TSTLP SMT-ESE40 controlled ese air terminal for lightning protection

• Special Technical Parameters

• SMT-ESE40 Radius Protection as per different protection levels

For each of the lightning protection levels, a minimum current level to be protected against has been determined (selected). Table 5 details these current levels, together with probability percentages that lightning may be greater than these levels. For example, Lightning Protection Level I positions terminals such that 99% of all lightning flashes are intercepted (all those of 3 kA or greater). There is only a 1% probability that lightning may be smaller than the 3 kA minimum, and may not be close enough to an air-terminal to be intercepted. It should be noted that flashes of less than 3 kA are rare, and typically would not be expected to cause damage to the structure. Protection greater than Lightning Protection Level I (99%) would require significantly more material, is not covered by the standard and generally is not required for commercial construction.

Minimum current levels (related to interception efficiency) for lightning protection levels 1 to 4

The lower lightning protection levels (LPL 2 , 3 & 4) each increase the air terminal spacing, reducing their ability to capture smaller lightning flashes, thus reducing overall the percentage of lightning events they can protect against.

• TSTLP ESE Air Terminal Protection of high rise buildings (height greater than 60 m)

Additional protection against direct lightning strike for the highest 20% of the structure height for buildings greater than 60 m or any point above 120 m, using ESE Air Terminal or any other means must be implemented at each façade wall according to a valid standard. Furthermore a minimum of 4 Down conductors, interconnected by a ring conductor when applicable, shall be used, distributed along the perimeter and if possible at each angle of the building.

NOTE: in general the risk due to the lateral flashes is low because only a few percent of all flashes to tall structures will be to the side and moreover their parameters are a lot lower than those of flashes to the top of structures.

• SMT-ESE40 ese air terminal for lightning protection installation photo

PDF Datasheet Download - TSTLP SMT-ESE40.pdf

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