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Storch 60 02 25 Bedienungsanleitung Seite 39

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Detecting hazardous voltages on the PE conductor (e.g. due to an installation
fault) is based on measuring the difference in potential between the PE con-
nection of the combination and the locally available protective earth, providing
the overall resistance R∑ (= R
the measuring principle can be compared to that using voltage testers. The
internal resistance of the combination itself is approximately 770 kΩ.
As per DIN EN 61010-1 the contact current R∑ for =2 kΩ (R
below 500 μA.
Reference values
R
0 ... 1.6 kΩ (DIN VDE 0100-410)
E
R
Insulating flooring has been provided as per VDE 0100-410
ISO
if RISO is over 50 kΩ (at nominal voltages of up to 500 V) or
over 100 kΩ (nominal voltage > 500 V);
in this case, we assume that coming into contact with a haza-
rdous, active conductor will no longer pose the risk of electric
shocks.
R
DIN EN 61010-1: 2 kΩ (hand to foot, dry),
B
875 Ω (hand to foot, humid)
For very minor body voltage of up to 100 kΩ
R
R
0 ... > 10 MΩ
S +
H
Depends on clothing, shoes, skin moisture contents, etc.
+ R
+ R
+ R
E
ISO
S
B
39
+ R
) is at maximum 28 MΩ;
H
effective only) is
B

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