>> P.18
Lightningexample[factory]Variouscablesarelaidinthefactory.RemotemonitoringofthefactoryandtheheadofceusingserialcommunicationsuchasRS485factorypremises,pumpcontrol,communication,wiringsuchasITVcamerasareconnectedbetweenthefactoryandtheannex.Outdoorwiringcreatesapotentialdifferencebetweengrounds,theentranceofeachwiringtosuppressthepotentialdifference.isperformedtomonitorTheproductionequipment,andevenwithinthetheeffectsofinstalledatincreasinglightningsurges.Therefore,SPDsareAirconditioningequipmentForsignallineForpowerlineLightningreceivingpart(lightningrod)CubicletypehighvoltagepowerreceivingequipmentForhighvoltageForlowvoltageutForpowerliedistributionboardsForcontrolboardsdustaeuetUPSShortinterruption18duteuettForRS485lineForLAN
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