A single lightning strike can carry tens of thousands of amperes of current. When it hits an unprotected building, the result can be fire, structural cracks, damaged electrical panels and burnt-out electronics, and in the worst cases, loss of life. A pure copper lightning arrester is one of the simplest and most dependable ways to prevent this damage. It gives lightning a safe, low-resistance path from the rooftop to the earth, so the energy is discharged into the ground instead of travelling through walls, wiring and equipment.
As a trusted pure copper lightning arrester manufacturer in India, SG Power Products Pvt. Ltd. (Make: SGPL) designs and produces conventional lightning arresters made from 99.9% pure copper. Our arresters are built for homes, commercial complexes, factories, telecom towers, solar plants, railways and metro projects, and they are manufactured in line with the IEC 62305 standard for lightning protection.
Table of Contents
- What Is a Pure Copper Lightning Arrester?
- Technical Specifications
- Key Features and Benefits
- Pure Copper vs Copper-Bonded vs GI Lightning Arresters
- Applications of Pure Copper Lightning Arresters
- How a Pure Copper Lightning Arrester Is Installed
- Why Choose SG Power as Your Pure Copper Lightning Arrester Manufacturer?
- Buying Tips: How to Choose the Right Pure Copper Lightning Arrester
- Pure Copper Lightning Arrester Price
- Frequently Asked Questions
- Request a Quote
What Is a Pure Copper Lightning Arrester?
A pure copper lightning arrester (also called a copper lightning conductor, copper air terminal or copper spike lightning arrester) is the topmost part of an external lightning protection system. It is mounted at the highest point of a structure, such as a roof, water tank, chimney or tower, where it intercepts the lightning strike.
Once the strike is captured, the current flows through a down conductor (usually a copper strip or tape) into an earthing pit, where it is safely dissipated into the soil. The arrester itself does not “attract” extra lightning; it simply makes sure that if lightning strikes the building, it hits a designed point and follows a controlled path.
The word “pure” matters. Many products on the market are copper-bonded or copper-coated, meaning a thin copper layer is plated over a steel core. A pure copper lightning arrester is made from solid copper of 99.9% purity throughout the rod, spikes and base plate. This gives it the best electrical conductivity and long-term corrosion resistance of any common arrester material.
SG Power Pure Copper Lightning Arrester – Technical Specifications
Below are the specifications of SG Power's standard pure copper conventional lightning arrester (Model CuLA14SG050M):
| Parameter | Specification |
|---|---|
| Manufacturer | SG Power Products Pvt. Ltd. |
| Make | SGPL |
| Product | Conventional Lightning Arrester |
| Model Number | CuLA14SG050M |
| Core Material | 99.9% Pure Copper |
| Main Rod Diameter | 14 mm |
| Total Length | 500 mm |
| Spike Configuration | 5 Spike (multi-point) |
| Base Plate Material | 99.9% Pure Copper |
| Base Plate Size | 80 × 80 mm |
| Compliance Standard | IEC 62305 |
| Applications | Residential, commercial and industrial buildings |
Other diameters, lengths and base plate options are available on request, so the arrester can be matched to the height of the building, the protection level required and the project's design drawings. Use the selectors at the top of this page to see the model number and drawing for each combination.
Key Features and Benefits
99.9% pure copper construction Copper is one of the best electrical conductors available. Using solid copper of 99.9% purity in the rod, spikes and base plate means the arrester offers very low resistance to lightning current, helping it pass the surge to earth quickly and safely.
Five-spike multi-point design The 5-spike head gives multiple discharge points at the top of the arrester. This helps the arrester intercept a strike reliably and spread the current at the point of contact.
Solid copper base plate (80 × 80 mm) The base plate is also made of pure copper, giving a strong mechanical mount and a continuous copper-to-copper electrical path to the down conductor. There is no joint between dissimilar metals, which reduces the risk of galvanic corrosion at the connection.
Excellent corrosion resistance Copper naturally forms a protective patina when exposed to air and moisture. Unlike steel-core or plated products, there is no thin coating that can chip, peel or wear away to expose a rusting core underneath. This makes pure copper arresters well suited to coastal areas, high-humidity regions and industrial sites with polluted air.
Long service life with minimal maintenance Because the material does not rust and has no coating to fail, a pure copper lightning arrester typically lasts for many years with only periodic visual inspection and connection checks.
Compliance with IEC 62305 SG Power's arresters are designed and manufactured in line with IEC 62305, the international standard covering lightning protection of structures. This helps consultants, contractors and project owners meet technical specifications and tender requirements.
Pure Copper vs Copper-Bonded vs GI Lightning Arresters
When buyers compare products across the market, they usually come across three main material types. Understanding the difference helps you choose the right arrester for your site.
| Feature | Pure Copper (99.9%) | Copper-Bonded / Copper-Coated | GI (Galvanized Iron) |
|---|---|---|---|
| Core material | Solid copper throughout | Steel core with thin copper layer | Steel with zinc coating |
| Conductivity | Highest | Good at surface, lower in core | Lower |
| Corrosion resistance | Excellent; no coating to fail | Good until copper layer is damaged | Moderate; zinc wears over time |
| Service life | Longest | Medium to long | Shorter in harsh climates |
| Best for | Critical sites, coastal and humid areas, long-life projects | General budget projects | Low-cost, dry-area installations |
| Initial cost | Higher | Medium | Lowest |
Copper-bonded arresters are popular because they are cheaper, but their performance depends on the thickness and quality of the copper layer. If that layer is scratched during handling or installation, the steel underneath can begin to corrode. A pure copper lightning arrester avoids this weakness completely, which is why it is often specified for hospitals, data centres, telecom towers, heritage buildings and other sites where reliability matters most. GI arresters remain the lowest-cost option for dry areas, and an ESE lightning arrester covers a far larger radius where one terminal must protect a wide roof.
Applications of Pure Copper Lightning Arresters
SG Power's pure copper lightning arresters are suitable for a wide range of structures, including:
Residential buildings – independent houses, villas and high-rise apartments
Commercial buildings – offices, malls, hotels, hospitals and schools
Industrial facilities – factories, warehouses, chemical plants and storage yards
Telecom towers and data centres – where sensitive equipment must be protected
Solar power plants – rooftop and ground-mounted solar installations
Railways and metro projects – stations, depots and trackside structures
Power and utility sites – substations, DISCOM installations and control rooms
Water tanks, chimneys and towers – tall structures with high strike risk
How a Pure Copper Lightning Arrester Is Installed
A correct installation is just as important as the quality of the arrester. A typical installation includes these steps:
Site assessment and risk analysis – The structure's height, location, roof area and use are assessed, ideally following the risk assessment method in IEC 62305.
Positioning the air terminal – The arrester is fixed at the highest point of the roof or structure so that its protection zone covers the area below.
Fixing the base plate – The copper base plate is securely bolted to the roof slab, parapet or mast.
Connecting the down conductor – A copper strip or tape is connected to the base plate and run down the side of the building by the shortest, straightest route.
Earthing – The down conductor is connected to a dedicated earthing pit with a suitable earth electrode and backfill compound to achieve low earth resistance.
Testing – Continuity and earth resistance are tested before the system is handed over, and then checked periodically.
SG Power also manufactures earthing electrodes, copper bonded earthing rods, backfill compounds, earth pit covers and LPS accessories, so you can source a complete, matched lightning protection and earthing system from one supplier.
Why Choose SG Power as Your Pure Copper Lightning Arrester Manufacturer and Supplier?
Choosing the right pure copper lightning arrester manufacturer and suppliers affects both safety and long-term cost. Here is why customers across India trust SG Power:
Genuine 99.9% pure copper – We use high-purity copper for the rod, spikes and base plate, not a thin plated layer.
Standards-based design – Products are designed and manufactured in compliance with IEC 62305.
Clear technical data – Every model comes with a defined model number, dimensions and drawing for easy approval by consultants.
Custom sizes – Diameters, lengths and base plate sizes can be supplied to suit project specifications.
Complete earthing solutions – One source for lightning arresters, earthing electrodes, GI electrodes, backfill compound and earth pit covers.
Project experience – We supply to railway, metro, DISCOM, renewable energy and engineering service projects.
Pan-India supply – As an established pure copper lightning arrester supplier, we serve customers across India from our Noida office.
Buying Tips: How to Choose the Right Pure Copper Lightning Arrester
Check the copper purity – Ask for 99.9% pure copper and confirm whether the rod, spikes and base plate are all solid copper.
Match length and diameter to the structure – Taller or larger buildings may need longer arresters or multiple air terminals.
Confirm the standard – Look for compliance with IEC 62305 (and any IS standard specified in your tender).
Ask for drawings and datasheets – A reliable manufacturer provides technical drawings and model-wise specifications.
Plan the full system – The arrester only works properly with a good down conductor and a low-resistance earthing pit.
Pure Copper Lightning Arrester Price
Pure copper is priced against the copper content, so the rate moves with rod diameter, length, base plate size and the LME copper price on the day we quote. Send the model number from the selectors above, or your drawing and quantity, for a dated direct-from-manufacturer quotation.
| Model | What Sets the Price | Price |
|---|---|---|
| CuLA14SG050M (standard) | 14 mm rod, 500 mm length, 80 × 80 mm copper base plate | Price on request |
| Other diameters and lengths | Rod diameter, total length and copper weight | Price on request |
| Custom base plate | Pure copper or HDPP base plate, size to drawing | Price on request |
* Prices are indicative. For the latest price, contact SG Power.
Frequently Asked Questions
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Request a Pure Copper Lightning Arrester Quote
Call +91 8929722150 or email enquiry@sgpower.co.in with the model number, quantity and delivery location. We supply pure copper lightning arresters to projects across India from Noida, Uttar Pradesh.