Immunity test
IEC 60601 test
level
Compliance
level
Electromagnetic environment –
Guidance
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2,5 GHz
3 V/m
Recommended separation
distance:
d = 3,5/3 * SQRT (P)
d = 3,5/3 * SQRT (P)
80 MHz to 800 MHz
d = 7/3 * SQRT (P)
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
2)
,
should be less than the
compliance level in each
frequency range
3)
. Interference
may occur in the vicinity of
equipment marked with the
following symbol:
Tables 2 and 4 of DIN EN 60601-1-2:2007 (IEC 60601-1-2:2007)
1) U
T
is the AC mains voltage prior to application of the test level.
2) 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 EUT is used exceeds the
applicable RF compliance level above, the EUT should be observed to verify normal operation.
If abnormal performance is observed, additional measures may be necessary, such as reorienting or
relocating the EUT.
3) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Note 1:
At 80 Hz and 800 MHz, the higher frequency range applies.
Note 2:
These guidances may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
– 61 –
