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A.2 Electrostatic Charging - Siemens SIMATIC Box PC 840 Manual

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A.2
Electrostatic Charging
Charging
Anyone who is not conductively connected to the electrical potential of their
surroundings can be electrostatically charged.
The maximum electrostatic voltage values which an operator can be charged with
when contacting the materials stated in the illustration are shown in Fig. A-1.
These values correspond to the specifications of IEC 801-2.
Voltage in kV
(kV)
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
5 10 20 30 40 50 60 70 80 90 100
Figure A-1 Electrostatic Voltages which an Operator Can Be Charged with
SIMATIC Box PC 840 Manual
A5E00085984-04
1
2
3
Guidelines for Handling Electrostatic
1
synthetic material
2 wool
3 antistatic material, for example,
wood or concrete
rel. humidity
in %
A-3

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