3.1.4 electrical operating conditions
3.1.4.1
Equipment classification
requirement
Standard
class
Notes
Overvoltage category
III
–
–
Pollution degree
2
Non-conductive pollution, occasional conden-
sation when PDS is out of service.
Table 5:
Equipment classification
3.1.4.2 Electromagnetic compatibility
The specified values are valid only for devices with external filter.
eMc emitted interference
Standard
class
Notes
Cable-based interferences
C2
–
Radiated emissions
C2
–
Interference immunity
Standard
Level
Notes
Static discharges
8 kV
4 kV
AD (air discharge)
CD (contact discharge)
Burst - Ports for process
measurement control lines
and signal interfaces
2 kV
–
Burst - Power ports
4 kV
–
Surge - Power ports
1 kV
2 kV
Phase-phase
Phase-ground
Cable-fed disturbances,
induced by high-frequency
fields
10 V
0.15...80 MHz
Electromagnetic fields
10 V/m
3 V/m
1 V/m
80 MHz...1 GHz
14...2 GHz
2...2.7 GHz
Voltage fluctuations/
voltage dips
–
-15 %...+10 %
90 %
Frequency changes
–
≤ 2 %
Voltage deviations
–
±10 %
Voltage unbalance
–
≤ 3 %
Table 6:
Electromagnetic compatibility
26
