Raymarine Satellite TV Systems Technical Information download pdf (Page 17)

•Theproductpowercabledrainconductor(screen)mustbe

connectedtoacommongroundpoint.

•Itisrecommendedthatthecommongroundpointisabonded

ground,i.e.withthegroundpointconnectedtobatterynegative,

andsituatedascloseaspossibletothebatterynegativeterminal.

Ifabondedgroundsystemisnotpossible,anon-bondedRF

groundmaybeused.

Bondedgroundsystem(preferred)

D117 09-1

1 2 4

RFgroundsystem(alternative)

D117 10-1

1 2 4

1.Powercabletoproduct

2.Drain(screen)

3.Bonded(preferred)ornon-bondedRFground.

4.Battery

Implementation

Ifseveralitemsrequiregrounding,theymayrstbeconnected

toasinglelocalpoint(e.g.withinaswitchpanel),withthispoint

connectedviaasingle,appropriately-ratedconductor,totheboat’s

commonground.Thepreferredminimumrequirementforthepath

toground(bondedornon-bonded)isviaaattinnedcopperbraid,

witha30Arating(1/4inch)orgreater.Ifthisisnotpossible,an

equivalentstrandedwireconductormaybeused,ratedasfollows:

•forrunsof<1m(3ft),use6mm

(#10AWG)orgreater.

•forrunsof>1m(3ft),use8mm

(#8AWG)orgreater.

Inanygroundingsystem,alwayskeepthelengthofconnecting

braidorwiresasshortaspossible.

Important:DoNOTconnectthisproducttoapositively-grounded

powersystem.

References

•ISO10133/13297

•BMEAcodeofpractice

•NMEA0400

Extendingcableruns

Note:Systemperformancewillbereducedifsuppliedcables

areextended.

Installation

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Raymarine Satellite TV Systems Technical Information Page 17