<5% U
T
(>95% dip in U
T
)
for 5 sec
Power
frequency
(50Hz)
magnetic
field IEC 61000-4-8
3A/m
3A/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 application of the test level.
Guidance and manufacture’s declaration – electromagnetic immunity
The
[EQUIPMENT or SYSTEM] i
s
intended for use in the electromagnetic environment specified below. The customer
or the user of
[EQUIPMENT or SYSTEM]
should assure that it is used in such an environment.
Immunity test
IEC 60601 test
level
Compliance
level
Electromagnetic environment -
guidance
Conducted RF
IEC 61000-4-6
3 V
rms
150 kHz to 80 MHz
Not
applicable
Portable and mobile RF communications
equipment should be used no closer to any
part of the
[EQUIPMENT or SYSTEM]
, including
cables, than the recommended separation
distance
calculated
from
the
equation
applicable to the frequency of the transmitter.
Recommended separation distance
P
d
167
.
1
=
P
d
167
.
1
=
80 MHz to 800 MHz
P
d
333
.
2
=
800 MHz to 2.5 GHz
Where
P
is the maximum output power rating
of the transmitter in watts (W) according to the
transmitter manufacturer and
d
is the
recommended separation distance in metres
(m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,
a
should be less than the compliance level in
each frequency range.
b
Interference may occur in the vicinity of
equipment marked with the following symbol:
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land
mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically
with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site
survey should be considered. If the measured field strength in the location in which the
[EQUIPMENT or
SYSTEM]
is used exceeds the applicable RF compliance level above, the
[EQUIPMENT or SYSTEM]
should be
