The main disconnect must be external to the building, and plainly marked. As I
said, it is so the fire department can make the building cold without waiting
for the power company to show up and pull the pole fuses.


Of course, and here in CA it is not uncommon to find six disconnects on the
exterior of a multiple-use building, even though some of the units may not be
"continuously occupied".

We don't use pole fuses here, except on the line side of a large customer fed
from the utility's subtransmisson system.