That document is dated 1999 and references a 1954 agreement.
The standards, in the "B" reference, go as high as 127-volts although having a
"target" of 120-volts. As I posted before, most, if not all, of the major
electric companies now have a target of 125-volts +/- 2-volts and run on the
"+" side, 127-volts, during the warmer months.
With the higher voltage, more power can be delivered over the same distribution
wires. There are still distribution wires (the higher voltage that runs down
alleys, streets, etc., that have been in place since at least the 1930s, 1940s,
and 1950s. The cost to replace these wires is prohibitive! As such, higher
voltages are now present.
The distribution voltages have gone from 4200-volts to 4800-volts (although
there are still some areas, primarily in very large cities, that have this
range) to now 7200-volts to 7800-volts or 14,400-volts to 15,600-volts using,
basically in many areas, the same distribution lines that were in place for the
4200-volts to 4800-volts. The cost of the "pole pigs" (transformers that take
the distributions voltages down to what is required at each house, etc.), and
their installation, is considerably less than replacing all of the distribution
lines as well as having to replace the transformers.
The "high tension" lines used to run 69 kV. Then, the voltage was increased to
138 kV, then 276 kV, then 345 kV, then 414 kv, and, today, there are lines
running as high as 552 kV. Most are running 345 kV these days but the higher
voltages can be found all over the country.
Glen, K9STH
Website: http://k9sth.net
From: Jim W7RY <jimw7ry@gmail.com>
To: RCM <robrk@nidhog.net>; Gary Smith <wa6fgi@yahoo.com>
Cc: AMPS submit <amps@contesting.com>
Sent: Sunday, December 11, 2016 7:28 PM
Subject: [Amps] AC Line Voltage
That is not right.
Here is a document that has the ANSI standards listed:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=19&ved=0ahUKEwj2gIyDwO3QAhUBViYKHQTcCJMQFgiBATAS&url=http%3A%2F%2Fwww.pge.com%2Fincludes%2Fdocs%2Fpdfs%2Fmybusiness%2Fcustomerservice%2Fenergystatus%2Fpowerquality%2Fvoltage_tolerance.pdf&usg=AFQjCNGhod1MCjzL3le3LggPui0FNTuVpA&sig2=M8qq2Gx-qQ9U7vMinVPcJw&bvm=bv.141320020,d.eWE
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