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About the book
Place of Publication: United Kingdom;
Pages: 143 pages;
Size: 2 Mb;
Author: Brian Scaddan;
First Published: 2019;
This popular guide provides an understanding of basic design criteria and calculations, along with current inspection and testing requirements and explains how to meet the requirements of the IET Wiring Regulations.
The book explains in clear language those parts of the regulations that most need simplifying.
There are common misconceptions regarding bonding, voltages, disconnection times and sizes of earthing conductors.
This book clarifies the requirements and outlines the correct procedures to follow.
This provides an affordable reference for all electrical contractors, technicians and other workers involved in designing and testing electrical installations. The content covers the requirements for both City & Guilds and EAL courses, and contains sample exam questions and answers. It also makes an ideal revision guide.
Fully up to date with the 18th Edition of IET Wiring Regulations.
- Simplifies the advice found in the Wiring Regulations, explaining what they mean in actual working practice for design and testing.
- Expert advice from an engineering training consultant, supported with colour diagrams, examples and key data.
CHAPTER 1 Design
Assessment of General Characteristics
Protection for Safety
Protection Against Electric Shock
Protection Against Thermal Effects (IET Regulations Chapter 42)
Protection Against Overcurrent
Protection Against Overload
Protection Against Fault Current
Protection Against Undervoltage (IET Regulations Section 445)
Protection Against Voltage and Electromagnetic Disturbances
(Chapter 44 and Section 534)
Isolation and Switching
CHAPTER 2 Inspection and Testing
Approved Test Lamps and Indicators
Calibration, Zeroing/Nulling and Care of Instruments
Continuity of Protective Conductors
Continuity of Ring Final Circuit Conductors
Ring Final Circuits
Earth Electrode Resistance
External Loop Impedance
Earth Fault Loop Impedance
CHAPTER 3 Special Locations IET Regulations Part 7
BS 7671 Section 701: Bathrooms, etc.
BS 7671 Section 702: Swimming Pools and Other Basins
BS 7671 Section 703: Hot Air Saunas
BS 7671 Section 704: Construction Sites
BS 7671 Section 705: Agricultural and Horticultural Locations
BS 7671 Section 706: Conductive Locations with Restrictive Movement
BS 7671 Section 708: Caravan and Camping Parks
BS 7671 Section 709: Marinas
BS 7671 Section 710: Medical Locations
BS 7671 Section 711: Exhibitions, Shows and Stands
BS 7671 Section 712: Solar Photovoltaic (PV) Supply Systems
BS 7671 Section 717: Mobile or Transportable Units
BS 7671 Section 721: Caravans and Motor Caravans
BS 7671 Section 729: Operating and Maintenance Gangways
BS 7671 Section 730: Onshore Units of Electrical Connections for Inland
BS 7671 Section 740: Amusement Devices, Fairgrounds, Circuses, etc.
BS 7671 Section 753: Floor and Ceiling Heating Systems
APPENDIX 1 BS 7671 Appendices
APPENDIX 2 Sample Questions
APPENDIX 3 Suggested Solutions to Sample Questions
APPENDIX 4 MIMS and SWA CPC sizes and corrected Zs values