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Use of wiring configuration and wiring codes for estimating externally generated electric and magnetic fields
Author(s) -
Barnes Frank,
Wachtel Howard,
Savitz David,
Fuller Jackson
Publication year - 1989
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/bem.2250100103
Subject(s) - magnetic field , code (set theory) , distribution (mathematics) , line (geometry) , power (physics) , electric field , mathematics , statistics , physics , computer science , geometry , mathematical analysis , programming language , set (abstract data type) , quantum mechanics
The relative locations and characteristics of the distribution lines feeding 434 residences in the Denver metropolitan area were recorded and classified according to the Wertheimer‐Leeper code (WL code) as a part of an epidemiological study of the incidence of childhood cancer. The WL code was found to place the mean values of the fields in rank order. However, the standard deviations were approximately the same size as the means. Theoretical calculations indicate that a significant fraction of the low‐power magnetic fields can be generated by the distribution lines, especially in the cases where the distribution lines are within 50 feet of the residence. Thus, the wiring code was shown to be a useful method for making a first‐order approximation to predict long‐term, low‐level magnetic fields in residences.