Electrical interference handbook

Description

Monograph, the 2nd edition, Newnes, Oxford (GB), 1998, pg. 271Electrically operated items are commonplace today, be they in the house, industry or around us. Their sophistication has made life easier, but their very proliferation has led to a greater need to guard against mutual interference. This book is aimed at those concerned with protection and who are technically educated, but need a better awareness of the causes and effects of electromagnetic compatibility (EMC).Just as a well-cooked food can be ruined in the presentation, so well-designed equipment can have its EMC protection ruined by illconsideredinstallation. The measures needed to avoid spectrum pollution and protect from the electromagnetic environment are outlined in a hopefullyreadable and understandable fashion. Additional material which does not need to be read for general understanding of the subject has been included and is identified by a different print font.Technological advances in the various sciences have taken many tasks out of our daily existence, but some have added new problems. Some of these problems are life threatening, others merely a nuisance - electromagnetic interference can fall into both categories. Authenticated cases of the effects of interference, some aspects of which have been studied by the author, have included:• military fly-by-wire aircraft crashing after flying low over a high power radar transmitter;• a private car crashing into a bus stop and killing people when a passing taxi radio interfered with the ABS braking system;• mobile telephones interfering with hospital life-support equipment;• car remote locking systems being incapacitated when close to police station transmitters in the UK;• a computer screen turning blue and corrupting text due to the magnetic fields from an underground electric train;• the electric fields from the arcing of the power pick-up on electric trains interfering with the track-borne signalling;• early electric petrol pumps being made to deliver free petrol when subjected to the nearby fields from a car-mounted high power radio;• television screens being interfered with by an electric hair dryer.CONTENTS:IntroductionDirectives, regulations and standardsNational authorities and standardsThe EMC environmentRadio wave propagationSusceptibility /immunityEmission and susceptibility protectionConducted interferenceInstallationTestingManagementDomestic and white goods community aspectsInformation technology aspectsArchitectural interestsTransport community interestsMedical equipment aspectsElectrical security aspectsIllumination aspectsAppendixIndex