Title :
Power frequency magnetic fields in the home
Author :
Silva, Mike ; Hummon, Norm ; Rutter, David ; Hooper, Chris
Author_Institution :
Enertech Consultants, Campbell, CA, USA
fDate :
1/1/1989 12:00:00 AM
Abstract :
The methodology and findings of a domestic magnetic field measurement program are presented. The purpose was to improve understanding of power-frequency magnetic fields in typical domestic locations for exposure assessment applications. Spot measurements were made at ninety-one sites in six states. In addition, twenty-four-hour continuous measurements were made at a few homes. The household magnetic fields are highly variable and exhibit diurnal cycles. Results suggest that the statistical distributions of magnetic field measurements follow a lognormal probability model. Typical mean values of the resultant in most rooms for these data are about 1 mG, with a standard deviation of about twice the mean peak values of 12 mG. Measurements taken during use of appliances are much higher and have resultant means of about 9-20 mG, with standard deviations of about 40-75 mG and some peak values exceeding 1000 mG
Keywords :
biological effects of fields; magnetic field measurement; domestic magnetic field measurement program; exposure assessment; Cities and towns; Coils; Frequency; Home appliances; Magnetic field measurement; Magnetic fields; Magnetic materials; Measurement standards; Sampling methods; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on