Selection according to lightning protection zones concept (LPZ).

SPDs are selected and installed in accordance with the requirements of CEI EN 62305 and CEI 64-8/4 443
and 64-8/1 131. They are installed at the origin of low voltage systems, in Main Distribution Boards (MDB) and
in Sub Distribution Boards (SDB).
To understand the logic that determines the choice of protection required during the planning phase, it is necessary to isolate the system and equipment in lightning protection zones (LPZ) and evaluate the impulse voltage rating for the electrical and electronic equipment located in each zone.
Their organization is ascending, so in areas with greater numbers less interferences are present.
The progressive attenuation of conducted electromagnetic inteferenze is achieved through the installation of SPD, coordinated with each other energetically and in tension. SPDs are installed in the interface points of the various LPZ.
The objective is to have electrical and electronic equipment compatible with the electromagnetic interference level present in it within each LPZ. Doing so it will guarantee the integrity of the equipment and their service continuity.


Classification of LPZs

LPZ OA Zone exposed to the full intensity of the electromagnetic impulse and lightning induced current.
LPZ OB Zone exposed to the full intensity of the electromagnetic impulse but not the full lightning inducted current.
LPZ 1-2-3 Zones characterized by a progressive reduction to the electromagnetic impulse and the lightning induced current.

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Introducing the range, ZOTUP offers to the market an advanced solution for the protection against lighting strike in high conductive environments.
The growing need to protect outdoor electrical systems requires the surge arrester to maintain unchanged its electrical and insulating characteristics.
New materials and manufacturing solutions have enabled the range ZOTUP to achieve pollution degree 3, frontier of applications in high conductive environments in low voltage systems.



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