auxinput
... low grade copper will not be able to charge/discharge the higher frequencies and you’ll have high frequency roll off.Could you please explain these "high frequencies?" Isn’t a power cord set at 60 hZ in the US, by definition?
In addition, PVC insulation will act as a restriction (i.e. dielectric resistance) that robs current.How can insulation "rob current?" If the PC is measures low resistance - which would be factored into its amperage rating - wouldn’t that be sufficient?