Instalaciones electricas

Advanced Electrical Installation Work

To Joyce, Samantha and Victoria

Advanced Electrical Installation Work
FIFTH EDITION

TREVOR LINSLEY
Senior Lecturer Blackpool and The Fylde College

AMSTERDAM • BOSTON • HEIDELBERG • LONDON • NEW YORK • OXFORD PARIS • SAN DIEGO • SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Newnes is an imprint of Elsevier

Newnes An imprint of ElsevierLinacre House, Jordan Hill, Oxford OX2 8DP 30 Corporate Drive, Burlington, MA 01803 First published by Arnold 1998 Reprinted by Butterworth-Heinemann 2001, 2002, 2003 (twice), 2004 (twice) Fourth edition 2005 Fifth edition 2008 Copyright © 2008, Trevor Linsley. Published by Elsevier Ltd. All rights reserved The right of Trevor Linsley to be identified as the author of this work has been asserted inaccordance with the Copyright, Designs and Patents Act 1988 No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designsand Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England W1T 4LP. Applications for the copyright holder’s written permission to reproduce any part of this publication should be addressed to the publisher. Permissions may be sought directly from Elsevier’s Science and Technology Rights Department in Oxford, UK; phone:( 44) (0) 1865 843830; fax: ( 44) (0) 1865 853333; e-mail: permissions@elsevier.co.uk. You may also complete your request on-line via the Elsevier homepage (http://www.elsevier.com), by selecting ‘Customer Support’ and then ‘Obtaining Permissions’. Whilst the advice and information in this book is believed to be true and accurate at the date of going to press, neither the author nor the publishercan accept any legal responsibility or liability for any errors or omissions that may be made. British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library For information on all Newnes publications visit our website at www.newnespress.com ISBN 978-0-7506-8752-2 Typeset by Charon Tec Ltd., A Macmillan Company (www.macmillansolutions.com)Printed and bound in Great Britain

Contents
Preface Acknowledgements UNIT 1 – Application of health and safety and electrical principles Chapter 1 Statutory regulations and safe working procedures Chapter 2 Safe working practices and emergency procedures Chapter 3 Effective working practices Chapter 4 Electrical systems and components Chapter 5 Electricity supply systems, protection andearthing Chapter 6 Electrical machines and motors UNIT 2 – Installation (buildings and structures): inspection, testing and commissioning Chapter 7 Safe, effective and efficient working practices Chapter 8 Inspection, testing and commissioning UNIT 3 – Installation (buildings and structures): fault diagnosis and rectification Chapter 9 Fault diagnosis and repair Chapter 10 Restoring systems to workingorder Answers to Check your understanding Appendix A: Obtaining information and electronic components Appendix B: Abbreviations, symbols and codes Glossary of terms Index vii ix 1 3 51 77 95 181 227 251 253 311 347 349 373 381 383 385 387 397 v

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Preface
The 5th Edition of Advanced Electrical Installation Work has been completely rewritten in 10 Chapters toclosely match the 10 Outcomes of the City and Guilds qualification. The technical content has been revised and updated to the requirements of the new 17th Edition of the IEE Regulations BS 7671: 2008. Improved page design with new illustrations gives greater clarity to each topic. This book of electrical installation theory and practice will be of value to the electrical trainee working towards:...