Howdy,
Ok, perhaps I should back up and ask a more proper question... :-)
For 220vac single phase outlets in a garage, what plug configuration
should I be using?
In the past I've used 3 wire range outlets, but as per the below, I think
I was using them incorrectly and probably should have been using a 3-wire
grounding outlet instead.
The devices I'll be powering are standard 220vac suitcase welders, plasma
cutter, air compressor, etc. All of them currently have 3-wire non-ground
range plugs on them (which I suspect are actually wired to the device's
two line voltage inputs, along with the chassis ground).
Should I:
* convert everything to a 3 wire grounding outlet like
http://www.lowes.com/lowes/lkn?action=productDetail&productId=71246-334-1252-L
and use 6/2 wire to wire it up?
* leave the range plugs on the units and wire up the 3-wire non-grounding
range recepticals
(http://www.lowes.com/lowes/lkn?action=productDetail&productId=71240-334-112-L&lpage=none)
with 6/3 wire leaving the saftey ground in the wire unconnected at the
receptical.
* covert everything a 4 wire grounding outlet like
http://www.lowes.com/lowes/lkn?action=productDetail&productId=71248-334-1212-L&lpage=none
and wire it all up with 6/3 wire?
I'd like this to all be done correctly & safely #1, and support any future
220vac stuff I might want in the garage in the future #2.
Thanks!
Mark
On Mon, 18 Jul 2005, Randall wrote:
>> The outlets I have look like this:
>>
>> http://www.lowes.com/lowes/lkn?action=productDetail&productId=71240-33
>> 4-112-L&lpage=none
>>
>> They say they're a 3-Wire Range Outlet.
>>
>> The "straight" leg is only for a safety ground, correct? I.e. 6/2 wire
>> should be all I need?
>>
>> Or is there no safety ground and the straight leg is a neutral (i.e.
>> sometimes current carrying)?
>
> Note the description, which says "non-grounding". The third leg is for a
> neutral, there is no ground. And thus it would be wired with 6/3, not with
>6/2
> w/ground as you have.
>
> Here's an outlet you could use with your 6/2+gnd :
> http://www.lowes.com/lowes/lkn?action=productDetail&productId=71246-334-1252-L
>
> Randall
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