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Immunity test
IEC 60601
Test level
Compliance
level
Electromagnetic environment -
Guidance
Power
frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
30 A/m
30 A/m
Power frequency magnetic fields
should be at levels characteristic of
a typical location in a typical
commercial or hospital environment
NOTE 1)
At 80MHz and 800MHz, 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
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 re-orienting or relocating the EUT.
b
Over the frequency range 150kHz to 80MHz, field strengths should be less than 10
V/m.
