These 3 main parts are the components of the lightning protection system.
This conductor will usually run outside the structure.Each fixing should allow an eventual conductor dilatation.Bend radius have to be inferior to 0.2 meters.Metalli-cal masses situated in the zone of separation calculated beforehand will be interconnected equipotentially to the lightning conductor.Each down conductor will be equipped at the bottom with a control junction and a 2 meter-high mechanical protective tube.
The capturing device with its supporting mast and fixings. .The down conductor composed of one or several tin-ned copper tape with section in compliance with stan-dards in force,designed to flow the lightning current of the lightning conductor to the earthing system.
The earthing system with an adapted form in com-pliance with standards in force has for aim to diffuse the lightning current to the ground.An inspection pit will be installed to do the equipotential connection with the nearest electrical earth netword of the building. Installation quality of a lightning system is an impor-tant element ofr the efficiency of a lightning protection system. For each installation and in most of cases it will be bet-ter to start with the installation of the earthing sys-tems,then as direct as possible channels of each down conductor,then finish with the lightning conductor and roof circuit installation.