Location not requiring an exceptional degree of protection
A location that is not exposed to the environmental conditions outlined in the definition of 3.3.9. These locations include: a) accommodation spaces such as quarters buildings, b) dry store rooms, and c) other locations with similar environmental conditions.
Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards