I looked at luminaires in or near bathtubs
and read three progressively safer installations starting @ 410.4d 550.14d 551.53b
now my quesion is why is a perminet building shower or tub different then a portable one.
why not just gfi and gasketed type encloser everthing.
I also looked at spa & hot tub in 680 installations and it calls for gfi and encloser under 7.6
