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Hi all,
Long story short, I'm in the process of helping a friend get a boat ready for sale. It was her Mum's, she's no longer with us, and is in need of an electrical refit because too many people with zero clue have cobbled in new stuff.
In general, I'm happy with my plan but I'd just like a bit of feedback from people more experienced than I in this field.
The installation, aside from the ignition/charge circuit, is quite limited. It has running lights, an upfront head light, a car stereo, cabin lights, water pump and some power outlets. The power outlets are some old fashioned square plug/socket arrangement, never seen anything like it before, but I'm going to install cigarette lighter sockets (3 off) and USB outlets (2 off). Cabin lights will be LED, running lights and headlamp LED also.
It also has a 240v shore hookup.
My thinking is that everything will be a radial, except the power sockets. I'd rather not spend loads of money on varying sizes of cable, so I'm looking at 1.5mm Tinned Copper (rated at 21A) for nearly all the wiring, with the power circuit connected in a ring so effectively having a 42A capability. It will be fused down to 20A but I don't like the idea of running the cable just under it's rated maximum. The cable is this:-
Single Core Tinned Thin Wall Cable - 1.5mm² 21A - http://www.12voltplanet.co.uk/single-core-tinned-thin-wall-cable-1-5mm-21a.html
My plan is to build a custom wiring loom and wrap it in fabric tape, pull it into place and terminate.
Currently the water pump is directly switched by the sink taps, my feeling is I'm going to add a drive relay so the taps switch the relay. I have no idea of the spec of the taps or their usual rated current and I have no idea on the rating of the current water pump, I'm just being cautious.
Can anyone see any problems with what I've suggested so far?
It has a single 12v battery, for starting and powering the equipment. This is charged by the engine when it is running. I'd like to add a charge/power option so that when it is connected to the shore line, the battery is being charged or that unit can power some equipment (like cabin lights, power outlets and stereo). Does anyone have any suggestions for the charger that don't cost the earth? I'm looking at using a Rovert RE25A12PS.
I have no idea if there are any special regulations I should follow aside from things that may be appropriate in BS 7671, so any advice would be greatly appreciated.
If you need more information, don't hesitate to ask and I'll do my best to answer.
Thanks
Christina
Long story short, I'm in the process of helping a friend get a boat ready for sale. It was her Mum's, she's no longer with us, and is in need of an electrical refit because too many people with zero clue have cobbled in new stuff.
In general, I'm happy with my plan but I'd just like a bit of feedback from people more experienced than I in this field.
The installation, aside from the ignition/charge circuit, is quite limited. It has running lights, an upfront head light, a car stereo, cabin lights, water pump and some power outlets. The power outlets are some old fashioned square plug/socket arrangement, never seen anything like it before, but I'm going to install cigarette lighter sockets (3 off) and USB outlets (2 off). Cabin lights will be LED, running lights and headlamp LED also.
It also has a 240v shore hookup.
My thinking is that everything will be a radial, except the power sockets. I'd rather not spend loads of money on varying sizes of cable, so I'm looking at 1.5mm Tinned Copper (rated at 21A) for nearly all the wiring, with the power circuit connected in a ring so effectively having a 42A capability. It will be fused down to 20A but I don't like the idea of running the cable just under it's rated maximum. The cable is this:-
Single Core Tinned Thin Wall Cable - 1.5mm² 21A - http://www.12voltplanet.co.uk/single-core-tinned-thin-wall-cable-1-5mm-21a.html
My plan is to build a custom wiring loom and wrap it in fabric tape, pull it into place and terminate.
Currently the water pump is directly switched by the sink taps, my feeling is I'm going to add a drive relay so the taps switch the relay. I have no idea of the spec of the taps or their usual rated current and I have no idea on the rating of the current water pump, I'm just being cautious.
Can anyone see any problems with what I've suggested so far?
It has a single 12v battery, for starting and powering the equipment. This is charged by the engine when it is running. I'd like to add a charge/power option so that when it is connected to the shore line, the battery is being charged or that unit can power some equipment (like cabin lights, power outlets and stereo). Does anyone have any suggestions for the charger that don't cost the earth? I'm looking at using a Rovert RE25A12PS.
I have no idea if there are any special regulations I should follow aside from things that may be appropriate in BS 7671, so any advice would be greatly appreciated.
If you need more information, don't hesitate to ask and I'll do my best to answer.
Thanks
Christina