Equipotential Bonding Bar ARK Make by DFMHUB for Structural Lightning Protection Systems

Lightning protection is not only about intercepting lightning strikes and safely conducting current to earth—it is equally about controlling potential differences within a structure during transient events. The Equipotential Bonding Bar (EBB) plays a foundational role in this process by ensuring that all conductive parts of a building are bonded to a single reference potential, dramatically reducing the risk of flashover, side-flash, equipment damage, and human injury.

The Equipotential Bonding Bar – ARK Make by DFMHUB is engineered specifically for structural lightning protection systems used in Indian conditions, combining robust electrical performance, mechanical durability, and strict compliance with IEC 62305 and related international standards.

Designed for use in commercial buildings, industrial plants, data centers, hospitals, substations, infrastructure projects, and high-rise structures across India, the ARK Make Equipotential Bonding Bar ensures safe, measurable, and auditable bonding performance over the entire life of the installation.

What Is an Equipotential Bonding Bar?

Clear Technical Definition

An Equipotential Bonding Bar (EBB) is a metallic busbar—typically copper or tinned copper—used to interconnect:

• Lightning down conductors

• Earthing conductors

• Structural steel reinforcements (rebars)

• Electrical earths

• Metallic services (water, gas, HVAC, cable trays)

The objective is to equalize electrical potential during lightning strikes or fault conditions so that no dangerous voltage difference can develop between conductive elements.

Why It Matters in Lightning Events

During a lightning discharge:

• Current magnitude can exceed 200 kA

• Voltage gradients rise sharply across structures

• Unbonded metallic parts can create side flashes

An equipotential bonding bar eliminates these risks by creating a low-impedance common bonding point.

Equipotential Bonding Bar ARK Make by DFMHUB – Product Overview

Core Design Philosophy

The ARK Make Equipotential Bonding Bar is designed with a system-level engineering approach, ensuring:

• Minimal contact resistance

• High mechanical integrity

• Long-term corrosion resistance

• Easy inspection and testing

Key Engineering Objectives

• Support high lightning impulse currents

• Maintain performance under Indian climatic stress

• Allow multiple conductor terminations without compromise

• Enable structured, auditable lightning protection layouts

Component-Wise Construction Breakdown

Electrical & Mechanical Performance Parameters

Design & Engineering Methodology (Step-by-Step)

Step 1: Risk Assessment (IEC 62305-2)

• Lightning risk evaluation for structure

• Identification of bonding points

Step 2: Bonding Network Design

• Down conductor interconnection

• Earthing grid interface

• Equipment earth integration

Step 3: Bonding Bar Placement

• Main Equipotential Bonding Bar (MEBB)

• Local Equipotential Bonding Bars (LEBBs)

• Accessibility for inspection

Step 4: Conductor Termination

• Use of approved lugs/clamps

• Controlled torque tightening

Step 5: Verification & Documentation

• Continuity testing

• Visual inspection

• As-built drawings

Compliance with Standards & Regulations

Standards & Compliance Table

India-Specific Engineering Considerations

Soil Conditions

• High resistivity soils (rocky, sandy)

• Seasonal moisture variation

• Chemical aggressiveness in coastal regions

Climate Factors

• Extreme heat cycles

• High humidity & monsoons

• Industrial pollution exposure

How ARK Make Addresses This

• Corrosion-resistant finishes

• Robust mechanical mounts

• Long-term conductivity stability

Industry-Wise Applications

Commercial Buildings

• IT parks

• Corporate offices

• High-rise towers

Industrial Facilities

• Manufacturing plants

• Refineries

• Warehouses

Infrastructure

• Airports

• Metro rail projects

• Tunnels & bridges

Critical Facilities

• Hospitals

• Data centers

• Power substations

Indian City Use Cases

• Coastal: Mumbai, Chennai, Kochi

• High-rise: Bengaluru, Gurugram

• Industrial: Pune, Ahmedabad, Vadodara

Manufacturer vs Trader: Why It Matters

Testing, Quality Control & Certifications

Manufacturing QA

• Raw material inspection

• Dimensional verification

• Surface finish checks

Electrical Testing

• Continuity testing

• Resistance measurement

Mechanical Testing

• Fastener torque validation

• Mount integrity checks

Documentation

• Test reports

• Compliance certificates

• Installation guidelines

Services & Technical Support

• Lightning protection design assistance

• BOQ & tender support

• Site installation guidance

• As-built documentation

• Post-installation audit support

Frequently Asked Questions (FAQs)

1. What is the role of an equipotential bonding bar in lightning protection?

It equalizes potential between conductive parts, preventing dangerous voltage differences during lightning events.

2. Is the ARK Make bonding bar compliant with IEC 62305?

Yes, it is fully designed to align with IEC 62305 lightning protection requirements.

3. Can it be used in coastal Indian environments?

Yes, corrosion-resistant materials make it suitable for coastal and industrial regions.

4. How many conductors can be terminated?

Customization allows multiple termination points as per project needs.

5. Is it suitable for data centers?

Absolutely—equipotential bonding is critical for sensitive electronic environments.

6. Can it be used for both lightning and electrical earthing?

Yes, when designed correctly as part of an integrated earthing system.

7. Does DFMHUB provide customization?

Yes, bonding bars can be tailored for size, hole pattern, and mounting.

8. What maintenance is required?

Periodic visual inspection and continuity testing.

9. Is it approved for government projects?

Yes, compliant with commonly referenced Indian and international standards.