µF/km |
0.14 |
0.16 |
0.17 |
0.18 |
0.2 |
0.22 |
0.25 |
0.26 |
0.29 |
0.32 |
0.35 |
0.38 |
0.41 |
Short circuit ratings |
||||||||||||||
1 Second Short Circuit Rating |
kA |
6.8 |
9.2 |
11.6 |
14.5 |
17.8 |
23.1 |
28.8 |
38.3 |
47.8 |
60.2 |
76.4 |
95.4 |
114.4 |
1 Second Short Circuit Rating |
kA |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
4.8 |
1 Second Short Circuit Rating |
kA |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
8.2 |
Current Carrying Capacity (cables laid in trefoil) |
||||||||||||||
Direct Buried |
A |
210 |
250 |
280 |
320 |
360 |
415 |
475 |
550 |
610 |
690 |
780 |
860 |
920 |
Single way ducts |
A |
210 |
250 |
280 |
320 |
350 |
415 |
460 |
520 |
570 |
650 |
770 |
800 |
980 |
In Air |
A |
250 |
305 |
345 |
400 |
450 |
530 |
600 |
700 |
820 |
940 |
1070 |
1210 |
1325 |
Values for minimum bending radius are multiplied by two for cables being laid (dynamic) |
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