Quote from VDE 0100-443: "The
erection surge protection
devices (SPDs) should ensure a
voltage limitation according the
insulation coordination, order to
avoid dangerous spark formation
and resulting fires.
In the case outdoor line infeed lightning
protection system according VDE 0185-305, type 1
SPDs should used for lightning protection equipo-
tential bonding.
3.
4. DIN VDE 0100-
443 describes surge voltages from atmospheric influ-
ences impacts switching actions. Must additional measures taken against surge
voltages the case terminals sub-distributors
which are cable length more than metres
from the last surge arrestor?
Answer: The measures for sensitive terminals sub-
distributors which are cable length more than
10 from the last surge arrestor should agreed
individually between the installation engineer and the
client. household appliances, com-
puters, tools, etc.
2.g.).
In addition, DIN VDE 0100-443 recommends the use
of surge arrestors for interfaces.TBS
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Questions about DIN VDE 0100-443/-534
1. What now obligatory according DIN VDE
0100-443?
Answer: DIN VDE 0100-443 prescribes surge ar-
restors front resources surge voltage category
I and II. necessary erect the surge
protection the side according DIN VDE
0100-443 and check for and communications
technology. Which arrestors should used?
Answer: protection against lightning impacts and
switched surge voltages, which ingress into the sys-
tem via the supply line, type SPDs must installed
at the feed point/building entry."
Summary: Surge protection pre-
ventive fire protection!
TBS
Blitzschutz-Leitfaden
2018
/
en
/
2020/01/10
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(LLExport_02613)
/
2020/01/10
14:42:54
14:42:54
191
Chapter The internal lightning protection system
. housing, terminals with this rated surge
voltage are used (e. According Supplement DIN VDE
0185-305-3, surge protection the side also
necessary. Must new systems those erected later
date protected?
Answer: system must erected according to
DIN VDE 0100-712. If, within building, switching surge voltages
are generated and cables leave the building, then
there the necessity checking further measures
and documenting the result
