D.2 Electrostatic charging of persons
Electrostatic charging
Any person with a non-conductive connection to the electrical potential of its surroundings may
be exposed to electrostatic charge.
The figure shows the maximum electrostatic voltage which may build up on a person coming
into contact with the materials indicated. These values are in conformity with the specifications
of IEC 61000-4-2.
1
2
3
4
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
(kV)
5 10 20 30 40 50 60 70 80 90 100
Figure D-1 Electrostatic voltages which can build up on a person
(1) Voltage in kV
(2) Synthetic material
(3) Wool
(4) Antistatic materials, such as wood or concrete
(5) Relative air humidity in %
Directive on handling electrostatic sensitive devices (ESD)
D.2 Electrostatic charging of persons
S7-400 Automation System Module Data
434 Reference Manual, Ausgabe 11/2016, A5E00850736-08
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