Ali553

I can mount it just below a false panel where I recently mounted a solar panel controller

Jonathan, I agree as this solution will be pre wired internally and all I need to do is connect into this unit

Toby. Thanks for that. to be honest that did cross my mind when I was looking at them. I cannot see how the wiring on one of those standard units would differ to a Something like a small consumer unit you for into your shed.

😂😂 I agree 👍

Alan, The hull is steel and she was thinking Of using it on the Thames up past Windsor. The boat needs additional work done to it so I have recommended to her to get it booked in for a full MOT.

Thanks for that. Not owning a boat but am familiar with electrics, I was not aware up until this forum there are ISO standards. I have a brief look at them last night on my phone but really need to review them on my laptop with a bigger screen.

Alan, I agree as the more I read the more I think it’s best I do not take on the task of re wiring the boat.

Nick, The main reason to wanting the lights, sockets and water heater on separate circuits was in case a fault was to happen on any of these circuits. I understand that and know that the maximum amps I can pull is 16. My theory was that if my sister plugged in her 2kw owen and a kettle at the same time which was to turn exceed 16 amps, I wanted that 16 amp circuit to trip and not the shore power rcbo. Recently she plugged in her oven then switched on the water heater and blew the 10 amp glass fuse that is in the power inlet connector at the side of the boat

Tony, thanks for the advice. The last thing i want ia main voltage on the 12 volt supply.

Tony, I recently picked up a Sterling Pro Save A Galavanic Isolator. The wiring diagram for this unit shows the earth from the consumer unit on the boat connected to the earths bonding system of which it shows the negative on the battery terminal

Tony, Regarding your single mcbo, are you using a double pole switch ?

Nick, Thanks for the reply. you say you have only one 16 A rcbo but I was going to put in either three, mcb or rcbo, one for sockets, one for the water heater and one for lights. Correct me if I am wrong but I thought you needed an rcd to backup the mcb?

I agree as when I tested the sockets on the boat was getting reverse polarity as the plug was reversed

Hi. Many thanks for your reply. yes I felt it was not a good idea to attach the onshore earth to the negative on the battery. Your correct with your description of the wiring layout on the boat. Whoever previously did it created a diy disaster and I feel it’s is not compliant. Its a cruiser which will require work make it compliant hence why the Buddhist job will be the electrics David, it’s a European plug and which has two brass prongs/pins sticking out. Yes this is a very dangerous setup where someone could get electrified if they plugged it out and touched the pins

Hi, Recently my sister bought a boat and she asked if I could look over the onboard electrics which have two double sockets and a water heate. These are fed from the onshore power. I have determined that the power inlet at the side of the boat is European. For safety the live and neutral on the inlet connector are backed up by two glass 10 amp fuses. The 2.5 cable coming from this inlet has a European plug attached to the end of the cable. It has the two prongs, which are live and neutral with the earth built into the plug. This plug then plugs into a European triple socket. This triple socket has a European to UK adapter plugged into it. Plugged into this adapter is a three pin plug powering the water heater. Coming out of the triple socket is another European plug which feeds two double uk sockets. As you can clearly see this is a very dangerous setup not to mention a health and safety hazard and a fire risk. This wiring configuration could also cause reverse polarity on the live and neutral if you plug in the European plug incorrectly I cannot see any bonding from this arrangement to either the engine block or the negative terminal on the battery. The boat is being currently fed from shore power by a 20 amb rcbo. I have some knowledge of electrics so sister asked could I rewire the boat and install a galvanic isolator. I was planning on putting in a consumer unit with 20 amp and 16 amp mcbs. Alternatively someone has suggested installing individual RCBOs. The biggest issue I have is determining what I need to use for my mains breaker if I was to use either Mcb or rcbos. My other query is peoples thoughts on attaching the onshore earth to the negative on the battery. I just wanted to reach out and get other peoples opinion. I wanted to see if the was something other boaters may have tackled themselves or left to the professionals. Thanks