High Tension Power Cable 1 Core
Application
High voltage power transmission cable with aluminium or copper conductor, suitable for industrial plants, utility networks, and power distribution systems. Ideal for fixed installations in ground, ducts, or air, where mechanical protection is provided by non-magnetic aluminium armouring and high thermal stability is ensured by XLPE insulation. Supports voltage grades from 3.3 kV to 33 kV for earthed and unearthed systems.
Standard
IS 7098 Part 2
IS 8130 (Conductor)
IS 5831 (Sheath)
Technical Data
Nominal Voltage: 3.3 kV to 33 kV (Earthed and Unearthed systems) Temperature Range: -10°C to 90°C Minimum Bending Radius: 15x cable diameter
Cable Construction
Conductor: Stranded compact circular aluminium or copper, Class 2 per IS 8130.Conductor Screening: Extruded semiconducting compound.Insulation: Cross-linked polyethylene (XLPE).Insulation Screening: Extruded semiconducting compound followed by helically wrapped copper tape.Inner Sheath: Extruded PVC Type ST-2 per IS 5831 (Options: FR, FR-LSH).Armouring: Single layer of non-magnetic aluminium round wire or flat strip.Outer Sheath: Extruded PVC Type ST-2 per IS 5831 (Options: FR, FR-LSH).
Voltage Grade Variants
3.3 kV (E) & (UE) Unscreened & Screened cable
3.8/6.6 kV Screened cable
6.35/11 kV Screened cable / 6.6 kV (UE)
11/11 kV Screened cable / 11 kV (UE)
12.7/22 kV Screened cable / 22 kV (E)
19/33 kV Screened cable / 33 kV (E)
33 kV (UE) Screened cable
E: Earthed system, UE: Unearthed system
Cable Design Parameters
When ordering, specify: Conductor Type (Aluminium or Copper), Voltage Grade, Sheath Type (PVC Type ST-2, FR, or FR-LSH), Armouring (Strip or Wire).
1.9/3.3 kV (E) & 3.3/3.3 kV (UE) Copper Conductor
Nominal Cross-Sectional Area (mm²)
Nominal Insulation Thickness (mm)
Unarmoured Cable
Min. Inner Sheath Thickness (mm)
Strip Armoured Cable
Wire Armoured Cable
Nominal Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
Nominal Strip Dimensions (mm)
Min. Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
Nominal Wire Diameter (mm)
Min. Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
35
2.5
2.0
20
694
0.3
4 x 0.8
1.40
22
739
1.6
1.40
22
810
50
2.5
2.0
21
832
0.3
4 x 0.8
1.40
23
882
1.6
1.40
23
955
70
2.5
2.0
23
1063
0.3
4 x 0.8
1.40
25
1116
1.6
1.40
25
1199
95
2.5
2.0
25
1350
0.3
4 x 0.8
1.40
27
1405
1.6
1.40
27
1496
120
2.5
2.0
26
1608
0.3
4 x 0.8
1.40
28
1669
1.6
1.56
28
1790
150
2.5
2.0
28
1896
0.3
4 x 0.8
1.56
30
1982
1.6
1.56
30
2086
185
2.5
2.2
30
2290
0.3
4 x 0.8
1.56
32
2351
2.0
1.56
32
2534
240
2.5
2.2
32
2861
0.4
4 x 0.8
1.56
34
2931
2.0
1.56
34
3116
300
2.5
2.2
34
3459
0.4
4 x 0.8
1.56
36
3531
2.0
1.56
36
3734
400
2.6
2.2
37
4302
0.4
4 x 0.8
1.56
39
4388
2.0
1.72
40
4634
500
2.8
2.4
41
5437
0.4
4 x 0.8
1.72
43
5520
2.0
1.88
44
5799
630
3.0
2.6
45
6906
0.5
4 x 0.8
1.88
47
6991
2.5
2.04
49
7433
800
3.3
2.6
49
8653
0.5
4 x 0.8
2.04
51
8788
2.5
2.04
53
9225
1000
3.5
2.8
54
10732
0.6
4 x 0.8
2.20
56
10869
2.5
2.20
58
11353
3.8/6.6 kV (E) Copper Conductor
Nominal Cross-Sectional Area (mm²)
Nominal Insulation Thickness (mm)
Unarmoured Cable
Min. Inner Sheath Thickness (mm)
Strip Armoured Cable
Wire Armoured Cable
Nominal Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
Nominal Strip Dimensions (mm)
Min. Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
Nominal Wire Diameter (mm)
Min. Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
25
2.8
2.0
19
603
0.3
4 x 0.8
1.40
20
649
1.6
1.40
21
720
35
2.8
2.0
21
718
0.3
4 x 0.8
1.40
21
761
1.6
1.40
23
837
50
2.8
2.0
22
857
0.3
4 x 0.8
1.40
22
905
1.6
1.40
24
984
70
2.8
2.0
23
1090
0.3
4 x 0.8
1.40
24
1141
1.6
1.40
25
1229
95
2.8
2.0
25
1378
0.3
4 x 0.8
1.40
26
1440
1.6
1.40
27
1528
120
2.8
2.0
27
1638
0.3
4 x 0.8
1.40
27
1703
1.6
1.56
29
1824
150
2.8
2.0
28
1927
0.3
4 x 0.8
1.56
29
2020
1.6
1.56
31
2121
185
2.8
2.2
30
2323
0.3
4 x 0.8
1.56
30
2390
2.0
1.56
33
2566
240
2.8
2.2
32
2896
0.4
4 x 0.8
1.56
33
2965
2.0
1.56
35
3158
300
3.0
2.2
35
3522
0.4
4 x 0.8
1.56
35
3599
2.0
1.56
37
3803
400
3.3
2.2
38
4397
0.4
4 x 0.8
1.72
39
4518
2.0
1.72
41
4744
500
3.5
2.4
42
5542
0.5
4 x 0.8
1.72
43
5629
2.0
1.88
45
5919
630
3.5
2.6
46
6988
0.5
4 x 0.8
1.88
46
7078
2.5
2.04
50
7526
800
3.5
2.6
50
8689
0.5
4 x 0.8
2.04
50
8823
2.5
2.04
54
9273
1000
3.6
2.8
54
10751
0.6
4 x 0.8
2.20
55
10888
2.5
2.20
58
11371
6.35/11 kV (E) Copper Conductor
Nominal Cross-Sectional Area (mm²)
Nominal Insulation Thickness (mm)
Unarmoured Cable
Min. Inner Sheath Thickness (mm)
Strip Armoured Cable
Wire Armoured Cable
Nominal Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
Nominal Strip Dimensions (mm)
Min. Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
Nominal Wire Diameter (mm)
Min. Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
25
3.6
2.0
21
666
0.3
4 x 0.8
1.40
21
716
1.6
1.40
23
789
35
3.6
2.0
22
784
0.3
4 x 0.8
1.40
23
838
1.6
1.40
24
915
50
3.6
2.0
23
925
0.3
4 x 0.8
1.40
24
977
1.6
1.40
25
1065
70
3.6
2.0
25
1163
0.3
4 x 0.8
1.40
25
1225
1.6
1.40
27
1314
95
3.6
2.0
27
1456
0.3
4 x 0.8
1.40
27
1521
1.6
1.56
29
1642
120
3.6
2.0
28
1720
0.3
4 x 0.8
1.56
29
1812
1.6
1.56
31
1914
150
3.6
2.2
30
2044
0.3
4 x 0.8
1.56
31
2110
2.0
1.56
33
2286
185
3.6
2.2
32
2415
0.4
4 x 0.8
1.56
32
2485
2.0
1.56
34
2670
240
3.6
2.2
34
2994
0.4
4 x 0.8
1.56
34
3065
2.0
1.56
37
3268
300
3.6
2.2
36
3599
0.4
4 x 0.8
1.56
36
3681
2.0
1.72
39
3925
400
3.6
2.2
39
4439
0.4
4 x 0.8
1.72
40
4559
2.0
1.72
42
4794
500
3.6
2.4
43
5558
0.5
4 x 0.8
1.72
43
5644
2.0
1.88
46
5934
630
3.6
2.6
47
7005
0.5
4 x 0.8
1.88
47
7094
2.5
2.04
50
7543
800
3.6
2.8
50
8757
0.5
4 x 0.8
2.04
50
8840
2.5
2.04
54
9290
1000
3.6
2.8
54
10751
0.6
4 x 0.8
2.20
55
10888
2.5
2.20
58
11371
1.9/3.3 kV (E) & 3.3/3.3 kV (UE) Aluminium Conductor
Nominal Cross-Sectional Area (mm²)
Nominal Insulation Thickness (mm)
Unarmoured Cable
Min. Inner Sheath Thickness (mm)
Strip Armoured Cable
Wire Armoured Cable
Nominal Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
Nominal Strip Dimensions (mm)
Min. Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
Nominal Wire Diameter (mm)
Min. Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Weight (kg/km)
25
2.5
2.0
19
390
0.3
4 x 0.8
1.40
19
470
1.6
1.40
21
543
35
2.5
2.0
20
430
0.3
4 x 0.8
1.40
20
531
1.6
1.40
22
601
50
2.5
2.0
21
480
0.3
4 x 0.8
1.40
21
600
1.6
1.40
23
673
70
2.5
2.0
23
550
0.3
4 x 0.8
1.40
23
709
1.6
1.40
25
792
95
2.5
2.0
25
650
0.3
4 x 0.8
1.40
25
839
1.6
1.40
27
930
120
2.5
2.0
26
730
0.3
4 x 0.8
1.40
27
955
1.6
1.56
28
1077
150
2.5
2.0
28
830
0.3
4 x 0.8
1.56
28
1100
1.6
1.56
30
1204
185
2.5
2.2
30
950
0.3
4 x 0.8
1.56
30
1251
2.0
1.56
32
1434
240
2.5
2.2
32
1100
0.4
4 x 0.8
1.56
32
1484
2.0
1.56
34
1669
300
2.5
2.2
34
1250
0.4
4 x 0.8
1.56
34
1712
2.0
1.56
36
1915
400
2.6
2.2
37
1500
0.4
4 x 0.8
1.56
37
2069
2.0
1.72
40
2315
500
2.8
2.4
41
1850
0.4
4 x 0.8
1.72
41
2545
2.0
1.88
44
2824
630
3.0
2.6
45
2250
0.5
4 x 0.8
1.88
45
3138
2.5
2.04
49
3579
800
3.3
2.6
49
2750
0.5
4 x 0.8
2.04
50
3849
2.5
2.04
53
4285
1000
3.5
2.8
54
3350
0.6
4 x 0.8
2.20
55
4683
2.5
2.20
58
5166
Table 11: 6.35/11 kV (E) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
6.35/11 kV (E) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
Nominal Size of Conductor (sq.mm)
Nominal Insulation Thickness (mm)
Unarmoured Cable
Minimum Inner Sheath Thickness (mm)
Strip Armoured Cable
Wire Armoured Cable
Nominal Thickness of PVC Outer Sheath (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Strip (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Wire (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
25
3.6
2.0
21
516
0.3
4 x 0.8
1.40
21
566
1.6
1.40
23
639
35
3.6
2.0
22
575
0.3
4 x 0.8
1.40
23
630
1.6
1.40
24
706
1000
3.6
2.8
54
4565
0.6
4 x 0.8
2.20
55
4701
2.5
2.20
58
5185
Table 12: 11/11 kV (UE) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
11/11 kV (UE) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
Nominal Size of Conductor (sq.mm)
Nominal Insulation Thickness (mm)
Unarmoured Cable
Minimum Inner Sheath Thickness (mm)
Strip Armoured Cable
Wire Armoured Cable
Nominal Thickness of PVC Outer Sheath (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Strip (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Wire (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
25
5.5
2.0
25
683
0.3
4 x 0.8
1.40
25
737
1.6
1.40
27
834
1000
5.5
3.0
59
5002
0.6
4 x 0.8
2.20
59
5094
2.5
2.36
62
5701
Table 13: 12.7/22 kV (E) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
12.7/22 kV (E) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
Nominal Size of Conductor (sq.mm)
Nominal Insulation Thickness (mm)
Unarmoured Cable
Minimum Inner Sheath Thickness (mm)
Strip Armoured Cable
Wire Armoured Cable
Nominal Thickness of PVC Outer Sheath (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Strip (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Wire (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
25
6.0
2.0
26
730
0.3
4 x 0.8
1.40
26
790
1.6
1.56
28
907
1000
6.0
3.0
60
5107
0.6
4 x 0.8
2.36
60
5242
2.5
2.36
63
5787
Table 14: 19/33 kV (E) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
19/33 kV (E) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
Nominal Size of Conductor (sq.mm)
Nominal Insulation Thickness (mm)
Unarmoured Cable
Minimum Inner Sheath Thickness (mm)
Strip Armoured Cable
Wire Armoured Cable
Nominal Thickness of PVC Outer Sheath (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Strip (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Wire (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
25
8.8
2.2
32
1060
0.4
4 x 0.8
1.56
32
1130
2.0
1.56
35
1323
1000
8.8
3.2
66
5789
0.7
4 x 0.8
2.52
66
5927
3.15
2.68
71
6813
Table 15: 33/33 kV (UE) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
33/33 kV (UE) Single Core Aluminium Conductor XLPE Insulated Armoured & Unarmoured Cable as per IS 7098-2
Nominal Size of Conductor (sq.mm)
Nominal Insulation Thickness (mm)
Unarmoured Cable
Minimum Inner Sheath Thickness (mm)
Strip Armoured Cable
Wire Armoured Cable
Nominal Thickness of PVC Outer Sheath (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Strip (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
Nominal Dimension of Wire (mm)
Minimum PVC Outer Sheath Thickness (mm)
Approx. Overall Diameter (mm)
Approx. Cable Weight (kg/km)
25
9.0
2.2
32
1048
0.4
4 x 0.8
1.56
33
1103
2.0
1.56
36
1266
1000
9.0
3.2
66
5617
0.6
4 x 0.8
2.52
67
5613
3.15
2.68
72
6450
Electrical Parameters
Current Carrying Capacity
Nominal Cross-Sectional Area (mm²)
Aluminium (Amps)
Copper (Amps)
In Ground at 30°C
In Duct at 30°C
In Air at 40°C
In Ground at 30°C
In Duct at 30°C
In Air at 40°C
35
117
104
139
151
134
181
50
138
123
166
178
158
216
70
168
149
208
216
191
269
95
200
177
252
257
227
326
120
227
201
292
290
256
376
150
252
223
329
323
285
424
185
285
251
380
360
317
487
240
326
286
448
411
361
568
300
365
319
511
456
399
643
400
412
359
593
508
443
735
500
461
401
680
559
486
828
630
514
445
777
611
529
930
800
552
476
863
639
550
1003
1000
595
509
954
672
575
1083
Capacitance
Nominal Cross-Sectional Area (mm²)
Capacitance (µF/km)
1.9/3.3 & 3.3/3.3 kV
3.8/6.6 kV
6.6/6.6 & 6.35/11 kV
11/11 kV
12.7/22 kV
19/33 kV
33/33 kV
35
-
-
-
-
-
-
-
50
0.32
0.26
0.22
-
-
-
-
70
0.37
0.30
0.24
0.18
-
-
-
95
0.41
0.34
0.28
0.20
0.19
0.14
0.14
120
0.46
0.38
0.30
0.22
0.20
0.16
0.15
150
0.50
0.40
0.33
0.23
0.22
0.16
0.16
185
0.55
0.44
0.36
0.25
0.24
0.18
0.17
240
0.61
0.49
0.40
0.28
0.26
0.19
0.18
300
0.67
0.51
0.43
0.30
0.28
0.21
0.20
400
0.75
0.52
0.48
0.34
0.31
0.23
0.22
500
0.79
0.56
0.55
0.38
0.35
0.26
0.24
630
0.83
0.64
0.62
0.43
0.40
0.29
0.27
800
0.87
0.71
0.69
0.47
0.44
0.32
0.30
1000
0.88
0.75
0.75
0.51
0.47
0.34
0.32
Reactance
Nominal Cross-Sectional Area (mm²)
1.9/3.3 & 3.3/3.3 kV
3.8/6.6 kV
6.6/6.6 & 6.35/11 kV
11/11 kV
12.7/22 kV
19/33 kV
33/33 kV
Armoured (Ω/km)
Unarmoured (Ω/km)
Armoured (Ω/km)
Unarmoured (Ω/km)
Armoured (Ω/km)
Unarmoured (Ω/km)
Armoured (Ω/km)
Unarmoured (Ω/km)
Armoured (Ω/km)
Unarmoured (Ω/km)
Armoured (Ω/km)
Unarmoured (Ω/km)
Armoured (Ω/km)
Unarmoured (Ω/km)
35
0.139
0.125
-
-
-
-
-
-
-
-
-
-
-
-
50
0.124
0.117
0.126
0.121
0.121
0.126
0.140
0.136
0.143
0.155
0.140
0.151
-
-
70
0.115
0.108
0.117
0.112
0.112
0.117
0.130
0.126
0.133
0.144
0.133
0.141
-
-
95
0.109
0.103
0.110
0.106
0.106
0.111
0.124
0.120
0.126
0.136
0.127
0.133
0.139
0.136
120
0.104
0.098
0.105
0.101
0.101
0.105
0.118
0.115
0.120
0.130
0.122
0.127
0.130
0.129
150
0.101
0.096
0.102
0.099
0.099
0.103
0.115
0.111
0.117
0.127
0.118
0.123
0.127
0.126
185
0.099
0.093
0.100
0.096
0.096
0.100
0.111
0.108
0.112
0.123
0.115
0.120
0.123
0.122
240
0.095
0.089
0.096
0.093
0.093
0.096
0.106
0.103
0.108
0.117
0.110
0.114
0.117
0.116
300
0.092
0.088
0.094
0.091
0.091
0.093
0.103
0.100
0.105
0.113
0.105
0.111
0.113
0.113
400
0.089
0.085
0.091
0.089
0.089
0.090
0.099
0.096
0.101
0.109
0.102
0.106
0.109
0.108
500
0.087
0.082
0.090
0.087
0.087
0.087
0.096
0.093
0.097
0.105
0.099
0.102
0.105
0.104
630
0.086
0.082
0.088
0.085
0.085
0.085
0.093
0.091
0.094
0.101
0.096
0.099
0.101
0.101
800
0.085
0.081
0.085
0.083
0.083
0.083
0.090
0.088
0.091
0.098
0.092
0.096
0.098
0.097
1000
0.084
0.080
0.084
0.082
0.082
0.082
0.089
0.086
0.090
0.096
0.090
0.094
0.096
0.095
