Isolating our Keel with a Galvanic Isolator #galvaniccell #ourladydefiant #sailboat #boatelectrical
We just replaced our saildrive at the beginning of summer, and found recently that it was bonded to the keel and the AC grounding wires, which possibly also makes it part of the broader AC grounding system. We decided to isolate the saildrive from the bonding/ground system, and leave just the keel as the grounding point, and in addition to that, we added a galvanic isolator in line near the keel bolt that everything is grounded to.
This will mean that there is no longer a bond between the lead keel and the aluminum saildrive, or our saildrive and those boats around us (including the fully carbon one next slip over). It will be isolated with its own anode. The only other metal in the water is the keel and that is also now effectively isolated with the galvanic isolator. Our hope is that this will still be a safe method of grounding, maintain the bonding among most of the elements of the boat (rigging/push pit/bow pulpit/keel/etc.), while keeping the only two metals under water electrically independent.
Our Lady Defiant
We live on our J-133, named Defiant, and sail along the California coast when we're bored of sailing in our home port of San Francisco Bay. We love to race, as well as cruise, so we bought a boat that does both, and we use it for both regularly! We also have a cat, named Whiskey, who we bring along with us for all the adventures.
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Our Lady Defiant Lastest Videos
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