Copper Bonded Rods

Premium copper-coated steel earthing rods, UL 467 compliant for long, corrosion-resistant service

Copper bonded earthing rods are the modern standard for low-resistance grounding in industrial, commercial, and infrastructure projects. A high-tensile steel core provides mechanical strength; a molecularly bonded copper coating delivers the conductivity and corrosion resistance required for long-term performance underground.

Norton Power's copper bonded rods are CPRI-tested and manufactured to UL 467, with copper coating thicknesses from 50 microns up to 250 microns. Field-tested for long, corrosion-resistant service in standard Indian soil conditions, every rod is built to withstand visual inspection per IEC 62561-2 — meaning what you see on installation day is what you get for years to come.

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Features

Solid steel core with molecularly bonded copper coating from 50 to 250 microns
CPRI tested at multiple fault current carrying capacities
Fully compliant with IS 3043:2018, IEEE 80, NBC 2016, and IEC 62561-2
99.99% pure electrolytic copper bonded via electroplating process
Long, corrosion-resistant service life in standard soil conditions
Customizable lengths and diameters for project-specific requirements

Why choose Norton Power

Superior corrosion resistance compared to galvanized iron alternatives — field studies show GI rods fully degraded after 10 years while bonded rods remain intact
Lower lifetime cost despite higher upfront price (no replacement cycle)
Combines steel's mechanical strength with copper's electrical performance
Easy to drive deep into soil with standard drive heads
Couplable for deep installations beyond 3 meter rod lengths

Specifications

Core material	High tensile low carbon steel
Coating material	99.99% pure electrolytic copper
Coating thickness	50µm, 100µm, 150µm, 200µm, 250µm
Diameter	13, 14, 16, 17
Length	1, 1.5, 2, 3 (custom on request)
Tensile strength	≥ 600 N/mm²
Min resistance to ground	≤ 1 Ω in standard soil with proper backfill
Service life	Long service life (corrosion-resistant) in normal soil conditions

Standards compliance

IS 3043:2018IEEE 80NBC 2016IEC 62561-2UL 467

Applications

Power transmission and distribution substations

Solar PV plant grounding systems

Cement, steel, and chemical manufacturing facilities

Telecom towers and BTS sites

Railway signal and traction systems

High-rise commercial and infrastructure projects

Models & variants

Ø 13 mm · lengths: 1, 1.5, 2, 3 m
Ø 14 mm · lengths: 1, 1.5, 2, 3 m
Ø 16 mm · lengths: 1, 1.5, 2, 3 m
Ø 17 mm · lengths: 1, 1.5, 2, 3 m

Frequently asked questions

How long does a copper bonded rod last underground?

Field studies show copper bonded rods maintain integrity far longer than galvanized iron rods, which typically degrade within 8-12 years in standard Indian soil conditions.

What is the minimum copper coating thickness recommended?

UL 467 specifies 250 microns minimum for outdoor industrial installations. For indoor or short-term applications, 50-100 micron variants are available at lower cost.

Are these rods suitable for solar plant earthing?

Yes. The combination of corrosion resistance and stable low resistance makes copper bonded rods ideal for solar PV plants where ground systems must function reliably for the full plant lifetime.

Can I couple multiple rods for deep installations?

Yes. Norton Power supplies coupling threads and accessories so multiple rods can be joined for installations deeper than the standard 1-3 meter lengths.