- I. Basic Definition and Model Designation
- Model Breakdown: YJLV22 26/35kV
- 1. YJ: Cross-linked polyethylene (XLPE) insulation
- 2. L: Aluminum conductor
- 3. V: PVC polyvinyl chloride inner bedding layer
- 4. First 2: Double-layer steel tape armor (radial compression resistance, mechanical damage protection)
- 5. Second 2: Black PVC polyvinyl chloride outer sheath
- 6. 26/35kV: Rated voltage U₀/U=26/35kV, system nominal line voltage 35kV, maximum operating voltage 40.5kV, high-voltage transmission cable
- II. Core Technical Parameters and Operating Characteristics
- 1. Applicable standard: GB/T 12706.3-2020
- 2. Long-term permissible conductor operating temperature: 90℃
- 3. 5s short-time short-circuit maximum withstand temperature: 250℃
- 4. Minimum ambient temperature for installation: ≥0℃; cable preheating required for installation in low-temperature environments
- 5. Minimum bending radius: ≥20 times the cable outer diameter (35kV high-voltage insulation layer is thick; small-radius bending is strictly prohibited)
- 6. Voltage withstand test: power-frequency withstand voltage 91kV/5min, lightning impulse withstand voltage 185kV
- 7. Product characteristics:
- Aluminum conductor weight is far lower than that of copper-core YJV22, significantly reducing transportation and installation costs;
- Steel tape armor provides only radial compression resistance and cannot withstand axial tensile force;
- Moisture-proof and soil-corrosion-resistant, suitable for outdoor direct burial.
- 8. Installation restrictions: Not suitable for vertical shafts in high-rise buildings, large elevation differences in mountainous terrain, or underwater installation; YJLV32 fine steel wire armor model should be selected instead.
- III. Main Application Scenarios
- Suitable for fixed installation of AC 50Hz, 35kV high-voltage power transmission and distribution lines:
- 1. Outdoor direct-buried main lines of urban 35kV power grids, township high-voltage distribution lines
- 2. Direct-buried transmission cables outside photovoltaic and wind power booster stations
- 3. Underground high-voltage power supply pipelines in large industrial and mining plants and metallurgical parks
- 4. Road green belts, under roadbeds, and open-air underground passages without cable tray protection
- 5. Long-distance power transmission in remote areas (aluminum core offers outstanding cost-effectiveness)
- Prohibited scenarios: Vertical installation in cable shafts, underwater, steep slopes with large elevation differences (tensile load conditions), strongly chemically corrosive soil (anti-corrosion special sheaths required)
- IV. Standard Specifications
- Mainstream core count: 3 cores (general-purpose for three-phase industrial/power grid applications); single-core construction available for high-capacity transmission
- Common aluminum conductor cross-sections (mm²): 50, 70, 95, 120, 150, 185, 240, 300, 400, 500, 630
1/1
ZC-YJLV22 26/35kV
Negotiable
China
No. 777, Kangzhuang East Road, Chemical Industry Park, Midong District, Urumqi City, Xinjiang
13999856370
+77773204009
lijiewei@huyangcable.cn
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