Paul,
Recently, I was working up in a roof of a mall, with our new Dutch Electrician, and we came across this Xformer marked in large Red letters,"Hael-strom".
Willem said we had better stay away from that one, as it translates from Swedish, to mean "Hell-Current", turns out it was driving a large Neon sign below the ceiling, in one of the shops, at 25,000V.
Have never forgotten the meaning of this word since. [Linked Image]