40x6 mm GI Earthing Strip – IS 3043 Hot Dip Galvanized
Heavy-Duty Earthing Strip for Industrial & Substation Applications
The 40×6 mm GI earthing strip is a high-performance grounding conductor designed for heavy industrial plants, substations, and large electrical installations. Manufactured by Thunder Earthing using the hot dip galvanization process, this strip ensures long-term corrosion resistance, high fault current capacity, and full IS 3043 compliance.
With a 240 mm² cross-sectional area, this is the most widely specified GI earthing strip size in India for EPC contractors and electrical engineers handling critical grounding systems.
40x6 mm GI Earthing Strip Specifications
| Specification | Value |
|---|---|
| Material | Galvanized Iron — Hot Dip Process |
| Width | 40 mm |
| Thickness | 6 mm |
| Cross-Section | 240 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 | Heavy industrial / substation |
| Supply | Pan-India from Salem, Tamil Nadu |
Why Choose 40x6 mm Hot Dip GI Earthing Strip?
1. Engineered for High Fault Current
The 240 mm² conductor size ensures safe dissipation of high fault currents, making it ideal for:
- Substations
- Heavy industrial plants
- Solar power systems
2. 85+ Micron Hot Dip Galvanized Coating
Unlike electroplated strips, this product is:
- Immersed in molten zinc (450–460°C)
- Forms a zinc-iron alloy layer
- Provides superior corrosion resistance
✔ No flaking
✔ No peeling
✔ Long service life
3. IS 3043 Compliant Earthing Conductor
Fully aligned with IS 3043 standards, ensuring:
- Approval from electrical consultants
- Acceptance in inspections
- Reliable grounding performance
Hot Dip GI vs Electroplated GI Earthing Strip
| Feature | Hot Dip GI Strip | Electroplated GI Strip |
|---|---|---|
| Zinc Thickness | 85+ Micron | 5–25 Micron |
| Durability | High | Low |
| Corrosion Resistance | Excellent | Poor |
| Life Expectancy | 12–18 Years | 3–5 Years |
| Industrial Use | Recommended | Not Suitable |
Applications of 40x6 mm GI Earthing Strip
The 40×6 GI strip is widely used in:
- Substation earthing systems
- Industrial grounding grids
- Transformer earthing connections
- Switchgear and panel board earthing
- Solar plant earthing systems
- Cable tray and structural bonding
- Building perimeter earthing rings
Key Features & Benefits
240 mm2 cross-section — engineered for heavy industrial / substation fault current requirements
85+ micron hot dip galvanized zinc coating — permanently bonded to steel
IS 3043 compliant — accepted for all standard Indian earthing inspections
Consistent dimensional accuracy — compatible with standard earthing clamps and hardware
Available in 3 m and 6 m lengths, with custom lengths on request. Manufacturer-direct pricing with Pan-India dispatch from Salem. Suitable for surface, buried, and conduit-based earthing applications. Complies with IS 3043 earthing standards set by the Bureau of Indian Standards.