Raymarine RAY91 - Page 53

1
Positive(+)bar
2
Negative(-)bar
3Circuitbreaker
4Fuse
•Inallcases,observetherecommendedbreaker/fuseratingsprovidedintheproduct’s
documentation.
Important:
Beawarethatthesuitablefuseratingforthethermalbreakerorfuseisdependentonthenumber
ofdevicesyouareconnecting.
Powercableextension
Ifyouneedtoextendthelengthofthepowercablesuppliedwithyourproduct,ensureyouobserve
thefollowingadvice:
•Thepowercableforeachunitinyoursystemshouldberunasaseparate,singlelengthof2-wire
cablefromtheunittothevessel'sbatteryordistributionpanel.
•Forpowercableextensions,aminimumwiregaugeof16AWG(1.31mm
2
)isrecommended.For
cablerunslongerthan15meters,youmayneedtoconsiderathickerwiregauge(e.g.14AWG
(2.08mm
2
),or12AWG(3.31mm
2
)).
•Animportantrequirementforalllengthsofpowercable(includinganyextension)istoensure
thatthereisacontinuousminimumvoltageof10.8Vattheproduct’spowerconnector,witha
fullyflatbatteryat11V.
Important:Beawarethatsomeproductsinyoursystem(suchassonarmodules)cancreatevoltage
peaksatcertaintimes,whichmayimpactthevoltageavailabletootherproductsduringthepeaks.
Grounding
Ensurethatyouobserveanyseparategroundingadviceprovidedintheproduct’sdocumentation.
Moreinformation
Itisrecommendedthatbestpracticeisobservedinallvesselelectricalinstallations,asdetailed
inthefollowingstandards:
•BMEACodeofPracticeforElectricalandElectronicInstallationsinBoats
•NMEA0400InstallationStandard
•ABYCE-11AC&DCElectricalSystemsonBoats
•ABYCA-31BatterychargersandInverters
•ABYCTE-4LightningProtection
Cablesandconnections53