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hi youtubers jeff cote here with ask pys so we've got a question from lars lars has a sailboat 50-foot bavaria and he's got two shore power plugs and he asked a question about galvanic geisler he says do i need two galvanic ice layers the short answer is yes and it's the same thing you see this on big boat big big big boats 60 70 footers they'll actually have not only two isolate like two galvanic isolators but they'll have an isolation transformer in the front and an isolation transformer in the back so for boaters out there that do have two shore power plugs maybe one up front one in the back or two in the back you're gonna need a galvanic isolator rated for the maximum amperage of that shore power connection so if it's a 30 amp you're going to want to make sure that obviously your galvanic isolator can handle 30 amps and you're going to want to have one on both circuits so you're going to have a galvanic isolator per shore power cord the reason that is essential is that you never want any straight current dc straight current to bypass your galvanic isolator and you need to protect that or each ac grounding connection by installing a galvanic isolator remember gasoline isolators are not all that expensive and modern day ones are fail-safe so you can probably pick up a galvanic isolator for 250 300 hours usd which is pretty affordable considering what damage can happen to your underwater metals if you don't have one on the topic of galvanic isolators i strongly strongly encourage all boaters who do not have an isolation transformer and if you do plug into a marina strongly suggest that you install a galvanic isolator on your shore power receptacle