Application Example For Protection Of Et 200Isp From Overvoltages - Siemens SIMATIC ET 200iSP Operating Instructions Manual

Appendix
A.5 Lightning and overvoltage protection
Overvoltage suppressor at lightning protection zone transition 2 --> and higher
In the ET 200iSP installation, zone transition 2 --> and higher is not normally used.
A.5.5

Application example for protection of ET 200iSP from overvoltages

Application example
The following figure shows the necessary measures for two networked ET 200iSP. Based on
agreement, all cables and wires from lightning protection zone 0
component currents, must be excluded.
In the application example, the cable and wire systems are unshielded.
6
1
4
2
Figure A-22 Application example of two networked ET 200iSP
362
3
2
1
4
1
4
5
Operating Instructions, 11/2017, A5E00247483-07
and higher, i.e. lightning
B
6
3
2
ET 200iSP