Furuno WR2120 Installation Manual page 58

Identify the types of loss relevant to the structure
For each type of loss, identify and calculate the risk components
Calculate new values
of risk components
Figure A.1: Procedure for deciding the protection requirements and selecting protection measures
Identify the structure to be protected
R . R . R . R . R . R
A B C M U
R > R
T
YES
Protection needed
Is LPS installed?
NO
R +R +R
A B U
+R >R
V T
YES
Install adequate
type of LPS
. R . R
V W Z
NO
Structure protected
YES
Are SPM installed?
NO
NO
Install adequate
SPM
52
YES
Install other protection
measurement