EHV Power Cable

EHV Power Cable
EHV Power Cable Pack
EHV Power Cable Cross

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

  • IS 7098 Part 3

Voltage Grade

  • 38 / 66 (E)

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