Corrosion Stopper Page 2

If the green grounding cable on your boat’s AC inlet is connected to the DC ground as the American Boat and Yacht Council recommends, you may be asking for trouble.As soon as you plug into shorepower, you’re connecting the underwater metal on your boat—stainless steel propeller shaft, bronze prop and through-hulls, zinc anodes, aluminum saildrive—to the underwater metal on all the other
Author:
Updated:
Original:
4.int

I unscrew the inlet and remove the green grounding wire, which needs to be lengthened so that it can be hooked up to the “boat ground” terminal on the isolator

5.int

For the sake of neatness I very carefully slit the cable about 6 inches from the end with a sharp knife so that I can pull out the ground wire while leaving the sheath intact (inset). If you do this, make sure you don’t cut the insulation on the hot or neutral wires; if your blade is sharp enough it is easy to make a clean cut between the wires

6.int

I use a butt connector to extend the length of the ground wire so it will reach the “boat ground” terminal on the isolator. Because my extra length of green wire is 14 gauge as opposed to the 10 gauge of the original, I need to bulk it up before applying the heatshrink tubing. I do this by first slipping on a thinner piece of heatshrink, then shrinking the large size over it

7.int

I like to use a heat-shrink ring terminal; they are more expensive than standard terminals but save a bit of time

8.int

I insert one end of a new length of green wire into the shore power inlet

9.int

The other end goes to the “shore ground” terminal on the isolator

10.int

I’ve replaced the inlet and screwed the isolator to a bulkhead, using stainless steel washers on the screws as spacers to leave an air gap behind the isolator, which could get hot if there is a ground fault

RESOURCES

Marinco

ProMariner

Newmar

Sterling Power

Yandina

DEI

C-Power

Related

Waypoint.image.cd

Say No To Waypoints

Ever since they first appeared in my navigational toolbox decades ago I have been wary of waypoints. They certainly do seem helpful, these electronic flags we plant in the ether to guide us to where we want to go. But I noticed early on they also tend to distort our perception. ...read more

Lead-shutterstock_429247

A Cruise up Florida’s St. Johns River

The chart showed 45ft of vertical clearance, and I knew the boat should be able to pass under the bridge. Still, there was that nagging voice in my head that wouldn’t let me be. “What if your air draft calculations were wrong?” it said. “And if you’re just a little too high the ...read more

pic00

Installing a Helm Pod

Our 1987 Pearson project boat came with an elderly but functioning Raymarine chartplotter, located belowdecks at the nav station. Since I usually sail solo or doublehanded, it was of little use down there—it needed to be near the helm. When I decided to update the plotter along ...read more

Panamerican

Pan American Game Success

Team USA’s young sailors went to the quadrennial Pan-American Games in Lima, Peru this summer with high hopes, and returned with a good haul of medals—two Golds, three Silvers, and two Bronze. Gold medals went to Ernesto Rodriguez and Hallie Schiffman (Mixed Snipe) and Riley ...read more

190916-AC75

U.S. Team Launches First America’s Cup Boat

Fast forward to around 2:25 to see the boat in action. First day out and already doing full-foiling gybes: not too shabby! Hard on the heels of the unveiling of New Zealand’s first AC75, the New York Yacht Club’s American Magic team has now launched its first America’s Cup ...read more

GGTobCaysHorseshoeColors

Picking a Charter Destination

Picking a destination should reflect the interests of your group, says People often ask about my favorite charter destination, and invariably, I sidestep the question with one of my own: “Well, what do you want to do on your vacation?” Most often I hear an incredulous, “Why, ...read more

sinking

Waterlines: Chasing Leaks on Boats

Chasing leaks on boats is a time-honored obsession. Rule number one in all galaxies of the nautical universe through all of nautical history has always been the same: keep the water on the outside. When water somehow finds its way inside and you don’t know where it’s coming ...read more

BestBoatNominees2020-Promo

Best Boats Nominees 2020

Bring on the monohulls! In a world increasingly given over to multihull sailing, SAIL magazine’s “Best Boats” class of 2020 brings with it a strong new group of keelboats, including everything from luxury cruisers nipping at the heels of their mega-yacht brethren to a number of ...read more