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BATHROOM LIGHTING ZONES
This is the area directly above the bath or the shower tray to a height of 2.25m above the floor. A minimum of IP:4 (splash proof) is required for normal domestic use.
This is the area over the bath tub or shower tray above zone1. This is the area external to zone1 and extends vertically 0.6m external to zone1 to a height of 2.25m. Protection required is the same as zone1.
This is the area shown above zone 2 in the illustration above. This is the area external to zone 2 to a distance of 2.4m from zone 2 and a height above the floor of 2.25m. The protection required for normal domestic use is IP20.
We recommend that you consult a qualified technician to ensure that all wiring and supply are protected in accordance with regulations before undertaking any work in a bathroom.
The above does not apply to communal baths and showers where jets of water are used for cleaning purposes.