35kV Cable

35kV Cable

  • - Conductor:High-purity annealed copper or aluminum conductor, available in various cross-sections (50mm² to 800mm²).
  • - Insulation:XLPE (Cross-linked Polyethylene) or HEPR (Hard Ethylene Propylene Rubber) insulation, offering excellent thermal stability, high dielectric strength, and long-term aging resistance for 35kV high-voltage systems.
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Product Introduction

RS 35kV medium voltage power cable is designed for reliable and safe power transmission in high-load power grids, industrial facilities, infrastructure projects, and renewable energy stations. Engineered in full compliance with IEC 60502 and GB/T 12706 standards, our cable features high-purity copper or aluminum conductors, XLPE insulation with triple-layer semi-conductive screens, and optional steel tape or steel wire armoring to deliver excellent electrical performance, thermal stability, and mechanical protection.
We provide full customization of conductor cross-section, sheath material, armoring type and delivery length, backed by our professional manufacturing capability and competitive factory price.

35kV Cable – Key Specifications & Construction

– Conductor:High-purity annealed copper or aluminum conductor, available in various cross-sections (50mm² to 800mm²).
– Insulation:XLPE (Cross-linked Polyethylene) or HEPR (Hard Ethylene Propylene Rubber) insulation, offering excellent thermal stability, high dielectric strength, and long-term aging resistance for 35kV high-voltage systems.
– Screen/Sheath:Triple-layer semi-conductive and metallic copper screen to precisely control electric fields and eliminate partial discharges; outer sheath (PVC, PE, or halogen-free LSZH compound) provides robust protection against oils, chemicals, UV radiation, and mechanical damage.
– Armoring:Optional galvanized steel wire armor (SWA) or steel tape armor (STA) for enhanced mechanical protection against crushing, impact, rodent damage, and tensile stress in heavy-duty installation scenarios.
– Voltage Rating:35kV (26/35kV, 21/35kV, 18/30kV(36kV))
– Standards Compliance:IEC 60502-2, IEC 60228, IEC/EN 60332-1-2, GB/T 12706, GB/T 11017

Technical Specifications of RS 35kV Cable

Item Parameter Details
Conductor Material High-purity annealed Copper (Cu) / Aluminum (Al)
Standard IEC 60228 (Class 2/5)
Cross-section 50 mm² ~ 800 mm² (Customizable)
Insulation Material XLPE (Cross-linked PE) / HEPR (Hard EPR)
Thickness ≥ 10.0 mm (per IEC 60502-2 for 26/35kV)
Temp. Rating 90°C (continuous); 130°C (short-term)
Dielectric Strength ≥ 30 kV/mm (DC) | ≥ 20 kV/mm (AC)
Volume Resistivity ≥ 1×10¹⁴ Ω·m (20°C)
Screen Inner Screen Semi-conductive XLPE compound (thickness ≥ 1.5 mm)
Metallic Screen Copper tape (≥ 0.20 mm) / Copper strands (Mandatory)
Outer Screen Semi-conductive PE sheath (thickness ≥ 1.5 mm)
Grounding Resistance ≤ 0.3 Ω/km (20°C)
Armoring Type SWA (Steel Wire) / STA (Steel Tape) (Optional)
Outer Sheath Material PVC / PE / LSZH (Halogen-free)
Performance Bending Radius ≥ 20D (Armored) / ≥ 15D (Unarmored)
Standards Compliance IEC 60502-2, GB/T 12706, GB/T 11017, CE, ISO 9001

Applications of RS 35kV Cable

RS 35kV cable supports direct burial, duct, tunnel and overhead installation. Strict partial discharge testing and quality inspection ensure stable operation under high voltage, heavy load and harsh environments.
  • Industrial Power Distribution: Reliable power supply for heavy machinery, manufacturing lines, processing units, and factory automation systems, ensuring stable operation in demanding industrial environments.
  • Mining Operations: Robust armored construction withstands harsh terrain, vibration, and potential mechanical damage, making it ideal for surface and underground mining power networks.
  • Infrastructure & Public Utilities: Used in tunnels, airports, water treatment plants, transportation hubs, and urban grid upgrades to power pumps, lighting, and critical public services.
  • Renewable Energy Projects: Connects wind turbine generators, solar farm inverters, and energy storage systems to the main power grid, supporting large-scale clean energy infrastructure worldwide.
  • Commercial & High-Rise Buildings: Serves as the main distribution feeder for large commercial complexes, hospitals, data centers, and high-rise office buildings.
  • Utility & Power Grids: Primary and secondary power distribution for municipal and industrial utility grids, including overhead, direct burial, and duct installations.
  • Oil & Gas Projects: Reliable power transmission for offshore platforms, onshore processing facilities, and remote oilfield operations, with resistance to chemical corrosion and extreme weather.
  • Railway & Transportation: Supplies stable power to high-speed rail, subway systems, and airport infrastructure, ensuring uninterrupted operation of transportation networks.

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