2
022-
03
16
Electromagnetic Compatibility Verification
5
Electromagnetic Compatibility Verification
Verification in Accordance with EC Council Legislation
Directive 2004/108/EC and 2014/30/EU
Compatibility in Accordance with EN 61326-1 and NAMUR
NE 21 Recommendation
The electromagnetic compatibility (EMC) requirements, applicable for electrical
equipment for measurement, control, and laboratory use in general are anchored
in the international standard EN 61326. 3 different performance criteria are distin-
guished in this standard:
A class
A
device operates as intended during the test. This device can withstand
the immunity tests without any noticeable performance degradations within the
specification limits of the manufacturer.
A class
B
device operates as intended after the test. The device shows temporary
degradation or loss of function of performance during the test but self-recovers
from that state when the exposures are ceased.
A class
C
device has loss of function. The device may need manual restoration.
During the test a temporary loss of function is allowed, as long as an operator can
restore the device back to operation.
The requirements of the association for standard and control and regulations of
the German chemical industries, defined in the NE 21 recommendation, are partly
higher compared to the test levels and failure criteria defined in EN 61326-1. For
the product qualification, the failure criteria and test levels selected always repre-
sent the worst case conditions.
EN 61000-4, as a generic standard, defines the test setups for the specific
required test for EN 61326-1 and NE 21.
See declaration of conformity for standards and editions applied.
Conducted EMC Tests
Immunity
Standard
Type
Test
Level
Cate-
gory
EN 61000-4-2
Electrostatic discharge, direct contact 6 kV
A
Electrostatic discharge, indirect, air
8 kV
A
EN 61000-4-3
Electromagnetic field radiated, radio
frequency
10 V/m A
EN 61000-4-4
Fast transients burst on signal lines
1 kV
A
Fast transients burst on power lines
2 kV
A
EN 61000-4-5
Slow transient surge on signal lines
1 kV
B
Slow transient surge on shielded lines 2 kV
B
EN 61000-4-6
Conducted immunity, radio frequency
10 V
A
EN 55011
Reduction factor conducted emission
Class A _
Reduction factor radiated emission
Class A _
Table 5.1 Ethernet Isolator
Содержание EI-0D2-10Y-10B-LT
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