Masterclock, Inc.
phone(USAandCanada):18009402248|phone(international):+16367243666email:[email protected]|online:www.masterclock.com
Installation:
Formaximumprotectioninstalltwosurgearrestors,oneoutside,eitherclosetotheantennaoratthepointwherethecoaxialcableentersthebuildingandasecondasclosetothereceivingequipment.Agoodruleofthumbtorememberisthatalllinesenteringorexitingabuildingneedprotection.
TheSA90isabidirectionalRFdevice.EitherRFportmaybeconnectedtotheequipmentsideortheantennasideofthetransmissionlineinterfacetoprovideprotection.DonotleavetheRFportsexposedwheninstalledoutdoors.
Thesurgearrestormustbegroundedbyattachingagroundwiretothegroundinglug.Thiswiremustbeattachedtoamastergroundbarorthesystemsearthgroundingtoensurealowimpedancepathtoground.Duringinstallation,allgroundingcontactsurfacesmustbeclean,dry,andfreeofoxidation.
GroundingRecommendations:
Aprotectionsystemwithapoorgroundisthesameashavingnoprotectionatall.
Recommendedgroundsaretheutilitycompanyground,agroundrod,wellcasings,andcoldwaterpipesthatareofcontinuousmetal.Anoteofcaution,sometimesthemetalcoldwaterpipesarerepairedand/orextendedPVCpiping.TheintroductionofPVCmaterialrendersthecoldwaterpipegroundunacceptable.AthoroughinvestigationofacoldwaterpipegroundisimportantsincethePVCrepairsorextensionsmaybecoveredbydrywall.Groundsthatareunacceptableincludesprinklerpipes,PVCpipe,conduit,buriedwireandanygroundthatcannotbeverified.
Bondingensuresthemosteffectiveground.Bondingtiesallofthegroundsinthebuildingtogetherelectrically.Ifthereisariseingroundpotentialandallofthegroundsarebonded,nodamagewilloccursinceitisdifferentialvoltagethatcausesproblems.
ItisabsolutelynecessarytomakesurethatthegroundusedfortheACpoweristhesameasthegroundusedforthedatalinesurgeprotectors.Acommongroundreferencemustbeachievedforallequipment.
Allgroundwiresmustbeasshortaspossibleanditisimperativethatthegroundwirenotbecoilednorloopeditmustbeasstraightaspossible.Regardingthediameterofthegroundwire:thelargerthebetter.
Finally,theearthgroundresistanceonwhichthewholegroundingsystemrelies,mustbelessthan5ohmsbetweenanytwopointswithinthegroundsystem.
102Surge Arrestor InstallationModel # SA90-SMA
WARNINGEnsurethattheantennaandcoaxialcablethatthesurgearrestorisprotectingisnotexposedtodirectlightningstrikes.Thisdeviceoffersnoprotectionforsuchstrikesandwillbedestroyed,alongwithwhateverequipmentthatitisconnectedto,byadirectstrike.
Notice:
Theinstallation,maintenance,orremovalofantennaandsurgearrestorsystemsrequiresqualified,experiencedpersonnel.Theseinstallationrecommendationsarewrittenforsuchpersonnel.Installationsofthistypeofenergysuppressionequipmentshouldbemadeinaccordancewithlocalsafetyandelectricalcodesandwithregardtogoodelectricalandengineeringpractices.Ifyouhavequestionsregardingtheuseofthistypeofproductwithrespecttoyourinstallation,contactalocallicensedelectricalcontractorforthelatestelectricalcodesandguidelines.InnoeventshallMasterclock,Inc.beliableforanydirect,indirect,special,incidental,orconsequentialdamagescausedfromtheinstallationoruseofthisproduct.
