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Choosing the Right Cable for 10kW Ground Installations: Copper vs Aluminum, 5x6mm² or Larger?

kecik18 18474 2
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 19313360
    kecik18
    Level 9  
    The topic has probably been discussed many times. But I couldn't find a complete answer anywhere. Ground installation 10kW. 2 thongs. 24x 425 W panels. Inverter mounted under the panels. Unfortunately, the installation is far from the 3-phase socket. You need 120 m of AC cable to connect the inverter to the grid. What earth cable to install. Will 5x6mm² be enough, or do I need to throw something bigger into the change. Due to the distance and price of copper cables, I'm thinking about aluminum cable. If so, what section?
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  • #2 19313369
    3301
    Level 34  
    kecik18 wrote:
    The topic has probably been discussed many times. But I couldn't find a complete answer anywhere. Ground installation 10kW. 2 thongs. 24x 425 W panels. Inverter mounted under the panels. Unfortunately, the installation is far from the 3-phase socket. You need 120 m of AC cable to connect the inverter to the grid. What earth cable to install. Will 5x6mm² be enough, or do I need to throw something bigger into the change. Due to the distance and price of copper cables, I'm thinking about aluminum cable. If so, what section?


    6 mm² is not enough, with 6 a decrease of 2.3%, with 10 1.3% and only 16 will meet below 1 because it comes out to 0.9.
    Or maybe an aluminum swap.
  • #3 19314088
    SilverX
    Level 11  
    YAKI:
    25 mm² - 0.8 %
    35 mm² - 0.6 %
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