Discuss Cable length calculation in the Australia area at ElectriciansForums.net

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Hi people,
I'm carrying out an online course to gain my qld electrical licence.
Been a good while since calculating cable length using equations and regs books.
Can anyone guide me to the correct equations please
Thanks in advance
 
what exactly do you want to calculate? if it's max. length of a circuit, use the mOhms/m to determine the resistance (R1+R2) for the length you envisage, or conversely, to determine the max. cable length to give an acceptable Zs. then the mV/A/m to ensure that volt drop is within limits.
 

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