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252
Voltage
dips, short
inter-
ruptions
and voltage
variations
on power
supply input
lines
IEC
61000-4-11
<5 % U
T
(>95 % dip
in U
T
) for
0.5 cycle
40 % U
T
(60 % dip
in U
T
) for 5
cycles
70 % U
T
(30 % dip
in U
T
) for 25
cycles
<5 % U
T
(>95 % dip
in U
T
) for 5 s
Not
applicable *)
Not
applicable *)
Power
frequency
(50/60 Hz)
magnetic
field
IEC
61000-4-8
3 A/m 3 A/m Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment
NOTE U
T
is the a.c. mains voltage prior to the application of the test level.
*) Battery powered equipment
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