Page 14 - dehn-surge-protection-PV

air-termination rod

1

1

air-
termi-
nation
rod
6
5

central
4 2 inverter
3
1 earth-termination system

MEB

Surge protective devices for power supply systems
foundation earth electrode
Surge protective devices for information technology systems

Surge protection in a PV panel Surge protection for data transmission
If PV modules are located in the protection zone of the It is essential to monitor the PV system of solar power plants
isolated air-termination system, a type 2 arrester is to to protect it from burglary, control its performance and opti-
be installed in the generator junction box. The modular mise the yield. The data lines inside the power plant and the
DEHNguard M Y PV surge arrester with its unique SCI connection to external devices form loops which may inject
technology provides ideal protection. It is an internationally highly energetic pulses. For this reason, surge protective de-
accepted surge protective device for d.c. circuits recom- vices are indispensable. Yellow/Line surge protective devices
mended by leading inverter manufacturers for system from DEHN protect the data flow and make monitoring
operation without downtime. systems resistant to lightning effects. Permanent condition
monitoring ensures reliable system operation and optimises
Lightning equipotential bonding the yield.

In operation buildings the metallic systems must be directly
connected, and live systems indirectly connected to the
equipotential bonding structure via lightning current arres-
ters.

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