Bathroom zones are specific areas of set dimensions in a bathroom, shower room or wet room. Bathroom zones are not restricted to just bathrooms, the zones also apply to any room which contains a bath or shower, for example a shower in a bedroom.
Bathroom electrical zones do not apply to emergency facilities such as emergency showers used in industrial areas or labs.
Bathroom / shower room / wet room zones determine what electrical equipment can be installed and the minimum specification of that electrical equipment within a specific zone of a room containing a bath or shower.
BS 7671 Bathroom Zones
Bathroom zones consist of Zone 0, Zone 1 and Zone 2, there is no longer a bathroom Zone 3.