50×6 mm GI Earthing Strip – IS 3043 Hot Dip Galvanized
Product Overview
The 50×6 mm GI Earthing Strip is a medium-duty grounding conductor designed for safe fault current dissipation in electrical systems. Manufactured using high-quality mild steel and coated with hot dip galvanization, it ensures excellent corrosion resistance, long life, and stable conductivity.
Ideal for industrial plants, commercial buildings, and transformer earthing, this strip provides a cost-effective and reliable earthing solution.
Product Specifications
| Specification | Value |
|---|---|
| Material | Galvanized Iron — Hot Dip Process |
| Width | 50 mm |
| Thickness | 6 mm |
| Cross-Section | 300 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 | Power infrastructure (heavy duty process) |
| Supply | Pan-India from Salem, Tamil Nadu |
Why Hot Dip Galvanization — Not Electroplating
The Indian market contains GI earthing strips manufactured by both hot dip galvanization and electroplating (electro-galvanization). These two processes produce very different zinc coatings. Electro-galvanized strips typically carry a zinc layer of 5–25 microns — applied electrically as a surface deposit that can flake or delaminate under mechanical stress or soil movement.
Thunder Earthing’s 50×6 mm HDP strips are hot dip galvanized: the steel is immersed in a bath of molten zinc at 450–460°C. This produces a zinc-iron alloy layer at the steel surface, topped by a zone of pure zinc. The total coating thickness is 85+ microns — permanently bonded to the steel. The result is a strip that resists corrosion in buried, conduit, and surface-run installations across the full range of Indian soil types.
IS 3043 Compliance — What It Means for This Strip
IS 3043, the Bureau of Indian Standards Code of Practice for Earthing, specifies minimum cross-sections for earthing conductors based on the installation’s prospective fault current. The 50×6 mm HDP strip (300 mm2) is manufactured and tested to meet IS 3043’s material and dimensional requirements, ensuring acceptance at project inspections, by electrical consultants, and for insurance compliance.
For power infrastructure (heavy duty process) installations, the 50×6 mm HDP strip provides the conductor cross-section required to carry earth fault currents safely without thermal damage or voltage drop that could impair protection system operation.
Key Features & Benefits - 50×6 mm GI earthing strip
- IS 3043 Compliant – Meets Indian safety standards
- Hot Dip Earthing Flat with 85+ micron galvanized coating – Delivers superior corrosion protection and long-term durability.
- High Conductivity – Efficient fault current dissipation
- Flat Design – Easy installation & better heat dissipation
- Cost-Effective Alternative to Copper
- Long Service Life in Underground Condition
Uses of This Product
Project engineers typically deploy the 50×6 mm GI earthing strip as the backbone of a grounding electrode system. In a substation layout, it forms the primary mesh grid buried 0.5 m below grade, connecting all equipment frames, transformer neutrals, and surge-arrester grounds. For solar power plants, the strip outlines the perimeter earth loop from which branch conductors (often 32×6 mm) fan out to individual module tables. Industrial factories use it along the main cable corridor to link motor control centres, switchgear, and generator sets to the central earthing pit. Its 300 sq. mm area also satisfies the minimum conductor-size requirements that many utilities impose for HV earthing networks.
Applications - 50×6 mm GI earthing strip
- 33 kV and 66 kV substations
- Utility-scale solar power plants
- Heavy-industry manufacturing floors
- Petrochemical refineries
- Airport runway lighting earthing
- Railway traction substations
- Data-centre perimeter grounding
- Wind-farm collector substations
- Municipal sewage-treatment earthing