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[Mike Caldwell]

ALWAYS meter new plugs, especially non standard ones.  You would be surprised how often even regularly used plugs are miswired.  It isn't often an issue when using just one, but when you use multiples in different areas things can go poof quickly.

I know a place and I'm certain it was never changed but they had/have two standard 50 amp range outlets 14-50R wired with three phase!

[Mike Pyle]

Just did a site visit at a new-to-me events center, and they have a pair of these receptacles outside.  I've never seen them before; they don't appear to have a NEMA marking.  Has anyone used them?

Peter, I may have a used plug if you need it. It looks similar to some floor outlets that I used to run into at a hotel ballroom.

Also, in the past I worked in heavy equipment shops that used that type connector on all the big welders.

[Tim McCulloch]

One of my local hotels used to use connectors for electrical service that was not actually used, think of a 480V 3 phase twist lock, on all their internal distribution systems in the ballrooms.  The did this so any power connections would have to be provided by the hotel and billed to the client.  The breakout panels were equally janky (Code? What's a Code?).  The building was owned by a division of a local government agency but managed by a "brand you've heard of", and when *someone* called the County's building inspection (and city fire department), shit got fixed and a whole bunch of other electrical problems were addressed.  I heard from building engineering that it cost the managing company around $100k to fix all the problems they'd created.

[Caleb Dueck]

I heard from building engineering that it cost the managing company around $100k to fix all the problems they'd created.

Doesn't surprise me a bit from my experience with a large managing company; not sad they got their hand slapped.

[ProSoundWeb Community]