Guidelines for Handling Electrostatically-Sensitive Devices (ESD)
SIMATIC Rack PC IL 40, Getting Started
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A5E00171493-02
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Electrostatic Charging of Persons
Charging
Every person with a non-conductive connection to the electrical potential of its
surroundings can be charged electrostatically.
Figure 7-1 shows you the maximum values for electrostatic voltages which can
build up on a person coming into contact with the materials indicated in the figure.
These values are in conformity with the specifications of IEC 801-2.
Voltage in kV
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
Relative air humidity in %
1
3
1
Synthetics
2
Wool
3
Antistatic material, for example,
wood or concrete
2
Figure 7-1
Electrostatic Voltages which can Build up on a Person
