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21st November 2008, 08:14 AM
Hi,
I am getting new spa pool ( pump and heater in one ) for outside which require 40 amps power.
I am prepare to dig the trench for electrical cable to run under, before the electrician come and connect to the meter box.
I assume the minimum thickness for 40 amp 240volts approx 20 meter length is 2.5mm square ? Or go for 4mm square ?
Read the full thread at RenovateForum.com... (http://www.renovateforum.com/showthread.php?t=74582&goto=newpost)
I am getting new spa pool ( pump and heater in one ) for outside which require 40 amps power.
I am prepare to dig the trench for electrical cable to run under, before the electrician come and connect to the meter box.
I assume the minimum thickness for 40 amp 240volts approx 20 meter length is 2.5mm square ? Or go for 4mm square ?
Read the full thread at RenovateForum.com... (http://www.renovateforum.com/showthread.php?t=74582&goto=newpost)