[TCML] Consensus on HV cable
sparktron01 at gmail.com
Tue Sep 14 06:46:28 MDT 2010
What is output voltage of pole pig?
What is size of tank capacitor?
Ichg ~ w * C * E (w= 2*pi*f; 377); C farads, E volts, Ichg amps
Ichg is approximate steady state VAR current
Would size wire to support minimum 2X that value
(see NEC table 310-16 for typical conductor
Typical #16 is good for 7.5A continuous which at
12kV is nearly 90kVA delivery to load; insulation
to support applied voltage.
On Mon, Sep 13, 2010 at 11:49 PM, David Speck <Dave at davidspeckmd.org> wrote:
> Esteemed list:
> Is there any consensus on the optimum gauge and insulation of the cable that
> goes from the HV output terminals of a 10 KVA pole pig to the RSG and tank
> cap of a 12" x 48" Coil?
> I seem to recall that the inner conductor of RG-8 coax with solid
> polyethylene jacket and without the shield was the preferred material.
> Anyone found anything better?
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Dave Sharpe, TCBOR/HEAS
Chesterfield, VA USA
Sharpe's Axiom of Murphy's Law
"Physics trumps opinion!"
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