BoatHowTo · video

Cosa tratta questo video

A small electrical tingle felt when touching a boat's propeller signals a potentially lethal AC fault current finding its way from the boat's electrical system to the prop.▶ 0:47 Nigel Calder explains that anyone touching the prop — a diver, a swimmer nearby, or a person on the hard — can become the fault path to ground, risking ventricular fibrillation and electrocution that can look like drowning.▶ 2:46 Two compounding failures are likely: an internal AC wiring fault on the boat, and a missing or failed ELCI or RCD on the shore power connection.▶ 1:43 A functioning ELCI or RCD should trip at fault-current levels strong enough to produce a tingle; its absence means the protection layer is gone.▶ 1:54 Reverse polarity at the shore power plug is also raised as a possible contributor.▶ 2:04 Calder notes that European dockside outlets routinely carry RCDs, making this scenario more likely on a US boat, particularly in fresh water where the risk to swimmers is highest.▶ 2:42 Both the internal fault and the shore power protection must be fixed; Calder recommends a professional marine electrician rather than a DIY trace.▶ 3:11

Altro da BoatHowTo

ONE SWITCH for TWO PUMPS?? (Pontoon Boat Setup) | Ask The Expert with NIGEL CALDERlug 2026OIL LEAKS at the Crankshaft... | Ask The Expert with NIGEL CALDERlug 20261-2-both switch - Cost effective charging system on small boats? 🤔 Ask The Expert with NIGEL CALDERgiu 202648V or 24V - What makes more sense on a Boat? | Ask The Expert with NIGEL CALDERgiu 2026

Da BoatHowTo — guarda la barca, l'equipaggio e ogni video analizzato del canale.