B
B-3
C7-626 / C7-626 DP Control Systems
C79000-G7076-C626-01
B.2
Electrostatic Charging of Objects and Persons
Any object with no conductive connection to the electrical potential of its
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:
S
Plastic covers
up to
5 000 V
S
Plastic cups
up to
5 000 V
S
Plastic-bound books and notebooks
up to
8 000 V
S
Desoldering device with plastic parts
up to
8 000 V
S
Walking on plastic flooring
up to 12 000 V
S
Sitting on a padded chair
up to 15 000 V
S
Walking on a carpet (synthetic)
up to 15 000 V
An electrostatic discharge is
S
perceptible from 3500 V
S
audible from 4500 V
S
visible from 5000 V
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.
Electrostatic
Charging
Limits for
Perceiving
Electrostatic
Discharges
Guidelines for Handling Electrostatically Sensitive Devices
Содержание SIMATIC C7-626
Страница 18: ...1 1 6 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Product Overview ...
Страница 72: ...3 3 26 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks ...
Страница 78: ...4 4 6 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Connecting a Programming Device PC to a C7 ...
Страница 122: ...A A 8 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 General Technical Specifications ...
Страница 138: ...Glossary 10 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary ...
Страница 142: ...Index 4 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Index ...