17th edition iee wiring regulations explained and illustrated eighth edition pdf

As a result of many years developing and teaching courses devoted
to compliance with the IEE Wiring Regulations, it has become apparent to me that many operatives and personnel in the electrical contracting industry have forgotten the basic principles and concepts upon which electric power supply and its use are based.
As a result of this, misconceived ideas and much confusion have
arisen over the interpretation of the Regulations.

It is the intention of this book to dispel such misconceptions and
to educate and where necessary refresh the memory of the reader.
In this respect, emphasis has been placed on those areas where
most confusion arises, namely earthing and bonding, protection,
and circuit design.

The current seventeenth edition of the IEE Wiring Regulations, also known as BS 7671, to which this book conforms, was published in January 2008. This book is not a guide to the Regulations or a replacement for them; nor does it seek to interpret them Regulation by Regulation. It should, in fact, be read in conjunction with them; to help the reader, each chapter cites the relevant
Regulation numbers for cross-reference.

It is hoped that the book will be found particularly useful by college students, electricians and technicians, and also by managers of smaller electrical contracting firms that do not normally employ engineers or designers. It should also be a useful addition to the
library of those studying for the C &G 2382 series qualifications.

It was once said, by whom I have no idea, that ‘rules and regulations are for the guidance of wise men and the blind obedience of fools ’. This is certainly true in the case of the IEE Wiring
(BS 7671) Regulations. They are not statutory rules, but recommendations for the safe selection and erection of wiring installations. Earlier editions were treated as an ‘electrician ’s Bible ’: the
Regulations now take the form primarily of a design document.

The IEE Wiring Regulations are divided into seven parts. These
follow a logical pattern from the basic requirements to inspection
and testing of an installation and finally to the requirements for
special locations:

Part 1 indicates the range and type of installations covered by the
Regulations, what they are intended for, and the basic requirements for safety.
Part 2 is devoted to the definitions of the terms used throughout
the Regulations.
Part 3 details the general information needed and the fundamental
principles to be adopted before any design work can usefully proceed.
Part 4 informs the designer of the different methods available for
protection against electric shock, overcurrent, etc., and how to
apply those methods.

Part 5 enables the correct type of equipment, cable, accessory, etc.
to be selected and erected in accordance with the requirements of
Parts 1–4.

Part 6 provides details of the relevant tests to be performed on a
completed installation before it is energized.
Part 7 deals with particular requirements for special installations
and locations such as bathrooms, swimming pools, construction
sites, etc.