[TVARC] 220/240v Outlet (?)

[Larry Sheridan]

Hi Stan:

I installed dedicated 110v 20A and 220V 30A circuits into my shack about a
year ago.

The 110V circuit uses standard 20A 12-2 with bare ground Yellow Romex cable
feeding a standard 20A duplex outlet that will accept a 110V 20A plug that
has 1 horizontal blade and 1 vertical blade (standard 110V 15A outlets will
only accept 15A plugs with 2 vertical blades).  This circuit is fed through
a single 20A GFI breaker in the service panel.

The 220V circuit uses standard 30A 10-3 with bare ground Orange Romex cable
feeding a single 20A round outlet that will accept a 220V 20A plug using
straight blades instead of the industrial-type TwistLok plugs.  This
circuit is fed through a double 20A GFI breaker in the service panel.  This
circuit was wired with the 30A Orange Romex in case I want to upgrade it in
the future with 30A GFI & outlet to handle the Henry 2K Classic floor-model
amp currently in storage.

One thing to watch out for: assuming you are considering a linear amp, what
power feed configuration is the amp set up for?  Some older amps are set up
to run on a 2-wire 220V circuit, 2 hot wires with no white neutral wire,
such as Yaesu FL2100 and Kenwood TL922.  This works fine until you want to
install an option board like a soft-start-up board that runs on 110V &
needs the white wire, so you really should just go ahead and set up the
circuit as a 110/220 feed at whatever Amp rating you need.

The attached NEMA configuration chart may be useful, my 110V 20A circuit is
a NEMA 5-20R, my present 220V 20A circuit is NEMA 14-20R and my future 220V
30A would be a 14-30R.  While I was at it, I put in a 220V 50A outlet on
the garage workbench for a future welder (old habits die hard 😀 )
configured as NEMA 14-50R which is the same as the large motorhome RV's.

Hope this helps, & Best 73.

Larry Sheridan K4LES
307-630-5697





On Sun, Feb 13, 2022 at 5:38 PM Anthony Hackenberg via TVARC <
tvarc at mailman.qth.net> wrote:

> Hi Stan/W5PDQ,
>
> Yes, I had a dedicated 220 v line/outlet installed in my “Dream” ham shack
> here in The Villages.  Why?  In case I ever decide to run a high-power
> linear amplifier that requires power via a 220 v A/C circuit.  The same
> electrical contractor (Pikes Electric) that wired our house did it a year
> or two after we moved in.  Their crew did a great job.
>
> Stay safe from COVID-19 😷 💉💉
>
>
> 73,
>
> Tony/K4QR
>
>
>
> On Feb 13, 2022, at 17:30, Stan Musick <W5PDQ at outlook.com> wrote:
>
> Hello,
>
> Has anyone ever had a 220v dedicated outlet installed in their ‘Dream’ Ham
> Shack here in The Villages?
> I thought to ask, just to see if it’s worth perusing …
>
>   Thanks,
>   Stan, W5PDQ
>
>
> ______________________________________________________________
> TVARC mailing list
> Home: http://mailman.qth.net/mailman/listinfo/tvarc
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:TVARC at mailman.qth.net <TVARC at mailman.qth.net>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
> ______________________________________________________________
> TVARC mailing list
> Home: http://mailman.qth.net/mailman/listinfo/tvarc
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:TVARC at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/tvarc/attachments/20220213/e1edcca5/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: NEMA plug and receptacle configurations.pdf
Type: application/pdf
Size: 214035 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/tvarc/attachments/20220213/e1edcca5/attachment-0001.pdf>