Guidelines for Handling Electrostatically-Sensitive Devices (ESD)
A-3
SIMATIC Field PG Manual
A5E00075760-04
A.2 Electrostatic Charging of Persons
Charging
Every person with a non-conductive connection to the electrical potential of its
surroundings can be charged electrostatically.
Figure A-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)
510
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
Fig. A-1 Electrostatic Voltages which can Build up on a Person
To Next Page
Loading...
