Y/G Insulated Copper Clad Steel Strand Conductor | High-Performance Grounding Wire

In critical grounding and earthing applications where safety, conductivity, and long-term durability are paramount, the Y/G Insulated Copper Clad Steel Strand Conductor (also known as yellow-green PVC insulated CCS stranded grounding wire) stands out as a high-performance, cost-effective solution. This advanced composite conductor combines the superior electrical conductivity and corrosion resistance of copper with the high tensile strength and rigidity of a steel core, all protected by a durable yellow-green PVC insulation layer for easy identification and enhanced mechanical protection.

Widely trusted in lightning protection systems, railway electrification, petrochemical plants, and power distribution networks, this Y/G insulated CCS strand conductor delivers reliable performance in demanding environments while significantly reducing material costs compared to pure copper grounding conductors.

1. Primary Applications

The Y/G Insulated Copper Clad Steel Strand Conductor is specifically engineered for high-reliability grounding applications, including:

• Lightning protection grounding for HF coaxial cables, communication towers, and broadcast systems
• Earthing systems in electrical railways, light metro, and high-speed rail infrastructure
• Electrostatic grounding and protection earthing in industrial facilities
• Ground lines for power transmission, distribution, and petrochemical plants
• Safety grounding in substations, data centers, and renewable energy installations

Its combination of high mechanical strength and stable electrical performance makes it ideal for both above-ground and buried installations where vibration, corrosion, and mechanical stress are common challenges.

2. Product Structure & Construction

The conductor is manufactured through a precise multi-step process:

• Stranded Copper Clad Steel Core: Multiple high-quality copper-clad steel wires are concentrically stranded to form a flexible yet high-strength conductor.
• Yellow-Green PVC Insulation: A uniform layer of high-grade PVC compound is extruded over the stranded core, providing excellent insulation, weather resistance, and immediate visual identification as a grounding conductor (standard Y/G color coding).
• Metallurgical Bonding: The copper cladding is permanently bonded to the steel core, ensuring consistent conductivity and preventing delamination under stress.

This construction delivers the perfect balance of conductivity (typically 30–40% IACS), exceptional tensile strength, and long-term corrosion protection.

3. Standards & Quality Compliance

All Y/G Insulated Copper Clad Steel Strand Conductors are produced in strict accordance with Chinese national standards:

• GB2951-1997 (Test methods for PVC insulated cables and wires)
• GB5023-1997 (Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V)

4. Technical Specifications & Parameters

The following table lists detailed electrical and physical properties for standard sizes (custom sectional areas and stranding configurations available upon request):

5. Key Advantages & Benefits

• Excellent Conductivity with High Strength: Copper cladding ensures low DC resistance while the steel core provides superior tensile strength and vibration resistance.
• Superior Corrosion Protection: The thick yellow-green PVC insulation offers outstanding resistance to moisture, chemicals, UV, and mechanical abrasion.
• Easy Identification & Installation: Standard Y/G color coding meets international safety standards for grounding conductors.
• Cost-Effective Performance: Significant material cost savings versus pure copper while maintaining or exceeding required electrical and mechanical properties.
• Long Service Life: Designed for decades of reliable service in harsh outdoor and industrial environments.