Page 12 - Planning_Lightning_Protection

DEHN Air-Termination Tool:
Length of air-termination rods

Determining the length of air-termination rods Calculation options:
Air-termination rods allow to integrate large areas in the 1. Protective angle method
protected zone of LPZ 0 . DEHN Air-Termination Tool 2. Rolling sphere method for one, two or four
B
allows to determine the length of air-termination rods air-termination rods
easily. In some cases, graphics, which must be created de- 3. Rolling sphere method for four air-termination rods
pending on the class of LPS, are required for this purpose. on pitched roof surfaces
To facilitate work for qualified personnel, calculations for
different kinds of graphics are integrated in the software. To ensure a technically correct external lightning protection
system, the protected zones must be properly dimensioned
according to the height of the air-termination rod.

LPS = Lightning Protection System
12