On Fri, 17 Jul 2009 22:50:07 -0700, jk wrote:

PeterD wrote:

It was determined that it
would be necessary to standardize all voltages (just not the low
voltages we are discussing here) to allow interconnection, and direct
substitution of equipment.


Not much standardization at voltage over 600V, at all.

13.8, 12.47, 12.00 KV are all fairly common MV distribution voltages
around here.
jk

It seems that way to you. More study can reveal how those
distribution voltages are related. You may bother or not.