Single Core Underground High Voltage Cable 64/110kV with Copper Conductor 630-1600mm² Cross-Section for Power Transmission

Price Negotiable

Price: Negotiable

MOQ: Negotiable

Delivery Time: 7-30 days based on different qty

Brand: Aluminum High Voltage Cable

Product Description

Product Overview

Single core underground high voltage electrical cable featuring copper or aluminum conductor construction with XLPE insulation, designed for reliable power transmission in demanding environments.

Applications

Long-distance power transmission systems
Grid interconnections and network expansions
Renewable energy integration projects
Industrial power supply installations
Urban underground distribution networks
Submarine cable applications
Railway electrification systems

Single core high voltage cable construction diagram

High voltage cable cross-section view showing layers

Underground high voltage cable installation example

Cable Construction

Conductor: Class 2 copper compacted or segment strand Milliken
Conductor Screen: Extruded semi-conductive XLPE
Insulation: Cross-Linked Polyethylene (XLPE)
Insulation Screen: Extruded semi-conductive XLPE
Separator: Water swellable semi-conductive tape
Screen: Copper wire screen with counter helix copper tape
Armor: Aluminum wires, stainless steel wires, or polymeric
Sheath: High Density Polyethylene (HDPE)

Technical Specifications

Electrical Ratings

Voltage Rating: 64/110kV (Um: 123kV)
Highest Network Voltage: 123kV
Operating Temperature: -30°C to +90°C
Short Circuit Temperature: +250°C
Overload Temperature: +130°C

Parameter Category	Parameter Item	Parameter Values
Configuration Parameters	Electric Conductor	Material: copper core (cross-section range: 630~1600mm²)
	External Diameter of Conductor	30.0~56.5mm (increases with cross-section)
	Insulating Course	Material: XLPE, thickness: 16.5±0.5mm
	Conductor Shielding Layer	Thickness: 1.2mm (semi-conductive material)
	Insulation Screen	Thickness: 1.0mm (semi-conductive material)
	Metallic Sheath	Wrinkle aluminum sheath (2.0±0.2mm) or double galvanized steel strip (0.5~0.8mm)
	Oversheath	Material: flame retardant PVC or PE, thickness: 4.5±0.2mm
Electrical Parameters	20℃ Conductor DC Resistance	0.0754~0.009 Ω/km (decreases with larger cross-section)
	90℃ Conductor AC Resistance	0.097~0.0142 Ω/km
	Capacity Value	134-282 pF/m (increases with cross-section)
	Power Frequency Pressure Test	64/110kV (factory test)
Electrical Parameters	Local Discharge Performance	At 5pC (1.5U₀ under-voltage)
Mechanical & Laying Parameters	Minimum Bending Radius	12 x cable outer diameter (armor layer requirement)
	Allow Working Temperature	Long-term: 90℃, short circuit (5 seconds): 250℃
	Laying Ambient Temperature	≥0℃
	Vehicle Flow Reference	Single return air flow: 630mm²: 1010A; 1600mm²: 1690A (40℃ ambient)
Mechanical & Laying Parameters	Load Flow Rate of Directly Buried Laying	630mm²: ~800A; 1600mm²: ~1300A (1m depth, 35℃ ground)