Rebar Bonding Clamp ARK Make by DFMHUB for Structural Lightning Protection Systems

A Rebar Bonding Clamp is a critical electrical and mechanical connector used in structural lightning protection systems (LPS) to ensure equipotential bonding between reinforcement steel (rebars) embedded in concrete and the lightning down conductor or earthing network.

In reinforced concrete (RCC) structures, rebars form a continuous conductive mesh. When correctly bonded, this mesh acts as a natural down conductor and earth electrode, safely dissipating lightning currents into the ground. The Rebar Bonding Clamp ARK Make by DFMHUB is engineered to create a permanent, low-resistance, corrosion-resistant bond that remains electrically stable for the entire life of the structure.

Designed and manufactured by DFMHUB, this clamp is purpose-built for Indian construction practices, soil resistivity variations, monsoon-driven moisture cycles, and long-term durability requirements.

Why Rebar Bonding Is Essential in Structural Lightning Protection

The Engineering Principle

Structural lightning protection relies on three fundamentals:

1. Interception of lightning

2. Safe conduction of lightning current

3. Efficient dissipation into earth

Rebars embedded in concrete offer:

• Large conductive cross-section

• Multiple parallel current paths

• Uniform current distribution

• Reduced step and touch potentials

However, these advantages are realized only if rebars are electrically bonded. Poor or inconsistent bonding leads to:

• Arcing within concrete

• Concrete spalling and cracking

• Elevated potential differences

• Failure to meet IEC 62305 requirements

The Rebar Bonding Clamp ARK Make ensures mechanically secure and electrically continuous bonding, even under extreme lightning impulse currents.

Primary Keyword Placement (First 100 Words)

The Rebar Bonding Clamp ARK Make by DFMHUB is a specialized connector used in structural lightning protection systems to bond reinforcement steel bars with the earthing and down conductor network. Designed for Indian infrastructure and compliant with IEC 62305, this rebar bonding clamp ensures permanent equipotential bonding in RCC foundations, high-rise buildings, industrial plants, and critical infrastructure across India.

Product Overview: Rebar Bonding Clamp ARK Make

Core Purpose

To create a low-impedance, mechanically robust, corrosion-resistant electrical connection between:

• Rebar to rebar

• Rebar to copper / aluminium down conductors

• Rebar to foundation earth conductors

Typical Installation Locations

• RCC foundations

• Columns and footings

• Raft foundations

• Pile caps

• Basement slabs

Component-Wise Engineering Breakdown

Electrical & Mechanical Performance Characteristics

Structural Lightning Protection Methodology Using Rebar Bonding Clamp

Step-by-Step Engineering Method

Step 1: Rebar Network Identification

• Identify vertical and horizontal rebars forming the structural cage

• Ensure continuity across columns and foundations

Step 2: Clamp Selection

• Select clamp size based on:

  • Rebar diameter (8 mm to 32 mm typical in India)

  • Conductor size (25×3 mm copper strip, 8–10 mm round conductor)

Step 3: Surface Preparation

• Remove loose rust, cement slurry, or oil

• No aggressive grinding required due to serrated clamp design

Step 4: Mechanical Fixing

• Clamp installed with controlled torque

• Ensures permanent metal-to-metal contact

Step 5: Integration with Earthing System

• Bonded rebar network connected to foundation earth electrodes

• Achieves equipotential earthing as per IEC 62305

Design Philosophy: Engineered for Indian Conditions

India-Specific Engineering Considerations

The Rebar Bonding Clamp ARK Make by DFMHUB is not adapted from imported designs—it is engineered specifically for Indian construction realities.

Standards & Compliance

Applicable International & Indian Standards

Testing & Quality Assurance

Electrical Testing

• High impulse current testing (10/350 µs)

• Contact resistance measurement

• Thermal stability under surge conditions

Mechanical Testing

• Tensile pull-out strength

• Vibration resistance

• Long-term pressure retention

Environmental Testing

• Salt spray corrosion testing

• Concrete alkalinity exposure

• Humidity and temperature cycling

Test reports and compliance certificates are available on request.
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Industry-Wise Applications in India

Used extensively in Mumbai, Delhi NCR, Bengaluru, Chennai, Hyderabad, Pune, Ahmedabad, and industrial corridors across India.

Manufacturer vs Trader: Why ARK Make by DFMHUB

Services & Technical Support

DFMHUB provides end-to-end engineering support, including:

• Lightning risk assessment (IEC 62305-2)

• Structural LPS design

• Foundation earthing layouts

• Product selection & BOQ optimization

• Installation guidance

• As-built documentation

👉 CTA: Request Engineering Consultation

Frequently Asked Questions (FAQs)

1. What is the function of a rebar bonding clamp in lightning protection?

It electrically bonds reinforcement steel to form a continuous lightning current path into earth.

2. Is rebar bonding mandatory under IEC 62305?

Yes, equipotential bonding of structural metal is mandatory to prevent dangerous sparking.

3. Can rebars act as natural down conductors?

Yes, when correctly bonded and connected to earth.

4. Is the ARK Make clamp suitable for Indian soil conditions?

Yes, it is designed for high resistivity soils, moisture cycles, and corrosion risks in India.

5. Does it require maintenance after concreting?

No, it is a permanent, maintenance-free connection.

6. Can it connect copper strip to steel rebar?

Yes, it is designed for bimetallic compatibility.

7. Is testing documentation available?

Yes, impulse, corrosion, and mechanical test reports are available.

8. Can it be used in government projects?

Yes, it complies with IEC and NBC requirements used in CPWD and PSU projects.

9. What rebar sizes are supported?

Typically from 8 mm to 32 mm, with custom sizes available.