EMC GUIDANCE
26
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Guidance and manufacturer’s declaration – electromagnetic immunity
Immunity test
±8 kV contact
±15 kV air
±8 kV contact
±15 kV air
±2 kV
power supply lines:
line(s) to line(s):
±1 kV
line(s) to earth:
±2 kV
0%U
T;
0.5 cycle
At 0°, 45°, 90°, 135°,
180°,225°,270° and 315°
0%U
T
; 1 cycle
and
70%U
T
; 25/30 cycles
Single phase: at 0°
0% U
T
; 300 cycle
30 A/m
50Hz/60Hz
NOTE U
T
is the a.c. mains voltage prior to application of the test level.
Table 2
Compliance level
Electrostatic
discharge
(ESD)
IEC 61000-4-2
Electromagnetic
environment - guidance
30 A/m
50Hz/60Hz
Power frequency
(50Hz/60Hz
)
magnetic field
IEC 61000-4-8
Voltage dips,
short interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Electrical fast
transient/burst
IEC 61000-4-4
Surge
IEC61000-4-5
input/output lines:
±1 kV
The device is intended for use in the electromagnetic environment specified below. The customer or the
user of the device should assure that it is used in such an environment.
IEC 60601 test level
Floors should be wood, concrete
or ceramic tile. If floors are
covered with synthetic material,
the relative humidity should be at
least 30%.
±2 kV
power supply lines:
100 kHz repetition
frequency
line(s) to line(s):
±1 kV
100 kHz repetition
frequency
Mains power quality should be
that of a typical commercial or
hospital environment.
Mains power quality should be
that of a typical commercial or
hospital environment.
Mains power quality should be
that of a typical commercial or
hospital environment.
Power frequency magnetic fields
should be at levels characteristic
of a typical location in a typical
commercial or hospital
environment.
0% U
T
; 0.5 cycle
At 0°, 45°, 90°, 135°,
180°,225°,270° and
315°
0% U
T
; 1 cycle
and
70% U
T
; 25/30 cycles
Single phase: at 0°
0% U
T
;300 cycle
Table 3
Guidance and manufacturer’s declaration – electromagnetic immunity
Immunity test
Compliance
level
IEC 60601
Test level
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
10V/m, 80% Am
at 1kHz
150 kHz to
80 MHz:
3 Vrms
6Vrms (in ISM
and amateur
radio bands)
80% Am at 1kHz
Electromagnetic environment - guidance
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 device is used exceeds the applicable RF compliance level
above, the device should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or relocating the device.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
b
The device is intended for use in the electromagnetic environment specified below. The customer or the
user of the device should assure that it is used in such an environment.
150 kHz to
80 MHz:
3 Vrms
6Vrms (in ISM
and amateur
radio bands)
80% Am at 1kHz
Portable and mobile RF communications
equipment should be used no closer to any part
of the device, including cables, than the
recommended separation distance calculated
from the equation appropriate for the frequency
of the transmitter.
Recommended separation distances:
d=0.35 ;
d=1.2
10V/m, 80% Am
at 1kHz
80 MHz to 800 MHz:
d=1.2
800 MHz to 2.7 GHz:
d=2.3
where,
P
is the maximum
output power rating of the
transmitter in watts (W)
according to the
transmitter manufacturer,
d
is the recommended
separation distance in
meters (m). Field
strengths from fixed RF
transmitters, as
determined by an
electromagnetic site
survey, should be less
than the compliance level
in each frequency range.
Interference may occur in
the vicinity of equipment
marked with the following
symbol:
P
P
P
P
EMC GUIDANCE
