Power | PassageMaker

Power

DC Power, or Direct Current Power, is used to power many of the many pieces of gear aboard, including marine electronics, interior and exterior lighting, winches, windlasses, pumps, washers & dryers, and many more. DC power is typically available in 12-volts or 24-volts, or, on larger vessels, 32-volts. It can be stored in batteries, and converted to AC power when desired using an inverter.

Mad Cow Disease And Shore Power Cords

This infrared image shows elevated heat on one of two shore power connections. While still within safe parameters, the infrared camera shows how the heat concentrates at the points of resistance.

Could your shore power be a disaster-in-waiting? Boat buyers often take strong positions on galley stoves, insisting that they would never expose themselves to the risks of an explosion posed by propane. A propane explosion seems much riskier than plugging in a shore power cord….

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The Large Battery Bank Equation Part I

Large Battery Bank

Once an exception, large house battery banks have become virtually de rigueur. In the not too distant past, two of the industry’s ubiquitous 8D batteries were considered more than adequate, affording the user ample “quiet ship” time, often with power to spare. In the past…

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Letters To The Editor

CONVERTING FROM 32 VOLTS I really enjoy Steve D’Antonio’s articles and his passion for boating, and I have a question I’m hoping he can answer. I own a 1979 Hatteras that is equipped with a 32VDC system, like most of the American-built boats back then….

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Letters To The Editor

­NAME THAT BOAT: ROUND 2 In “Letters to the Editor” in our April issue, we asked for help identifying a good-looking steel trawler that a reader spotted while cruising in Poulsbo, Washington. Several readers responded, saying they thought the “mystery boat” was the 55 Cape…

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Shorepower Cables

Even if your boat’s bonding system and anodes (sometimes referred to as “zincs”) are in top working condition, it’s possible that a vessel may still suffer from either rapid anode consumption or, worse, corrosion of underwater metals. The potential culprit in this doing-everything-right-but-still-experiencing-corrosion scenario is…

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Web Extra: Crimes against Metal

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Because of the potential for disaster it possesses, wiring should be routed above “normal” bilge water levels and in cases where this cannot be avoided—bilge pumps and switches for instance—careful attention must be paid to wire routing and connection methods. My own rule of thumb…

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The Ins and Outs of Shorepower Transformers

When I include a segment in my Trawler Fest lectures about shorepower transformers I often ask attendees these three questions: “How many folks have a shorepower transformer?” “How many folks don’t know if they have a shorepower transformer?”  “How many folks understand the function of…

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