Raymarine AIS650 - Page 47

Warning:Productgrounding
Beforeapplyingpowertothisproduct,ensureithas
beencorrectlygrounded,inaccordancewiththe
instructionsinthisguide.
Grounding
ThefollowingrequirementsapplywhengroundingRaymarine
equipmentwhichdoesnothaveadedicateddrainwireorshield:
Commongroundpoint
Thenegativewiremustbeconnectedtoabondedcommonground
point,i.e.withthegroundpointconnectedtobatterynegative,and
situatedascloseaspossibletothebatterynegativeterminal.
D117 05-1
1 3
2
1.Powercabletodisplay
2.Bondedcommongroundconnection
3.Battery
Implementation
Ifseveralitemsrequiregrounding,theymayberstbeconnected
toasinglelocalpoint(e.g.withinaswitchpanel),withthispoint
connectedviaasingle,appropriately-ratedconductor,totheboat’s
commonground.
Thepreferredminimumrequirementforthepathtoground(bonded
ornon-bonded)isviaaattinnedcopperbraid,witha30Arating
(1/4inch)orgreater.Ifthisisnotpossible,anequivalentstranded
wireconductormaybeused,ratedasfollows:
•forrunsof<1m(3ft),use6mm
2
(#10AWG)(6mm)orgreater.
•forrunsof>1m(3ft),use8mm
2
(#8AWG)orgreater.
Inanygroundingsystem,alwayskeepthelengthofconnecting
braidorwiresasshortaspossible.
Important:DoNOTconnectthisproducttoapositively-grounded
powersystem.
References
•ISO10133/13297
•BMEAcodeofpractice
•NMEA0400
Connectingpower
Theuseofcrimpedandsolderedlugsisrecommended,toprovide
optimumconnectiontothepowersource.
ConnectyourAISunit’spowercabletoeithera12Vdcor24Vdc
powersourceasfollows:
1.Connecttheredwiretothe5Afuseorequivalentautomatic
circuitbreakertothesupplypositiveterminal.
2.Connecttheblackwiretothesupplynegativeterminal.
AIS650ClassBtransceiver
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