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55
Immunity
Test IEC 60601
Test level Compliance
level Electromagnetic
environment –
guidance
Voltage
dips, short
interruptions
and voltage
variations on
power sup-
ply 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 fre-
quency
(50/60 Hz)
magnetic
field
IEC
61000-4-8 3 A/m 3 A/m Power frequency
magnetic fields
should be at lev-
els characteristic
of a typical loca-
tion in a typical
commercial or
hospital environ-
ment
NOTE U
T
is the a.c. mains voltage prior to the application of the
test level.
*) Battery powered equipment