There are differing requirements between areas that must be explosion proof and
areas that must not have ignition devices within a specified distance to a
dispensing area. It sounds as though your requirements are for dispensing, which
may not require the explosion proof fixtures in the ceiling, yet may require
that there be no spark producing devices within a specified distance to a
dispensing location.

Check NFPA 45.
Mike Durham

"Faynor, Orson" wrote:

> I noticed that in a couple of explosion proof chemical stock rooms the
> explosion proof hardware is in place in the room, but the ceiling level
> electrical connections and the junction boxes are not explosion proof.
>
> All the fixtures and switches below ten feet are explosion proof.
>
> Is this OK ?
>
> Orson Faynor
> Safety Engineer
> California Institute Of Technology