Lightning Protection Zones Of A Building - Siemens SIMATIC S7-300 Hardware And Installation Manual

Appendix
External
lightning prot.
Line in
power
system
Figure 12-6 Lightning protection zones of a building
12-20
Lightning-protection zone 0 (field side)
Ligtning-protection zone 1
-
Ligtning-prot. zone 2
Lightning
-prot.
Zone 3
device
Metal
part
Line in information system
S7-300 Programmable Controller Hardware and Installation
Building shield
(Steel reinforcing)
Room shield
(Steel reinforcing)
Device shield
(Metal casing)
Non-
electric
line
(metalic)
Internal
line
Lightning-
protection equal
Local potential
equal
A5E00105492-02