ESE Lightning Arrestors

Early Streamer Emission arrestors with extended protection radius for large open sites

ESE (Early Streamer Emission) lightning arrestors generate an upward leader marginally earlier than a conventional Franklin rod, which — under the NF C 17-102 design framework — allows a single mast to cover a larger protected zone than a Franklin equivalent of similar height. ESE arrestors are typically specified for open industrial yards, solar farms, large warehouses, telecom sites, and stadia where covering a wide footprint from a single mast simplifies the down-conductor and earthing layout.

Norton Power supplies ESE arrestors in multiple protection levels per NF C 17-102, with stainless steel tips and weatherproof electronics housings designed for Indian climate conditions. Each unit ships with a calibration certificate and is compatible with standard mast-mount hardware and down-conductor systems.

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Features

Multiple ESE delta-T variants per NF C 17-102 (15 µs, 25 µs, 40 µs, 60 µs)
Stainless steel emission tip with weatherproof electronics housing
No external power required — self-powered by ambient field
Calibration certificate supplied with every unit
Compatible with standard mast and down-conductor hardware
Suitable for all Indian climate conditions including coastal installations

Why choose Norton Power

Larger protection radius from a single mast vs conventional Franklin rod of same height
Simplifies layout on open sites — fewer masts, fewer down conductors
Cost-effective for wide-footprint coverage where conventional design would need multiple masts
Self-powered — no batteries, no scheduled maintenance for the trigger unit
Wide acceptance under NF C 17-102 for industrial and infrastructure projects in India

Specifications

Design Standard	NF C 17-102:2011
Delta T Options Us	15, 25, 40, 60
Tip Material	AISI 316 stainless steel
Housing	UV-stable, weatherproof composite
Power	Self-powered (no external supply)
Operating Temperature	-20°C to +70°C
Mounting	Standard 1.5"/2" threaded mast adapter

Standards compliance

NF C 17-102:2011IEC 62305 (reference)

Applications

Solar PV plants and renewable energy farms

Industrial yards and large open work sites

Stadia, exhibition grounds, and open-air venues

Telecom towers and broadcast facilities

Petrochemical sites with large footprint exposure

Warehousing and logistics hubs

Models & variants

Frequently asked questions

ESE vs conventional Franklin arrestor — which should I use?

Conventional Franklin rods are widely accepted under IEC 62305 and well-suited to most buildings and substations. ESE arrestors are designed under NF C 17-102 and are typically chosen for large open sites where the wider protection radius from a single mast reduces installation complexity and cost. The right choice depends on site layout, height available for the mast, and which standard your project specifies.

Does an ESE arrestor need an external power supply?

No. Norton Power ESE arrestors are self-powered — they draw the small amount of energy needed from the ambient atmospheric electric field. There are no batteries to replace and no AC supply to provision.

How is the protection radius determined?

Per NF C 17-102, the protection radius depends on the arrestor’s delta-T rating, the protection level chosen (I, II, III, or IV), and the mast height. Share your site footprint and intended mast height — we will compute the radius and recommend the right delta-T variant.