#96t

[@JustinBellingerTV]

The single most useful video I've ever watched with respect to boating, and I'm a qualified electronic engineer! Thanks for this, learned a lot.

[@SailingSisu]

😅 OH wow! Yeah, wait until I make the rusting video! 😂

[@deibertmichael]

All Boaters should know this! Well done!

[@SailingSisu]

A bit technical I am afraid 😅

[@negussolomon5532]

Wow you took me back to chemistry classes way back in high school. Never even thought about a current circuit system effects on a marina. I assumed the earthing was based on individual boats, thank you for confusing and enlightening me.

[@SailingSisu]

I was thinking the same! Until I saw this white thing below my DB board and was wondering WTF???

[@trevhedges]

Very educational, explaining corrosion, but also, “stray current” and the theory of electromagnetic plating, and Sacrificial anodes. I actually find it amazing you try to expain how it works.. very well done!

[@SailingSisu]

Trev, thank you! 'trying' being the operative word 😂

[@trevhedges]

Sailing Sisu, Nar you did well.. all good.. it’s one of them subjects i had to learn (very old school engineering) and if you can get your mind around they way metals work, alot of things are much easier to explain, everything from a light Bulb to batteries, bearings, corrosion, volt drop, welding (superheating stress fractures) ect ect.. the list goes on and on. I seen no faults in your explanations.. all good 👍

[@miguelcordova8549]

wow! wow! wow!... WTMI!! I have a headache now, but really informative and interesting thank you Frik! Love the videos!!!

[@SailingSisu]

Yeah, sorry, it was a bit too technical, I guess 😅

[@gems34]

Thanks Frik, the giant battery in the marina analogy clicked on the bulbs in my head :) Great explanation and informative video much appreciated.

[@SailingSisu]

Thank you, Tusk! Very difficult topic to convey in layman's terms!

[@clearthedek]

Frik, Just wanted to say that I absolutely love this video. As much as I love seeing pictures of the boat sailing and destinations you guys go to, it’s nice once in a while to have something that’s truly educational. I’ve sailed pretty much all of my life and I never once thought of a marina as a giant electrolyte until now. Really puts the anode and cathode situation into perspective. Keep up the great work.

[@SailingSisu]

Thank you, Jordie for the kind words! Yes, me neither! I discovered this white thing and was wondering what heck it was. Yeah, the battery thing only happens it you are plugged in to shore power.

[@PacificSolo]

woah . . learning a lot from this one

[@SailingSisu]

Thank you for the kind words!

[@MurphysLemonadeStand]

I felt like I was sitting in a class. Except it was for boats. Which made it a lot more fun. lol (thumbs up)

[@SailingSisu]

😅 Sorry, if you look closely you will see at some stage my eyes were flicking top right as I accessed the visual representation of the Quantum particles, but then thought... Nah, let's leave that for the rust video 😏

[@danielcallinan5629]

Great information!

[@SailingSisu]

Glad you think so!, Thanks for watching Daniel

[@user-st9xr7rh9r]

Very helpful. Thanks

[@SailingSisu]

You're welcome!

[@brianrydzeski6108]

What can I say, Frik. I am going to 'parrot' many people here by saying Bravo Zulu! [well done] or, Lekker Good. While I already knew about galvanic isolators, your explanation makes it very straight forward to understand.

[@SailingSisu]

Thank you, Brian! I need inspiring comments 😅 it was a tough one and I was putting it off for some time now, because how do you keep it simple but still provide a good explanation of what happens and why?

[@stevenr8606]

Shared your info !!!! After so many years passed by, I now know why my fellow yachty boat was eating its zincs so fast. Mahalo/Thanks!

[@SailingSisu]

Steven, I honestly wish all our fans were the ambassador you are! Thank you for the kind words!

[@stevenr8606]

? Ready for a double take ? Watch this... m.kzbin.infovideos

[@johnward9728]

Very informative video thank you Frick

[@SailingSisu]

Thank you, John! Always good to hear from you! Thank for keeping watching!

[@the_ayesha_khan]

Fantastic Captain Frik, thank you as always. Great detail.

[@SailingSisu]

Thank you, Richard! Very technical 😅

[@rhirwin10]

Simpler--- Use an isolation transformer for 100% confidence!! of isolation from all galvanic currents or impressed currents.

[@SailingSisu]

Exactly! The isolating transformer is the best, but also heavier and bulkier and more expensive. Almost the size and weight of a lead acid battery.

[@sergest-pierre6160]

Thanks for this detail information. You provided the details I was looking for.

[@SailingSisu]

Thank you, Serge! Good to hear that I am helping someone!

[@___Chris___]

Happy New Year! I just recently discovered your channel and already love it. No offense, despite the countless hours you sacrifice for making this content possible, the film-making quality is certainly still much below the other big channels (Uma, Delos, LaVagabonde, Zatara, O'Kellys, Nahoa, even the authentic "Old Seadog"...), *BUT* you more than compensate for this via the amount of densely packed useful information. *A more complicated/detailed question that might also be an idea for a separate video* (I'm not sure if you ever talked about this): would you be interested to explain the lightning protection system and electrical safety on your boat (=passenger safety, but also device safety)? This includes aspects like: are there separate ground plates for each hull? What's their surface area (aproximately)? Which parts of your electrical system and metal parts are grounded? Mast? Standing rigging? Guard rails? Antennas? Only the AC circuits or also DC devices? The latter includes: does the boat use a grounded central negative, like the typical situation in car installations, or does each DC device use positive and negative wires running all the way back to the battery? Last but not least: is there a so-called "Surge Protective Device", *SPD type 1*, installed, like we see as an essential part of the lightning protection strategy in house installations (DC versions of this principle also exist and are e.g. used to protect "off-grid" solar panel arrays against lightning strikes)? I never heard anybody talk about this in the context of boats. Is there any reason it doesn't work? I'm not talking about protection against kind of minor voltage spikes in the "grid" (like in the example of house installations or a boat under shore power), but basically an on-demand "3way switch" that is able to (1) briefly separate the positive and neg pole and hence all devices in your onboard circuitry from ground (=isolate ground) whenever a huge current (lightning strike or basically anything caused by a voltage higher than 0.5-1 kV, depending on the individual SPD model) primarily enters via ground or a grounded component that isn't current-carrying under normal conditions (e.g. lightning strike to the mast or lightning into the water or another boat very close to your boat), i.e. an event without that doesn't primarily affect "pos" or "neg" wires. (2) isolate either pos or (3) neg from the electric circuit (hence allowing to shunt the current flow only _directly_ via ground, instead of e.g. pos. wire-->device(fried!)-->neg. wire-->grounded negative battery pole) in case of a power surge/lightning strike affecting a "pos" or "neg" wire. The problem without this little trick: we have to decide wether we want to ground-connect either pos. or neg., because we can't do both simultanously without creating a short-circuit or stray currents. An SPD-type1 elegantly solves this dilemma by basically being a super-fast reacting automatic "on demand grounding" switch for either pos OR neg OR ground itself (=default). If on the other hand (like in the standard situation) only neg is grounded, a lightning strike will still be shunted to ground, but not without frying the devices in the circuitry. With an SPD-type1 this shouldn't happen. Thanks!

[@SailingSisu]

Excellent thoughts! Our tech videos, the ones with a 't' next to the number, are not going to win any quality contest 😅 but please, have a look at our non technical videos and tell us what you think? As for lighting protection... Very big topic. Fortunately, I do have a friend who is doing lighting protection for military aircraft and he gave me some great advice on how to optimize for indirect strikes. I have been in my previous life involved with telemetry systems and no protection is available for direct strikes if you are touching earth. Keep watching this space, I am going to document this process and principles

[@henrirotthier5710]

It is very easy to make a galvanic isolator yourself for a few bucks. I did it and very happy. There are schematics on the net

[@SailingSisu]

Jip, basically four diodes and a capacitor and some stuff to ensure that if a diode blows you still have earth... Or get electricuted if you accidentally got your fingers on 220V 😅

[@bolo863]

🤣 I probably had a very blank look on my face because I can honestly say that my 🧠 went on strike during your explanation. Having said that I still enjoy your videos.

[@SailingSisu]

😅 Yeah, it is on a different level 🤣 I was thinking of going down to Quantum levels with partials, but then...

[@deibertmichael]

Your video will save allot of issues. Esp. Aluminum Yachts. It can start to flake like pages of a telephone book.

[@SailingSisu]

😅 Michael, that would be a huge tragedy! If they do not know of Galvanic Currents 😏

[@deibertmichael]

@@SailingSisu I saw it in the bilge of a Aluminum Sail boat delaminated sheets lifted with white powder in between. We had a Galvanic meter I would put over the side to measure. Some marina's were incredibly high.

[@SailingSisu]

Oh wow! Yeah, I guess sailors in a marina doesn't realize that!

[@twolittleducks2198]

Brilliant Frik a great video and excellent knowledge, I hope we bump into at some point when you are in the Med so I can buy you a beer.

[@SailingSisu]

Thank you, Paul! Yeah, my mind goes into too much detail trying to figure out what exactly is happening!

[@SailingSisu]

We are now in Malta...

[@twolittleducks2198]

Sailing Sisu Hi guys if you pass Denia Spain on your way past give us a shout for that beer, you seem to be heading this way 👍👍

[@SailingSisu]

We will for sure keep it in mind! Always keen for a beer!

[@negussolomon5532]

If I remember correctly the movement of electrons from a unstable shell to a more stable shell is a covalance or valence movement to be in an equilibrium. Wow I am still bewildered, I recall something about an isotope, did it not have something to do with electrons moving to an unstable space.

[@SailingSisu]

In fact, Negus, at one point you will see my eyes flicks top right to access the visual representation of the Quantum particles spinning and how they vibrate in their wave lengths to have a fixed quantized energy... And then I thought to leave that for the rusting video 🤣😂

[@lkm5462]

Excellent , thanks

[@SailingSisu]

Thank you!

[@Nerd3927]

Excellent, all correct. But explaining this topic to a noob is so hard. On a steel boat I like an Isolation transformer better. I have the IT3600 from Victron.

[@SailingSisu]

Yes, it can get technical very quickly, and yes, the isolating transformer is way better! Just a bit more bulky

[@rodwaski]

You mentioned a magnesium anode for your saildrive. My understanding was they should only be used in fresh/brackish waters. (Recently googled to confirm)

[@SailingSisu]

Oh, I did not know that. I am not sure what ours is then, but it is super lightweight. It may very well be Zync, but it does not feel the same as the prop zinc?

[@dasimparmy2289]

I had no idea that the DC voltage could leak from the show power in any significant amount and cause so much corrosion and damage. Good on you for doing all that research or did someone tell you abbout it? Quick question, doesn't a marine isolation transformer do the same thing or does it work only for AC current?

[@SailingSisu]

Thank you, John! It is actually not technically DC voltage, but Galvanic Currents based on the atomic periodic table. But yeah, these metals create their own currents. Think of every boat with some metal in the water, as part of a big battery and all connected tmetals are the anodes in one big ass electrolyte called sea. The weaker metals will dissolve first. As for isolating transformers, they are the best since no DC currents pass, but the downside is that they are bulky and heavy.

[@SailingSisu]

Oh, John, I actually discovered this white thing below my DB board and I was wondering WTF this thing does 😅

[@dasimparmy2289]

@@SailingSisu 😆😅😂

[@negussolomon5532]

This video is very interesting. Something I never thaught about. So the galvanic isolator, works to protect the boat from shorting. Why does it need a capacitor?

[@SailingSisu]

Ah, Negus! This would have been a good AIDS topic! Actually, it prevents the propellers to 'rust'. The cap is there to keep AC earth for in case the diodes blows. AC can go through caps, DC not. So, if you do touch a life wire, then the spike will still go through the cap and trip the earth leakage breaker. This is for the case if a diode blows,because you loose ground/earth.

[@theinfoteam3276]

THATS why I love PLASTIC !! OR make a GOLD prop.....

[@SailingSisu]

😅 With a plastic shaft 😂

[@theinfoteam3276]

@@SailingSisu Carbon Fiber !

[@BennyTheNerd]

Did your Leopard come with that Galvanic Isolator or did you install that your self?

[@SailingSisu]

This one I discovered one morning looking for a blown fuse 😅 and then I was wondering what the heck it is and why it is on the boat. So, yeah, Leopards have them factory installed.

[@BennyTheNerd]

@@SailingSisu Ha ha, a nice way to find out, I guess you researched what the Isolator do then 😅

[@SailingSisu]

@@BennyTheNerd, exactly! I had no idea I had one! I heard that I need one, but did not understand why besides it is protecting my zincs in a marina 😂

[@BennyTheNerd]

@@SailingSisu Sometime you get pleasant surprises that doesn't cost anything !! :-)

[@playb4work447]

Sorry, you lost me. I did my best to understand and follow. On the up side, the special effects were kinda cool.

[@SailingSisu]

I knew it! That's the exact reason I why I put them in! 😅 Thank you for watching and suffer through a super technical explanation 🤣 luckily I left the Quantum states out, because I almost ventured into particles and their probability states and quantized energy 😳🙄😅

[@SailingSunday]

First 🤙🏼🤘🏼 lol

[@SailingSisu]

Ah man! You guys are awesome!

[@timlucas4014]

-ve to +ve for some ( me included ) or + to - for others lol

[@SailingSisu]

Yeah, what is the 'e' about? I saw it couple of times

[@lumimore]

What was these guys mistake, according to you,..? kzbin.infovideos

[@SailingSisu]

Egnen, it would be more interesting to hear what differences you picked up in what I presented in my video and what their video projects?