Author Topic: wire size  (Read 515 times)

Online bsa-bill

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wire size
« on: 06.03. 2015 14:59 »
Getting stuff together for  RGF rewire  (12 volt), aim to use 4.8mm spades for neatness rather than 6.3 ones which with a cover on are quite bulky, might also consider multi pin connectors.
First though I need wire, plenty available in many colours but which size 1 or 1.5 mm (thin wall probably), biggest draw will be the headlight, will also have indicators and Pazon ignition (although indicators will be LEDs)
So 1 or 1,5 - thin wall or not - fuse size 10 amp? your input much appreciated
All the best - Bill
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1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline Johnny J

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Re: wire size
« Reply #1 on: 06.03. 2015 16:47 »
I would use 1.5mm2, that size is normally rated for 10A. 10A x 6V =60W without energy loss (heat).
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Online bsa-bill

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Re: wire size
« Reply #2 on: 06.03. 2015 16:54 »
cheers Jonny - I'm 12 volt so 1.5 would go to 120w, might that be a bit overkill or just a safer option
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online Triton Thrasher

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Re: wire size
« Reply #3 on: 06.03. 2015 16:55 »
Fuse should  be about 20A continuous.

Online bsa-bill

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Re: wire size
« Reply #4 on: 06.03. 2015 17:14 »
20 amps, thanks TT, think I may have underestimated , was sure I'd heard 10 someplace - this is why I asked
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online Triton Thrasher

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Re: wire size
« Reply #5 on: 06.03. 2015 17:51 »
Not everybody agrees with me, but I want a fuse that will blow when there's a short circuit and will not blow under any other circumstances.

Offline unclerob

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Re: wire size
« Reply #6 on: 06.03. 2015 18:38 »
Try here for terminals, connectors, etc.....
 http://www.durite.co.uk/Catalogue.aspx
Most motor factors keep their stuff in stock or can get it next day.
I'd agree with a 20A fuse if you're just using the one but personally I'd divide it into say, 3 circuits, and fuse each separately.

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Re: wire size
« Reply #7 on: 06.03. 2015 19:47 »
Food for thought unclerob there are three feeds to the one fuse fitted at the moment.

Now I've had some answers I have had time for the little grey sells to warm up and it occurs to me I should perhaps use both sizes of wire 1.5mm for battery to ammeter and ammeter to headlight, and 1mm  should do the rest 20 amp fuse to the battery and perhaps ten to the ignition and others.
Dynamo - field , probably 1mm Dynamo naybe 1.5

Ah so much fun worling out stuff I used to know without thinking *eek*
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline morris

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Re: wire size
« Reply #8 on: 06.03. 2015 21:26 »

The wire loom for the plunger I got from Draganfly is all 1,5 sq mm.
Theoretically you can go thinner on a 12V system, but I think 1 mm is a bit to thin Bill. May be prone to shear easily at the connectors.
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Re: wire size
« Reply #9 on: 06.03. 2015 22:24 »
Cheers Morris - point taken, end of the day little in the price considering the small amount need.
Thanks all for your input, measure up and order stuff tomorrow
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco