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Old 03 April 2007, 07:57   #1
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Electrical wire sizes

Is there an online resource or can someone tell me what size in mm2 a cable should be used, for a given wattage/amps at 12 volts?

sizes for:

5A/60watt

10A/120watt

15A/180watt

20A/240watt

25A/300watt

30A/360watt

I think this would be handy info for any budding boat builder.
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Old 03 April 2007, 08:45   #2
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Andy

I've used a company called Vehicle wiring products in the past for supplies when working on my motorbikes.

Although the gear is not for marine purposes their website and catalogue has some good simple to understand information regarding what you need.

Regards

Simon
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Old 03 April 2007, 09:14   #3
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I use this
Richard
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Old 03 April 2007, 12:54   #4
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Cool, just what I wanted.

Thanks guys.

Andy
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Old 03 April 2007, 15:57   #5
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Quote:
Originally Posted by Nasher View Post
Andy

I've used a company called Vehicle wiring products in the past for supplies when working on my motorbikes.

Although the gear is not for marine purposes their website and catalogue has some good simple to understand information regarding what you need.

Regards

Simon

So what is marine spec wire. Tinned?
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Old 03 April 2007, 16:21   #6
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So what is marine spec wire. Tinned?
Usually tinned copper, with a finer gauge for the individual strands. Oh yes, and it costs more, because they've stamped "Marine Grade" on the jacket.



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Old 03 April 2007, 16:24   #7
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Yes, Tinned with finer strands.

But the easiest way to tell is the outragous price.

Nasher.
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Old 03 April 2007, 16:33   #8
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Hightower - I think this is a useful overview to wiring in the marine environment:

http://www.boatus.com/boattech/casey/05.htm
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