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 Screen: Copper wire
Products Construction
• Conductor: Stranded Compacted Aluminum
• Conductor Shield : Semi-conductor XLPE Compound
• Insulation: XLPE Insulation
• Insulation Shield: Semi-conductor XLPE Compound
• Metallic Screen: Copper Wire
• Outer sheath : PVC or PE
Applicable Standards
Optional
Technical Parameters
YJLV / YJLY 48/66kV Aluminum Core XLPE Insulated Copper-Wire Screened Power Cable
| Nominal cross section (mm²) | Conductor form | Diameter (mm) | Nominal insulation thickness (mm) | Insulation outer diameter (mm) | Copper-wire screen section (mm) | Nominal sheath thickness (mm) | Nominal cable outer diameter (mm) | Approx. mass (kg/km) – YJLV | Approx. mass (kg/km) – YJLY | DC resistance at 20℃ (Ω/km) | Capacitance at 20℃ (μF/km) | |
| 1×185 | Circular compact | 16.2 | 16.0 | 51.0 | 50 | 4.0 | 66.2 | 4180 | 3782 | 0.1640 | 0.124 | |
| 1×240 | Circular compact | 18.4 | 15.0 | 51.2 | 50 | 4.0 | 66.4 | 4284 | 3884 | 0.1250 | 0.141 | |
| 1×300 | Circular compact | 20.6 | 15.0 | 53.4 | 50 | 4.0 | 68.6 | 4615 | 4201 | 0.1000 | 0.151 | |
| 1×400 | Circular compact | 23.4 | 15.0 | 56.2 | 50 | 4.0 | 71.4 | 5050 | 4619 | 0.0778 | 0.167 | |
| 1×500 | Circular compact | 26.6 | 14.0 | 57.4 | 50 | 4.0 | 72.6 | 5357 | 4918 | 0.0605 | 0.194 | |
| 1×630 | Circular compact | 30.0 | 14.0 | 60.8 | 50 | 4.0 | 76.0 | 5970 | 5510 | 0.0469 | 0.210 | |
| 1×800 | Circular compact | 34.0 | 14.0 | 64.8 | 50 | 4.0 | 80.0 | 6727 | 6240 | 0.0367 | 0.222 | |
| 1×800 | Segmented | 35.0 | 14.0 | 67.1 | 50 | 4.0 | 82.3 | 6900 | 6498 | 0.0367 | 0.231 | |
| 1×1000 | Segmented | 39.0 | 14.0 | 71.1 | 50 | 4.5 | 87.3 | 8051 | 7454 | 0.0291 | 0.256 | |
| 1×1200 | Segmented | 42.6 | 14.0 | 74.7 | 50 | 4.5 | 90.9 | 9041 | 8345 | 0.0247 | 0.271 | |
| 1×1400 | Segmented | 45.2 | 14.0 | 77.3 | 50 | 4.5 | 93.5 | 9787 | 9071 | 0.0212 | 0.286 | |
| 1×1600 | Segmented | 48.5 | 14.0 | 80.6 | 50 | 4.5 | 96.8 | 10562 | 9819 | 0.0186 | 0.299 | |
| 1×1800 | Segmented | 50.8 | 14.0 | 82.9 | 50 | 4.5 | 99.1 | 11106 | 10425 | 0.0165 | 0.312 | |
| 1×2000 | Segmented | 54.0 | 14.0 | 86.1 | 50 | 4.5 | 102.3 | 12132 | 11345 | 0.0145 | 0.327 | |
| 1×2200 | Segmented | 57.4 | 14.0 | 89.5 | 50 | 4.5 | 105.7 | 12942 | 12128 | 0.0135 | 0.345 | |
| 1×2500 | Segmented | 61.2 | 14.0 | 93.3 | 50 | 4.5 | 109.5 | 14054 | 13209 | 0.0127 | 0.362 | |
FAQ
High voltage is defined as any voltage over 1000 volts. Those of 2 to 33 kV are usually called medium voltage cables, those over 50 kV high voltage cables.
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.
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.
HVDC is used for long submarine cables where AC cannot be used because of cable capacitance. In these cases special high-voltage cables are used.
Key Factors to Consider While Selecting High-voltage Cables
Understand Your Voltage Requirements: The first step in selecting the right high-voltage cable is to determine your voltage range. …
Consider the Environment: The environment where the cable will be installed plays a critical role in the cable selection process.
HV cables feature a wide range of conductor sizes, measured in AWG (American Wire Guage) and, in some cases, square millimeters (mm²). The conductor size impacts the capacity and diameter of the cable. Most gauge sizes range between 2 AWG and 28 AWG. Smaller diameters are ideal for tighter tolerances.
High-voltage (HV) cable, is a highly insulated, heavy-duty cable necessary for high-voltage power transmission. It is used in instruments, ignition systems, and alternating current (AC) and direct current (DC) power transmission in many environments.
