Copper Cable Source?

Discussion in 'Motorhome Chat' started by Ber090, Dec 20, 2015.

  1. Ber090

    Ber090 Funster Life Member

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    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
     
  2. andyman

    andyman Read Only Funster

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

    fastpat Read Only Funster

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

    scotjimland Funster Life Member

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  5. hilldweller

    hilldweller Funster Life Member

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

    Autowbars Funster

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

    GJH Funster Life Member

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

    SomeoneElse Funster

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    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.
     
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  9. Robert Clark

    Robert Clark Funster Life Member

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    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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  10. dave newell lvs

    dave newell lvs Trader-Vehicle Services

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

    D.
     
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  11. Ber090

    Ber090 Funster Life Member

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    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
     
    Last edited: Dec 20, 2015
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  12. scotjimland

    scotjimland Funster Life Member

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

    edit ..pipped to the post
     
  13. dave newell lvs

    dave newell lvs Trader-Vehicle Services

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    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.
     
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  14. hilldweller

    hilldweller Funster Life Member

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    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.
     
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  15. Ber090

    Ber090 Funster Life Member

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    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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  16. Ber090

    Ber090 Funster Life Member

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    Bald as a coot the missus!
     
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  17. quickweh

    quickweh Funster

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    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.
     
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  18. TheBig1

    TheBig1 Funster Life Member

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  19. Gizmouk

    Gizmouk Funster

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    25mm2 is tiny stuff, try working with multiple pole 400mm2 cable (y)
     
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  20. Gizmouk

    Gizmouk Funster

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    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 ?
     
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