How Lightning Surge Protection Devices Protect Against Indirect Strikes
Insomecases,customerscanaskforlightningprotectiononly,withtheassumptionthatlightning protectionalonewillprovidealltheprotectiontheyneed.Ifasitedoesn’thavepropergrounding andbondinginplace,theearthpotentialrisecausedbyalightningstrikemayresultinarcingand sideflashingbetweenmetallicobjectsonthesiteandcausedamageoftheelectricalequipment. Costscanrangefromdegradationofelectricalorelectronicsystems,todatalossandequipment destruction.Someofthesecostscanappearrelativelyminor,butthelossofanessentialserviceor revenueassociatedwithafacilityorplantshutdowncanbeenormous.Thelightningprotectionand groundingsystemsdissipatemostoftheenergytotheearth.However,residualenergycanstill harmsensitiveelectronicsystems,whichiswhytheimplementationoflightningsurgeprotection devicesisequallyimportant.
Secondly,anytimeyouhaveawirecomingintoabuildingfromtheoutsideworld,thatwireis perfectlycapabledeliveringalltypesofmischiefintothefacility,thisiswhylightningsurge protectiondevicesshouldbeinstalled.
AnSPDisadevicethatbecomesconductiveat somevoltage.Asthepotentialrisesandthe SPDbecomesconductive,itshuntsthesurge backtowhereitcame.Thisisrequiredby NFPA780andULbothonallserviceswhere theyenterthestructure(ACpower,telephone, RF,data,etc.)
1. Usepoint-of-usesurgeprotectiondevices(SPDs), whichprotectelectronicsandapplianceswhen combinedwithagoodgroundingsystem.
2. Haveaprofessionalchecktoensurethatthe groundingsystemisuptocodebeforeinstalling anynewlightningsurgeprotectiondevice.
3. ExploretheoptionofpanelSPDs,whichmountin oronthemainelectricalpaneltoprovide protectionfortheentireelectricalsystem.
Here are 3 quick surge protection tips that you as a facility owner, need to know:
LEC’slightningsurgeprotectiondeviceoffering integratesinnovativedesigns,modernfeaturesand proprietarytechnology,protectingagainstsudden andmomentarytransients,aswellaslong-term exposuretoTemporaryOverVoltages(TOVs).All thesebenefitsarepartofoursuperiorperformance whenitcomestotheSPDoffering,plusmaxsurge ratingsandcompliancewithkeyindustry standardsincludingIEC,ULandmore.
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