Publicité
Les langues disponibles
Les langues disponibles
IEC 60601-1-2:2014—(Ed 4.0) EMC/EMI
Compliance Guidelines (Cont'd)
The table below elaborates the recommended electromagnetic working
environment.
The equipment is intended for use in the electromagnetic environment
specified below. The customer or the user of the equipmenet should assure
that is is used in such an environment.
a) Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and
land mobile radios, amateur radio, AM and FM radi o 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 location in which t he equipment is used exceeds
the applicable RF compliance level above, the equipment should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as re orienting or relocating the
equipment.
Portable and mobile RF communications
equipment should be used no closer to any
part of the equipment including cables,
than the recommended separation distance
calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
√
d = 1.2
P
√
d = 1.2
P
√
d = 2.3
P
80 MHz to 800 MHz
800 MHz to 2.7 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
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.
27
Publicité
