For signals outside the frequency range sup-
ported, this arrestor type galvanic short circuit. Due to
the capacity the gas-discharge tube they are
however limited their bandwidth: the cut-off fre-
quency currently around GHz.
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
245
Chapter The internal lightning protection system
. These arrestors are band-pass
filters that only pass frequencies within specific
range. For example, no
Wi-Fi signals according the 802.11n standard with
a frequency 5.
The advantages this technology are its support for
frequencies around GHz, and its very low
protection level approximately They also re-
quire virtually servicing because they not use a
gas-discharge protector.
Surge arrestors with Lambda/4 technology
The second variant the surge arrestor with
Lambda/4 technology.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
Coaxial surge protective device with gas-discharge pro-
tector
Coaxial surge protective device with Lambda/4 techno-
logy
These sensitive, high-frequency systems need be
protected from lightning currents and surge voltages.
The disadvantages these devices are that not
possible transmit supply voltage along the sig-
nal line, and their scope application generally lim-
ited just one application, depending whether the
necessary frequencies lie within the frequency range
supported. They are available for all standard
connections.9 GHz can transmitted. These enable transmission from a
frequency (DC).
Coaxial surge protective devices with gas-discharge
protector
The first type coaxial surge protective devices with a
gas-discharge tube. The gas-discharge tube
can additionally replaced case defect. They can therefore used a
wide range applications. They are available for virtually
all plug systems.
Suitable arrestors for these applications include the
DS coaxial surge arrestor from OBO Bettermann.
These offer optimal transmission behaviour with low
damping values and are connected series the
transmission path. Coaxial arrestors come two types:
With either gas-discharge protector and Lambda/4
technology
