Copper Clad Steel Strand Wire (CCS) | High-Strength Bimetallic Grounding Conductor

In modern grounding and lightning protection systems, reliability, mechanical strength, and long-term corrosion resistance are non-negotiable. Copper Clad Steel Strand Wire (CCS stranded conductor) is a premium bimetallic conductor that perfectly combines the excellent electrical conductivity of copper with the superior tensile strength and rigidity of a steel core. Manufactured by concentrically stranding multiple high-quality copper-clad steel wires, this conductor delivers outstanding performance in demanding earthing and lightning protection applications while offering significant cost savings over pure copper alternatives.

1. Product Description & Conductor Structure

Copper Clad Steel Strand Wire consists of a steel core metallurgically bonded with a continuous layer of pure copper, then stranded into flexible yet robust conductors. Available in common configurations:

• 3-wire, 7-wire, or 19-wire stranded structures
• Conductivity grades of 30% IACS veya 40% IACS
• High-strength (HS), extra-high-strength (EHS), and other temper options

The metallurgical bonding ensures the copper layer will not peel or separate under mechanical stress, vibration, or thermal cycling, providing consistent electrical performance and mechanical integrity over decades of service.

2. Primary Applications

CCS stranded conductors are widely specified across critical infrastructure projects for:

• Lightning protection and grounding systems for communication towers, broadcast stations, and high-frequency coaxial cable installations
• Earthing systems in electrified railways, high-speed rail, light metro, and subway networks
• Grounding wires for power transmission, petrochemical plants, airports, and data centers
• Electrostatic protection and safety earthing in industrial and network communication facilities

Their high tensile strength and flexibility make them ideal for both overhead and buried installations where pure copper conductors would be prone to theft, excessive weight, or mechanical failure.

3. Key Advantages of Copper Clad Steel Strand Wire

• High Strength: Significantly higher tensile strength than pure copper wire of the same diameter, offering superior resistance to breakage and wind/ice loading.
• Reduced Weight: Lighter than equivalent pure copper conductors, allowing longer spool lengths and easier handling/installation.
• Substantial Cost Savings: Much more economical than solid copper while maintaining required conductivity and performance.
• Anti-Theft Protection: Low scrap value compared to pure copper dramatically reduces the risk of theft in exposed installations.
• Uzun Hizmet Ömrü: Excellent conductivity (30% or 40% IACS) combined with robust copper cladding ensures reliable performance for 30+ years in harsh outdoor environments.

4. Compliance Standards

All Copper Clad Steel Strand Wire is manufactured in strict accordance with international specifications, including:

• ASTM B 228 (Copper-Clad Steel Wire for Electrical Conductors)
• ASTM B 229
• NRS 102 and other relevant national standards

5. Technical Parameters (ASTM B 228)

The table below shows representative values for common 19-wire, 7-wire, and 3-wire configurations (40% and 30% IACS grades):

Note: Custom configurations, higher strength grades (HS/EHS), and special packing options are available upon request. Breaking load values vary by temper (30Hs, 40Hs, 30EHS, etc.).

6. Professional Packaging & Delivery

CCS stranded conductors are precision-wound onto sturdy wooden or metal reels with protective wrapping to prevent damage during transportation and storage. Custom packing solutions are available to meet specific project or logistics requirements.