6/35kV Medium Voltage Power Distribution Series

This series is engineered for primary electrical grids, heavy industrial plants, and large-scale renewable energy (wind/solar) integration at 6/35kV.

Conductor, Insulation, and Screening Combinations

♦ Conductors: High-purity electrolytic copper (CU) or electrical-grade aluminum (AL).

♦ Insulation & Sheath: Formulated with 90°C high-thermal XLPE insulation as the standard dielectric layer. The external protective jacket can be selected independently between premium PVC and PE to fulfill specific waterproofing and burial depth requirements.

♦ Screening Options: Precision-formed with Copper Tape Screen (CTS), Copper Wire Screen (CWS), or dual combinations (CTS&CWS) to ensure optimal electromagnetic shielding and grounding integrity.

♦ Specific Selection: Selection depends on project ampacity, grid load, and environment. For example: continuous high-thermal operations, stable electro-static field distribution, or sub-grade moisture barriers — all achievable through material combinations.

Mechanical Protection and Optional Upgrades

Standard configurations include non-armoured and heavy armoured designs. Optional add-ons:

♦ LSZH compounds for transit tunnels or mass-populated public grids

♦ Mica-tape fire-resistant (FR) barriers for critical backup emergency circuits

♦ Longitudinal water-blocking swelling tapes to prevent water-treeing inside insulation

♦ Anti-termite / anti-rodent chemical sheaths for harsh subterranean protection

Compliance

All cables comply with IEC 60502-2. Third-party test reports available upon request.

Unarmoured Cable

As a critical infrastructure segment of our Medium Voltage Cable lineup, this Unarmoured Cable range is engineered for fixed primary distribution networks isolated within controlled utility stations, industrial cable galleries, and indoor housing racks. This streamlined series eliminates heavy metal shields to focus purely on spatial density, narrow bending dynamics, and fast routing inside protected pathways.

·Standards: IEC 60502-2

·Cores: 1 Core, 3 Cores

·Conductors & Screening: High-purity Copper or Aluminum conductors wrapped with specialized CTS or CWS screening for electric field equalization.

·Material Matrix: Built with standard 90°C high-ampacity XLPE insulation. External protective jackets can be selected independently between PE and PVC to fit localized thermal layouts.

·Optional Upgrade: Standard outers feature industrial PVC or PE. Halogen-free, low-smoke (LSZH) compound upgrades are accessible on demand to meet strict emission protocols in tunnels and indoor vaults.

Key Advantages

·Congested Route Flexibility: The unarmoured execution minimizes the total cable weight and diameter, allowing fast wire-pulling through continuous bends and heavily cutting engineering manpower expenses.

·Partial Discharge Mitigation: Precision-lapped copper screens provide a uniform electro-static shield around the XLPE cores, effectively grounding charging currents and stopping local insulation breakdown.

·Continuous Batch Tracking: Backed by our native production capacity, we offer flexible contract runs for major utility projects. Every shipment features distinct meter markings to eradicate cutting scrap.

Application Guideline

·Choose Unarmoured: For clean, protected grid locations with zero risk of backfill pressure or impact (e.g., secondary substations, indoor switchgear rooms, or overhead trays).

·Choose Armoured: For applications requiring direct underground trenching, heavy crushing environments, or soil-pest infestations, please refer to our STA / SWA / AWA series.