[Elecraft] KPA500 Voltage?

Jim Brown jim at audiosystemsgroup.com
Mon Nov 14 13:41:49 EST 2022


On 11/14/2022 9:36 AM, Jon Poland wrote:
> My 12 year old house has 200 amp service.  I don't know why.  But since
> building it, we have shifted to 90+% LED lighting, high efficiency
> dishwasher, fridge, and clothes washer.  My entire lighting load at any
> given time is less than 120W.  A smart thermostat reduces AC and furnace
> loads.  The 2 largest electrical loads are the clothes dryer and gas
> furnace blower.  This house is also better insulated than any home I have
> ever owned - also reducing the furnace load (gas and electricity).

What you're missing, Jon, is that IR drop to that outlet that feeds the 
KPA500 is NOT the total load to the home, but primarily the IR drop FROM 
THE PANEL of the circuit that feeds the amp. The feed from the street to 
that panel is usually a small fraction of that.

73, Jim K9YC


More information about the Elecraft mailing list