Rules for Handling Electrostatically Sensitive Devices (ESD)
B-3
FM 456-2 Application Function Module Installation, Hardware, and Startup
C79000-G7076-C458-01
B.2 Electrostatic Charging of Persons
Charging
Any person whose electrical potential is not equalized to that in their environment
can become electrostatically charged.
Figure B-1 shows the maximum electrostatic voltage with which a person can
become charged when coming into contact with the materials shown. These values
correspond to the figures in 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
humidity in %
1
3
1 Synthetic material
2
Wool
3
Antistatic material such as
wood or concrete
2
Figure B-1 Electrostatic Voltages with which a Person May Become Charged