Products

Saint-elme Active 2D Lightning Conductor



Saint-elme Active 2D Lightning Conductor
Principal and Operating

A first device, named Impulse device stores the electrostatic energy present in the atmosphere at the approach of a stormy cloud and releases the excitation of the ascending discharge at the right time.

A second device, named Power device, collects and stores the wind and / or the solar energy in several strong power capacitors. The Saint Elmo lightning conductor is in this way permanently pre-loaded of an important energy which enables him to support the propagation of the ascendant tracer.

Close to the storm activity, an integrated sensor measuring the surrounding electric field value, releases the impulse device like most of usual Early Streamer Emission systems. Those lightning conductors almost immediately reverse the polarity of their head, creating a sudden amplification of the electrical field.

The innovation of Saint Elmo Active2D lightning conductor comes from the use of a second integrated sensor which measures the intensity of the electric discharge current, which is formed on the lightning conductor's head. When the downward leader enters in the protection area of the lightning conductor, the measured current strongly increases. As soon as this current is higher than the characteristic threshold, the power capacitors discharge and release the necessary energy for the propagation of the leader.

In this last device, the lightning conductor's head acts as a capture device. Therefore, the head is electrically insulated from the ground.


Saint-elme Active 2D Lightning Conductor
Saint Elmo Active 2D Lightning conductor


The efforts which have been carried out until today to increase the radius of action of the lightning conductors were based mainly on the improvement of the excitation time of the upward leader. However, the effectiveness of a lightning conductor does not depend only on the excitation time of a leader to the rod but as well and above all of the capacity to propagate this leader on a large distance to capture the downward leader.

Fruit of many years of research, tests in laboratories and in situ, FRANKLIN FRANCE has developped a new revolutionary generation of lightning conductor and thus keeps its technology advance. The operating principle of the Saint Elmo Active2D consists, not only to initiate the upward leader, but moreover, provides enough energy to ensure its propagation until the junction with the downward leader.

The operating principle of the Saint Elmo Active2D consists, not only to initiate the upward leader, but moreover, provides enough energy to ensure its propagation until the junction with the downward leader.

Range of product Saint-elme Active 2D Range




Saint-elme Active 2D Lightning Conductor

Saint-elme Active 2D Lightning Conductor remote control tester


The Saint-Elme Active 2D lightning conductor can be tested on site, with is remote control tester (initial checking, periodic checking in compliance with the NFC 17-102 and decrees in force, maintenance, ...)

Active 2D remote control tester use the communication by Radio waves, and create any electromagnetic perturbation.


Saint-elme Active 2D Lightning Conductor

Saint-elme Lighting Conductors


The operating principle of the Saint-Elme® lightning conductor is to create free charges (ionized particles and electrons) in the air surrounding the lightning conductor and to create, within a cloud - ground electric field, a channel of high relative conductivity constituting a preferential path for lightning.

Free charges are created by the corona effect by applying on the Saint-Elme® lightning conductor's ionized point(s) the voltage supplied by cells of piezo-electric ceramics (lead zirco - titanate), their feature is to produce a very high voltage by simply modifying the applied pressure.

The Saint-Elme® lightning conductor is therefore equipped with a mechanical device that transforms the stress resulting from the wind action on the lightning conductor into a pressure stress on the piezo - electric cells. The voltage therefore produced is applied, through the high voltage cable that runs inside the lightning conductor's support pole, on the ionized point(s) to create, by corona effect, free charges. Then, these charges are expulsed, by the Venturi system, from the lightning conductor's head, profiled on purpose.




Saint-elme Active 2D Lightning Conductor

Lightning Counter


Impact Controller 1 kA to 100 kA, Conformity test carried by LCIE

The impact controller or lightning counter is designed for detecting and counting lightning strikes received by structures with lightning conductor. It is fitted in general to a down conductor.

The information received by the controller can be used for spesific maintenance of the equipment.It is totally autonomous and does not require ant external power supply. It is delivered with 2 collars AFJ0819RL.

Counter compulsory for protected sites (Decree of the 28 of January of 1993), recommended for expertise and insurance companies.




Saint-elme Active 2D Lightning Conductor

Control Jucntions


NF C 17-100 and NFC 17-102 standards:
A control junction must be inserted on each down conductor to allow disconnection from its earth terminal. The 2F control junction, featuring very low impedance and perfect conductivity, is designed for easy installation and inspection



Saint-elme Active 2D Lightning Conductor

GIM Grounding Improvement Material


GIM Ground Improving Material is an earthing backfill compound consisting of highly conductive materials, which increase the earthing system's efficiency .It is most useful for area with high soil resistance and also when the probability of erosion due to the flow of water exists.