17th Edition IET Wiring Regulations, Electric Wiring for Domestic Installers Fourteenth Edition By Brian Scaddan Book

17th Edition IET Wiring Regulations, Electric Wiring for Domestic Installers Fourteenth Edition By Brian Scaddan
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Contents

PREFACE ………………………………………………………………………………………… vii

CHAPTER 1 The UK Generation, Transmission and Distribution System ……… 1

Voltage Bands …………………………………………………………………………………… 2

The Electricity Safety, Quality and Continuity Regulations 2002 (ESQCR) ……… 5

The Electricity at Work Regulations 1989 ……………………………………………….. 5

The IET Wiring Regulations (BS 7671) …………………………………………………… 6

The Building Regulations 2000 Part ā€˜Pā€™ …………………………………………………. 6

Earthing Systems …………………………………………………………………………….. 12

CHAPTER 2 Domestic Electrical Installations……………………………………….. 17

The Main Intake Position …………………………………………………………………… 17

Circuits ………………………………………………………………………………………….. 23

Cables …………………………………………………………………………………………… 36

Wiring Systems and Installation Methods ……………………………………………… 40

CHAPTER 3 The Importance of Earthing and Bonding …………………………… 55

Electric Shock …………………………………………………………………………………. 55

Basic Protection ………………………………………………………………………………. 57

Fault Protection ……………………………………………………………………………….. 57

What is Earth and Why and How Do We Connect to it? ……………………………. 58

Residual Current Devices ………………………………………………………………….. 65

Bonding: Questions and Answers ……………………………………………………….. 66

The Faraday Cage ……………………………………………………………………………. 68

CHAPTER 4 Bathrooms ……………………………………………………………………. 69

Zone 0 …………………………………………………………………………………………… 69

Zone 1 …………………………………………………………………………………………… 70

Zone 2 …………………………………………………………………………………………… 71

Supplementary Equipotential Bonding …………………………………………………. 72

CHAPTER 5 Protection …………………………………………………………………….. 73

Protection Against Mechanical Damage ……………………………………………….. 74

Protection of Persons/Livestock Against Dangers …………………………………… 76

CHAPTER 6 Circuit Design ……………………………………………………………….. 85

Diversity …………………………………………………………………………………………. 86

Basic Circuit Design …………………………………………………………………………. 88

Summary ……………………………………………………………………………………….. 99

CHAPTER 7 Inspection and Testing ………………………………………………….. 101

Instruments ………………………………………………………………………………….. 101

Testing …………………………………………………………………………………………. 107

CHAPTER 8 Security Alarm and Telephone Systems ……………………………. 127

Security Alarms ……………………………………………………………………………… 127

Telephone Systems ………………………………………………………………………… 129

APPENDIX 1 Basic Electrical Theory Revision …………………………………….. 133

Electrical Quantities and Units ………………………………………………………….. 133

Power, Current and Voltage ……………………………………………………………… 137

APPENDIX 2 Conductor Identifi cation, Notices and Warning Labels……….. 139

Conductor Identification………………………………………………………………….. 139

Notices and Warning Labels…………………………………………………………….. 140

INDEX …………………………………………………………………………………………. 141