Smart Meters - Public Service Commission

to be time-averaged over a 30 minute time period, the FCC also addresses
peak power exposures. The FCC refers back to the ANSI/IEEE C95.1-1992
standard to define what peak power limits are.
The ANSI/IEEE C95.1-1999 standard defines peak power density as “the
maximum instantaneous power density occurring when power is
transmitted.” (p. 4) Thus, there is a second method to test FCC compliance
that is not being assessed in any FCC Grants of Authorization.
“Note that although the FCC did not explicitly adopt limits for peak
power density, guidance on these types of exposures can be found in
Section 4.4 of the ANSI/IEEE C95.1-1992 standard.”
Page 10, OET 65
The ANSI/IEEE limit for peak power to which the FCC refers is:
“For exposures in uncontrolled environments, the peak value of the
mean squared field strengths should not exceed 20 times the square of
the allowed spatially averaged values (Table 2) at frequencies below
300 MHz, or the equivalent power density of 4 mW/cm2 for f between
300 MHz and 6 GHz”.
The peak power exposure limit is 4000 uW/cm2 for all smart meter
frequencies (all transmitting antennas) for any instantaneous RF exposure of
4 milliwatts/cm2 (4 mW/cm2) or higher which equals 4000 microwatts/cm2
(uW/cm2).
This peak power limit applies to all smart meter frequencies for both the
smart meter (two-antenna configuration) and the collector meter (threeantenna
configuration). All these antennas are within the 300 MHz to 6
GHz frequency range where the 4000 uW/cm2 peak power limit applies