Storch 60 02 25 Bedienungsanleitung Seite 39

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