High Voltage Armoured Power Cable
A high voltage cable, also known as a EHV cable, is a type of electrical cable designed to carry high voltage electricity.It is used for transmitting electrical power over long distances or between different points in an electrical power network.
Construction
Corrugated Aluminum Sheath
- Voltage:
38/66kV, 64/110kV, 76/132kV, 127/220kV - Conductor:
Copper/Aluminum Class 2 - Core:
single core - Cross Sectional Area:
240mm2~2500mm2 - Insulation:
XLPE - Inner Sheath:
Aluminum Sheath - Outer Sheath:
PE (or PVC)
Lead Sheath
- Voltage:
38/66kV, 64/110kV, 76/132kV, 127/220kV - Conductor:
Copper/Aluminum Class 2 - Core:
single core - Cross Sectional Area:
240mm2~2500mm2 - Insulation:
XLPE - Inner Sheath:
Lead Sheath - Outer Sheath:
PE (or PVC)
Copper Wire Shield
- Voltage:
38/66kV, 64/110kV, 76/132kV, 127/220kV - Conductor:
Copper/Aluminum Class 2 - Core:
single core - Cross Sectional Area:
240mm2~2500mm2 - Insulation:
XLPE - Screen:
Copper Wire Screen - Outer Sheath:
PE (or PVC)
Application
High voltage cables are commonly used for applications such as interconnection between transmission lines, underground distribution systems and substations.
Feature
The construction of cables varies depending on the voltage level and the specific application.
For lower voltage levels, the cable consists of solid or stranded conductors with multiple layers of insulation and protective material added around them.
For higher voltage applications, additional layers of insulation and shielding are added to improve the electrical performance and safety of the cable.
38/66 kV Corrugated Aluminum Sheath Cable Parameters
| Nominal Area | Alu. sheath thickness (Minimum) | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | mm | kg/m | kg/m | μF/km |
| 95 | 1.8 | 2.4 | 51 | 4.4 | 5.3 | 0.15 |
| 120 | 1.8 | 2.5 | 53 | 4.8 | 5.9 | 0.16 |
| 150 | 1.8 | 2.6 | 55 | 5.2 | 6.5 | 0.16 |
| 185 | 1.8 | 2.6 | 57 | 5.7 | 7.3 | 0.18 |
| 240 | 1.9 | 2.7 | 60 | 6.5 | 8.5 | 0.19 |
| 300 | 1.9 | 2.8 | 62 | 7.2 | 9.2 | 0.2 |
| 400 | 2 | 3 | 66 | 8.1 | 10.4 | 0.22 |
| 500 | 2.1 | 3 | 69 | 8.9 | 11.9 | 0.24 |
| 630 | 2.2 | 3.1 | 73 | 9.9 | 13.6 | 0.26 |
| 800 | 2.3 | 3.3 | 78 | 11 | 15.9 | 0.29 |
| 1000 | 2.4 | 3.4 | 81 | 12.2 | 18.2 | 0.31 |
64/110kV Corrugated Aluminum Sheath Cable Parameters
| Nominal Area | Alu. sheath thickness (Minimum) | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | mm | kg/m | kg/m | μF/km |
| 150 | 1.5 | 2.8 | 74 | 3.9 | 4.8 | 0.13 |
| 185 | 1.6 | 2.9 | 76 | 4.2 | 4.8 | 0.14 |
| 240 | 1.8 | 3 | 79 | 4.7 | 6.1 | 0.15 |
| 300 | 1.7 | 3 | 81 | 5 | 6.7 | 0.16 |
| 400 | 1.7 | 3.1 | 84 | 5.5 | 7.7 | 0.17 |
| 500 | 1.7 | 3.2 | 88 | 6 | 8.9 | 0.18 |
| 630 | 1.8 | 3.3 | 92 | 6.8 | 10.5 | 0.2 |
| 800 | 1.8 | 3.5 | 97 | 7.6 | 12.4 | 0.22 |
| 1000 | 1.9 | 3.6 | 102 | 8.6 | 14.5 | 0.23 |
| 1200 | 2 | 3.7 | 110 | 10 | 17.3 | 0.26 |
72/132kV Corrugated Aluminum Sheath Cable Parameters
| Nominal Area | Alu. sheath thickness (Minimum) | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | mm | kg/m | kg/m | μF/km |
| 240 | 1.7 | 3.1 | 84 | 5.2 | 6.6 | 0.14 |
| 300 | 1.7 | 3.2 | 86 | 5.5 | 7.3 | 0.15 |
| 400 | 1.7 | 3.3 | 90 | 6 | 8.3 | 0.16 |
| 500 | 1.8 | 3.4 | 93 | 6.7 | 9.6 | 0.17 |
| 630 | 1.8 | 3.5 | 97 | 7.4 | 11.1 | 0.18 |
| 800 | 1.9 | 3.6 | 102 | 8.4 | 13.1 | 0.2 |
| 1000 | 2 | 3.8 | 107 | 9.4 | 15.3 | 0.22 |
127/220kV Corrugated Aluminum Sheath Cable Parameters
| Nominal Area | Alu. sheath thickness (Minimum) | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | mm | kg/m | kg/m | μF/km |
| 400 | 2 | 3.8 | 108 | 8.5 | 10.8 | 0.13 |
| 500 | 2.1 | 3.9 | 112 | 9.3 | 12.2 | 0.14 |
| 630 | 2.1 | 4 | 116 | 10.1 | 13.8 | 0.15 |
| 800 | 2.2 | 4.1 | 121 | 11.2 | 16 | 0.16 |
| 1000 | 2.3 | 4.3 | 126 | 12.3 | 18.3 | 0.17 |
| 1200 | 2.3 | 4.4 | 132 | 13.7 | 20.9 | 0.19 |
| 1400 | 2.4 | 4.5 | 137 | 14.9 | 23.2 | 0.2 |
| 1600 | 2.5 | 4.6 | 141 | 16.1 | 25.5 | 0.21 |
| 2000 | 2.6 | 4.8 | 149 | 18.2 | 30.1 | 0.23 |
38/66kV Lead Sheath Cable Parameters
| Nominal Area | Alu. sheath thickness (Minimum) | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | mm | kg/m | kg/m | μF/km |
| 95 | 1.8 | 2.4 | 51 | 4.4 | 5.3 | 0.15 |
| 120 | 1.8 | 2.5 | 53 | 4.8 | 5.9 | 0.16 |
| 150 | 1.8 | 2.6 | 55 | 5.2 | 6.5 | 0.16 |
| 185 | 1.8 | 2.6 | 57 | 5.7 | 7.3 | 0.18 |
| 240 | 1.9 | 2.7 | 60 | 6.5 | 8.5 | 0.19 |
| 300 | 1.9 | 2.8 | 62 | 7.2 | 9.2 | 0.2 |
| 400 | 2 | 3 | 66 | 8.1 | 10.4 | 0.22 |
| 500 | 2.1 | 3 | 69 | 8.9 | 11.9 | 0.24 |
| 630 | 2.2 | 3.1 | 73 | 9.9 | 13.6 | 0.26 |
| 800 | 2.3 | 3.3 | 78 | 11 | 15.9 | 0.29 |
| 1000 | 2.4 | 3.4 | 81 | 12.2 | 18.2 | 0.31 |
| 1200 | 2.5 | 3.5 | 89 | 14 | 21.3 | 0.36 |
| 1400 | 2.6 | 3.6 | 93 | 15.3 | 23.6 | 0.38 |
| 1600 | 2.7 | 3.8 | 97 | 16.5 | 26 | 0.4 |
| 2000 | 2.9 | 3.9 | 103 | 19.1 | 31 | 0.44 |
64/110kV Lead Sheath Cable Parameters
| Nominal Area | Alu. sheath thickness (Minimum) | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | mm | kg/m | kg/m | μF/km |
| 150 | 2.1 | 2.9 | 66 | 7.1 | 8.4 | 0.13 |
| 185 | 2.1 | 3 | 68 | 7.6 | 9.3 | 0.14 |
| 240 | 1.9 | 2.7 | 60 | 6.5 | 8.5 | 0.19 |
| 300 | 1.9 | 2.8 | 62 | 7.2 | 9.2 | 0.2 |
| 400 | 2 | 3 | 66 | 8.1 | 10.4 | 0.22 |
| 500 | 2.1 | 3 | 69 | 8.9 | 11.9 | 0.24 |
| 630 | 2.2 | 3.1 | 73 | 9.9 | 13.6 | 0.26 |
| 800 | 2.3 | 3.3 | 78 | 11 | 15.9 | 0.29 |
| 1000 | 2.4 | 3.4 | 81 | 12.2 | 18.2 | 0.31 |
| 1200 | 2.5 | 3.5 | 89 | 14 | 21.3 | 0.36 |
| 1400 | 2.6 | 3.6 | 93 | 15.3 | 23.6 | 0.38 |
| 1600 | 2.7 | 3.8 | 97 | 16.5 | 26 | 0.4 |
| 2000 | 2.9 | 3.9 | 103 | 19.1 | 31 | 0.44 |
72/132kV Lead Sheath Cable Parameters
| Nominal Area | Alu. sheath thickness (Minimum) | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | mm | kg/m | kg/m | μF/km |
| 400 | 2.9 | 4 | 99 | 15.9 | 18.3 | 0.13 |
| 500 | 2.9 | 4.1 | 103 | 16.9 | 19.9 | 0.14 |
| 630 | 3 | 4.2 | 106 | 18.2 | 22 | 0.15 |
| 800 | 3.1 | 4.3 | 110 | 19.7 | 24.6 | 0.16 |
| 1000 | 3.3 | 4.4 | 115 | 21.6 | 27.6 | 0.17 |
| 1200 | 3.4 | 4.6 | 121 | 23.7 | 31 | 0.19 |
| 1400 | 3.5 | 4.7 | 125 | 25.4 | 33.7 | 0.2 |
| 1600 | 3.5 | 4.8 | 128 | 26.5 | 36 | 0.21 |
| 2000 | 3.7 | 5 | 135 | 29.7 | 41.6 | 0.23 |
127/220kV Lead Sheath Cable Parameters
| Nominal Area | Alu. sheath thickness (Minimum) | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | mm | kg/m | kg/m | μF/km |
| 400 | 2 | 3.8 | 108 | 8.5 | 10.8 | 0.13 |
| 500 | 2.1 | 3.9 | 112 | 9.3 | 12.2 | 0.14 |
| 630 | 2.1 | 4 | 116 | 10.1 | 13.8 | 0.15 |
| 800 | 2.2 | 4.1 | 121 | 11.2 | 16 | 0.16 |
| 1000 | 2.3 | 4.3 | 126 | 12.3 | 18.3 | 0.17 |
| 1200 | 2.3 | 4.4 | 132 | 13.7 | 20.9 | 0.19 |
| 1400 | 2.4 | 4.5 | 137 | 14.9 | 23.2 | 0.2 |
| 1600 | 2.5 | 4.6 | 141 | 16.1 | 25.5 | 0.21 |
| 2000 | 2.6 | 4.8 | 149 | 18.2 | 30.1 | 0.23 |
38/66kV Copper Wire Shield Cable Parameters
| Nominal Area | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | kg/m | kg/m | μF/km |
| 95 | 2.3 | 48 | 2.2 | 3 | 0.15 |
| 120 | 2.4 | 50 | 2.5 | 3.5 | 0.16 |
| 150 | 2.4 | 51 | 2.8 | 4.1 | 0.16 |
| 185 | 2.5 | 53 | 3.1 | 4.8 | 0.18 |
| 240 | 2.6 | 56 | 3.7 | 5.7 | 0.19 |
| 300 | 2.7 | 59 | 4.3 | 6.3 | 0.2 |
| 400 | 2.8 | 62 | 4.9 | 7.1 | 0.22 |
| 500 | 2.9 | 65 | 5.3 | 8.2 | 0.24 |
| 630 | 3 | 69 | 5.9 | 9.6 | 0.26 |
| 800 | 3.2 | 73 | 6.6 | 11.3 | 0.29 |
| 1000 | 3.3 | 77 | 7.3 | 13.2 | 0.31 |
| 1200 | 3.4 | 84 | 8.4 | 15.6 | 0.36 |
| 1400 | 3.5 | 89 | 9.2 | 17.4 | 0.38 |
| 1600 | 3.6 | 92 | 9.8 | 19.3 | 0.4 |
| 2000 | 3.8 | 99 | 11.3 | 23.2 | 0.44 |
64/110kV Copper Wire Shield Cable Parameters
| Nominal Area | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | kg/m | kg/m | μF/km |
| 150 | 2.8 | 63 | 3.6 | 4.9 | 0.13 |
| 185 | 2.9 | 64 | 4 | 5.6 | 0.14 |
| 240 | 2.9 | 67 | 4.6 | 6.6 | 0.15 |
| 300 | 3.1 | 70 | 5.3 | 7.2 | 0.16 |
| 400 | 3.2 | 73 | 5.9 | 8.1 | 0.17 |
| 500 | 3.3 | 76 | 6.4 | 9.3 | 0.18 |
| 630 | 3.4 | 80 | 7 | 10.7 | 0.2 |
| 800 | 3.5 | 84 | 7.7 | 12.5 | 0.22 |
| 1000 | 3.6 | 88 | 8.5 | 14.4 | 0.23 |
72/132kV Copper Wire Shield Cable Parameters
| Nominal Area | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | kg/m | kg/m | μF/km |
| 240 | 3.1 | 72 | 5 | 7 | 0.14 |
| 300 | 3.2 | 74 | 5.7 | 7.6 | 0.15 |
| 400 | 3.3 | 78 | 6.3 | 8.6 | 0.16 |
| 500 | 3.4 | 81 | 6.8 | 9.7 | 0.17 |
| 630 | 3.5 | 85 | 7.5 | 11.2 | 0.18 |
| 800 | 3.7 | 89 | 8.3 | 13 | 0.2 |
| 1000 | 3.8 | 93 | 9.1 | 15 | 0.22 |
| 1200 | 3.9 | 100 | 10.3 | 17.5 | 0.24 |
127/220kV Copper Wire Shield Cable Parameters
| Nominal Area | Outer sheath thickness (Nominal) | Overall Diameter (Approx.) | App. Weight (Aluminium) | App. Weight (Copper) | Approx. Capacitance |
| mm2 | mm | mm | kg/m | kg/m | μF/km |
| 400 | 3.9 | 94 | 8.7 | 11 | 0.13 |
| 500 | 3.9 | 97 | 9.3 | 12.2 | 0.14 |
| 630 | 4.1 | 101 | 10 | 13.8 | 0.15 |
| 800 | 4.2 | 105 | 10.9 | 15.7 | 0.16 |
| 1000 | 4.3 | 109 | 11.8 | 17.7 | 0.17 |
| 1200 | 4.4 | 115 | 13 | 20.3 | 0.19 |
| 1400 | 4.5 | 120 | 13.9 | 22.2 | 0.2 |
| 1600 | 4.6 | 123 | 14.8 | 24.2 | 0.21 |
| 2000 | 4.8 | 130 | 16.5 | 28.4 | 0.23 |
