17.2 mm Copper Bonded Earth Rod Supplier
Product Overview
The 17.2 mm copper bonded earthing rod from Thunder Earthing is India’s most widely specified grounding electrode engineered for industrial, commercial, and infrastructure applications that demand long-term reliability, low earth resistance, and full IS 3043 compliance.
Manufactured using an advanced molecular copper bonding process, each rod features a 250-micron electrolytic copper layer deposited atom-by-atom onto a high-tensile steel core (≥ 600 N/mm²). The result is a grounding electrode that performs like solid copper without the cost and outlasts conventional electrodes by decades.
When a project calls for a “standard” copper bonded earth rod without specifying a diameter, 17.2 mm is the industry-default. It strikes the ideal balance between electrical conductivity, mechanical driveability, and total installed cost – which is why it remains the dominant choice for power infrastructure, solar plants, data centres, hospitals, and telecom networks across India. All our rods are manufactured in compliance with IS 3043 (BIS Code of Practice for Earthing) standards.
Technical Specifications
| Specification | Value |
|---|---|
| Diameter | 17.2 mm |
| Core Material | High-tensile steel (>= 600 N/mm2) |
| Copper Layer | 250 microns — molecular bonding process |
| Lengths | 1 m, 1.5 m, 2 m, 3 m standard; custom on request |
| Coupling | Threaded end for multi-section deep installation |
| Standard | IS 3043 — Code of Practice for Earthing |
| Corrosion | Resistant to acidic, alkaline, saline soil conditions |
| Expected Life | 25–30+ years underground service |
| Application | Industrial / Commercial — Most Specified |
| Supply | Pan-India from Salem, Tamil Nadu |
Performance vs GI Earthing Electrodes
Conductivity: Why Copper Outperforms Galvanized Iron
Copper’s electrical conductivity is approximately 6 times higher than galvanized iron. In practical terms, a 17.2 mm copper bonded earth rod installed at the same depth and in the same soil conditions as a GI electrode will achieve significantly lower earth resistance — often meeting IS 3043’s industrial target of ≤ 1 ohm in fewer electrode installations. This directly reduces your earthing system’s material and labour cost.
Service Life: 25–30+ Years vs 7–15 Years
GI earthing electrodes typically corrode and lose electrical effectiveness within 7–15 years in Indian soil conditions — particularly in acidic, saline, or industrial soils. A Thunder Earthing 17.2 mm copper bonded rod is rated for 25–30+ years of underground service. Over a 30-year infrastructure lifecycle, this means fewer replacements, lower maintenance cost, and no unexpected system downtime from electrode failure.
Deep Installation Capability
The high-tensile steel core (≥ 600 N/mm²) withstands the impact force of hammer-driving without bending or buckling — even when installing through hard, rocky, or laterite terrain. The threaded coupling system allows multiple sections to be joined end-to-end, enabling deep-earth installation in high-resistivity soils where a single rod length cannot achieve the target earth resistance. For more details on grounding systems, refer to earthing system standards widely adopted in India.
Key Features
- 17.2 mm diameter — IS 3043 compliant, India’s most specified copper bonded earth rod size
- 250-micron molecularly bonded copper layer — permanent, non-delaminating, atom-level adhesion
- High-tensile steel core (≥ 600 N/mm²) — drives deep without bending or buckling
- 6x higher electrical conductivity than GI earthing electrodes — lower resistance in fewer rods
- 25–30+ year underground service life — tested across Indian soil types from saline to laterite
- Threaded coupling system — enables multi-section deep-drive installation
- Corrosion-resistant in acidic, alkaline, saline, and industrially contaminated soils
- Achieves ≤ 1 ohm with appropriate backfill compound in most Indian soil conditions
- Multiple standard lengths: 1 m, 1.5 m, 2 m, 3 m — custom lengths available on request
- Manufacturer-direct supply — Pan-India delivery from Salem, Tamil Nadu
Applications
- Industrial & Commercial Buildings — IS 3043 specified earthing systems for LT/HT panels and equipment
- Solar Power Plants — DC string earthing, AC inverter earthing, and lightning protection grounding networks
- Data Centres & Telecom Infrastructure — sensitive equipment grounding requiring low-noise, stable earth reference
- Hospitals & Healthcare Facilities — patient safety earthing and medical equipment protection systems
- Power Substations — transformer neutral earthing, switchgear earthing, and equipment protection grids
- Lightning Protection Systems — earthing terminations for ESE lightning arresters and conventional LPS
- Railways & Metro Infrastructure — traction substation earthing and signalling equipment grounding
- Oil, Gas & Chemical Plants — hazardous area earthing in aggressive soil and chemical environments
- Manufacturing & Industrial Facilities — machine tool earthing, conveyor systems, and process equipment grounding