Page 6 - Planning_Lightning_Protection

R Z

R Flashes... S ... near a line R
W 4 A
... to a
... to a line structure

R Risk R R
V B
X
S 3 S 1

R ... near a S R
U structure 2 C

R
M

DEHN Risk Tool: Assessment
and reduction of risks

Risk composition Source of damage S :
1
When performing a risk analysis, not only the risks R to R 4 Flashes to a structure
1
are considered. Even more important is the composition R = Step and touch voltage inside and outside a structure
A
of the total risk since each risk consists of individual risk R B = Fire
components. R = Overvoltage / LEMP
C
Subdivision of the risk components according to the Source of damage S :
2
sources of damage Flashes near a structure
The sources of damage form the basis for the sub- R = Overvoltage / LEMP
M
division of the risk components. The IEC 62305-2 standard
describes different types of lightning effects as sources of Source of damage S :
3
damage. When performing a risk analysis, the following Flashes to a line
U
components are considered as sources of damage: R = Touch voltage inside a structure
R = Fire
V
R = Overvoltage
W
Source of damage S :
4
Flashes near a line
R = Overvoltage
Z

LEMP = Lightning Electromagnetic Pulse
6