Trojan Boat Forum

larryeddington wrote:Just for the record, my 84 tri-cabin has two 30 amp connectors on the stern starboard side. You can use only one and combine the plugs if visiting where not dual 30 amp service. I checked and both are the same phase, in other words not two 120v phases (equals 220v) but the same phase leg, it allows double ampacity to 60 amp. However using the circuit combiner switch on boat to only one 30 ampacity.

Larry......I have the same thing I think....2 x 30 in the cockpit and the combining breaker on the panel....I don't understand ,can you explain what you mean by the phase leg being the same...Thanks Mike

mikeandanne wrote:

larryeddington wrote:Just for the record, my 84 tri-cabin has two 30 amp connectors on the stern starboard side. You can use only one and combine the plugs if visiting where not dual 30 amp service. I checked and both are the same phase, in other words not two 120v phases (equals 220v) but the same phase leg, it allows double ampacity to 60 amp. However using the circuit combiner switch on boat to only one 30 ampacity.

Larry......I have the same thing I think....2 x 30 in the cockpit and the combining breaker on the panel....I don't understand ,can you explain what you mean by the phase leg being the same...Thanks Mike

Larry's statement may be true for where he is pluged in. And maybe I am misunderstanding what he is saying . However Many/most marines will have two 30 amp plugs coming off the dock that are on different circuits and you could pull 220 of them . As you boat is wired it is on little concern . With both cords coming in its just like your house 220 spilt in to 2 110 volt . sides . This why the cross over switch MUST BE OFF when using both cords if it where on the same leg/circuit it would not matter . Many 220 volt boats use a Y you bring in 220 from 2 110 plugs when needed .

Now when you use 1 cord it all is on the same circuit

Ok, that makes sense that you are talking about the dock side....for some reason I was looking at it as the boat side....electrical for me takes a lot of thought...Thanks

Sanctuary 2 wrote:Update on power. Turned out had a polarity problem on a extension cord I repaired. Now fixed and have power. Battery charger works. Warm weather has deck drains working. Batteries have been pulled to see which ones are salvageable. Any ideas on my next move?

here is what i suggest as your next move. get to know your boat. every inch of her. every nook and cranny. open hatches. open sliding doors in the salon. get to know your systems and sub systems. hell, grab some paper and a pen and write stuff down. make a diagram of the outline and document where EVERY THROUGH HULL FITTING IS. look for overboard discharge areas for bilge pumps, sink water and cockpit water. (the step down well in the command bridge should exit on the port side above the boot stripe---test it out...) just get to know her. and remember, NEVER EVER engage your v-drives in the slip just to spin the props. the walter v-drives are water cooled. when you look under the boat, you see two scoops for each v-drive. one faces forward, the other aft. that's how they are cooled. so, enjoy the experience of getting to know her.......
aaron

Thanks for the info on v- drives. I did come across the cockpit drain on port side after some ice melt did is job and I got wet going by. Lol. I'm in the process of getting dirty and hand over handing each system. I think I have saved 3 batteries. I will use one on each engine. One on the genny. Will build my base from there.

Maybe I should not have used the word phase but referred to the connecting cables to the boat, at least mine, are coming off the same leg of power. In 220v you will have two 120V separate legs measure across them and you read 220V, measure each to ground and you get 120V. So what I have and most of us as well, is two 30 amp circuits coming off one leg which would be the same as one 60 amp circuit using a larger connecting cable.

Some boats, as does most of our houses, have 220v service and when that is the case it would have two connecting cables also, one cable from each leg.

Of course then there is three phase and a bunch of others voltages. Phases comes from the utility generator that puts out three phase lines as their genny windings make 3 separate sine waved alternating power pushing the three separate legs, their genny is grounded to the earth, But that is way more information than you need.

Larry have you checked it with a volt meter ? Most marinas will have the 2 30 amp plugs on different circuits so you could pull 220 if needed , It would not effect 110 opp on our boats . Maybe you marina is a odd one