66/110kV High Voltage Power Distribution Series

This series is engineered for state-level electrical grids, bulk power transmission lines, and primary regional substations operating at high voltage ratings from 66kV up to 110kV.

Conductor, Insulation, and Shielding Combinations

♦ Conductors: Premium large-cross-section copper (CU) or aluminum (AL) conductors designed for maximum ampacity.

♦ Insulation & Sheath: Utilizes ultra-clean XLPE insulation as the standard premium dielectric layer. The external jacket can be selected independently between weather-resistant PVC and PE depending on project environmental criteria.

♦ Waterproof Barriers: Built with heavy-duty radial and longitudinal waterproof systems featuring specialized Corrugated Aluminum Sheaths, combined with semi-conductive screens and water-blocking swelling tapes to prevent electro-treeing breakdown.

♦ Specific Selection: Specific selection depends on project grid load, installation depth, and ambient environment. For example: maximum continuous transmission capacity, uniform electric field distribution, or permanent lightweight moisture sealing — all achievable through material combinations.

Mechanical Protection and Optional Upgrades

Standard configurations include non-armoured or robust corrugated aluminum protective profiles. Optional add-ons:

♦ Tailored semi-conductive outer layers to simplify routine post-installation sheath voltage testing

♦ Anti-termite / anti-rodent chemical sheaths for direct burial or rugged underground layouts

Compliance

All cables comply with IEC 60840. Third-party test reports available upon request.

64/110kV Cable

The 64/110kV Cable collection, serving as the heavy-duty pinnacle within our High Voltage Cable network, stands as the definitive standard for metropolitan backbone grids, power plant main transmission bays, and national energy interconnection links. Engineered to withstand extreme grid loads, this flagship macro-grid series guarantees ultimate electrical stability under intense electrostatic stress over decades of service.

·Standards: IEC 60840

·Cores: 1 Core Only (Note: Single-core design allows for massive conductor dimensions and isolates thermal loop stresses)

·Conductors & Waterproofing: Heavy-gauge Copper or Aluminum conductors paired with premium Corrugated Aluminum Sheaths to withstand rugged geological pressure and provide permanent moisture sealing.

·Material Matrix: Featuring ultra-pure 110kV-grade XLPE insulation, the external protective sheathing is interchangeable between high-density PE and industrial PVC formulas to match specific environmental layout criteria.

Key Advantages

·Flagship Grid Load Performance: Precision-extruded semi-conductive screens and high-purity insulation handle severe electro-static electric field stress, delivering the maximum continuous grid capacity required by main metropolitan networks.

·Ultimate Subterranean Defense: The heavy, seamlessly formed corrugated aluminum sheath serves as an impenetrable armor shield against massive vertical earth loads, jagged rock backfills, and destructive underground biological hazards.

·Low-Resistance Fault Return Path: The robust continuous aluminum jacket functions as an exceptional, high-capacity fault-current return path, massively upgrading power station and substation system grounding safety during high-amperage short circuits.

Application Guideline

·Choose 110kV: Mandated for major city electricity grids, power station outputs to national grids, overhead-to-underground transition bays, and large-scale regional substations with maximum mechanical and electrical stress.