Lightning rods and accessories - Aplicaciones Tecnológicas
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Air terminals and accessories, conductors and earthing components for lightning protection installations

pararrayos y accesorios, Air terminals and accessories, Para-raios e acessórios, Paratonnerres et accessoires
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Air terminals and accessories, conductors and earthing components for lightning protection systems

Lightning is one of the most naturally destructive phenomena. There is no device capable of preventing the formation of lightning, but it is possible to minimize its effects with a lightning protection system.
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Which are the elements that compose an integral lightning protection system?

Air termination system
Air terminals (Early Streamer Emission (ESE) air terminals or Franklin rods and meshed conductors

The lightning air terminal is an essential piece of the lightning protection system. It must be the point of controlled impact of a discharge, so as to provide the lightning current with a path to ground without damaging the protected structure.

ESE Air Terminals are characterized by emitting a continuous upward leader before any other object within their protection radius. The DAT CONTROLER® line from Aplicaciones Tecnológicas DAT Controler Plus and DAT Controler Remote) have passed all tests according to the regulations and have the best operational guarantees. In fact, Aplicaciones Tecnológicas S.A.’s DAT CONTROLER® lightning rods are the only ones in the world with the strick N certification from AENOR.

Protection by Franklin rods and meshed conductors consists in distributing and dissipating the discharge current of lightning through a network of down conductors and earthing systems. The installation, sections and materials must comply with the provisions of the standards that define this type of system (series IEC 62305, IEC 62561).

ESE air terminals

Down conductors

The aim of the down conductors is to drive the lightning current from the air termination system to earth. They require connection and fixing accessories.

Conductors

Connection and fixing
accessories

Essential components for connecting and fixing the conductors and other elements of the installation. They should reist the lightning electrodynamic effects, the corrosion and other environmental effects.

Rods supports
Anchorages for masts
Clip supports
Masts & towers
Tape clips
Other accesories

Earthing and other measures that minimize damages caused by lightning (equipotential bonding, surge protection)

Earthing conducts and disperses the lightning current to the ground. These measures, together with the equipotential bonding, prevent physical damage to structures. However, the effects of lightning can also enter through the service lines themselves. To prevent damage to electrical and electronic equipment surge protection devices are installed.

Earth electrodes
Equipotential bonding

How to achieve a good earthing for a lightning protection installation

In order to obtain an effective grounding, it is essential to achieve a low ground resistance, using conductors with a high resistance to corrosion and a suitable section to transport the expected current. It is also advisable to bond the connections of said conductors by exothermic or aluminothermic welding Apliweld® Secure+.

Other determining factors when designing an earthing system include:

  • The resistance should be measured regularly making it necessary to install an earth inspection pit. Aplicaciones Tecnológicas provides these inspection pits.
  • The soil humidity will reduce the earthing resistance.
  • Earthing enhancing compounds reduce the soil resistivity.
  • Buried electricity and gas installations should be identified in order to respect the security distances for each.
  • Buried pipes and water tanks should be identified in order to equipotentially bond them with the earth system.

To obtain a suitable earth resistance in earthing systems, special electrodes should be used for low-conductivity soils – enhanced electrodes, such as APLIROD dynamic electrodes or graphite electrodes. Deep electrodes or ring conductors may be used.

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AIR TERMINALS AND ACCESSORIES, CONDUCTORS AND EARTHING COMPONENT
FOR LIGHTNING PROTECTION SYSTEMS

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