According IEC 60364-5-53, use up-
stream RCD the network only permitted
in the case the circuit”. Suitable protection concepts must agreed
upon jointly planners, lightning protection engin-
eers, electricians and the operator/client.g.1 Installation with residual current devices
(RCDs)
For fraction second, surge protection devices
generate all-pole equipotential bonding.2.
3. the surge arrestor
can only fitted after the RCD, surge-current-proof
RCD must used.2. When implement-
ing surge protection concept necessary ob-
tain information the devices and system compon-
ents protected and, where possible, gather them
into lightning protection zones (LPZs). Here, the three ex-
ternal conductors are connected the neutral wire
via the surge arrestors and insulating N-PE spark
gap used the earthing line.
3.
Requirements laws such the German state build-
ing regulations and the current standards must ob-
served.
TBS
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Chapter The internal lightning protection system
.4 Versions
In building structures and electrical systems, meas-
ures for lightning and surge protection and e. ensure
maximum availability, surge arrestors must fitted
upstream the RCDs. The stipula-
tions insurance companies and network operators
should also taken into account. water and drainage pipes)
The cables must incorporated into the local equi-
potential bonding system either directly using suit-
able arrestors.3. this way, the surge current
is arrested earth first, preventing accidental tripping
of the RCD.3.6 Protection circuit
Only effective protection circuit providing uninter-
rupted surge protection can prevent dangerous poten-
tial differences devices/systems. The best lightning and surge protection
concept useless unless every electrical and metal
line entering the building the protection circuit in-
cluded the protection concept. struc-
tural fire safety must taken into account and
tailored one another right from the planning stage.
Protection circuit around electronic device
Circuits that need incorporated into the equipo-
tential bonding system:
• Power supply lines
• Network and data cables
• Telecommunications cables
• Antenna cables
• Control cables
• Metallic pipes
(e.2.4.g
