On 7/19/2020 5:44 PM, wrote:
On Sun, 19 Jul 2020 15:59:33 -0500, Dean Hoffman
wrote:

On 7/19/20 10:46 AM, wrote:
On Wed, Jul 15, 2020 at 9:05PM, UTC-5, Clare Snyder wrote:
On Wed, 15 Jul 2020 15:07:42 -0700 (PDT), AK
wrote:

On Wednesday, July 15, 2020 at 3:40:37 PM UTC-5, Ed Pawlowski wrote:
On 7/15/2020 4:28 PM, AK wrote:
Is there a way to attach this so it does not come loose when I am removing cords?

Thanks.

https://imgur.com/a/AaRGYH9


Yes, replace it with one like third one down that has a screw to hold it
in place
https://www.amazon.com/outlet-extend...utlet+extender

Thanks Ed.

Andy
The first step is to wire the box properly. You can't connect a box
with extention cord like that. Buy a proper "power bar" and plug it in
where you have that cord plugged in (you didn't REALLY" hardwire" that
circuit with fleible extention cord, did you????

People do stuff like that and wire up outlets to 277 lighting voltage every year. But,UL laboratories expect that from the peanut gallery, so these devices and other hardware (both hardwired or plug-in) can usually take the abuse of the wrong voltage/current/ wiring combo.
(not that that should ever be the aim, though)

That would be pretty difficult to do in a typical American house.
I bet the vast majority aren't close to a 277 volt circuit.
American farms have three phase 480 for irrigation and possibly
grain drying. The irrigation ones are typically a long ways from a
house and supplied with an individual meter.
Grain drying is often supplied with electricity to run the fans and
propane or natural gas to supply the heat. I don't work with those so
can't say what the electrical supply would be. Three phase 240 is a
possibility. That would run the larger fans and still allow power for
the house.

That is a place where you are likely to see center tapped delta. The
small red leg transformer gives them 3p 240 and the big transformer
provides the single phase 120/240. The PoCo gets away with 2
transformers.

Out here there are miles and miles and miles of farm distribution lines
that aren't 3P to start with...so that's out.

Most use a rotary phase converter for large loads...the elevator leg
here just has a (physically huge) single phase 10 hp motor. The grain
dryer was only a 5500 bu bin so didn't have that large a fan.
Commercially-sized and large farm bins are much more demanding but I
don't know just how much HP they are pulling...

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