Earthing & Lightning Protection System
Lightning protection systems are the modern development of the innovation pioneered by Benjamin Franklin.Today, lightning protection systems are in use on thousands of buildings, homes, factories, towers, stadiums, public places and even the Space Shuttle’s launch pad.It is very much essential for electrical appliances & building safety and human safely as well to get rid of unwanted electrical hazards.We ABG is always ready to provide service when it comesto safety. Our years of experience in the design and installation of Earthing and lightning protection system allow us to deliver high quality goods with best customer service. For designing and installing the lightning Arrestors earthing system we follow the NF C 17-102, IEC 62 305-3,NFPA 780, BNBC 2006 and many more standards.
Our Main Goals
» A complete solution for all types of Electrical Earthing and LPS system
» Earthing and LPS system design and drawing
» Earthing and LPS system Testing
» Periodic maintenance and On-call services
Types of Lightning Protection Systems we offer
♦ Early streamer emission air terminal Standards: France: NF C 17-102 (September 2011 edition)
♦ Single rods air terminals Standards: IEC 62 305-3
♦ Meshed cages Standards: IEC 62 305-3
♦ Stretched wires Standards: IEC 62 305-3
Early streamer emission air terminal (ESEAT)
This is the advanced technology for lighting protection. An Early Streamer Emission air terminal is an external lightning protection system.OPR air terminals are especially effective for the protection of classified industrial sites, administrative or public buildings, historical monuments and open-air sites such as sports grounds.This technology has huge demand across the globe and are widely used.
During a storm, when the propagation field conditions are favorable, the OPR first generates an upward leader. This leader from the OPR tip propagates towards the downward leader from the cloud at an average speed of 1 m/µs. The aim of the ESE air terminal is to become the point of discharge of the lightning in order to achieve a controlled impact without damage.
Lightning Protection System with an ESEAT is made of
→ an Early Streamer Emission Air Terminal and its extension mast
→ two down conductors, or in case of several ESEAT oneconductor per ESEAT
→ a connecting link or test joint for each down conductor to enabling the earth resistance to be verified
→ a protecting flat to protect the down conductor for the last two meters above ground level
→ an earth designed to dissipate the lightning currents at the bottom of each down conductor
→ an equipotential bonding between each earth and the general earthing circuit of the structure. this one must be disconnected
→ protection measures against injuries to leaving being due totouch and step voltages (e.g. warning notice).
Our ESE type protection system products
ESE Air Terminal
We are offering OPR 30, OPR 45 & OPR 60 from world renowned brand ABB. These OPR are earned through maintaining consistently high manufacturing quality.
Lightning stroke counter
Lightning stroke counter and recorder is used to store date and time of the impact as well as lightning current values.
Single rods air terminals
This type of protection is especially recommended for radio stations and antenna masts when the area requiring protection is relatively small.
A single rod air terminal protection is made up of:
– a rod lightning air terminal and its extension mast
– two down conductors
– a connection link or test joint on each down conductor to check the conductor earth resistance
– a protecting flat to protect the down conductor for the last two meters above ground level
– an equipotential bonding between each earth and the general earthing circuit of the structure; this one must be disconnect-able
– protection measures against injuries to leaving being due to touch and step voltages (e.g. warning notice).
Lightning protection system with Meshed cages
This principle consists of dividing up and more easily dissipating the lightning current by a network of conductors and earths.A meshed cage installation has multiple down conductors and consequently provides very effective protection for buildings that house equipment sensitive to electromagnetic disturbance.This is because the lightning current is divided among the down conductors and the low current circulating in the mesh creates very little disturbance by induction.
A meshed cage installation is made up of:
– devices to capture the atmospheric discharges consisting of strike points
– roof conductors
– down conductors
– protection measures against injuries to leaving being due to touch and step voltages (e.g. warning notice)
– an equipotential bonding between each earth and the general earthing circuit of the structure; this one must be disconnectable.
Lightning protection system with Stretched wires
This system is composed of one or several conductor wires stretched above the protected installation. The protection area is determined by applying the electro-geometrical model.The conductors must be earthed at each end.
This technology is used to protect ammunition depots and as a general rule in circumstances where the site cannot be protected by using a building structure to support the conductors that convey the lightning currents to the earth.