[TheForge] cutting 1/4 copper

[Steve Smith]

On top of that you need a higher open circuit voltage to strike the arc. 
300V comes to mind, but I don't know where from.

Steve

Grover Richardson wrote:
> Hmmm.  140 VDC, 40 Amps.  That's enough to fry a monkey.  I didn't know it
> was anywhere near that high.
> 
> -----Original Message-----
> From: theforge-bounces at mailman.qth.net
> [mailto:theforge-bounces at mailman.qth.net] On Behalf Of Kevin D
> Sent: Wednesday, April 13, 2005 12:11 PM
> To: Sponsored by ABANA
> Subject: RE: [TheForge] cutting 1/4 copper
> 
> 
> Grover,
> 
> Just looked this up on; http://store.cyberweld.com/milspec625.html  for a
> MILLER SPECTRUM 625 PLASMA CUTTER
> 
> 
> Quick Specs: Spectrum 625
> Rated Cutting Capacity Rated: 1/2 in (13 mm)
> Quality: 5/8 in (16 mm)
> Sever: 7/8 in (22 mm)
> Rated Output 40 A at 140 VDC, 50% duty cycle at 40? C / 104? F Plasma Gas
> Flow/Pressure 6 CFM at 75 PSI or 170L/min at 517 kPa Weight Net: 57 lb (26
> kg)
> Ship: 60 lb (27 kg)
> 
> Kevin
>  
> 
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