Application
High voltage power cable is applicable to being fixedly laid on the transmission and distribution line of rated voltages from 66kV up to 500kV with the use for power transmission and distribution. Laying site for instance in tunnel, pipeline and soil to transport electrical energy. Allowing for high fall or vertical installation
Characteristics
- Voltage Rating: 48/66kV
- Max. conductor temperature in service 90 °C
- Max. Short time overload temperature(2 h)130 °C
- Maximum conductor short time temperature 250 °C
- Bending factor when laying
- 20 x D single core cable
- Metallic Sheath: Metal-PE Composite
Products Construction
• Conductor: Stranded Compacted Copper Class 2
• Conductor Shield : Semi-conductor XLPE Compound
• Insulation: XLPE Insulation
• Insulation Shield: Semi-conductor XLPE Compound
• Water blocking layer: Semi conductor Water blocking tape
• Metallic Sheath: Metal-PE Composite
• Outer sheath : PE
Applicable Standards
Optional
Technical Parameters
YJA03、YJA03-Z 48/66kV Copper Core XLPE Insulated Metal-PE Composite Sheath Power Cable
| Nominal Cross-section (mm²) | Conductor Type | Conductor Dia. (mm) | Nominal Insulation Thickness (mm) | Insulation Outer Dia. (mm) | Copper Screen Cross-section (mm²) | Sheath Thickness (mm) | Overall Outer Dia. (mm) | Approx. Weight (kg/km) | DC Resistance @20℃ (Ω/km) | Capacitance @20℃(μF/km) |
| 1×185 | Compact Circular | 16.2 | 16.0 | 51.0 | 50 | 4.0 | 67.9 | 4676 | 0.0991 | 0.124 |
| 1×240 | Compact Circular | 18.4 | 15.0 | 51.2 | 50 | 4.0 | 68.1 | 5094 | 0.0754 | 0.141 |
| 1×300 | Compact Circular | 20.6 | 15.0 | 53.4 | 50 | 4.0 | 70.3 | 5801 | 0.0601 | 0.151 |
| 1×400 | Compact Circular | 23.4 | 15.0 | 56.2 | 50 | 4.0 | 73.1 | 6746 | 0.0470 | 0.167 |
| 1×500 | Compact Circular | 26.6 | 14.0 | 57.4 | 50 | 4.0 | 74.3 | 7716 | 0.0366 | 0.194 |
| 1×630 | Compact Circular | 30.0 | 14.0 | 60.8 | 50 | 4.0 | 77.7 | 9165 | 0.0283 | 0.210 |
| 1×800 | Compact Circular | 34.0 | 14.0 | 64.8 | 50 | 4.0 | 81.7 | 10983 | 0.0221 | 0.222 |
| 1×900 | Segmented | 35.0 | 14.0 | 67.1 | 50 | 4.0 | 84.0 | 11247 | 0.0221 | 0.231 |
| 1×1000 | Segmented | 39.0 | 14.0 | 71.1 | 50 | 4.5 | 89.0 | 13479 | 0.0176 | 0.256 |
| 1×1200 | Segmented | 42.6 | 14.0 | 74.7 | 50 | 4.5 | 92.6 | 15526 | 0.0151 | 0.271 |
| 1×1400 | Segmented | 45.2 | 14.0 | 77.3 | 50 | 4.5 | 96.2 | 17496 | 0.0129 | 0.286 |
| 1×1600 | Segmented | 48.5 | 14.0 | 80.6 | 50 | 4.5 | 98.5 | 19429 | 0.0113 | 0.299 |
| 1×1800 | Segmented | 50.8 | 14.0 | 82.9 | 50 | 4.5 | 100.8 | 21400 | 0.0101 | 0.312 |
| 1×2000 | Segmented | 54.0 | 14.0 | 86.1 | 50 | 4.5 | 104.0 | 23569 | 0.0090 | 0.327 |
| 1×2200 | Segmented | 57.4 | 14.0 | 89.5 | 50 | 4.5 | 107.4 | 25595 | 0.0083 | 0.345 |
| 1×2500 | Segmented | 61.2 | 14.0 | 93.3 | 50 | 4.5 | 111.2 | 28546 | 0.0072 | 0.362 |
FAQ
A high-voltage wire (or cable) is an electrical conductor rated to carry high potential energy, typically above 1,000 volts (though often running from 35 kV to over 500 kV). These heavy-duty cables are designed to efficiently transmit massive amounts of electricity from power plants to municipal grids while minimizing energy loss.
Depending on application needs, high voltage cable typesinclude PVC (Polyvinyl Chloride) and XLPE (Cross-Linked Polyethylene) insulated cables. Among them, XLPE power cables are the most widely used due to their superior thermal and dielectric properties, making them suitable for demanding environments.
A high-voltage cable (HV cable), sometimes called a high-tension cable (HT cable), is a cable used for electric power transmission at high voltage. A cable includes a conductor and insulation. Cables are considered to be fully insulated.
Voltage Levels – HV systems operate above 1,000 volts, while LV systems stay below. Capacity – HV can handle significantly higher loads, ideal for energy-intensive operations. Infrastructure – HV requires more robust equipment, including larger switchgear and more complex cabling, than LV systems.
The most common materials used in HV cables are copper and aluminum. Most applications favor a copper conductor because stranded copper wire is very flexible and an excellent conductor. Aluminum is lighter weight and less costly, but it has a slightly lower conductivity.
Neutral lines are commonly used in low-voltage distribution systems, but not in high-voltage transmission. Here’s why: In electrical systems, the term neutral typically refers to a point in the circuit that is at zero potential relative to the ground. The neutral wire serves as a return path for current.
