yolo
Ensign
Posts: 626
Location: Back to Manasquan Inlet, NJ
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Post by yolo on Jul 28, 2014 11:38:16 GMT -6
I had lost my fuel tank level reading on my smart craft gauges last week while pulling the wiring on my boat apart. After taking a look I realized that I disconnected the ground from the sender that was, for some reason, wire tied to the constant power wire for my receiver (one of the 1000000000 reasons I have decided to rewire the boat mid summer).
Now for the question- Looking a bit further I have also found a green wire that is attached to the sender on the fuel tank that seems to run up near the fuel vent and fill. Would anyone be able to explain this wire to me?
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Post by freezerfiller on Jul 28, 2014 12:26:38 GMT -6
From USCG
Each metallic component of the fuel fill system and fuel tank which is in contact with fuel must be statically grounded so that the resistance between the ground and each metallic component of the fuel fill system and fuel tank is less than 100 ohms.
Fuel flowing from the dispensing nozzle into a fuel tank is a potential source of a static electric charge which could cause a spark between the dispensing nozzle and metal component of the fuel tank fill system. To prevent such a spark from occurring, metallic components of the fuel tank fill system and metallic fuel tanks must be grounded.
Grounding or bonding may be accomplished by connecting the metallic components electrically by running a wire from one component to the next, and so forth to the boat’s ground. Grounding can usually be accomplished by a connection to the common bonding conductor or the engine negative terminal.
If the fuel tank deck fill fitting is nonmetallic, and nonconductive hose is used as a fill pipe, there is no need for grounding the fill fitting. Chrome-plated plastic fill fittings are treated the same as metallic fittings.
NOTES:
1. If a metal hose attachment fitting is used, it must be grounded.
2. Fill cap retaining chains need not be grounded.
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yolo
Ensign
Posts: 626
Location: Back to Manasquan Inlet, NJ
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Post by yolo on Jul 28, 2014 12:56:36 GMT -6
Thank you!
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