Power Frequency Magnetic Fields and Public Health

1. Auflage 1995
ISBN: 978-0-8493-9420-1
Verlag: CRC Press

Buch, Englisch, 288 Seiten, Format (B × H): 185 mm x 260 mm, Gewicht: 767 g

The prospect that electromagnetic fields (EMFs) may foster disease is an alarming thought-one which raises such questions as: What are these invisible forces? How are they produced? Is there conclusive evidence that they are harmful to the human body? How do we protect ourselves against possible harm from them? This book addresses these and other questions about magnetic fields, bringing together in a single reference source the scientific background, current status of health research, and means to reduce the impact of EMFs in our environment.Important information is provided for developing policies and procedures related to human interaction with magnetic fields. The authors describe the concept of prudent avoidance, emphasizing its value as a tool in the design, construction, and valuation of homes, offices, retail facilities, and factories. The book provides theory, computer simulation results, measured data, and recommendations for magnetic field management, all of which are useful as a power system design and construction resource.The authors have compiled an impressive summary of the studies, findings, and reports done in the past 15 years in the areas of human health effects which might be attributed to exposure to power frequency magnetic fields. Wherever appropriate throughout text, the authors provide examples to illustrate concepts and include end-of-chapter exercises (with solutions) to help readers solidify their understanding of the material presented. Originally designed as a textbook, this is also an excellent reference in the areas of environmental engineering, city and regional planning, and electrical engineering.

Zielgruppe

Possible Applications for this BookUsing the Book's FeaturesOverview of Chapters 2 through 9Magnetic Fields and Human Health IssuesOverviewIntroduction to Human Health IssuesHistorical DevelopmentHuman Exposure to Magnetic FieldsEpidemiological StudiesInteraction MechanismsStudies Under WaySummaryReferencesThe Nature and Measurement of Power Frequency Magnetic FieldsOverviewThe Electromagnetic Spectrum and SinewavesFields-A DefinitionThe Nature of Fields from Single Phase Alternating Current SourcesThe Nature of Fields from Multiphase Alternating Current SourcesThe Measures and Units of the B Field (Place an overbar over the B)Principles of Measurement of Power Frequency Magnetic FieldsMeasurement of Single Phase FieldsMeasurement of Multiphase FieldsThe Effects of HarmonicsCommercially Available Field MetersSummaryReferencesExercisesSources of Power Frequency Magnetic Fields in the Electric Energy Delivery SystemOverviewTransmission SystemPrimary Distribution SystemsSecondary and Ser

Autoren/Hrsg.

Horton, William F.

Goldberg, Saul

Fachgebiete

• Wirtschaftswissenschaften Betriebswirtschaft Bereichsspezifisches Management Arbeitsplatz, Arbeitsschutz, Gefahrstoffschutz
• Medizin | Veterinärmedizin Medizin | Public Health | Pharmazie | Zahnmedizin Medizin, Gesundheitswesen Public Health, Gesundheitsmanagement, Gesundheitsökonomie, Gesundheitspolitik

Inhaltsverzeichnis

IntroductionGoal in Writing this BookIntended AudiencesPossible Applications for this BookUsing the Book's FeaturesOverview of Chapters 2 through 9Magnetic Fields and Human Health IssuesOverviewIntroduction to Human Health IssuesHistorical DevelopmentHuman Exposure to Magnetic FieldsEpidemiological StudiesInteraction MechanismsStudies Under WaySummaryReferencesThe Nature and Measurement of Power Frequency Magnetic FieldsOverviewThe Electromagnetic Spectrum and SinewavesFields-A DefinitionThe Nature of Fields from Single Phase Alternating Current SourcesThe Nature of Fields from Multiphase Alternating Current SourcesThe Measures and Units of the B Field (Place an overbar over the B)Principles of Measurement of Power Frequency Magnetic FieldsMeasurement of Single Phase FieldsMeasurement of Multiphase FieldsThe Effects of HarmonicsCommercially Available Field MetersSummaryReferencesExercisesSources of Power Frequency Magnetic Fields in the Electric Energy Delivery SystemOverviewTransmission SystemPrimary Distribution SystemsSecondary and ServicesSummaryReferencesExercisesCharacterization of Fields from Transmission and Distribution LinesOverviewIntroduction to the Characterization of Fields from Transmission and Distribution LinesThe Effect of Line Construction (Three Phase Overhead)The Effect of Unbalanced Phase Currents (Three Phase Overhead)The Effect of Line Construction (Single Phase Overhead)The Effect of Line Construction (Three Phase Underground)The Effect of Unbalanced Phase Currents (Three Phase Underground)The Effect of Earth Return (Single Phase Underground)SummaryReferencesExercisesCharacterization of Fields from Distribution Substations and TransformersOverviewIntroductionDistribution SubstationsCharacterization of Fields of Distribution SubstationsDistribution TransformersCharacterization of Fields of Distribution TransformersSummaryReferencesPower Frequency Magnetic Fields in the HomeOverviewSourcesCharacterization of Power Line Fields in the HomeFields Due to Ground CurrentsCharacterization of Fields Due to Appliances and LightingVariations Between Types of ResidencesMeasurement of Residential Power Frequency Magnetic FieldsSummaryReferencesExercisesManagement of Magnetic Fields by ShieldingOverviewIntroduction to ShieldingPrinciples of ShieldingShielding Applied to a Three Phase Underground CableShielding Applied to a Specific Region-Magnetic ShieldingShielding Applied to a Specific Region-Electromagnetic ShieldingActive Shielding or CancellationSummaryReferencesExercisesRegulatory Issues and Prudent AvoidanceOverviewIntroduction to Regulatory IssuesStandards, Limits, and GuidelinesRegulation in the Face of UncertaintyRegulatory Actions in the United StatesRegulatory Actions in Other CountriesInternational GuidelinesSummaryReferencesAppendix A: The Physics of Magnetic FieldsIntroduction to FieldsMagnetic Field IntensityMagnetic Flux DensityMagnetic FluxUnitsMagnetic CircuitsReferencesAppendix B: Modeling and Calculating the Transmission Line FieldThe Field Ellipse and the Resultant FieldThe Transmission Line ModelHand Calculation of the Magnetic Field of a Three Phase Transmission LineComputer Calculation of the Magnetic Fields of a Three Phase Transmission LineReferencesAppendix C: The Magnetic Field of a Transmission Line at a Large Distance from the LineTheory of Reduced Magnetic Field Power LinesReferencesAppendix D: The Science of EpidemiologyAppendix E: GlossaryAppendix F: Personal Prudent Avoidance ActionsIndex