length of dc cable run


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Warpspeed
Guru

Joined: 09/08/2007
Location: Australia
Posts: 3260
Posted: 03:21am 14 Sep 2019      

10mm sq is usually rated at 50 amps for normal domestic wiring.

20 Mtrs (there and back) of 10mm sq will have a total resistance of .0344 ohms.
At 50 amps that will drop 1.72 volts.
Cheers, Tony.