Parasitic capacities
occur for example the range. The resulting
interference voltage overlaps with the input voltage
and disrupts signal transmission. Due the parasitic capacitances Cp, the cur-
rent flows via the transmitter earth.TBS
Blitzschutz-Leitfaden
2018
/
en
/
2020/01/10
14:42:40
14:42:40
(LLExport_02613)
/
2020/01/10
14:42:54
14:42:54
Example:
There electric field between different compon-
ents system.
TBS
Blitzschutz-Leitfaden
2018
/
en
/
2020/01/10
14:42:40
14:42:40
(LLExport_02613)
/
2020/01/10
14:42:54
14:42:54
227
Chapter The internal lightning protection system
. The parasitic capacitances cause in-
terference currents that affect nearby cables:
Transmitter
Data cable
Nearby cable with potential difference
Parasitic capacitance
Interference currents
Disturbed signal
Effect capacitive coupling transformer
An unconnected shield does not
protect the system from the influ-
ence interference such as:
• Crosstalk
• Inductive coupling
• Capacitive coupling
The voltages and relate absolute protective
earth
