EIS: Inspection Testing and Commissioning PDF
Preview EIS: Inspection Testing and Commissioning
Inspection, testing and commissioning ● Malcolm Doughton and John Hooper Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. This is an electronic version of the print textbook. Due to electronic rights restrictions, some third party content may be suppressed. Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. The publisher reserves the right to remove content from this title at any time if subsequent rights restrictions require it. For valuable information on pricing, previous editions, changes to current editions, and alternate formats, please visit www.cengage.com/highered to search by ISBN#, author, title, or keyword for materials in your areas of interest. Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. Inspection,testingandcommissioning ©2013,CengageLearningEMEA MalcolmDoughtonandJohnHooper ALLRIGHTSRESERVED.Nopartofthisworkcoveredbythecopyright hereinmaybereproduced,transmitted,storedorusedinanyform PublishingDirector:LindenHarris orbyanymeansgraphic,electronic,ormechanical,includingbutnot CommissioningEditor:LucyMills limitedtophotocopying,recording,scanning,digitizing,taping,Web EditorialAssistant:ClaireNapoli distribution,informationnetworks,orinformationstorageandretrieval ProjectEditor:AlisonCooke systems,exceptaspermittedunderSection107or108ofthe1976 UnitedStatesCopyrightAct,orapplicablecopyrightlawofanother ProductionController:EyvettDavis jurisdiction,withoutthepriorwrittenpermissionofthepublisher. MarketingManager:LaurenMottram Whilethepublisherhastakenallreasonablecareinthepreparationof Typesetter:S4CarlislePublishingServices thisbook,thepublishermakesnorepresentation,expressorimplied, Coverdesign:HCTCreative withregardtotheaccuracyoftheinformationcontainedinthisbook Textdesign:DesignDeluxe andcannotacceptanylegalresponsibilityorliabilityforanyerrorsor omissionsfromthebookortheconsequencesthereof. Productsandservicesthatarereferredtointhisbookmaybeeither trademarksand/orregisteredtrademarksoftheirrespectiveowners. Thepublishersandauthor/smakenoclaimtothesetrademarks.The publisherdoesnotendorse,andacceptsnoresponsibilityorliabilityfor, incorrectordefamatorycontentcontainedinhyperlinkedmaterial. Forproductinformationandtechnologyassistance, [email protected]. Forpermissiontousematerialfromthistextorproduct, andforpermissionqueries, [email protected]. BritishLibraryCataloguing-in-PublicationData AcataloguerecordforthisbookisavailablefromtheBritishLibrary. ISBN:978-1-4080-3995-3 CengageLearningEMEA CheritonHouse,NorthWay,Andover,Hampshire,SP105BE, UnitedKingdom CengageLearningproductsarerepresentedinCanadaby NelsonEducationLtd. Foryourlifelonglearningsolutions,visitwww.cengage.co.uk Purchaseyournextprintbook,e-bookore-chapterat www.cengagebrain.com Printed in Malta by Melita Press 1 2 3 4 5 6 7 8 9 10 – 14 13 12 Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. Dedication ● This series of studybooks is dedicated to the memory of Ted Stocks whose original concept, and his publication of the first open learning material specifically for electrical installation courses, forms the basis for these publications. His contribution to training has been an inspiration and formed a solid base for many electricians practising their craft today. iii Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. The Electrical Installation Series ● Legislation: Health and Organizing and Managing Principles of Design Installation Safety & Environmental the Work Environment and Maintenance Installing Wiring Systems Planning and Selection for Termination and Connection Electrical Systems of Conductors Fault Finding and Diagnosis Maintaining Electrotechnical Systems iv Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. Contents ● About the authors vi Part 2 Testing the continuity of protective Acknowledgements vii conductors 62 Study guide viii Part 3 Testing continuity of ring final circuit conductors 70 Unit Six Inspection, testing and Part 4 Testing insulation resistance 76 Part 5 Electrical separation, barriers and commissioning enclosures 83 Part 6 Polarity 86 1 Principles and regulatory Part 7 Earth electrode resistance 88 requirements for safe 5 Testing and commissioning an isolation 2 installation (Part 2) 95 Part 1 The Electricity at Work Regulations 3 Part 2 The need for safe isolation 5 Part 1 Supply polarity and earth electrode Part 3 Safe isolation procedures 8 testing 97 Part 4 Health and safety requirements 14 Part 2 Earth fault loop impedance testing 101 2 Principles and regulatory Part 3 Prospective fault current testing 108 Part 4 Testing RCDs 111 requirements for inspecting, Part 5 Phase sequence, functional testing testing and commissioning 18 and voltage drop 117 Part 1 Purpose of inspection and testing 19 Part6Documentation andclientliaison 121 Part 2 Documentation 23 Part 3 Information required 26 6 Certificates and documentation 126 3 Inspecting electrical Part 1 Forms of certification 128 installations 33 Part 2 Information recorded on forms of Part 1 Requirements of inspection 35 certification 133 Part 2 Carrying out the inspection 37 Part 3 The certification process 146 Part 3 Specific inspection items 40 Appendix 1: Certificates 152 Part 4 General inspection items 46 End test 163 Progress check 52 Answer section 169 Glossary 177 4 Testing and commissioning an Index 178 installation (Part 1) 55 Part 1 General requirements for testing 57 v Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. About the authors ● Malcolm Doughton John Hooper Malcolm Doughton, I.Eng, MIET, LCG, has ex- John Hooper spent many years teaching a perience in all aspects of electrical contracting diverse range of electrical and electronic subjects and has provided training to heavy current from craft level up to foundation degree level. electrical engineering to HNC level. He currently Subjects taught include: Electrical Technology, provides training on all aspects of electrical in- Engineering Maths, Instrumentation, P.L.C.s, stallations, inspection, testing, and certification, Digital, Power and Microelectronic Systems. health and safety, PAT and solar photovoltaic John has also taught various electrical engineer- installations. In addition, Malcolm provides nu- ing subjects at both Toyota and JCB. Prior to merous technical articles and is currently man- lecturing in further and higher education he aging director of an electrical consultancy and had a varied career in both electrical engineering training company. and electrical installations. vi Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. Acknowledgements ● The authors and publisher would like to thank Chris Cox and Charles Duncan for their considerable contribution in bringing this series of studybooks to publication. We extend our grateful thanks for their unstinting patience and support throughout this process. The authors and publisher would also like to thank the following for providing pictures for the book: Brady Corporation HSE Ideal Industries Ltd. IET Kewtech Martindale MK Electric Olimat A special thank you to the ECA for providing the examples of Electrical Certificates and to Megger for supplying equipment for images in this book. Every effort has been made to contact the copyright holders. This book is endorsed by: Founded in 1901, the Electrical Contractors’ Association (ECA) is the UK’s leading trade association representing the interests of contractors who design, install, inspect, test and maintain electrical and electronic equipment and services. www.eca.co.uk vii Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. Study guide ● Thisstudybookhasbeenwrittenandcompiledtohelpyougainthemaximumbenefitfromthematerial containedinit.Youwillfindprompts forvariousactivities allthe waythroughthestudybook.Theseare designedtohelpyouensureyouhaveunderstoodthesubjectandkeepyouinvolvedwiththematerial. Where you see ‘Sid’ as you work through the studybook, he is there to help you, and the activity ‘Sid’ is undertaking will indicate what it is you are expected to do next. Task Familiarize yourself with the requirements of BS 7671, Section 526 Electrical Connections before you continue with this chapter. Task A‘Task’is anactivity thatmay take youaway from the book todofurther research either from other materialor tocomplete a practicaltask. For these tasks youare given theopportunity toask colleagues atwork oryour tutor atcollege questions aboutpracti- cal aspects of the subject. There are also tasks where you may be required to use manufacturers’ catalogues to look up your answer. Theseareallimportantandwillhelpyourunderstandingofthesubject. Try this List five factors that must be considered before carrying out an insulation resistance test. 1 __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2 __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 3 __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 4 __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 5 __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Trythis A‘Trythis’isanopportunityforyoutocompleteanexercisebasedonwhatyouhavejustread,ortocompleteamathematical problembasedononethathasbeenshownasanexample. viii Copyright 2012 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
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