Hi Jim
On (08 Jan 98) Jim Dunmyer wrote to Alec Cameron...
 JD>  I'm not necessarily 'annoyed', but we WERE talking about DC, and
 JD> 'impedance' and other AC considerations don't apply.
The sad truth is that in practical power circuits [notably high powered ones]
there is concurrent passage of both DC and AC. The DC component may be of
similar magnitude to the AC component.
Even in a solar panel/ battery/ inverter rig there is a wee bit of AC in the
solar panel and if we need to be picky in circuit analysis accuracy some
allowance for the AC present might be justified.
OK you are being pragmatic but I am being picky.
Example in an apartment installation could be the unwanted induction of AC
energy into the panel elements by virtue of the proximity of external 60Hz
cabling or grounding leads.
I say "could be" but I admit hardly likely to pose a problem.
 JD> I surely hope that you don't 'become quiet and progress to a rocking
 JD> chair'; we'd loose the benefits of your particpation here. :-)
You've made An Old Man Very Happy!   Cheers.....ALEC
... ...Starting from a conclusion is bad research [John Harrison, Dunblane 
SCT]
--- PPoint 1.92
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