20
Guidance and manufacturer’s declaration - electromagnetic immunity
Voltage dips, short
interruptions and
voltage variations
on power supply
input linesIEC
61000-4-11
5% UT
(>95% dip in
UT) for 0.5 cycle
40% UT
(60% dip in UT)
for 5 cycle
70% UT
(30% dip in UT)
for 25 cycle
<5% UT
(>95% dip in
UT)
for 5s
5% UT
(>95% dip in UT)
for 0.5 cycle
40% UT
(60% dip in UT)
for 5 cycle
70% UT
(30% dip in UT)
for 25 cycle
<5% UT
(>95% dip in UT)
for 5s
Mains power quality should be that of a
typical commercial or hospital environ-
ment.
Power frequen-
cy (50/60Hz)
magnetic field IEC
61000-4-8
30 A/m
50Hz/60Hz
30 A/m
50Hz/60Hz
Power frequency magnetic fields should
be at levels characteristic of a typical lo-
cation in a typical commercial or hospital
environment.
NOTE UT is the A.C. mains voltage prior to application of the test level.
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