Raymarine CP450C - Page 28

Note:
•Cablelengthisthedistancebetweenthepowersourceand
theunit.
•Thesewiresizesgiveatotaldropofabout0.5Vbetweenthe
powersourceandtheunit,achievingaminimumvoltageatthe
unitof10.5Vwithafullyatbatteryat11V.
Sharingabreaker
Wheremorethan1pieceofequipmentsharesabreakeryoumust
provideprotectionfortheindividualcircuits.E.g.byconnectingan
in-linefuseforeachpowercircuit.
D11637-1
+VE bar
Circuit breaker
FuseFuse
-VE bar
Where possible, connect individual items of
equipment to individual circuit breakers.
Where this not possible, use individual in-line
fuses to provide the necessary protection.
Warning:Productgrounding
Beforeapplyingpowertothisproduct,ensureithas
beencorrectlygrounded,inaccordancewiththe
instructionsinthisguide.
Grounding—Dedicateddrainwire
Thepowercablesuppliedwiththisproductincludesadedicated
shield(drain)wireforconnectiontoavessel’sRFgroundpoint.
ItisimportantthataneffectiveRFgroundisconnectedtothe
system.Asinglegroundpointshouldbeusedforallequipment.
Theunitcanbegroundedbyconnectingtheshield(drain)wireof
thepowercabletothevessel’sRFgroundpoint.Onvesselswithout
anRFgroundsystemtheshield(drain)wireshouldbeconnected
directlytothenegativebatteryterminal.
Thedcpowersystemshouldbeeither:
•Negativegrounded,withthenegativebatteryterminalconnected
tothevessel’sground.
•Floating,withneitherbatteryterminalconnectedtothevessel’s
ground
Warning:Positivegroundsystems
Donotconnectthisunittoasystemwhichhaspositive
grounding.
28CP450C