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Prevent lightning strikes on your boat. Sail safe.
Lightning Threat on Boats
Boats are the sharpest and highest objects on water. Depending on the size and structural properties, the risk of getting hit by a lightning strike varies. Still, if you are the only one under a thunderstorm cloud at that moment, you are most likely to experience lightning damage on your boat.
During a storm, ground charges (charges on water) accumulate on the boat, climb up to the top of the mast where wind sensors are located. As these ground charges are emitted toward the oppositely charged streamers of cloud; two charged groups meet and form a conductive channel between the cloud and the mast, which is called a “lightning strike”.
All current inside cloud flows through this channel and reaches the water through the mast and boat body while damaging all sensors on the mast; destroying antennas, radios, and cables; damaging batteries inside, and finally breaking down the engine and causing a fire.
While discharging from the bottom, lightning current can damage the body of the boat and leave holes underneath.
The Lightning Rod "Protection"
Sail masts are usually made of metals such as aluminum and/or lightweight steel, and they are the most conductive and highest structures on the boat. Even if you have a wooden mast, it is a high and sharp object and still conductive due to salty water particles on its surface. Masts are the primary targets of lightning strikes and must be protected against direct and indirect effects of lightning.
Lightning arresters are made to emit more charges on themselves to attract lightning before any surrounding object. With the use of a lightning arrester on a boat mast, the arrester collects all lightning strikes to transfer the lightning current to the grounding system safely.
However, the lightning current must reach the ground through the shortest and fastest way, which is still the mast itself. Even though a conductor cable is installed between the lightning arrester and the grounding system, lightning current prefers to follow larger surfaces instead of the conductor cable and flows through the mast surface.
Using a lightning arrester on a boat does not provide a solution, and all sensors, electronics, and the engine can still be damaged by lightning current. Even worse, all people on the boat are at serious risk of getting hit by lightning.
Lightning must be kept away from boats!
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EvoDis Lightning Prevention System
The point where lightning hits depends on the volume of ground charge accumulation on a body and the emission point at the top. Lightning strikes at that particular point of emission, and the lightning current runs down to the ground through the body of the structure.
EvoDis® Lightning Prevention System dissipates the ground charges on mast through thousands of tiny sharp points and blocks the emission of these charges by keeping the surrounding electric field strength below the threshold level. This process makes the protected boat "invisible" to lightning; prevents any damage to electronics and sensors, and saves the boat.
EvoDis® Units are installed directly on the mast without the need for a conductor or any additional grounding system. The Units are mounted on mast tops using either the vertical Elevation Offset or the Flat Base mounting adapters. EvoDis Lightning Prevention System does not require any maintenance after installation, and all EvoDis® Units come with a 10-year product warranty.
EvoDis® Lightning Prevention System is the first and only lightning protection solution to achieve 100% success in high-voltage laboratory and field tests. EvoDis® has been applied to thousands of lightning-prone towers, masts, and poles worldwide, and none of these structures have been hit by lightning for the past 18+ years of applications.
Best way of lightning protection is to stay away from the lightning.
EvoDis® Lightning Prevention System keeps lightning away.
You are now one step closer to being free of lightning!
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