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Category Archives: Boat Electronic & Electrical Systems

Electromagnetic Interference On Your Boat

Electromagnetic Interference On Your Boat

Electromagnetic Interference (a.k.a Crosstalk ) As mentioned earlier this month I’m sharing some of the points brought out when I attended the new ABYC/NMEA joint training program offered in Ft. Lauderdale, FL. One of the topics that came up during the NMEA portion of the program discussed electromagnetic interference. This is a topic that I know I’ve discussed here before. But, Continue Reading »

Electrical Impedance & Wire Tie Wraps On Your Boat

Electrical Impedance & Wire Tie Wraps On Your Boat

Electrical Impedance – Pay Attention To The Tie Wraps On Your Boat’s Electrical Wiring Recently I had the experience of being one of the instructors in a new ABYC/NMEA combined certification program. This four-day certification program is designed for experienced marine electricians and installers gain the following certifications: The ABYC Electrical Certification Program  NMEA MEI (Marine Electronics Installer Certification Program) and Continue Reading »

Are Your Boat’s Electrical Terminations Compliant with World Wide Standards?

Are Your Boat’s Electrical Terminations Compliant with World Wide Standards?

Recently I’ve been wondering about one of the more common wiring schemes that I see on both power and sailboats, primarily made outside of the US but certainly quite popular here in the US. The DIN rail mounted terminal strips you see here in my lead photo illustrate what has me wondering what’s up. These terminal configurations come in a Continue Reading »

More OnElectric Shock Drowning (ESD)

I received a query recently from a person who read a recent article in Boating Magazine entitled “Stop the Shock”. At the suggestion of Boating’s  editor Kevin Falvey I thought I might take a few moments to answer the readers fundamental question, why don’t we need to worry about in water shock hazard when unplugged from the dock and anchored Continue Reading »

Electrical Survey, what do I look for?

Electrical Survey, what do I look for?

  Last week I received a query from a reader asking me what I look for during a comprehensive inspection of a boat’s electrical system. I’ve gotten similar questions from attendees at Cruising World’s annual Boat of the Year (BOTY) competition. So, I thought I’d spend a few minutes creating such a list today. Why? Well I don’t want your Continue Reading »

Shock Hazard Protection Makes a Giant Step Forward

Shock Hazard Protection Makes a Giant Step Forward

On board electric shock hazard protection takes a giant step forward. GFCI receptacles have an extremely high failure rate, especially in marine environments. One of the reasons for this is that few of us actually subscribe to the “test monthly” dictate found on the units. Doing this helps to exercise the mechanical mechanism inside the unit to ensure that it Continue Reading »

What does ABYC say about covering live electrical terminals?

What does ABYC say about covering live electrical terminals?

Recently a reader sent in the photo above that was taken on board their boat. The question is that the electrical terminals connected to the blue colored battery isolator and several auxiliary studs don’t have any rubber boots covering them. Basically the connections you see are all live and connected directly to the battery you can see at the bottom Continue Reading »