Zone 1 is limited by the vertical surface circumscribing the bath tub or shower basin. Zone 1 is extended for showers without a basin for a fixed water outlet to a distance of 1.20 m from the centre point of the water outlet. Zone 2 is limited by the vertical surface at the boundary of zone 1 and the parallel. Zone 2 Bathroom Zone 2. Zone 2 of a bathroom extends horizontally from the edge of the bath tub or shower tray to a distance of 600mm and vertically from the floor level to 2250mm (2.25m) or the highest fixed shower head or water outlet, whichever is the highest - For example if the fixed shower head is mounted at 2700mm from the floor level then zone 2 will extend to at least 2700mm (2.7m.
![[DIAGRAM] Auto Ingress Wiring Diagram](http://www.ipf-light.com/catalog/924SL/924SL_di02.jpg "[DIAGRAM] Auto Ingress Wiring Diagram")
Example: A SELV light fitting in a spa bath. Zone 1. Description: The area above Zone 0, extending vertically up to 2.25m and horizontally up to 1.2m from the shower head. Requirements: Equipment must have an IPX4 rating or higher and be RCD-protected. Example: An electric shower with built-in RCD protection. Zone 2. Description: Extends 0.6m.. Window Recess Zone 2 Outside Zones Bathroom Zones Elevation Outside Zones Zone 1 Zone 0 13 amp socket-outlets are only permitted outwith a distance of 2.5 m horizontally from the boundary of Zone 1 and must be protected by a 30 mA RCD. Space under the bath tub or shower basin is Zone 1 if accessible without the use of a tool.