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53
Chapter General introduction
.
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.9. This also applies the sup-
ply cable run between the last mast the exposed
cable and the building earth cable.TBS
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Type surge protection device the distribution
1. 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. 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.
Surge protection mandatory all building install-
ations!
Insulation coordination must carried out all new
or expanded electrical systems.
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.
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.
Protection mandatory for exposed cables!
Buildings supplied exposed cables are risk from
partial lightning currents
