Pardon my ignorance.
I don't often work with this type of installation, and when I do it's under someone else.
That piece of pipe from the reducer to the transformer case looks all the world like a piece of flex exhuast pipe stuffed into a BX connector.
In all of my wanderings around the local warehouses I personally have never seen that style of conduit. I'm not saying there isn't,just I've never seen it.
It looks like someone cut the outer jacket off of a piece of metalic flex.
You have to give the installer a few points for creativity though.
TW
Never underestimate the perversity of an inanimate object.
