[Amps] 220V wiring: Was Question about safety ground connection

[Bill Aycock]

As is normal- I do not take much that Measures says as gospel- How many 
pieces of equipment, wired for 220 or 240, have you seen that have 
internal 120 usage? I have one dryer that has a 220 heater and lights 
and timers that run on 120. Do all your amps use 220 to the PS and to 
the fans? Not many.
Bill-W4BSG


R.Measures wrote:

>On Nov 15, 2005, at 5:20 PM, Gudguyham at aol.com wrote:
>
>  
>
>>In a message dated 11/15/2005 6:03:16 P.M. Eastern Standard Time,
>>lists at w1nr.net writes:
>>
>>Your  safest bet is to run 4 conductor wire and outlets.
>>    
>>
>
>However, in the event that some outside force* manages to sever both 
>the safety-ground wire as well as the neutral wire, a 5-wire system 
>with two safety ground wires would be safer.
>
>* - such as the sky falling -
>
>  
>
>>All new ranges  and
>>dryer circuits must be 4 wire.  As far as I am concerned, all new  
>>amplifier
>>circuits should be too.
>>    
>>
>
>Having zero-I flowing in two wires is better than having zero-I flowing 
>in one-wire?
>  
>
>>Mike,  W1NR
>>
>>
>>
>>Many amps like an Ameritron AL-1500 have a 3 prong plug.  2 hots and a
>>ground.  It does not require a neutral so you only need a 3 prong  
>>plug.  Any
>>appliance that requires 120/240 volts will require a 4 prong  plug as 
>>you say.  But
>>not all amps require 4 prongs.  However it is  good to have the extra 
>>wire in
>>the box if you come across an amp that does need  the neutral.
>>    
>>
>
>Sound advice
>  
>
>>_______________________________________________
>>Amps mailing list
>>Amps at contesting.com
>>http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>>    
>>
>
>Richard L. Measures, AG6K, 805.386.3734.  www.somis.org
>
>_______________________________________________
>Amps mailing list
>Amps at contesting.com
>http://lists.contesting.com/mailman/listinfo/amps
>
>
>  
>

-- 
Bill Aycock W4BSG
Woodville, Alabama