- Артикул:00-01039846
- Автор: Brian Scaddan
- ISBN: 978-0-367-02336-2
- Обложка: Твердая обложка
- Издательство: Routledge (все книги издательства)
- Город: New York
- Страниц: 332
- Год: 2019
- Вес: 982 г
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Издание на английском языке
This book is intended for the trainee electrician who is working towards NVQs, gaining competences in various aspects of installation work.
It covers both installation theory and practice in compliance with the 18th edition of the IET Wiring Regulations, and also deals with the electrical contracting industry, the environmental effects of electricity and basic electronics.
Contents
Preface
Chapter 1 Basic Information and Calculations
Units
Multiples and Submultiples of Units
Indices
Self-Assessment Questions
Simple Algebra
Formulae or Equations
Manipulation or Transposition of Formulae
Self-Assessment Questions
The Theorem of Pythagoras
Basic Trigonometry
Self-Assessment Questions
Areas and Volumes
Chapter 2 Electricity
Molecules and Atoms
Potential Difference
Electron Flow and Conventional Current Flow
Conductors and Insulators
Electrical Quantities
Ohm’s Law
Electricity and the Human Body
Measuring Current and Voltage
Types and Sources of Supply
Voltage Bands
Components of a Circuit
Self-Assessment Questions
Chapter 3 Resistance, Current and Voltage, Power and Energy
Resistance
Voltage Drop Power: Symbol, P; Unit, Watt (W )
Electrical Energy: Symbol, W; Unit, kilowatt-hour (kWh)
Self-Assessment Questions
Chapter 4 Electromagnetism
Magnetism
Electromagnetism
Application of Magnetic Effects
Drawing the Waveform of an Alternating Quantity
Addition of Waveforms
Root-Mean-Square (r.m.s.) Value
Average Value
Three-Phase a.c. Generator
Inductance: Symbol, L; Unit, Henry (H) Induced e.m.f. Due to Change in Flux
Self-Inductance
Mutual Inductance: Symbol, M; Unit, Henry (H)
Time Constant: Symbol, T
Graphical Derivation of Current Growth Curve
Energy Stored in a Magnetic Field
Inductance in a.c. Circuits
Resistance and Inductance in Series (R–L Circuits)
Impedance: Symbol, Z; Unit, Ohm (?)
Resistance and Inductance in Parallel
Power in a.c. Circuits
Transformers
Self-Assessment Questions
Chapter 5 Capacitors and Capacitance
Capacitors
Capacitance: Symbol, C; Unit, Farad (F)
Dimensions of Capacitors
Capacitors in Series
Capacitors in Parallel
Capacitors in d.c. Circuits
Capacitance in a.c. Circuits
Capacitive Reactance: Symbol, Xc; Unit, Ohm (?)
Resistance and Capacitance in Series Resistance and Capacitance in Parallel
Working Voltage
Applications of Capacitors
Self-Assessment Questions
Chapter 6 Resistance, Inductance and Capacitance in Installation
Work
PF Improvement
Self-Assessment Questions
Chapter 7 Three-Phase Circuits
Star and Delta Connections
Current and Voltage Distribution
Measurement of Power in Three-Phase Systems
Self-Assessment Questions
Chapter 8 Motors and Generators
Direct-Current Motors
The a.c. Motors
Starters
Installing a Motor
Fault Location and Repairs to a.c. Machines
Power Factor of a.c. Motors
Motor Ratings
Self-Assessment Questions
Chapter 9 Cells and Batteries
General Background
The Primary Cell
The Secondary Cell
Cell and Battery Circuits
Self-Assessment Questions
Chapter 10 Illumination and ELV Lighting
Light Sources
Lamp Types
Calculation of Lighting Requirements
Self-Assessment Questions
Chapter 11 Electricity, the Environment and the Community
Environmental Effects of the Generation of Electricity
Micro-Renewable Energy
Heat-Producing Renewables
Electricity-Producing Renewables
Co-Generation
Water Conservation
The Purpose and Function of the National Grid
Generation, Transmission and Distribution Systems
The Aesthetic Effects of the Siting of Generation and Transmission Plant
Chapter 12 Health and Safety
Safety Regulations
The Health and Safety at Work Act 1974
Electricity at Work Regulations 1989
Personal Protective Equipment Regulations (PPE) 1992
Construction (Design and Management) Regulations
Control of Substances Hazardous to Health Regulations
Chemicals (Hazardous Information and Packaging for Supply) Regulations (CHIP) 2009
Working at Height Regulations 2005
Control of Asbestos Regulations 2002
The Building Regulations
General Safety
The Mechanics of Lifting and Handling
Work, Load and Effort
Access Equipment
The Joining of Materials
Fire Safety Electrical Safety
First Aid
Electric Shock
Chapter 13 The Electrical Contracting Industry
Sample Specification
Cost of Materials and Systems
Chapter 14 Installation Materials and Tools
Cables Jointing and Terminations
Plastics
Cable Management Systems
Fixing and Tools
Comparison of Systems
Self-Assessment Questions
Chapter 15 Installation Circuits and Systems
Lighting Circuits
Lighting Layouts
Power Circuits
Space Heating Systems
Radiant or Direct Heating
Thermostats
Installation Systems
Industrial Installations
Multi-Storey Commercial or Domestic Installations
Off-Peak Supplies
Alarm and Emergency Systems
Call Systems
Emergency Lighting Systems
Central Heating Systems
Extra-Low-Voltage Lighting
Choice of System
Special Locations
Chapter 16 Earthing and Bonding
Earth: What It Is, and Why and How We Connect To It
Earth Electrode Resistance
Earthing Systems
Earth Fault Loop Impedance
Residual Current Devices Requirements for RCD Protection
Self-Assessment Questions
Chapter 17 Protection
Protection
Control
Chapter 18 Circuit and Design
Design Procedure
Design Current
Nominal Setting of Protection
Rating Factors
Current-Carrying Capacity
Choice of Cable Size
Voltage Drop
Shock Risk
Thermal Constraints
Selection of cpc Using Table 54.7
Installation Reference Methods
Installation Methods
Chapter 19 Testing
Measurement of Electrical Quantities
Measurement of Current
Measurement of Voltage
Instruments in General
Selection of Test Instruments
Approved Test Lamps and Indicators
Accidental RCD Operation
Calibration, Zeroing and Care of Instruments
Initial Inspection
Testing Continuity of Protective Conductors
Testing Continuity of Ring Final Circuit Conductors Testing Insulation Resistance
Special Tests
Testing Polarity
Testing Earth Electrode Resistance
Testing Earth Fault Loop Impedance
External Loop Impedance Ze
Prospective Fault Current
Periodic Inspection
Certification
Inspection and Testing
Fault Finding
Chapter 20 Basic Electronics Technology
Electronics Components
Semi-Conductors
Rectification
Electronics Diagrams
Electronics Assembly
Self-Assessment Questions
Answers to Self-Assessment Questions
Appendix
Glossary
Index
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Артикул 00-00002163
