33kV Cable

33kV Cable

  • - Conductor: High-purity annealed Copper (CU) or Aluminum (AL) circular compacted conductors, available in cross-sections from 50mm² to 630mm² (Single Core) and 50mm² to 300mm² (Three Core).
  • - Insulation: High-grade XLPE (Cross-linked Polyethylene) with a nominal thickness of 8.0mm for superior thermal and electrical performance under high stress.
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Product Introduction

– Conductor: High-purity annealed Copper (CU) or Aluminum (AL) circular compacted conductors, available in cross-sections from 50mm² to 630mm² (Single Core) and 50mm² to 300mm² (Three Core).
– Insulation: High-grade XLPE (Cross-linked Polyethylene) with a nominal thickness of 8.0mm for superior thermal and electrical performance under high stress.
– Screening: Extruded semi-conductive tape over the conductor and insulation, plus a Copper Tape (CuT) screen to control electric fields and prevent partial discharges.
– Armour: Aluminum Wire Armour (AWA) for single-core cables and Steel Wire Armour (SWA) for three-core cables to withstand harsh mechanical stress and direct burial.
– Outer Sheath: Durable PVC compound providing excellent protection against chemicals, sunlight, and mechanical damage.
– Voltage Rating: 19/33kV (Highest System Voltage: 36kV).
– Standards Compliance: IEC 60502-2, IEC 60228, IEC/EN 60332-1-2, GB/T 12706.

Technical Specifications of  33kV Cable

Item Parameter Details
Conductor Material High-purity Copper (Cu) / Aluminum (Al)
Type Circular compacted
Cross-section Single Core: 50 mm² ~ 630 mm²
Three Core: 50 mm² ~ 300 mm²
Insulation Material XLPE (Cross-linked Polyethylene)
Thickness 8.0 mm (Nominal)
Screen Semi-Conductive Screen SC Tape
Metallic Screen Copper Tape (CuT) (Thickness: 0.075 mm)
Armoring Type AWA (Aluminium Wire) for Single Core Cables

SWA (Steel Wire) for Three Core Cables

Wire Diameter 2.0 mm ~ 3.15 mm (depending on cable size)
Sheath Inner Bedding Extruded Bedding (Thickness: 1.2 mm to 2.3 mm)
Outer Sheath Material PVC
Performance Voltage Rating 19/33kV (Highest System Voltage: 36kV)
Max. Short Circuit Temp. 250°C
Standards Compliance IEC 60502-2

Applications of  33kV Medium Voltage Cable

Operating at a highest system voltage of 36kV, the  33kV medium voltage underground cable series is engineered for primary power sub-transmission and massive-scale distribution. The robust XLPE insulation and heavy-duty armoring make it the definitive choice for the following high-capacity applications:

  • Primary Utility Networks & Substations: Acts as the critical link between main high-voltage transmission grids and local city substations. These cables form the heavy-duty underground power infrastructure that utilities rely on for regional power routing.
  • Renewable Energy Integration: The industry standard for medium-voltage collector networks. Used extensively to connect individual wind turbines (inter-array networks) or solar farm step-up transformers to the main electrical grid.
  • Heavy Mining & Industrial Plants: Ideal for deep underground mining operations, steel mills, and petrochemical plants where massive power loads must be transported over long distances with minimal voltage drop. The rugged steel and aluminum wire armoring provides essential protection in these harsh environments.
  • Railway & Transit Electrification: Serves as the primary incoming power feeder for railway traction substations, massive airport expansions, and heavy transit hubs requiring uninterrupted, high-capacity power.
  • Hyperscale Data Centers: Used as the primary high-voltage incoming line for massive data centers and mega-factories that require a dedicated, ultra-reliable power supply directly from the utility provider.

Why Choose  for Your 11kV XLPE Cable Needs?

When sourcing an 33kV XLPE cable, you need a proven manufacturing partner. Here is why global engineering teams trust  for their critical power line projects:

  • Uncompromising Quality: Our cables strictly meet IEC 60502-2 standards and are backed by ISO 9001, ISO 14001, and BASEC certifications.
  • Tailored Engineering: We offer dedicated technical support to help you select or custom-design the exact electrical cable to fit your unique environmental and load requirements.
  • Direct-from-Factory Value: Operating our own modern facilities in Zhengzhou allows us to eliminate third-party markups, guaranteeing a highly competitive 11kv cable price.
  • Proven Logistics: With experience exporting to over 60 countries, we ensure your cables are securely wound on heavy-duty drums and delivered safely anywhere in the world.

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