Electric Safety

Practice and Standards

Mohamed A. El-Sharkawi (Autor)

Buch | Hardcover

464 Seiten

2023
CRC Press (Verlag)
978-1-138-58188-3 (ISBN)

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Electric power engineering education traditionally covers safety of the power equipment and systems. Little attention, if any, is given to the safety of people. When they reach professional status, most power engineers are not familiar with electric safety issues such as practices governing site works or grounding techniques of dwellings, hospitals, and factories. Designed for both electrical engineering student and practicing power engineers, Electric Safety: Practice and Standards provides the knowledge and analysis they need to be well versed in electric safety.

Features:

Includes techniques to assess safety practices at worksites and provides remedies to correct safety problems
Addresses the elusive stray voltage problem and provides techniques to mitigate its impact in dwellings as well as in sensitive installations such as hospitals and dairy farms
Provides approximate, yet accurate, analyses and techniques that can be used to assess electric safety without the need for extensive computation or elaborate programs
Includes several case studies from real events and examples demonstrating how variations in electric safety procedure implementation influence safety levels

Based on the authors’ years of experience as an expert witness and electric safety training instructor, the book covers the analysis of electric safety practices as well as the interpretations of various safety codes. Including homework problems and a solutions manual, this book is a comprehensive guide to recognize and eliminate hazards of electric shocks for professionals working on electric power equipment, as well as people such as the general public in commonly used places, farms workers and animals, and hospital patients.

Fundamentals of Electricity
Electric Fields
Magnetic Fields
Alternating Current
Three-Phase Systems

Basic Components of an Electric Grid
Power Lines
Substations

Physiological Effects of Electricity
Classifications of Electric Shocks
Factors Determining the Severity of Electric Shocks
Symptoms and Treatments of Electric Shock
Microshocks

Ground Resistance
Ground Resistance of Objects
Soil Resistivity
Soil Treatment
Factors Affecting Ground Resistance

General Hazards of Electricity
Touch Potential
Step Potential

Induced Voltage due to Electric Field
Equipotential Surface
Induced Voltage on a Conductor without Field Distortion
Electric Field Distortion due to Earth
Induced Voltage due to Multiple Energized Phases
Effect of Line Configuration on Induced Voltage
Induced Voltage due to Energized Cables

Induced Voltage due to Magnetic Field
Flux and Flux Linkage
Induced Voltage due to Single Energized Conductor
Induced Voltage due to Multiple Energized Conductors
Induced Voltage due to Electric and Magnetic Fields

De-energized Line Work
Definition of a De-energized Conductor
Methods of Detecting Induced Voltage
Main Protection Techniques
Grounding System
Grounding Methods
Case Studies

Live-Line Work
Hot Stick Method
Insulate and Isolate Method
Bare-Hand Method
Case Study
Exercises

Arc Flash
Arc Flash Phases
Assessment of Arc Flash
Calculation of Arc Flash Protection Boundary
Personal Protection Equipment
Approach Boundaries

Atmospheric Discharge
Characteristics of Lightning Discharge
Protection from Lightning Strikes
Safe Distance from Lightning Protection Devices
Exercises

Stray and Contact Voltages
Neutral versus Ground
Service Transformer
Voltage on Neutral Conductor
Stray Voltage
Detection of Stray Voltage
Mitigation of Stray Voltage
Mitigation of Stray Voltage in Hospitals
Contact and Structure Voltages
Neutral Deterioration
World’s Residential Grounding Practices

Electric Safety under Power Lines
Electric Field Calculation
Electric Field near Objects
Electric Field Profile under Power Lines
Allowable Limits for Electric Fields
Minimum Vertical Clearance Methods
Measurement of Electric Field Strength
Mitigation of Electric Field

Coupling between Power Lines and Pipelines, Railroads, and Telecommunication Cables
Electric Field Coupling
Magnetic Field Coupling
Mitigation of Electromagnetic Coupling
Ground Current

Erscheint lt. Verlag	31.12.2023
Zusatzinfo	421 - Full color book!; 29 Tables, black and white; 339 Illustrations, black and white
Verlagsort	London
Sprache	englisch
Maße	152 x 229 mm
Themenwelt	Technik ► Elektrotechnik / Energietechnik
Themenwelt	Technik ► Umwelttechnik / Biotechnologie
ISBN-10	1-138-58188-7 / 1138581887
ISBN-13	978-1-138-58188-3 / 9781138581883
Zustand	Neuware