Surge protection mandatory all building install-
ations!
Insulation coordination must carried out all new
or expanded electrical systems.TBS
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2018
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Type surge protection device the distribution
1.9.
Surge protection prevents the insulation failure
through high voltages and avoids fires due short
circuiting. Surge protection
devices (at least type type 2+3) prevent insu-
lation failure, thus avoiding short circuits and fires. This also applies the sup-
ply cable run between the last mast the exposed
cable and the building earth cable.
IEC 60364-4-44: "The erection surge
protective devices (SPDs) should ensure
a voltage limitation according the in-
sulation coordination, order avoid
dangerous spark formation and resulting
fires.“
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
53
Chapter General introduction
. the
distance between the surge protection device and the
device protected involves cable length of
more than metres, additional measures are re-
quired.1 Surge protection part equipotential
bonding
In Germany, surge protection has been reregulated by
the standards IEC 60364-4-44 and IEC 60364-5-53
and has been obligatory since October 2016.
Protection mandatory for exposed cables!
Buildings supplied exposed cables are risk from
partial lightning currents. For this
reason, surge protection devices (type type 1+2)
able carry lightning current must used the
supply point the electrical system. Electric-
al planners and installation engineers must inform cli-
ents this necessity.
DIN VDE 0100-534: HOW and WHICH measurements
are required?
Surge protection installed close pos-
sible the supply point the electrical system.
DIN VDE 0100-443: WHEN surge protection neces-
sary
On all newly planned buildings and changes expan-
sions existing electrical systems
