[Elecraft] OT: K3 and High Tension Wires

[Jim Brown]

On Sat,3/19/2016 3:42 PM, Phil Kane wrote:
>   "Low voltage" meant that the insulators were less than a meter long.:)

It has a very different meaning in the wiring of buildings. Low voltage 
is less than 25V RMS or less than 25VDC, and has less stringent 
requirements for protection by being installed in raceways (conduit, 
cable tray, etc.)  Most audio, video, RF, and control circuits in 
buildings carry low voltage. And that's why 24V is used for "low voltage 
lighting."

Our Chicago SBE chapter toured the Argonne National Accelerator Lab SW 
of Chicago about 15-20 years ago.When the engineering crew talked about 
the hundreds of power amplifiers running "a gallon" to referred to the 
hundreds of Megawatt power amplifiers that powered the accelerator.  
They told us the operating frequencies, and in the parking lot outside 
the building, you couldn't hear a peep from them!

73, Jim K9YC