A **copper bonded earth rod** is a highly durable grounding solution used in electrical and lightning protection systems. It consists of a steel core with a uniform layer of copper bonded onto its surface, ensuring excellent conductivity, corrosion resistance, and mechanical strength. These rods are widely used due to their cost-effectiveness and long service life in various soil conditions.

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### **Key Features of Copper Bonded Earth Rods:**

1. **High Corrosion Resistance**
The outer layer of copper protects the steel core from corrosion, ensuring a long-lasting grounding system.

2. **Excellent Conductivity**
The uniform copper coating ensures low electrical resistance and efficient grounding performance.

3. **Strong Mechanical Properties**
The steel core provides strength and rigidity, making the rod suitable for driving into different types of soil without bending or breaking.

4. **Uniform Copper Bonding**
Electrolytic bonding ensures that the copper layer adheres firmly to the steel core, preventing peeling or cracking during installation.

5. **Cost-Effective**
Compared to pure copper rods, copper bonded rods offer similar performance at a lower cost.

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### **Specifications of Copper Bonded Earth Rods:**

- **Material**: Steel core with electrolytic copper coating
- **Copper Coating Thickness**: Typically 100 microns, 250 microns, or more depending on application requirements
- **Rod Diameter**: Commonly available in 14.2 mm, 16 mm, 17.2 mm, 19 mm, etc.
- **Rod Length**: Ranges from 1 meter to 3 meters
- **Threading**: Threaded or plain depending on installation requirements

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### **Benefits of Using Copper Bonded Earth Rods:**

1. **Durability in Harsh Environments**
Suitable for use in corrosive soils and high-moisture environments.

2. **Easy Installation**
Available with threaded ends for quick coupling and extension during installation.

3. **Versatility**
Widely used in industrial, commercial, and residential applications, as well as in telecommunication towers, substations, and power plants.

4. **Compliance with Standards**
Manufactured as per international grounding standards like IEEE 80, BS EN 62305, and IEC 62561.

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### **Applications:**

- Lightning protection systems
- Substations and power generation plants
- Telecommunication towers
- Industrial grounding systems
- Renewable energy installations (solar farms, wind turbines)
- Oil and gas industry