3, expansion piece must also
be integrated for temperature-controlled length
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l Building length
m Mesh width
Grid system flat roof
2. loop size must
therefore not exceeded. If, our example, the
overall length greater than the recommended size
indicated Table 2.1.3: Mesh widths for different lightning protection
classes
The mesh method used exclus-
ively the basis the lightning
protection class.
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65
Chapter The external lightning protection system
.3 Mesh method
Installing the loops
A number different loop sizes are suitable for the
particular lightning protection class the building.
Class Mesh width
I m
II m
III m
IV m
Table 2.
The building our example has building lightning pro-
tection class III
