Raymarine C Series Manual de Instalação Página 22

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3.1Generalcablingguidance
Cabletypesandlength
Itisimportanttousecablesoftheappropriatetypeandlength
Unlessotherwisestateduseonlystandardcablesofthecorrect
type,suppliedbyRaymarine.
Ensurethatanynon-Raymarinecablesareofthecorrectquality
andgauge.Forexample,longerpowercablerunsmayrequire
largerwiregaugestominimizevoltagedropalongtherun.
Routingcables
Cablesmustberoutedcorrectly,tomaximizeperformanceand
prolongcablelife.
DoNOTbendcablesexcessively.Whereverpossible,ensurea
minimumbendradiusof100mm.
Minimum bend of cable
100 mm (4 in) radius
Minimum bend
200 mm (8 in)
diameter
Protectallcablesfromphysicaldamageandexposuretoheat.
Usetrunkingorconduitwherepossible.DoNOTruncables
throughbilgesordoorways,orclosetomovingorhotobjects.
Securecablesinplaceusingtie-wrapsorlacingtwine.Coilany
extracableandtieitoutoftheway.
Whereacablepassesthroughanexposedbulkheadordeckhead,
useasuitablewatertightfeed-through.
DoNOTruncablesneartoenginesoruorescentlights.
Alwaysroutedatacablesasfarawayaspossiblefrom:
otherequipmentandcables,
highcurrentcarryingacanddcpowerlines,
antennae.
Strainrelief
Ensureadequatestrainreliefisprovided.Protectconnectorsfrom
strainandensuretheywillnotpulloutunderextremeseaconditions.
Circuitisolation
Appropriatecircuitisolationisrequiredforinstallationsusingboth
ACandDCcurrent:
Alwaysuseisolatingtransformersoraseparatepower-inverter
torunPC’s,processors,displaysandothersensitiveelectronic
instrumentsordevices.
AlwaysuseanisolatingtransformerwithWeatherFAXaudio
cables.
AlwaysuseanRS232/NMEAconverterwithopticalisolationon
thesignallines.
AlwaysmakesurethatPC’sorothersensitiveelectronicdevices
haveadedicatedpowercircuit.
Cableshielding
Ensurethatalldatacablesareproperlyshieldedthatthecable
shieldingisintact(e.g.hasn’tbeenscrapedoffbybeingsqueezed
throughatightarea).
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