Wire gauge in PSU (newbie)

Speek · 9th March 2003, 09:48 AM

I'm buildingh Rod Elliot's P3a and his P4 PSU with a 300VA trafo. Rod says that "heavy gauge" wire should be used in the PSU. What gauge should that be? Currently I'm using 0.75 mm2. Is that OK? How to calculate? TIA.

trwh · 9th March 2003, 10:59 AM

Hi Speek

As long as the run from the PSU to the amp is short (~10cm), then you should be OK with 0.75mm^2 wire. I used 32/0.2 = 1mm^2 wire in mine.

On a slightly different note, does anyone know of a comaprison chart between AWG / SWG / conductor area?

See ya,
Tim.

jackinnj · 9th March 2003, 12:41 PM

here's a chart from the most recent issue of QEX:

trwh · 9th March 2003, 01:48 PM

Thanks jackinnj, just what I was looking for.

9th March 2003, 09:48 AM	#1
Speek diyAudio Member Join Date: Aug 2002 Location: The Netherlands	Wire gauge in PSU (newbie) I'm buildingh Rod Elliot's P3a and his P4 PSU with a 300VA trafo. Rod says that "heavy gauge" wire should be used in the PSU. What gauge should that be? Currently I'm using 0.75 mm2. Is that OK? How to calculate? TIA.

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9th March 2003, 10:59 AM	#2
trwh diyAudio Member Join Date: Apr 2002 Location: UK	Hi Speek As long as the run from the PSU to the amp is short (~10cm), then you should be OK with 0.75mm^2 wire. I used 32/0.2 = 1mm^2 wire in mine. On a slightly different note, does anyone know of a comaprison chart between AWG / SWG / conductor area? See ya, Tim.

9th March 2003, 01:48 PM	#4
trwh diyAudio Member Join Date: Apr 2002 Location: UK	Thanks jackinnj, just what I was looking for.

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