Hi all,
This may sould a stupid question or its been asked thousands of times if so sorry .
I've been out of the game for many years and in the process of trying to source what needed to install a hot tub in my garden and I've done calcs and done them online and I keep getting different figures so can someone clarify the following for us:
The tub plate states 27 amps.
SWA run is 36 meters.
So I'm presuming 6mm SWA is sufficient based on a 5% voltage drop?
Phase : Single Phase
Power : 7.36 kilowatts / 32 amps
Length : 35m clipped
Core Size : 6 mm²
Voltage Drop : 9.1 volts
So should it be 10mm SWA or is 6mm ok or is it at its limits?
Thanks,
Brian
This may sould a stupid question or its been asked thousands of times if so sorry .
I've been out of the game for many years and in the process of trying to source what needed to install a hot tub in my garden and I've done calcs and done them online and I keep getting different figures so can someone clarify the following for us:
The tub plate states 27 amps.
SWA run is 36 meters.
So I'm presuming 6mm SWA is sufficient based on a 5% voltage drop?
Phase : Single Phase
Power : 7.36 kilowatts / 32 amps
Length : 35m clipped
Core Size : 6 mm²
Voltage Drop : 9.1 volts
So should it be 10mm SWA or is 6mm ok or is it at its limits?
Thanks,
Brian