[Amps] 220V service for amplifier

[R.Measures]

>Use a NEMA 6-20R and corresponding plug. For 20 amps, you need #12
>conductors or larger.  I use 3 #10 conductors with a 20 amp circuit breaker
>on my Centurion.

**  For powering a single-phase amplifier with a capacitor-type HV 
filter, it is better to go with larger gauge wire than the electrical 
code specifies because I-peak is typically 10x I-average for capacitor 
filters.  As a rule of thumb, for longish runs to big-uns, I use the 
largest gauge Cu wire that will fit in the receptical terminals.  
However, for resonant-choke filter supplies, the opposite effect takes 
place - but on a smaller scale, which is why Henry Radio's old 2k and 3k 
line of amplifiers are ideal for operation from a 120v outlet.
>
>The three conductors to the Centurion and to your (receptical) are two hot
>conductors and ground (not Neutral).  The centurion does not use the neutral
>to develop 120 volts for the fan on a 240 v connection.
>If you tie it to the neutral, there is a possibility of a voltage
>differentail between the amp chassis and the earth ground which can create a
>dangerous situation.
>
**  But only if the neutral wire is severed while the radio operator is 
standing in water without wearing  his fishin' boots.

>You should not tie the ground and neutral together anywhere except at the
>service entrance. For additional information see the National Electrical
>Code and various study guides at a local public library.
>
>Here is a link where you can see various recepticals, including the NEMA
>6-20R.
>
>http://www.evenheat-kiln.com/technical/recept/recept.htm
>
>Cheers.
>----- Original Message ----- 
>From: "Jason Buchanan" <jsb at digistar.com>
>To: <amps at contesting.com>
>Sent: Monday, December 01, 2003 10:19 PM
>Subject: [Amps] 220V service for amplifier
>
>
>>
>> I did some searching through the list but haven't managed to hit the
>> nail right on the head yet...
>>
>> For wiring a Ten-Tec Centurion amp to 220V, are there any recommended
>> plugs and outlets to use?
>>
>> I am thinking about using a 3 or 4 prong clothes dryer outlet and plug
>> combination for quick/easy disconnect, however the thing i'm wondering
>> about is where the neutral and ground tie together, since i'm fairly
>> sure that the Centurion doesn't have a 4 wire power cable running out of
>> it.  Maybe i'm wrong (probably am wrong).
>>
>>
>> Any help and advice how to properly wire the amp would be greatly
>> appreciated.
>>
>>
>>
>> thanks,
>> Jason
>>
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>
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