100x6 mm Hot Dip Galvanized Iron Earthing Strip — IS 3043 Compliant | Manufacturer & Supplier India

100x6 mm hot dip galvanized iron earthing strip

Product Overview

The 100×6 mm hot dip galvanized iron earthing strip is a flat mild steel conductor measuring 100 mm in width and 6 mm in thickness, coated with zinc through the hot dip galvanization process. With a 600 mm² cross-sectional area and an 85+ micron zinc coating compliant with IS 3043, this earthing strip is manufactured by True Power for high fault current grounding applications across substations, industrial plants, power generation facilities, and solar installations in India.

This earthing strip — also referred to as a GI earthing flat, GI patti, or earth conductor strip — provides a low-resistance path for fault current to safely dissipate into the ground. It is a mandatory component in electrical grounding systems for substations, industrial plants, power generation facilities, and large commercial installations as specified by the Bureau of Indian Standards under IS 3043: Code of Practice for Earthing.

True Power manufactures and supplies 100×6 mm hot dip galvanized iron earthing strips with 85+ micron zinc coating, IS 3043 compliance, and Pan-India delivery from our facility in Noida, Uttar Pradesh.

Product Specifications

The following specifications apply to True Power’s 100×6 mm hot dip galvanized iron earthing strip:

SpecificationValue
MaterialGalvanized Iron — Hot Dip Process
Width100 mm
Thickness6 mm
Cross-Section600 mm2
Zinc Coating85+ microns — hot dip galvanized (not electroplated)
StandardIS 3043 — Code of Practice for Earthing
SurfaceUniform zinc coating, smooth finish
Lengths3 m, 6 m standard; custom on request
ApplicationEHV substation / critical national infrastructure
SupplyPan-India from Salem, Tamil Nadu

Applications

The 100×6 mm hot dip galvanized iron earthing strip is specified for installations where high fault current carrying capacity is essential. With a 600 mm² cross-section, it is designed for the most demanding grounding environments in India:

  • HV and EHV substations: main earthing bus conductors, perimeter ring earthing, and equipment bonding
  • Power generation plants: turbine hall grounding, transformer earthing connections, and switchyard earth mats
  • Lightning protection systems: down-conductor connections between ESE lightning arresters and earth electrodes as per IS 2309 and IEC 62305
  • Industrial facilities: grounding for transformers, DG sets, CNC machines, PLC equipment, and motor control centres
  • Solar power plants: module frame bonding, combiner box earthing, and inverter grounding per IEC 62446
  • Critical infrastructure: hospitals, data centres, and telecom towers where uninterrupted grounding is essential

The 100×6 mm size is typically specified by electrical consultants and EPC contractors for projects with prospective fault currents exceeding 30 kA, where IS 3043 mandates a conductor cross-section large enough to carry the fault current safely without thermal damage.

Key Features & Benefits

Hot dip galvanization is the standard coating process for GI earthing strips because of its measurably superior performance compared to electro-galvanizing or plain mild steel:

Zinc-iron metallurgical bond. During hot dip galvanization, the steel strip is immersed in molten zinc at 450–460°C. This creates a zinc-iron alloy layer that is permanently bonded to the steel surface — not merely deposited on it. The result is a coating that cannot peel, flake, or delaminate under mechanical stress or soil movement.

85–100 micron coating thickness. Hot dip galvanization produces a zinc coating of 85–100 microns, which is approximately four times thicker than electro-galvanized coatings (typically 5–25 microns). This directly translates to longer corrosion protection and extended service life.

Self-healing corrosion protection. Zinc acts as a sacrificial anode, preferentially corroding to protect the underlying steel. Even at cut edges or scratches, the surrounding zinc protects the exposed steel from rusting.

12–18 year service life. In standard Indian soil conditions (moderate resistivity, non-saline, pH 5–8), the hot dip galvanized coating provides reliable corrosion protection for 12–18 years without maintenance.

All True Power GI earthing strips are tested per IS 6745 for zinc coating mass and per IS 2629 for galvanization process compliance.

Why Choose True Power GI Earthing Strip

True Power is a manufacturer and supplier of earthing materials with over 12 years of project installations across India. Our 100×6 mm GI earthing strips are chosen by electrical consultants, EPC contractors, and industrial facility managers for the following reasons:

  • Manufactured from IS 2062 grade mild steel with consistent dimensional accuracy (±0.5 mm tolerance)
  • Hot dip galvanized with ≥85 micron zinc coating, verified per IS 6745 on every production batch
  • CPRI and NABL tested with certificates available for project documentation and tender compliance
  • Pan-India dispatch from our facility in Noida, UP — with supply capability to any project site across the country
  • Custom lengths beyond the standard 7–10 metre range, available on request for large-scale projects
  • Complete earthing ecosystem: GI earthing strips, chemical earthing electrodes, copper bonded rods, backfill compound, earth pit covers, and ESE lightning arresters — all from a single manufacturer

Our installations across residential, commercial, industrial, and government projects have been functioning without breakdown for over 12–15 years since commissioning

FAQs

What is the expected service life of the 100x6 mm GI earthing strip?

In standard Indian soil conditions (moderate resistivity, non-saline), the 85+ micron hot dip galvanized coating provides a service life of 15–20 years. In aggressive soils (saline coastal, acidic industrial), service life is shorter. For installations requiring 25+ year life in any soil, Thunder Earthing recommends upgrading to copper bonded earthing strip.

Can this strip be used for lightning protection down conductors?

GI strips are accepted for lightning protection down conductors under IS 2309 for conventional systems. However, copper or copper bonded strips are generally preferred for lightning protection due to their superior conductivity and corrosion resistance. For IS 3043 earthing conductors (not direct down conductors), GI strips are fully appropriate.

What is a 100x6 mm hot dip galvanized iron earthing strip used for?

A 100×6 mm GI earthing strip is used as an IS 3043-compliant earthing conductor for high fault current installations including HV substations, power plants, industrial facilities, and grid-level earthing systems. Its 600 mm² cross-section safely carries prospective fault currents exceeding 30 kA.

What is the difference between GI earthing strip and copper earthing strip?

GI strip has a resistivity of approximately 13.8 μΩ·cm with a 12–18 year lifespan and costs ₹70–95 per kg. Copper strip has a resistivity of 1.72 μΩ·cm with a 25–30 year lifespan but costs significantly more. GI is suitable for standard soil; copper is recommended for saline, coastal, or acidic environments.

How do you install GI earthing strip according to IS 3043?

Installation involves 7 steps: route planning (200 mm clearance), trench excavation (500 mm minimum depth), strip straightening and laying, welded or bolted jointing (50 mm minimum overlap), PVC sleeve application for underground sections, backfilling, and earth resistance testing. The final resistance must be below 1Ω for critical installations or below 5Ω for general use.

Get a Quote for 100×6 mm GI Earthing Strip

Get in touch today for pricing, bulk discounts, and technical guidance: 📞 +91-9952757731 | Visit: thunderearthing.com

Protect your infrastructure. Get your earthing right — once, permanently, with zero maintenance.