Frequently Asked
Questions

Chemical earthing is a modern, maintenance-friendly earthing method that uses a hollow electrode filled with a hygroscopic backfill compound. The compound continuously absorbs moisture from the surrounding soil, lowers the electrode-to-soil contact resistance, and maintains stable low earth resistance even in dry or rocky terrain. Unlike conventional pipe or plate earthing, chemical earthing electrodes do not corrode rapidly and deliver consistent performance for 15–25 years with minimal maintenance. This makes chemical earthing the preferred choice for industrial plants, substations, and telecom sites across India.

A copper bonded earthing electrode is a steel-core rod coated with a molecularly bonded layer of pure copper, typically 250 microns thick. The steel core provides mechanical strength for deep driving into soil, while the copper exterior delivers excellent electrical conductivity and long-term corrosion resistance. Copper bonded electrodes meet UL 467 and IEC 62561 standards and are widely used in substations, industrial plants, data centres, and telecom infrastructure.

The primary differences are corrosion resistance, conductivity, and service life:

• GI (Galvanised Iron) electrodes are cost-effective and suitable for moderate-risk applications in dry or neutral soils, but are susceptible to corrosion in moist, acidic, or chemically aggressive environments. Typical service life is 8–15 years depending on soil conditions.
• Pure copper and copper bonded electrodes offer superior electrical conductivity, far greater corrosion resistance, and service lives of 20–40 years. They are the preferred choice for critical applications such as substations, data centres, hospitals, and coastal or chemically aggressive soil environments.

For most industrial and infrastructure projects, copper bonded or pure copper electrodes deliver a better total cost of ownership despite higher initial cost.

For industrial plants, we typically recommend a chemical earthing system using copper bonded electrodes with a high-performance backfill compound. This combination provides low and stable earth resistance, resists corrosion in industrial environments, and greatly reduces maintenance frequency. For high fault-current applications or large switchyard earthing grids, we design ring earthing systems using copper conductor grids interconnected with multiple chemical earthing pits, conforming to IS 3043 and IEC 62305.

Backfill compound (also called earthing compound or conductive filler) is a hygroscopic mixture packed around an earthing electrode to reduce soil resistivity and improve electrical contact between the electrode and the surrounding earth. A good backfill compound significantly lowers earth resistance, especially in high-resistivity soil types such as rocky, sandy, or laterite terrain common in many parts of India. Konnark's backfill compound is non-toxic, environmentally safe, and retains moisture effectively to maintain consistent low resistance across seasonal variations.

Electrode selection depends on several key factors:

• Soil resistivity — measured via a Wenner four-pin test
• Required earth resistance value — typically ≤1 Ω for substations, ≤5 Ω for industrial equipment, ≤10 Ω for general installations
• Fault current magnitude — determines conductor cross-section
• Soil chemistry — acidic, saline, or industrial soils require copper-based electrodes
• Available depth — rocky sites may need horizontal counterpoise grids

Our technical team provides free design assistance. Share your soil resistivity data and project scope and we will recommend the optimal electrode type, size, and earthing configuration.

Service life depends on electrode material and soil conditions. GI electrodes typically last 8–15 years. Copper bonded electrodes generally last 20–30 years. Pure copper electrodes and chemical earthing systems with quality backfill compound can deliver reliable performance for 25–40 years with periodic resistance testing and occasional backfill top-up. We recommend annual earth resistance testing per IS 3043 to ensure continued system integrity.

Solar power plants require a reliable, low-maintenance earthing grid because they operate in open-field environments with wide soil resistivity variation. We recommend copper bonded chemical earthing electrodes combined with a horizontal copper conductor ring grid interconnecting all module mounting structures, inverter stations, and transformer earthing points. This approach conforms to IEC 62305 and CEA regulations and ensures personnel safety and equipment protection for the 25-year life of the solar asset.

Telecom towers demand ultra-low earth resistance, typically ≤5 Ω or better, to protect sensitive electronic equipment and ensure uninterrupted network operation. We supply chemical earthing systems with copper bonded electrodes that achieve these values even in challenging soil conditions. Our solutions are installed at telecom tower sites across India by major operators and meet TRAI and DOT infrastructure guidelines.

Substation earthing systems must safely dissipate large fault currents and protect personnel from step and touch potentials. For substations, Konnark supplies:

• Copper bonded earth rods for deep-driven grid electrodes
• Pure copper strip and conductor for horizontal grid construction
• Chemical earthing pits at grid nodes
• Backfill compound for consistent low resistance
• Earthing accessories including clamps, connectors, and inspection chambers

Hospitals and data centres are safety-critical facilities requiring clean, low-noise earth connections to protect life-critical and sensitive electronic equipment. We recommend an isolated earth system using pure copper or copper bonded electrodes with dedicated earthing pits for IT and medical equipment, separately maintained from structural and lightning earth networks. Earth resistance values of ≤1 Ω are typically specified for these facilities.

IS 3043 recommends earth resistance be measured using the Fall-of-Potential (three-terminal) method at installation and thereafter at regular intervals. For industrial and critical installations, annual testing is recommended. For general commercial buildings, testing every two to three years is typical. Testing should be performed during the dry season when soil resistivity is highest to verify the system meets its design resistance value under worst-case conditions.

Earthing (or grounding) is the process of providing a low-resistance electrical path between an installation and the earth. A correctly designed earthing system protects personnel from electric shock, limits equipment damage during fault conditions, ensures proper operation of protective relays and circuit breakers, and provides a stable reference voltage for the electrical network. It is mandatory for all electrical installations under the Indian Electricity Rules and IS 3043.

IS 3043 is the Bureau of Indian Standards code of practice for earthing. It specifies electrode types, installation methods, required earth resistance values, testing procedures, and maintenance requirements for electrical earthing systems in India. It applies to all AC electrical installations — residential, commercial, and industrial. Compliance with IS 3043 is referenced in tenders, statutory approvals, and insurance requirements for electrical infrastructure across India.

Maintenance-free earthing refers to chemical earthing systems that use a self-sustaining hygroscopic backfill compound around the electrode. The compound continuously absorbs atmospheric moisture, maintains low soil resistivity around the electrode, and does not require the periodic water-pouring that conventional GI pipe earthing needs. This significantly reduces operational maintenance requirements and is the preferred earthing method for industrial plants, substations, telecom towers, and solar power projects.

For residential buildings, a GI or copper bonded chemical earthing electrode with backfill compound is the standard recommendation. Earth resistance should not exceed 5 Ω for household installations per IS 3043. Chemical earthing is preferred over conventional pipe or plate earthing for its longer service life and minimal maintenance. For high-rise residential buildings, a ring earthing arrangement with multiple electrode pits is typically designed for better fault current distribution.

Yes. Konnark is a supplier of Solar PV Modules — we do not manufacture solar panels. We supply a range of high-efficiency solar PV modules suited for residential rooftop, commercial rooftop, and utility-scale ground-mount projects. Our portfolio includes both P-Type (PERC) and advanced N-Type (TOPCon / HJT) modules in monocrystalline formats. We offer both DCR (Domestic Content Requirement) and non-DCR certified modules to support government-tendered solar projects qualifying under MNRE schemes.

No. Konnark does not manufacture solar panels. We are a supplier of Solar PV Modules — sourcing and supplying high-quality modules from established manufacturers for rooftop and utility-scale projects across India. Our primary manufacturing activity covers earthing products and lightning protection products.

DCR (Domestic Content Requirement) modules are manufactured using solar cells produced in India, making them eligible for government schemes such as PM Surya Ghar, the National Solar Mission, and state government tenders that mandate the use of Indian-made components. Non-DCR modules may use cells sourced globally, typically offering more flexibility in specifications and pricing, and are widely used in commercial and industrial solar projects without government subsidy requirements. If your project requires MNRE or DISCOM approval with DCR compliance, please specify this when requesting a quotation.

N-Type solar modules offer several advantages over conventional P-Type PERC modules:

• Higher efficiency — N-Type TOPCon and HJT cells achieve 22–25% module efficiency versus 20–21.5% for PERC
• Lower temperature coefficient — better power output in high-temperature Indian conditions
• Negligible LID (Light-Induced Degradation) — maintains output more consistently over the first years of operation
• Better low-light performance — generates more energy on hazy or cloudy days
• Lower annual degradation rate — typically 0.4% per year versus 0.5–0.55% for PERC

For solar projects with premium land costs or high energy yield targets, N-Type modules offer a compelling total-lifetime return.

Yes. Our solar PV modules are backed by a 12-year product workmanship warranty and a 25–30 year linear power output warranty depending on the module series. Power output warranties guarantee that the module will retain at least 80–87% of its rated power at the end of the warranty period, subject to standard degradation rates. Full warranty terms are provided with each product data sheet and order documentation.

Yes. We cater to residential rooftop (1–10 kWp), commercial and industrial rooftop (10 kWp – 1 MWp), and utility-scale ground-mount solar plants (1 MWp and above). Our technical team can advise on module selection, earthing requirements, and lightning protection design for any project scale. Bulk pricing and staggered delivery schedules are available for large projects.

Rooftop solar installations require earthing of the module mounting structures, inverter chassis, and DC array negative conductor (for ungrounded systems, per CEA and IEC 62548 requirements). A dedicated copper bonded or chemical earthing electrode should be installed with earth resistance not exceeding 5 Ω. The earthing conductor must be sized for fault current capacity. Konnark supplies electrodes, backfill compound, and earthing accessories specifically suited for rooftop solar EPC projects.

Yes. Ground-mount and large rooftop solar plants are particularly vulnerable to lightning because the array structures are often the tallest objects in open-field environments. A well-designed lightning protection system (LPS) is essential to protect the inverters, junction boxes, transformers, and module strings from direct strikes and induced surges. Konnark supplies ESE lightning arresters, conventional LPS components, and surge protection devices (SPDs) suitable for solar power plant protection, conforming to IEC 62305 and IEC 61643.

Surge Protection Devices (SPDs) protect sensitive electronics from transient overvoltages caused by nearby lightning strikes, switching events, or utility disturbances. For solar plants, SPDs conforming to IEC 61643 are recommended on both the DC string side (at combiner boxes) and the AC inverter output side. SPDs work in conjunction with the structural lightning protection system — they cannot replace it. Konnark can advise on SPD selection and coordination as part of a complete solar protection package.

You can request a quotation by visiting our Contact page and filling in the enquiry form, by emailing us directly, or by calling our sales team. Please share your product requirements, quantities, delivery location, and any applicable project specifications. We typically respond with a detailed quotation within 24–48 business hours.

Yes. Konnark dispatches earthing and lightning protection products from our Pune facility to all major states across India. We have established logistics partnerships that ensure reliable PAN India delivery, including to Tier 2 and Tier 3 cities and remote project sites. We have supplied products to customers in Maharashtra, Gujarat, Rajasthan, Telangana, Karnataka, Tamil Nadu, Delhi NCR, and many other states.

Yes. Konnark Earthing Solutions exports products to international markets. We handle export documentation, EXIM compliance, and freight coordination for international customers. If you are located outside India and require earthing electrodes, lightning protection systems, or backfill compound, please reach out to our export desk with your product specifications and delivery port details and we will prepare an export quotation with CIF or FOB pricing as required.

For standard products from stock, we typically dispatch within 2–5 business days after order confirmation. For customised or non-standard configurations, lead times range from 7–21 business days depending on product type and quantity. For large-volume or scheduled project supply, we agree on a delivery plan with the customer at the time of order. Please discuss your delivery timeline with our sales team when raising your enquiry.

Absolutely. We regularly execute bulk supply orders for large industrial, infrastructure, and government projects. We offer volume pricing, staggered delivery schedules to match your construction programme, and dedicated account management for ongoing EPC relationships. For project-specific supply agreements, please contact our key accounts team.

You can reach us through the following channels:

• Phone: +91 89830 38336
• Email: konnarkearthing@gmail.com
• Website enquiry form: Contact Us page
• Address: Sr No 134, Dalviwadi, Nanded Phata, 1068, Sinhgad Rd, Pune, Maharashtra 411041

Our sales and technical teams are available Monday to Saturday, 9:00 AM to 6:30 PM IST.

Yes. While our manufacturing and head office is in Pune, we serve customers throughout Maharashtra, including Mumbai, Nashik, Aurangabad, Nagpur, Solapur, Kolhapur, and all other districts. Maharashtra is our primary market, and we maintain strong distribution and logistics capabilities to serve customers across the state with short lead times.