Copper Cable Source? (1 Viewer)

[Ber090]

Having worked out that I need 2 x 4mt of 10mm and 2 x 4mt of 25mm can anyone point me towards a sensible price and source please.
Thx
Bernie

 

[andyman]

I will look what we have in the shop tomorrow and let you know. Sure we use 10mm but dont know about the 25mm.

 

[Paddywack]

Having worked out that I need 2 x 4mt of 10mm and 2 x 4mt of 25mm can anyone point me towards a sensible price and source please.
Thx
Bernie

25mm copper wire? What are you building a new power station?

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[scotjimland]

I've used this company for cables, terminals etc
Broken Link Removed

 

[hilldweller]

25mm copper wire? What are you building a new power station?

Sounds like a 10kW inverter so his wife can boil a kettle while drying her hair.

 

[Autowbars]

r you sure about 25mm, that is TOO BIG for domestic use and is VER HEAVY, capable of 1000s of volts, amps

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[GJH]

Dunno about 25mm but Clas Ohlson do a range of cables at good prices so you could look there.

 

[SomeoneElse]

I too have used Vehicle Wiring Products and can recommend them.
But for smaller quantities try Amazon, search "25mm battery cable" there will be several options.

 

[Robert Clark]

Loads of it for sale on EBay
Short and long lengths
Have used eBay a few times for cable and battery connectors
All good so far

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[dave newell]

I would assume the 25mm cable referred to is 25mm sq cross sectional area not 25mm diameter.

D.

 

[Ber090]

Thanks to you all for your replies. The cables for interest and comments are:
1. 3 x 100watt solar panels via 30amp mptt reg ( when it arrives from China) 10mm cables to batteries is what comes up for 4m run with 3% loss.

2.Inverter 1000w pure sine wave 4m run to batteries needs 25mm so the cable size charts say!
All square section. Thx Dave!

Happy for any other suggestions.
Cheers
Bernie

 

[scotjimland]

r you sure about 25mm, that is TOO BIG for domestic use and is VER HEAVY, capable of 1000s of volts, amps

actually .. at 12v ... 4mt run the capacity is about 50amps

edit ..pipped to the post

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[dave newell]

BER090, I'd suggest you put your inverter as close to the batteries as possible and run a 230V lead from it to where you want the power.

D.

 

[hilldweller]

2.Inverter 1000w pure sine wave 4m run to batteries needs 25mm so the cable size charts say!

Bernie

The beauty of an inverter is 240V out, so little cable loss. So, if possible, put inverter next to batteries and run small 240v cable the long distances.

 

[Ber090]

BER090, I'd suggest you put your inverter as close to the batteries as possible and run a 230V lead from it to where you want the power.

D.

Thx Dave but my Aviano 728 is a nightmare to find space for the inverter. Only option at present is inverter in garage
Cheers
Bernie

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[Ber090]

Sounds like a 10kW inverter so his wife can boil a kettle while drying her hair.

Bald as a coot the missus!

 

[quickweh]

12 volt planet is a good source for cable, terminals, fuses and fuse holders.
http://www.12voltplanet.co.uk/
There is also a very good help page on cable sizing. You can also Google a page to convert square milimetres to milimetres diameter if needed.

 

[TheBig1]

as and when i need 35mm2 and 25mm2 cable, i often use welding cable. about £6 a metre on ebay

http://www.ebay.co.uk/sch/i.html?_f....Xwelding+ca.TRS0&_nkw=welding+cable&_sacat=0

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[Gizmouk]

25mm copper wire? What are you building a new power station?

25mm2 is tiny stuff, try working with multiple pole 400mm2 cable

 

[Gizmouk]

Thanks to you all for your replies. The cables for interest and comments are:
1. 3 x 100watt solar panels via 30amp mptt reg ( when it arrives from China) 10mm cables to batteries is what comes up for 4m run with 3% loss.

2.Inverter 1000w pure sine wave 4m run to batteries needs 25mm so the cable size charts say!
All square section. Thx Dave!

A 1Kw inverter will take 85A at 12V. Assuming you want to stick at 3% volt loss, my cable calc give a CSA of 50mm2
Unless you have access to a hydraulic crimper, you'll have difficulty maintaining 3% loss.
I'd recommend shortening the cable runs - inverter as close to the batteries as possible.

What rating are your leisure batteries ?

 

[tonyidle]

25mm2 is tiny stuff, try working with multiple pole 400mm2 cable

Cover your 400 & raise you to 7,200mm2 aluminium. I saw a 15" Stilson dropped across a pair of those carrying 50v. The Stilson and both busbars melted. It covered the place in molten aluminium. It was very exciting (from a distance).

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[Gizmouk]

We only go as far as 400mm, as anything more is too difficult to work with - bend radius alone is a non starter
Have seen all sorts dropped across DC (54V) busbars) - non last long

 

[Ber090]

Hi Gizmouk, Batteries at present are 2 x 110amp. 3% is not critical and would prefer to use 25 not 50 for obvious reasons. I doubt we will ever get near full load. Getting shorter run would be great but struggling to find a way.
Cheers
Bernie

 

[dave newell]

Bernie, what exactly do you intend to run off this inverter? I ask because you say you dout you'll get close to its max load. Worth considering that most inverters are only close to their quoted efficiency at round 75% of max loading. As the load moves away from that 75% area the efficiency often drops off at an alarming rate. If you don't actually need to run a 750 Watt load from it then rethink the size of inverter you need. Look at your 230V requirements and get an inverter that will give you that wattage at max efficiency.

D.

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[Ber090]

Hi Dave, I take your points. Most of the time we will run kitchen gear at 150 watts etc. The Boss wants to get a 750w microwave for occasional use.( I make no comment!) Bottom line is that we have the inverter already and as we intend to keep this van for a long time it probably makes sense to us to over cook if you get my meaning.
Cheers
Bernie

 

[hchris]

If it's 750 output microwave it may need 1250w plus to power it

 

[TheBig1]

as a general rule of thumb the startup current for a microwave is double the rated output

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[PeteH]

as and when i need 35mm2 and 25mm2 cable, i often use welding cable. about £6 a metre on ebay

http://www.ebay.co.uk/sch/i.html?_f....Xwelding+ca.TRS0&_nkw=welding+cable&_sacat=0

Beat me to It!!. I used Welding Cable for the (Inverter / Charger) Connections in the R-V. (Also to connect Rear (Pusher Engine) Battery to Front mounted 440AH Pack)

Pete

 

[Ivory55]

Do not know how big your inverter is , but the trains are not running over Xmas and they use big cables. Haha

 

[sparky]

Hi I have the aviano 726 the 2 batteries live in an outside locker the 1000 watt inverter is fixed to a thin piece of plastic and wedged on top of the 2 batteries which keeps cables very short (12 volt ) and a mains socket run into van along with the remote switch to turn it on and off

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