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32
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines IEC 61000-4-11
0% UT;
0.5 cycle At 0°,
45°, 90°, 135°, 180°,
225°, 270° and 315°
0 % UT;
1 cycle and 70% UT;
25/30 cycles
Single phase:
at 0° 0% UT; 250/300 cycles
0% UT;
0.5 cycle At 0°, 45°,
90°, 135°, 180°, 225°,
270° and 315°
0 % UT;
1 cycle and 70% UT;
25/30 cycles
Single phase:
at 0° 0% UT;
Mains power quality should be that
of a typical commercial or hospital
environment. If the user of the
device requires continued operation
during power mains interruptions, it
is recommended that the device be
powered from an uninterruptible power
supply or a battery.
Power frequency
(50/60 Hz) magnetic
eld IEC 61000-4-8
30 A/m 30 A/m
Power frequency magnetic elds should
be at levels characteristic of a typical
location in a typical commercial or
hospital environment.
Note: UT is the a.c. mains voltage prior to application of the test level.
Table 2 (cont.)
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