EHV Power Cable
Application
Extra High Voltage (EHV) Power Cables are designed for power transmission at voltages ranging from 66 kV to 400 kV, ideal for underground circuits, substations, and connections between power generation units and distribution grids. Suitable for three-phase AC systems, these cables are used in utilities, renewable energy, nuclear, and thermal power stations, offering superior durability and water resistance for direct burial or duct installations.
Standard
Voltage Grade
Technical Data
Dimension
Part Number |
Nominal Cross Sectional Area (mm²) |
Nominal Thickness of Insulation (mm) |
Nominal Thickness of Outer Sheath (mm) |
Approx. Overall Diameter (mm) |
Approx. Net Weight of Cable (kg/km) - Al Cable A2XY |
Approx. Net Weight of Cable (kg/km) - Cu Cable 2XY |
111300100016 |
16 |
0.7 |
1.8 |
11 |
125 |
225 |
111300100025 |
25 |
0.9 |
1.8 |
12 |
170 |
330 |
111300100035 |
35 |
0.9 |
1.8 |
13 |
205 |
425 |
111300100050 |
50 |
1.0 |
1.8 |
15 |
250 |
550 |
111300100070 |
70 |
1.1 |
1.8 |
16 |
335 |
750 |
111300100095 |
95 |
1.1 |
1.8 |
18 |
425 |
1000 |
111300100120 |
120 |
1.2 |
1.8 |
20 |
515 |
1250 |
111300100150 |
150 |
1.4 |
2.0 |
22 |
615 |
1520 |
111300100185 |
185 |
1.6 |
2.0 |
24 |
770 |
1880 |
111300100240 |
240 |
1.7 |
2.0 |
27 |
965 |
2415 |
111300100300 |
300 |
1.8 |
2.0 |
30 |
1160 |
2980 |
111300100400 |
400 |
2.0 |
2.2 |
33 |
1480 |
3800 |
111300100500 |
500 |
2.2 |
2.2 |
36 |
1840 |
4815 |
111300100630 |
630 |
2.4 |
2.2 |
40 |
2350 |
6150 |
111300100800 |
800 |
2.6 |
2.4 |
47 |
2830 |
7840 |
111300101000 |
1000 |
2.8 |
2.6 |
51 |
3670 |
9800 |
Electrical Parameters
Nominal size of conductor (sq.mm) |
Trefoil SPB/CB Aluminium Ground (Amp) |
Trefoil SPB/CB Aluminium Air (Amp) |
Flat SPB/CB Aluminium Ground (Amp) |
Flat SPB/CB Aluminium Air (Amp) |
Fault rating of Aluminium sheath (kA/1 sec) |
Maximum capacitance (uf/km) |
REactance (Ohms/Km) |
Conductor short CKT rating (kA/1 sec) |
95 |
205 |
265 |
205 |
295 |
31.5 |
0.14 |
0.143 |
8.98 |
120 |
230 |
305 |
235 |
340 |
31.5 |
0.15 |
0.137 |
11.34 |
150 |
255 |
345 |
265 |
385 |
31.5 |
0.16 |
0.134 |
14.17 |
185 |
290 |
395 |
305 |
440 |
31.5 |
0.17 |
0.128 |
17.48 |
240 |
335 |
460 |
345 |
520 |
31.5 |
0.19 |
0.124 |
22.68 |
300 |
375 |
525 |
390 |
595 |
31.5 |
0.2 |
0.12 |
28.35 |
400 |
430 |
610 |
445 |
695 |
31.5 |
0.23 |
0.115 |
37.79 |
500 |
490 |
710 |
510 |
805 |
31.5 |
0.25 |
0.111 |
47.24 |
630 |
555 |
815 |
580 |
940 |
31.5 |
0.28 |
0.108 |
59.52 |
Cable Construction
- Conductor: Stranded Compact Circular Aluminium as per Class 2 of IS 8130
- Conductor Screening: Extruded Semiconductor Compound
- Insulation Material: XLPE (Cross linked Polyethylene)
- Insulation Screening: Extruded Semiconducting Compound
- Water Blocking: Water Swellable Tape
- Metallic Sheath: Corrugated Aluminium Sheath followed by Anit corrosive layer
- Outer Sheath: Extruded PE as per IS 7098-3