The principle of operation of an Gravity terminal lightning arrester is to create an upward streamer earlier than conventional air terminals or other objects on the earth. Gravity GLPS does this by collecting and storing ground charge during the initial phase of a thunderstorm development and emits strong and consistent upwards streamers to intercept leaders. These streamer from the finial tip earlier than other competing structural points, The Gravity GLPS terminal becoms a preferd Point for the capure of the lightning discharge within the protected area.

 

Features Of ESE Lightning Arrester

• Meets NFC 17-102 & UNE 21186 Standards.
• Tested to with stand multiple 40kA Impulses.
• High Quality Anti-Corrisive and Conductive Coating.
• Wind Resistance.
• 5 Years Replacement Warranty.

 

 

 

Triggering Time Gain

The Triggering Time L T (ps) defined as the gain at the spark over instant obtained with an ESE terminal compared with a simple rod terminal exposed to the same conditions.

Different Modles of Gravity GLPS Lightning Arrester

• Gravity20
• Gravity40
• Gravity60

GLPS 20
Weight=3.2 Kg.
Dia = 50mm
Length = 350mm

GLPS 40
Weight= 4.6 Kg
Dia 65mm
Length = 350mm

GLPS 60
Weight= 6 Kg.
Dia = 75mm
Length = 350mm

 Triggering Time Distance Gain

According to NF C 17-102, the triggering time instance gain  T is associated with a triggering time distance gain Delta L.

L = V. T where:

L (m): gain in lead distance of the spark over distance.

V) m/us) : the average speed of the downward tracer

T(us): gain inm spark over time of the upward leader

Lightning Protection of Structures

As a general rule for protection, the object to be protected shall be in the Radius of Protection of a Lightning Protection System whose electromagnetic characteristics are compatible with the capability of the object to withstand stress causing the damage. (physical damage, failure of electrical and electronic systems due to over-voltages.

Protection to reduce physical damage and life hazard: The functions of the external lightning arrester are

• To intercept a lightning flash to the structure (with an air-termination system).
• To conduct the lighftning current safely to earth (with a down-conductor system).
• To disperse it into the earth (with an earth- terminations system) and equalizer potential between othe earth – termination systems on site (with an isolation spark gap)

Four classes of LPS (I, II, III, IV) are defined as a set of construction rules.