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Copper Bonded Grounding Electrode for Wind Turbines
This copper bonded grounding electrode is developed for wind turbine lightning protection and renewable energy grounding systems. The copper coating provides excellent corrosion resistance, while the steel core delivers high mechanical strength for deep installation. It creates an efficient grounding path to safely transfer lightning strikes, surge currents, and electrical faults into the earth, making it ideal for wind farms and outdoor power generation facilities.
What Is Copper Ground Rod？
Product Definition：
Copper ground rods are electrical conductors used to safely dissipate fault currents, lightning strikes, and static electricity into the earth. They are the most critical component of any electrical grounding system, providing a low-resistance path to ground for personnel safety and equipment protection-.
Two Main Types：
| Type | Construction | Key Features | Best For |
|---|---|---|---|
| Solid Copper Rod | 100% high-purity copper (C11000 ETP) | Maximum conductivity (≥101% IACS), superior corrosion resistance, 50+ year lifespan- | Marine, highly corrosive soil, critical infrastructure |
| Copper-Bonded Steel Rod | High-strength steel core + molecularly bonded copper layer (≥0.254mm / 10 mils)- | Combines copper conductivity with steel strength (tensile up to 600N/mm²)-37, cost-effective- | General grounding, lightning protection, building earthing |
Key Characteristics：
| Feature | Description |
|---|---|
| High Conductivity | Solid copper ≥101% IACS; copper-bonded delivers nearly 90% of copper‘s conductivity- |
| Corrosion Resistance | 50+ years service life. Copper layer will not crack when bent or tear when driven--37 |
| High Mechanical Strength | Steel core tensile strength up to 600 N/mm² – drives easily into hard soil- |
| UL 467 Listed | Minimum 10 mils (0.254mm) copper coating. UL logo stamped on each rod--44 |
| Molecular Bond | Copper molecularly bonded to nickel-sealed steel core – no peeling or delamination-44 |
| 100% Recyclable | Environmentally friendly with no loss of properties |
Typical Applications by Industry：
| Industry | Applications | Recommended Type |
|---|---|---|
| Power & Substations | Transformer grounding, switchgear earthing, transmission towers | Solid copper / Copper-bonded |
| Lightning Protection | Building lightning rods, telecom towers, wind turbines | Copper-bonded |
| Telecommunications | Cell towers, base stations, data centers | Solid copper / Copper-bonded |
| Industrial Facilities | Plants, factories, heavy equipment grounding | Copper-bonded |
| Residential & Commercial | Building earthing, electrical service entrance | Copper-bonded |
| Renewable Energy | Solar farms, wind turbine grounding | Solid copper / Copper-bonded |
| Transportation | Railways, airports, ports | Copper-bonded |
Key Specifications – Copper Ground Rod
Solid Copper Ground Rod：
| Parameter | Specification / Range | Remarks |
|---|---|---|
| Standards | ASTM B2, ASTM B187, BS 7430, IEC 62561-2 | Others on request |
| Material | C11000 (ETP – Electrolytic Tough Pitch) | Copper purity ≥99.9%- |
| Diameter | 1/2″ (12.7mm), 5/8″ (15.9mm), 3/4″ (19.1mm), 1″ (25.4mm) | Custom on request |
| Length | 1.5m, 2.0m, 2.4m, 2.5m, 3.0m, 3.5m, 4.0m | Custom length available |
| Conductivity | ≥101% IACS | – |
| Density | 8.94 g/cm³ | – |
| Tensile Strength | ≥290 MPa | For hard-drawn copper- |
| End Finish | Pointed one end; Threaded one or both ends (UNC) | – |
Copper-Bonded Steel Ground Rod：
| Parameter | Specification / Range | Remarks |
|---|---|---|
| Standards | UL 467, IEC 62561-2, ASTM B416 | Others on request |
| Construction | Low carbon steel core + copper coating | Steel core carbon content ~0.15%- |
| Copper Purity | 99.9% electrolytic copper coating-44 | – |
| Copper Coating Thickness | Standard: ≥0.254mm (10 mils)-; Premium: ≥0.330mm (13 mils)- | UL 467 listed rods require minimum 10 mils- |
| Diameter | 3/8″ (9.5mm), 1/2″ (12.7mm), 5/8″ (15.9mm), 3/4″ (19.1mm), 1″ (25.4mm)-44 | Custom on request |
| Length | 1.5m – 6.0m-37 | UL 467 requires minimum 2.44m (8′)- |
| Steel Core Tensile Strength | ≥552 MPa (80,000 psi)-44 | Up to 600 N/mm²-37 |
| Coating Bond | Molecular bond – no peeling or delamination-44 | Passes 90° bend test x3-8 |
| End Finish | Pointed (chamfered) one end-; Threaded one or both ends | – |
| Marking | UL logo, diameter, length stamped on rod-44 | – |
Available Diameters & Corresponding Thread Sizes：
| Diameter (inch) | Diameter (mm) | Thread Size (UNC) | Typical Application |
|---|---|---|---|
| 3/8″ | 9.5 | – | Light duty, telecom |
| 1/2″ | 12.7 | 1/2″ | Residential, general |
| 5/8″ | 15.9 | 5/8″ | Standard commercial (most common) |
| 3/4″ | 19.1 | 3/4″ | Industrial, substations |
| 1″ | 25.4 | 1″ | Heavy industrial, transmission |
Wuxi Yansheng Technology Co., Ltd. – Company Profile
Wuxi Yansheng Technology Co., Ltd. is a comprehensive technology enterprise specializing in high-quality metal raw material supply and precision processing services. Located in Wuxi City, a major steel distribution center in China, the company leverages the mature industrial chain advantages of the Yangtze River Delta region to provide professional material solutions to global customers.
As a technology-driven enterprise, Yansheng Tech maintains strategic cooperation with several well-known steel mills (such as TISCO, Baosteel, JISCO, Dongfang Special Steel, etc.) and is an authorized distributor of these mills. Our main products include stainless steel (304/316/BA/EP pipe), carbon steel, silicon steel, copper, aluminum and other materials in the form of sheets, pipes, coils, as well as custom-processed parts.
Core Business Highlights:
Material Supply: We maintain sufficient stock inventory, offering 304/316 stainless steel sheets, pipes, coils, API 5L casing, electrical steel, and more. We also accept orders for special steel grades and non-standard specifications.
Precision Processing: Equipped with imported mirror polishing machines, water jet cutting machines, high-precision slitting/leveling lines, large CNC milling machines, boring machines, and more. We provide customized services including BA/EP pipe finishing, medium plate polishing, matte finishing, embossing, plasma cutting, etc.
Main Applications: Our products are widely used in industries such as solar energy, pressure vessels, boilers, electric heating equipment, petrochemicals, environmental protection machinery, pharmaceutical and food processing, and new energy vehicles.
Our processing center is located in Xishan District, Wuxi City, covering nearly 10,000 square meters, with an experienced technical and service team. We adhere to the business philosophy of "Technology First, Quality Oriented, Service Supreme" , providing 24/7 warehousing and logistics support as well as comprehensive after-sales service. Yansheng Tech is committed to being your trusted long-term partner.
Frequently Asked Questions (FAQ)
Q1. What products do you mainly supply?
We mainly supply stainless steel (304/316/BA/EP pipes), carbon steel, silicon steel, copper, aluminum, and other materials in sheets, pipes, and coils. Customized processing services are also available.
Q2. Do you have stock available?
Yes, we maintain sufficient stock for most standard specifications. For non-standard sizes, we can accept orders with reasonable lead time.
Q3. Can you provide MTC (Mill Test Certificate)?
Yes, we provide MTC for every shipment. Third-party inspection (SGS, TÜV, BV, etc.) is also available upon request.
Q4. Do you support video inspection before shipment?
Yes, we fully support video inspection. You can also arrange an agent or third party to visit our factory for on-site inspection before shipment.
Q5. What are your main export markets?
We export to Southeast Asia, the Middle East, Europe, Africa, and South America. We have rich experience in international trade and export documentation.
Q6. What payment terms do you accept?
We accept T/T (wire transfer), L/C at sight (irrevocable), and sometimes a combination of T/T deposit + L/C balance. Payment terms are negotiable based on order size and customer history.
Q7. Can you provide samples?
Yes, samples are available for most standard products. For custom sizes, we may need to produce small batch samples. Sample cost and shipping are usually borne by the customer, but can be discussed.
Q8. What is your typical lead time?
For stock items: 7–10 days after order confirmation. For custom production: 20–30 days, depending on the specification and quantity.
Q9. What quality certifications do you have?
We provide MTC with every shipment. Our partner mills are ISO9001 certified. We can also assist with third-party inspections (SGS, TÜV, BV) upon request.
Q10. How can I get a quotation?
Please send us your material grade, specification (size, thickness, length), quantity, and preferred trade term (FOB, CIF, DAP, etc.). We will reply with a detailed quotation within 24 hours.
Send Inquiry to This Supplier
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