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A probabilistic approach to exposure assessment of power lines electric field
Faculty
Science
Year:
2005
Type of Publication:
Article
Pages:
887-893
Authors:
El Din, EST, Anis, H, Abouelsaad, M
DOI:
10.1109/TPWRD.2005.844268
Journal:
IEEE TRANSACTIONS ON POWER DELIVERY IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Volume:
20
Research Area:
Engineering
ISSN
ISI:000228095900047
Keywords :
electric fields, human exposure, Monte Carlo, power line, probabilistic model, risk analysis
Abstract:
Existing occupational guidelines for exposure to power frequency fields are designed to prevent short-term effects of induced electric fields and currents on excitable tissues. A novel probabilistic approach to the assessment of human exposure to power lines electric fields is introduced. The method offers clear advantages over existing methods that are based on deterministic assumptions. A model is constructed to predict power lines electric fields taking into consideration the random nature of the various parameters involved. Another model is constructed to predict a level of whole-body exposure field, below which no body stimulation is expected, termed here ``safe field.{''} Probability distributions of exposure field near transmission lines and for safe electric field are produced. Both models are integrated into a general model, which characterizes the risk exposure to power lines electric fields. The method is applied for exposure assessment near two typical Egyptian power lines with different probabilities of human presence in the line neighborhood and different human age brackets.
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