Re: [Amps] AC wiring

[Gudguyham@aol.com]

In a message dated 10/18/2005 8:22:50 PM Eastern Daylight Time,  
aa4lr@arrl.net writes:


>  Now let's try 240 volts
> which would give us 2944/240=12.3 amps.   If your line voltage is  
> low and
> you have 220 volts the  current would be 2944/220=13.4 amps. From this
> example it is obvious  you can't run a full legal limit amp on even  
> a 20
> amp,  #12 wire, 120 volt circuit much less any 120/240 volt, 15 amp #14
> wire  circuit.

Seems to me that 12.3 A and 13.4 A are both less than 15 A. So  a #14  
circuit seems adequate for your  example.



FYI....An Ameritron AL-1500 will do 2300 watts output with 100 watts of  
drive. (FACT)
The AL-1500 comes from the factory with a power cord with a 240V 15A power  
plug and is fitted with 15A fuses.   A 240V circuit run to this  amp using #12 
wire will run this amp at 2300 watts out with no problems in SSB  and CW 
modes.  Surely a 15A circuit will suffice at legal limit.  The  important thing 
here is the length of the run from the service panel to the  outlet for the 
amp.  
If your voltage is way low, the Ameritron has a low  voltage tap you can use 
which ups the secondary voltage so that current again is  not an issue.  An 
amp such as an SB-220 can easily be run on a 240 line run  with #14 wire.  
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