Sailor 500 FleetBroadband Installation Manual
Also see for 250 FleetBroadband: User manualUser manual
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Contents
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Appendix C: Grounding and RF protection112 General about marine groundingC.3 General about marine groundingC.3.1 Ground termsThere is great confusion about the different ground terms used when dealingwith marine electrical installations. A distinction between the various terms islisted below for reference.C.3.2 DC NegativeActually not a ground but a current-carrying conductor which carries the samecurrent that flows in the positive conductor. The DC Negative may beelectrically connected to seawater (at one point only, via the engine negativeterminal though the shaft and the propeller) or left completely floating.C.3.3 Lightning GroundGround potential immersed in seawater. Provides a path to ground lightningstrike energy. Please note that this is not a functional part of any otherelectrical system.C.3.4 Corrosion System GroundBonding arrangement that ensures equal electrical potential for all dissimilarunderwater metal parts and provides galvanic protection by means ofsacrificial anodes.C.3.5 AC Ground (Protective Earth)Ground potential immersed in seawater (typically the hull for steel andaluminum vessels). Serves as safety ground (protective earth) thus preventingshocks or electrocution in the event of a fault situation. |
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