Copper Earth Busbar

The Copper Earth Busbar comes in various forms—solid, hollow, flat, or round—depending on application demands. Standard sizes range from 25mm × 3mm strips to heavy-duty 150mm × 15mm bars. These Busbars act as centralized grounding nodes, supporting multiple terminations while minimizing ground potential rise.

For specialized installations, we also offer Custom Copper Ground Bars with tailored hole patterns, mounting options, and insulator configurations.

Key Features

• High Conductivity: Pure copper with >99.9% purity offers conductivity over 58 MS/m, or 100% IACS, far outperforming steel or aluminum in grounding applications.

• Thermal Stability: Supports continuous operation under high current loads (e.g., 1600A for 100mm × 10mm) with efficient heat dissipation.

• Corrosion Resistance: Available as Bare Copper Earth Bars for indoor use or Tinned Copper Earth Busbars for marine, coastal, or chemical environments.

• Mechanical Strength: Hard-drawn bars deliver yield strengths of up to 350 MPa, resisting deformation during fault events or mechanical stress.

• Customizable Options: Our Copper Earth Bonding Bars can be pre-drilled, silver/tin-plated, or equipped with disconnect links, making them ideal for fast integration.

Common Applications

1. Substations & Transformers
   Use heavy-section Copper Grounding Busbars (e.g., 100mm × 12mm) to conduct fault currents up to 63kA for 3 seconds safely to ground.

2. Data Centers & Telecom
   Our Copper Earth Bars with Insulators are used to bond racks, panels, and equipment, minimizing voltage differences and ensuring compliance with TIA-607-B.

3. Industrial Facilities
   Copper Busbars provide clean, secure earth reference points for machinery and control cabinets—frequently installed as Copper Earthing Strips along cable trays.

4. Solar & Wind Energy Systems
   In renewable installations, Tinned Copper Earth Busbars offer lightning protection and ground continuity across combiner boxes, inverter stations, and metal frames.

5. Marine & Outdoor Installations
   Saltwater-resistant Bare Copper Earth Bars or tinned versions with SN96.5-Cu coatings provide reliable corrosion protection on ships, rigs, and ports.

Installation & Maintenance

Installation Tips:

• Always use properly torqued bolts (e.g., 20–25 Nm for M10) with contact-enhancing compound for secure bonding.

• Mount Copper Earth Bars with Insulators on non-conductive standoffs to isolate from structural grounds when required.

• Ensure minimum bend radius of 5× thickness for formed bars to avoid stress fractures.

Maintenance:

• Quarterly: Visual inspection for discoloration, loose bolts, or signs of overheating

• Annually: Contact resistance check (target <50μΩ); ground resistance measurement (target <1Ω)

• Surface Cleaning: Use alcohol wipes for light oxidation or 5% citric acid for deeper cleaning; follow up with antioxidant treatment

• Replacement: Required if corrosion reduces cross-section by over 10% or resistance remains high after treatment

Product Variants Available

Need a Custom Copper Earth Busbar Solution?

Whether you're building an industrial control panel, upgrading a substation ground grid, or designing a DIY grounding system, we offer complete customization, from hole layouts to surface treatments and mounting hardware. Contact our team for drawings, datasheets, or a free quote.

FAQ – Copper Earth Busbar

1. What Is a Copper Earth Busbar?

A Copper Earth Busbar is a conductive copper bar used to provide a common grounding point for electrical installations. It ensures safe and effective dissipation of fault currents into the ground.

2. What Are the Benefits of Using a Copper Earth Busbar?

• High conductivity for reliable grounding

• Corrosion resistance, especially with tinned options

• Durable for long-term installation

• Easy connection to multiple circuits and devices

• Suitable for both indoor and outdoor use

3. Where Is a Copper Earth Busbar Typically Used?

Copper Earth Busbars are commonly used in:

• Electrical panels and switchboards

• Substations and transformer yards

• Data centers and telecom systems

• Industrial machinery grounding

• Lightning protection systems

4. What Types of Copper Earth Busbars Are Available?

• Bare Copper Earth Bar

• Tinned Copper Earth Busbar

• Multi-hole Earth Busbar with Insulators

• Copper Busbar with Terminal Blocks

• Custom-sized Ground Bars

5. Can I Get a Customized Copper Earth Busbar?

Yes. Copper Earth Busbars can be customized in terms of:

• Dimensions (length, width, thickness)

• Number and size of connection holes

• Surface finish (bare or tinned)

• Mounting insulators and brackets

• Pre-installed terminal lugs

6. How Do I Install a Copper Earth Busbar?

Installation steps typically include:

1. Mounting the bar using insulators or brackets

2. Connecting the main grounding wire to the busbar

3. Attaching individual circuit ground wires to the terminals

4. Ensuring all connections are tightened and corrosion-protected