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8IOWASTRAYVOLTAGEGUIDEPROPERFARMWIRINGSUMMARYCustomerNameUtilityRepresentativeDateAddressCityStateZIPNoteAnelectricalinspectionwasnotdoneaspartoftheutilitystrayvoltageinvestigation.Electricalsystemimprovementsandasafetyreviewshouldbedonebyaqualifiedelectrician.InstallationshouldbedoneinaccordancewiththeNationalElectricalCodeasmodifiedbyspecificstateelectricalcodes.Thisisagenerallistoffarmwiringpractices.FarmGroundingThecentraldistributionpointandeachbuildingserviceentranceonthefarmshouldbegroundedtotwodrivengroundingelectrodesspacedatleastsixteenfeetapart.Thegroundingelectrodeconductorfromtheserviceentrancesshouldbecontinuousandanapprovedgroundingelectrodeconnectorinstalledthatiscleanandtight.Anyundergroundmetallicwaterpipeshouldbegroundedtothebuildingserviceentrancewithin5feetfromthepointwhereitentersthebuilding.UseUFwireorPVCconduitinbuildingswhereanimalsarehousedastheydonotdegradeundermoistandcorrosiveconditions.Installcorrosion-resistantdustproofweatherproofandwatertightboxesconnectorslightfixturesandequipmentwhicharedesignedspecificallyforanimalhousingconditions.NeutralandEquipmentGroundingSplitboltconnectorsshouldbereplacedwithcompressionconnectors.Usecompressionconnectorswheneverinstallingnewwiring.Terminationslugsinserviceentrancesshouldbecleanandtight.Anequipmentgroundingconductorshouldberuntoallequipment.120voltequipmentshouldhavethreeconductorsaphaseaneutralandanequipmentground.240voltequipmentshouldhavethreeconductorstwophasesandanequipmentground.Onlyoneelectricalsourceshouldbeextendedtoabuilding.Theserviceentranceineachbuildingshouldsupplypowertosubpanelswhenadditionalelectricalpanelsarerequiredwithinthesamebuildingusingafour-wiresystemconsistingoftwophaseconductorsaneutralconductorandanequipmentgroundingconductor.Balancing120voltloadssoequal120voltloadsaretakenoffeachphaseconductorwithintheservicepanelwillreducetheamountofcurrentloadflowingontheneutralconductor.Neutralcurrentcancontributetostrayvoltage.Wheneverpossibleuse240voltequipmentinsteadof120volt.Equipmentoperatingat240voltsdoesnotusetheneutralconductorandreducesthepotentialforstrayvoltage.Installafour-wiresystemforsinglephaseserviceorfive-wiresystemforthreephaseservicefromthecentraldistributionpointtotheserviceentrancepanelsateachbuilding.Asinglephaseserviceincludestwophaseconductorsaneutralconductorandanequipmentgroundingconductor.Thebondingscrewisleftoutoftheneutralbartokeepseparationofthegroundingandneutralsystemswithinthepanel.Theneutralandequipmentgroundingconductorsremainseparateuntiltheyareconnectedatthecentraldistributionpoint.ElectricFencersandTrainersSpecial20000voltinsulatedleadoutwireshouldbeusedonhotterminals.Thecontrollersshouldhavegroundingsystemsindependentofanybuildinggroundingsystem.Thegroundingwireforeachenergizershouldconsistof600voltinsulated8orlargercopperwireleadingtoaseparategroundingsystemconsistingofatleasttwo8groundingelectrodesinstalledatleasteightfeetapart.Thisgroundingsystemshouldbeplacedatleast25feetfromthebuildingselectricalgroundingandundergroundmetallicwaterlines.Fornewinstallationsselectlivestockwatererswith240voltheatingelementsandinstallgroundequipotentialplanesateachwaterertoincreasesafetyandreducevoltageexposure.Existing120voltelectricallyheatedwaterersshouldbeproperlywiredwithaphaseneutralandequipmentgroundingconductorsaccordingtomanufacturersspecifications.Twodrivengroundingelectrodesshouldbeconnectedtothewaterer.WhenremodelingmakingadditionsorbuildingnewlivestockfacilitiesInstallanequipotentialplaneintheconcreteandbondallmetallicstructurestoit.Considerupgradingto3phaseserviceifyouareincreasingyourelectricalloadorinstallinglargemotors.Electricalitemsthatmayrequirefurtherattentiononyourfarm_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________