32×6 mm Hot Dip Galvanized Iron Earthing Strip
Why Choose a 32×6 mm GI Earthing Strip?
The 32×6 mm GI earthing strip is a flat conductor used to connect earth electrodes, equipment bodies, and earthing grids in electrical installations. It forms the backbone of any earthing system — carrying fault current from equipment to the earth electrode safely and reliably.
Hot dip galvanizing gives this strip a thick, metallurgically bonded zinc coating (minimum 86 microns) that resists corrosion in buried, embedded, and exposed conditions. Whether you are building a substation earth mat, running a protective earth conductor through a factory floor, or connecting equipment in a commercial complex across Tamil Nadu, this GI earthing strip delivers the conductivity, mechanical strength, and lifespan your project demands.
Technical Specifications of the 32×6 mm GI Earthing Strip
| Specification | Value |
|---|---|
| Material | Galvanized Iron — Hot Dip Process |
| Width | 32 mm |
| Thickness | 6 mm |
| Cross-Section | 192 mm2 |
| Zinc Coating | 85+ microns — hot dip galvanized (not electroplated) |
| Standard | IS 3043 — Code of Practice for Earthing |
| Surface | Uniform zinc coating, smooth finish |
| Lengths | 3 m, 6 m standard; custom on request |
| Application | Medium industrial / distribution earthing |
| Supply | Pan-India from Salem, Tamil Nadu |
Key Features of the 32×6 mm GI Earthing Strip
32 mm × 6 mm cross-section — provides adequate current-carrying capacity for industrial earthing
Hot dip galvanized finish — minimum 86-micron zinc coating per IS 2629 for long-term corrosion protection
Mild steel core — offers mechanical strength for direct burial and surface routing
IS 3043 compliant — meets Indian Standard requirements for earthing conductors
Flexible routing — can be bent, cut, and shaped to follow building contours and trench paths
Low contact resistance — flat surface ensures reliable bolted and welded connections
Available in standard lengths — typically supplied in 6 m or custom-cut lengths
Where Is the 32×6mm GI Earthing Strip Used?
This galvanized earthing flat is a standard component in multiple types of electrical installations:
32×6 mm GI Earthing Strip for Substation Earth Grids and Earth Mats
In electrical substations, a network of GI earthing strips is buried below ground to form the earth mat. The 32×6 mm strip connects earth rods, equipment foundations, and fence earthing into a unified grid that limits step and touch potentials during faults.
32×6 mm GI Earthing Strip in Industrial Plants
Factories use this earthing strip to bond metallic structures, motor frames, panel enclosures, and cable trays to the main earthing system. It provides a continuous, low-impedance fault current path that protects personnel and equipment.
Commercial Buildings and High-Rise Complexes
In commercial installations across Chennai, Coimbatore, and Madurai, the 32×6 mm GI strip runs along cable trenches and risers, connecting each floor’s earthing bus to the building’s main earth electrode.
Telecom Installations and Data Centres
Sensitive electronic equipment in telecom towers and data centres requires clean earthing. This strip connects transient voltage surge suppressors (TVSS) and equipment racks to the facility ground.
Solar Power Plants
Ground-mounted and rooftop solar systems use GI earthing strips to bond module frames, inverter enclosures, and lightning protection components to the earth grid.
Lightning Protection Systems
The 32×6 mm earthing strip serves as a down conductor and horizontal earth electrode in lightning protection installations, connecting air terminals to the earthing system below grade.
Benefits
Reliable Corrosion Protection
The hot dip galvanizing process creates a zinc-iron alloy bond that withstands burial in soil, embedding in concrete, and exposure to humid coastal air — conditions common across Tamil Nadu’s geography.
Adequate Fault Current Capacity
With a 192 mm² cross-sectional area, the 32×6 mm strip handles fault currents in most commercial and medium-industrial earthing systems without overheating or melting.
Easy Installation and Routing
The flat profile allows the strip to be laid in narrow trenches, bolted to walls, or embedded in concrete with minimal space. It can be bent on-site to follow building contours and connected using bolted clamps or exothermic welding.
Cost-Effective Earthing Solution
Compared to copper earthing strips, galvanized iron offers a significantly lower material cost while still meeting IS 3043 performance requirements — making it the standard choice for large-area earth grids where hundreds of metres of conductor are needed.
Long Service Life
When properly installed, a hot dip galvanized earthing strip provides 15 to 25 years of service depending on soil aggressiveness, moisture, and pH levels.
GI Earthing Strip vs. Copper Earthing Strip
Factor | GI Earthing Strip | Copper Earthing Strip |
Material Cost | Lower | 4–5× higher |
Conductivity | Moderate (steel core) | High |
Corrosion Resistance | Good (zinc coating) | Excellent |
IS 3043 Compliance | Yes | Yes |
Typical Lifespan | 15–25 years | 30+ years |
Best For | Large earth grids, cost-sensitive projects | Critical systems, high-conductivity needs |