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What is the difference between a Galvanic Isolator and an Isolation Transformer?

If you have shore power on your boat and use it at the marina to charge your batteries, then this article is for you. To protect against the damaging effects of galvanic corrosion between your boat, your neighbour’s boat and the marina, you require some method of “isolating” your boat. Of your two choices, Galvanic Isolators are inexpensive and simple to install but could fail thus requiring regular checking. Isolation Transformers are far more expensive and very heavy but almost never fail. Let’s take a look at both.

The Importance of Testing your Bonding System to Prevent Galvanic Corrosion

Galvanic corrosion is destructive and can amount to costly repairs. One of the easiest and most cost-effective ways to prevent corrosion is to install a DC bonding system. This bonding provides an electrical path between all the metals on your boat, which come in contact with water, to a sacrificial anode. The reason we bond a sacrificial anode, (usually zinc) to our vessels on the hull under the waterline is to provide an electrical path between metals that are connected electrically through electrolyte fluid to a higher freely eroding material. This allows the zinc to be consumed first over all the other materials on your vessel.

An Eco-Friendly Way to Prevent Corrosion on Your Boat

The traditional zinc anodes usually used by boaters corrode over time and release very small amounts of cadmium into the water. Cadmium is carcinogenic and if you imagine all the boats and all the marinas in the world, that adds up to a lot of carcinogens in the water. Canada Metal created an environmentally friendly aluminum anode which corrodes without releasing toxins.

Protecting Your Boat From Galvanic Corrosion

Protecting your boat from various external elements is crucial in the long run. Our boats are made of many processed materials that want to return to their normal state by undergoing electrochemical processes - in other words, these materials want to corrode. Galvanic corrosion occurs when two dissimilar metals, for example copper and steel, are connected and submersed in an electrolyte (water) - this creates an electric charge.

The SmartPlug Lives up to its Name

After 70 years of outdated technology, SmartPlug Systems has designed a revolutionary invention in the marine world. This shore power connector far surpasses the previous ones from 1938, in both safety and design. The SmartPlug is a solution to the number one cause of shore power failures and fires: overheating due to a poor electrical connection.

Using an Automotive Circuit Tester? Remember This

An automotive circuit tester looks like a pointed screwdriver with a wire and battery clamp on the end. The idea is that you clamp the wire to the battery ground and use the sharp point of the screwdriver to pierce a wire to see if it has 12 volts, which causes the handle to light up.

Staying Grounded: Fail Safe Galvanic Isolators

There are many causes of marine galvanic corrosion. So many, that one could write a book on the subject but today we will talk about stray current corrosion.

Buying a boat: what to look for in an electrical system

Do not be fooled by a clean-looking boat, because what's inside might not be quite as nice. There are a few key things you should always watch out for when purchasing a new boat. While you are near the battery, take a look to see if there any acid spills on or under the battery. Finally, go around the boat and open every little hatch to account for hidden issues.

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