|
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
radius (static)
|
mm
|
340
|
360
|
380
|
390
|
420
|
440
|
470
|
500
|
540
|
580
|
660
|
710
|
740
|
|
Maximum pulling
tension on Cable
|
kg
|
210
|
285
|
360
|
450
|
555
|
720
|
900
|
1200
|
1500
|
1890
|
2400
|
3000
|
3600
|
|
Maximum DC resistance
(R) @ 20°C
|
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
(R’) @ 90°C
|
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
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
|
0.41
|
|
Short circuit ratings
|
|
1 Second Short Circuit Rating
of Conductor (90 to 250°C)
|
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
of a 35mm2 Copper wire
screen (80 to 250°C)
|
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
of a 50mm2 Copper wire
screen (80 to 250°C)
|
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)
Ampacity Values based on :
· Depth of cover = 800mm ,
· Thermal resistivity of soil = 1.2K.m/W ,
· Soil temperature = 15°C
· Ambient Air temperature = 25°C
· Maximum conductor temperature = 90°C
|
