Fig. 10.4. Power density (µW/cm2) inside and outside a truck arising from a roof-mounted 100w
transmitter operating at 41.31 MHz (10).
The 60-Hz electric and magnetic fields associated with typical household appliances are listed in
tables 10.4 and 10.5 respectively (13). There are about 500,000 miles of high-voltage power lines in the
U.S., and they produce fields that depend principally on the line's voltage, current, and geometry. The
ground-level electric field at various distances from typical high-voltage power lines is shown in Figure
10.5. Ground-level magnetic fields from high-voltage power lines are generally in the range 0.1-1
gauss within 150 feet of the line.
Table 10.4. POWER-FREQUENCY ELECTRIC FIELDS OF HOUSEHOLD APPLIANCES
MEASURED AT A DISTANCE OF ONE FOOT
Table 10.5. POWER-FREQUENCY MAGNETIC FIELDS OF HOUSEHOLD APPLIANCES
ELECTROMAGNETISM & LIFE - 137