Yeh, the real scary thing is that some of those graduates might well end as consultant engineers FFS. A few years a go, I was working on the Royal Arsenal site in Woolwich (a massive site) and one of the consultant engineers involved on that project was trying to get the electrical contractor on the part that I was involved with, to run a 2 phase supply to a double socket in the flats, not a twin socket, a double. Bad enough taking it to a twin in a domestic environment, never a good idea even with adequate labelling to the effect that 415v was lurking within the socket box.
So it is true then!
I've been told that the reason a lot of entertainment gear racked and bolted together in the UK is single-phase up to insane size consumers, is that the common lore in them isles is that 415VAC is going to kill you more deader[sic!] than a meagre 240 will.
Therefore, even if not codified, a lot of gear and installs are made single-phase just because.
The amplifier racks for the Turbosound Flashlight system (which are unusually standardised for such a product) therefore come with a 32A mains plug, even if they're three-phase, simply so that you shall be able to feed them from a one-phase-to-three-phase adapter if you rent them back to the UK.
When we had a BT satellite truck for our contribution link to the UK when I worked with the swedish OB production of an ice hockey world championship back in ´96, it did take some work to power it, because it came with a 3-pin 32A mains plug. Not a 5-pin 16A. Because that would be
Dangerous!
Hell, even 110 lukewarm 60Hz toy Volts will put a damper on your day in a most terminal fashion if you're unlucky. 415 is not much more dangerous than that. Dead is dead. End of story.
(Personal record: 405V system voltage, 315A fuse, very blown. I was not part of circuit.)