Complete lightning protection systems, designed to the level your risk assessment demands
Air termination, down conductors, bonding, earthing and coordinated surge protection — manufactured, designed, installed and tested by DFMHUB to IS/IEC 62305 and NBC 2016 Part 8.
What a compliant lightning protection system contains
A cloud-to-ground strike delivers up to 200 kA in microseconds. A compliant LPS gives that current a deliberate path so it never travels through reinforcement, cable trays, plumbing or people.
Under IS/IEC 62305 an installation is made of four parts. The air termination system intercepts the strike using rods, mesh conductors or catenary wires positioned by rolling sphere analysis. The down conductor system carries the current to earth by the shortest route, with spacing set by protection level. The earth termination system disperses it into the soil, sized from measured resistivity. Finally, equipotential bonding and SPDs stop dangerous potential differences and transients inside the building.
DFMHUB delivers all four as one scope. Every ARK Make component is type-tested to the relevant part of IEC 62561, so the material submittal, the design calculation and the test report all point to the same standard — which is what auditors, insurers and fire authorities actually check.
The codes every ARK Make system is built to
IS/IEC 62305 (Parts 1-4)
Risk assessment, physical damage protection, and protection of electrical & electronic systems.
IS 3043:2018
Indian code of practice for earthing — electrode sizing, resistance limits and soil resistivity method.
IEC 62561 (Parts 1-7)
Type-testing of LPS components: connections, conductors, electrodes, enhancing compounds and test links.
NBC 2016, Part 8
National Building Code requirements for lightning protection of buildings in India.
IEC 61643 / IS 16571
Selection and coordination of surge protective devices for low-voltage systems.
NFPA 780 & NF C 17-102
International practice for LPS installation and early streamer emission terminals, where specified.
12 ARK Make lightning protection components
Every item is manufactured or sourced against IEC 62561 type-test evidence and supplied with batch traceability.
ARK Air Terminals (Franklin Rods)
CU / AL / SS 16-25 MM DIAARK Mesh Conductors & Tapes
25X3, 25X6, 32X8 MMARK Down Conductors
CU TAPE / BARE CU / ALARK DC Tape Clips & Saddles
SS / CU / PVC-LINEDARK Test Link / Inspection Joints
CU BIMETAL, IP65 ENCLOSUREARK Exothermic Weld Kits & Moulds
GRAPHITE MOULDS, 25-250 GARK Bimetallic Connectors
CU-AL FRICTION WELDEDARK Early Streamer / ESE Terminals
OPTIONAL, NF C 17-102ARK Lightning Event Counters
6-DIGIT, IP66ARK Surge Protection Devices
TYPE 1 / 2 / 3, IEC 61643ARK Equipotential Bonding Bars
CU BAR, 10-20 WAYARK Earth Pit Chambers & Covers
POLYMER / RCC / CI, HEAVY DUTYLightning protection by city
City-specific soil, storm data and installation teams.
Lightning protection — frequently asked questions
What is a lightning protection system and what does it actually do?
A lightning protection system intercepts a strike at a designed point, conducts the current safely down the outside of the structure, and disperses it into the earth. It does not prevent lightning — it gives the current a controlled low-impedance path so that the building fabric, occupants and electrical systems are not part of it.
How is the protection level decided?
By the IS/IEC 62305-2 risk assessment. Strike density, collection area, occupancy, internal systems and consequential loss are calculated and compared with the tolerable risk of 10⁻⁵. The result is Lightning Protection Level I to IV, which fixes rolling sphere radius, mesh size and down conductor spacing.
What is the difference between the rolling sphere, mesh and protective angle methods?
Rolling sphere is the general method valid for any geometry — a sphere of 20 to 60 m radius is rolled over the structure and every touch point needs protection. The mesh method suits flat roofs, applying a 5x5 m to 20x20 m conductor grid. The protective angle method suits small, simple structures and masts within height limits.
How many down conductors does a building need?
Spacing is set by protection level: 10 m for LPL I, 10 m for LPL II, 15 m for LPL III and 20 m for LPL IV, measured around the perimeter. Every down conductor takes the shortest, straightest route and terminates at its own earth electrode with a test link.
Are ESE or early streamer terminals acceptable in India?
IS/IEC 62305 is based on conventional systems. ESE terminals to NF C 17-102 are used where a project specification calls for them — typically open yards, tank farms and large stadium roofs — and DFMHUB supplies them, but the earthing and bonding must still meet IS/IEC 62305 and IS 3043.
Does a lightning protection system protect electronic equipment?
Only in combination with coordinated surge protection and equipotential bonding. External LPS handles the direct strike; Type 1, 2 and 3 SPDs plus a common bonding network control the conducted and induced transients that actually destroy electronics.
How often must the system be inspected?
IEC 62305-3 recommends annual visual inspection with full testing every one to two years for LPL I and II systems, and after any lightning event, structural modification or new rooftop equipment installation.
Send your drawings. Get a compliant system design back.
Share roof plans, structure height and soil data — our team returns a risk assessment summary, air termination or earthing layout, bill of materials and a fixed-price proposal.
- Risk assessment to IS/IEC 62305-2
- IEC 62561 type-tested ARK Make components
- Installation, testing and documented handover