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 Well My Norman has ...............?
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fred99

69 Posts
Posted - 18 Jan 2014 :  19:05:34  Show Profile Send fred99 a Private Message  Reply with Quote
When I re-wire my boat I plan to use 25mm cable from the battery to the isolator and 1.5mm 2 core from the main switch panel to the pump, lights, 12v sockets etc but what size cable should I use from the isolator to the switch panel? I cant seem to find any info on this.

Deano

United Kingdom
1843 Posts
Posted - 19 Jan 2014 :  00:58:34  Show Profile  Visit Deano's Homepage Send Deano a Private Message  Reply with Quote
A big enough current ratting to cary the full load of your lights, pump ect.... plus a bit for safety.

You can't over spec a cable. The bigger the better (with practical reason).

Are you fusing at the battery end, or on the switch panel??


Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/
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fred99

69 Posts
Posted - 19 Jan 2014 :  09:11:37  Show Profile Send fred99 a Private Message  Reply with Quote
Would you think this is sufficient? 65/0.30mm, 4.5mm2, 35amp. I really know nothing about electrics.

It will run probably 4 or 5 led strips, maybe a bilge pump, navigation lights and 3 or 4 12v sockets.

The switchboard has individual fuses already fitted.
Edited by - fred99 on 19 Jan 2014 09:17:47
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Deano

United Kingdom
1843 Posts
Posted - 19 Jan 2014 :  16:56:32  Show Profile  Visit Deano's Homepage Send Deano a Private Message  Reply with Quote
Sounds about right... though I don't know your boat... donut's sue me if it catches fire!!!

This is worth a read... http://www.motoren.ath.cx/Download.php?filename=/_electrical/12volthandbook.pdf


or

http://www.tb-training.co.uk/cover.html


Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/
Edited by - Deano on 19 Jan 2014 16:57:40
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fred99

69 Posts
Posted - 19 Jan 2014 :  20:15:36  Show Profile Send fred99 a Private Message  Reply with Quote
Thanks Deano, some great info there. ( If only I knew what it meant )
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fred99

69 Posts
Posted - 23 Apr 2014 :  20:39:30  Show Profile Send fred99 a Private Message  Reply with Quote
I've done this diagram of how I think the wiring should go but I'm really not sure about electrickery. Can anyone confirm if I've got it right please? The switch panel has a seperate fuse for each switch.
Edited by - fred99 on 23 Apr 2014 20:56:25
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