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B.2
Electrostatic Charging of Objects and Persons
Electrostatic
Any object with no conductive connection to the electrical potential of its
Charging
surroundings can be charged electrostatically. In this way, voltages up to
15 000 V can build up whereas minor charges; that is, up to 100 V, are not
relevant.
Examples:
Limits for
An electrostatic discharge is
Perceiving
Electrostatic
Discharges
A fraction of these voltages is capable of destroying or damaging electronic
devices.
Carefully note and apply the protective measures described below to protect
and prolong the life of your modules and components.
C7-626 / C7-626 DP Control Systems
C79000-G7076-C626-01
Guidelines for Handling Electrostatically Sensitive Devices
Plastic covers
Plastic cups
Plastic-bound books and notebooks
Desoldering device with plastic parts
Walking on plastic flooring
Sitting on a padded chair
Walking on a carpet (synthetic)
perceptible from 3500 V
audible from 4500 V
visible from 5000 V
up to 5 000 V
up to 5 000 V
up to 8 000 V
up to 8 000 V
up to 12 000 V
up to 15 000 V
up to 15 000 V
B-3
B
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