18th Edition IET Wiring Regulations: Wiring Systems and Fault Finding for Installation Electricians, 7th Ed

This book deals with an area of practice that many students and non-electricians find particularly challenging. It explains how to interpret circuit diagrams and wiring systems, and outlines the principles of testing before explaining how to apply this knowledge to fault finding in electrical circuits. A handy pocket guide for anybody who needs to be able to trace faults in circuits, whether in domestic, commercial or industrial settings, this book will be extremely useful to electricians, plumbers, heating engineers and intruder alarm installers. Fully up to date with the 18th Edition IET Wiring Regulations 2018. Covers all the principles and practice of testing and fault diagnosis in a way that is clear for students and non-electricians. Expert advice from an engineering training consultant, supported with colour diagrams and key data. Cover 1 Half Title 2 Title Page 4 Copyright Page 5 Table of Contents 6 Preface 8 Chapter 1 Diagrams 10 BS EN 60617 Symbols 10 Diagrams 14 Circuit Convention 18 Constructing and Interpreting Circuit Diagrams 19 Heating and Ventilation System 21 Relay Logic 23 Programmable Logic Controllers 25 Drawing Exercises 30 Chapter 2 Wiring Systems 32 Radial Systems 32 Ring Circuits 33 Distribution Systems 34 Emergency Lighting Systems 40 Security and Fire Alarm Systems 41 Call Systems 49 Motor Starter Circuits 49 Central Heating Systems 52 Extra Low-Voltage Lighting 57 Domestic Telephone Systems 58 Chapter 3 Testing and Test Instruments 62 Measurement of Electrical Quantities 62 Selection of Test Instruments 63 Approved Test Lamps and Voltage Indicators 64 Accidental RCD Operation 65 Calibration, Zeroing and Care of Instruments 65 Continuity of Protective Conductors 66 Continuity of Ring Final Circuit Conductors 69 Insulation Resistance 74 Polarity 76 Earth Fault Loop Impedance 78 Earth Electrode Resistance 84 Functional Testing 88 Prospective Fault Current 90 Chapter 4 Fault Finding 92 Signs and Symptoms 93 Ring and Radial Socket Outlet Circuits 94 Radial Circuits Feeding Fixed Equipment 95 Cable Fault Location 96 Emergency Lighting 98 Security and Fire Alarm Systems 98 Call Systems 99 Central Heating Systems 100 Motor Starter Circuits 100 Solar PV Systems 104 Conclusion and a Cautionary Tale 105 Appendix 1 Shock Risk and Safe Isolation 106 Electric Shock 106 Safe Isolation of Supplies 111 Appendix 2 Basic Electrical Theory 112 Electrical Quantities and Units 112 Power, Current and Voltage 115 Appendix 3 Solutions 118 Quiz Controller (Chapter 1) 118 Index 120 "This book deals with an area of practice that many students and non-electricians find particularly challenging. It explains how to interpret circuit diagrams and wiring systems, and outlines the principles of testing before explaining how to apply this knowledge to fault finding in electrical circuits. A handy pocket guide for anybody that needs to be able to trace faults in circuits, whether in domestic, commercial or industrial settings, this book will be extremely useful to electricians, plumbers, heating engineers and intruder alarm installers"-- Provided by publisher This guide to wiring systems and fault finding explains how to interpret circuit diagrams and wiring systems, and outlines the principles of testing before explaining how to apply this knowledge to fault finding in electrical circuits, and is written for electricians, plumbers, heating engineers and intruder alarm installers as well as students. The non-electrician's guide to wiring systems - an essential reference for plumbers, heating engineers, television and intruder alarm installers. First Edition Published 1991 By Newnes, An Imprint Of Elsevier.