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Itisrecommendedthatbestpracticeisobservedinallvesselelectricalinstallations,asdetailed

inthefollowingstandards:

•BMEACodeofPracticeforElectricalandElectronicInstallationsinBoats

•NMEA0400InstallationS

tandard

•ABYCE-11AC&DCElectricalSystemsonBoats

•ABYCA-31BatterychargersandInverters

•ABYCTE-4LightningProtection

Grounding—Dedicateddrainwire

Thepowercablesuppliedwiththisproductincludesadedicatedshield(drain)wireforconnectionto

avessel'sRFgroundpoint.

ItisimportantthataneffectiveRFgroundisconnectedtothesystem.Asinglegroundpointshould

beusedforallequipment.Theunitcanbegroundedbyconnectingtheshield(drain)wireofthe

powercabletothevessel'sRFgroundpoint.OnvesselswithoutanRFgroundsystemtheshield

(drain)wireshouldbeconnecteddirectlytothenegativebatteryterminal.

Thedcpowersystemshouldbeeither:

•Negativegrounded,withthenegativebatteryterminalconnectedtothevessel'sground.

•Floating,withneitherbatteryterminalconnectedtothevessel'sground

Warning:Positivegroundsystems

Donotconnectthisunittoasystemwhichhaspositivegrounding.

Grounding—additionaldedicateddrainwirerequired(CP470only)

TheCP470requiresanadditionaldedicateddrainwire .Thiswiresupplementsthedrainwire(shield)

thatispartoftheproduct’spowercable.

CP470sonarmodule—additionalgroundingconnection

Raymarine CP570 User Manual

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