High Voltage Cable 12/20kV 3-Core Cable YJV22 CU/XLPE/STA/PVC Customized For Mining & Grids

 Introduction

This 12/20kV three‑core high‑voltage cable is standard YJV22 type, constructed with copper conductor, XLPE insulation, steel tape armor and PVC outer sheath. It is specially developed for mining power supply, urban power grid networking, industrial heavy‑load power distribution and underground buried projects. Built with strict high‑voltage electrical safety standards, it balances pressure resistance, impact resistance and stable power transmission performance, adapting to damp mining tunnels, underground pipe galleries and long‑distance power grid lines with complex geological conditions.

Product Structure

• Conductor (CU): Compact stranded pure copper conductor, low DC resistance, high conductivity, stable ampacity under long‑term heavy‑load operation, effectively reducing power transmission loss.
• Insulation (XLPE): Cross‑linked polyethylene high‑voltage insulation layer, professional for 12/20kV voltage grade, with excellent voltage‑withstanding, heat‑resistant and anti‑aging properties, preventing insulation breakdown under long‑time high‑voltage working conditions.
• Steel Tape Armor (STA): Double‑layer steel tape armored structure, strong anti‑extrusion, anti‑impact and anti‑external‑force‑damage ability, protecting inner core from rock pressure, mechanical collision and soil friction in mining and underground laying environments.
• Outer Sheath (PVC): Thickened PVC protective sheath, waterproof, moisture‑proof, acid‑alkali corrosion‑resistant and wear‑resistant, isolating damp underground environment and chemical erosion, extending overall service life.
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Core Product Advantages

① Professional 12/20kV High‑voltage Safety Performance

② Mining‑Grade Anti‑damage & Environmental Adaptability

③ Customizable for Different Engineering Needs

④ Long Service Life & Low Maintenance Cost

Main Technical Parameters

• Voltage Grade: 12/20kV
• Core Structure: 3‑core
• Conductor: Compact stranded pure copper (CU)
• Insulation Material: Cross‑linked Polyethylene (XLPE)
• Armored Type: Steel Tape Armored (STA)
• Outer Sheath Material: Polyvinyl Chloride (PVC)
• Operating Temperature: Max continuous working temperature 90℃
• Installation Way: Underground direct burial, mine tunnel laying, cable gallery laying

Application Scope