Project Brupeg · video

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The owners of the expedition boat BrewPeg address persistent electrical grounding issues and electrolysis risks by centralizing all negative connections to a common bus bar.19:07 After discovering that a faulty sensor caused 40 amps of starting current to flow through a thin wiring loom, the crew unified the negatives for the main engine, generator, and Victron system.8:00 They maintain an "above-ground" hull configuration to control electron flow and prevent stray current, while installing an external Balmar regulator on the alternator to charge the lithium battery bank.18:59 The project also includes upgrading winch pulleys to accommodate 19mm Dyneema rope and installing a 60mm vent for the battery box, sealed with FixTek 190 to prevent corrosion on the steel hull.29:55 Testing confirms that the alternator successfully charges the battery bank while the common ground prevents unintended current loops.9:57 Proper common-grounding and isolating sensors from the hull are essential for preventing electrolysis and protecting wiring looms in metal vessels.

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