On Thu, 28 Jun 2007 23:39:23 -0000, (Chris
Lewis) wrote:

According to Mark Lloyd :
I was wondering why the SPECIFIC value of 117V was mentioned in an
earlier post.

That's what I was answering.

I seem to recall somewhere seeing that 117V is the exact calculated
RMS value from some specific regulatory "peak" _nominal_ voltage.


In college I was taught that peak voltage = 1.414 * RMS voltage. In
that case, 117V RMS would equal 165V peak. The post I responded
mentioned "110 to 120", supposedly referring to the permitted range of
supply voltages. This differs from 165V.

You're getting confused. 110 to 120 (or more actually like 130)
is the permitted _RMS_ supply voltage range.

"110 to 120" is a quote from a particular poster. See the end of my
previous post.

The sinusoidal peak is
indeed in the 165V range.


Why would you think I'm confused? Do you disagree with what I said
about 117V RMS = 165V peak? About peak being 1.414 of RMS?

[snip]
--
Mark Lloyd
http://notstupid.laughingsquid.com

"Never underestimate the power of stupid
people in large groups"