This bathroom electrical zone refers to the area directly above Bathroom Zone 0, extending up to 2.25 metres from the floor. In Bathroom Zone 1, electrical fixtures must be water-resistant to handle splashing and occasional moisture, with a minimum rating of IPX4 (or IPX5 when water jets are present). When choosing products for this bathroom zone, it's essential to ensure they meet the.
Equipment is either in a zone or outside a zone and this can be easily determined by measurement. The height of zone 1 and zone 2 are limited either by the horizontal plane corresponding to the highest fixed shower head or water outlet, or the horizontal plane lying 2.25 m above the finished floor level, whichever is higher. Zone 2 for a bathroom is the same height as zone 1 (2.25m) extended to 0.6m around the bath.
The extent of the zones in a bath or shower room can be limited by floors, ceilings and walls. Bathroom Zone 1 - IPX4 The area above the bath or shower tray area to a height of 2.25m from the finished floor level. In this zone a minimum rating requirement is IPX4.
Recommended extractor fans which are rated to a minimum of IPX4 include: Silent 100 Silent Design 100 Profile 100 Classic 100 EBB Design EBB 100 N Filterless Extract Fan. Zone 1 Requires a minimum of IP44. This is the area directly above a bath and within a shower cubicle, up to 2.25M in height.
Zone 2 Same as above, requires a minimum of IP44. Zone 1 Applies to the area around the bath or shower up to a height of 2.25m above the floor and at a radius of 1.2m from the water outlet. A minimum rating of IPX4 is required.
If the fitting is 240V a 30mA residual current device (RCD) must also be used to protect the circuit in this zone, i.e. SELV with the transformer located beyond zone 2. If there is a likelihood of water jets being used.
A downlight above a shower will almost always be in Zone 1. Zone 2 Same as above, requires a minimum of IP44. This is the area extending 0.6 m horizontally outside of Zone 1 around the bath or shower, up to 2.25 m in height.
For areas outside of these zones (formerly known as Zone 3), normal rules apply and no specific IP rating is required. Zone 0 Bathroom Lights are for the inside of the bath or shower itself. Any fitting used in this zone must be low voltage, (max 12v) and be rated at least IP67 which is total immersion proof.
Zone 1 Bathroom Lights can be used in the area above the bath to a height of 2.25m from the floor. In this zone a minimum rating of IP45 is required. Zone 1: The area directly above the bath or shower, up to around two and a quarter metres high Zone 2: This covers the area around the bath, shower and basin, usually within about 60 centimetres Zone 3 (also referred to as 'Outside Zones'): These are basically any areas that lie outside Zones 0, 1 and 2 and where no water jets will be used.
Zone 1 covers the area directly above the bath or shower up to a height of 2.25 metres from the floor. In this zone, any electrical fitting is likely to come into contact with water vapour, making it crucial for all devices to have an appropriate IP rating.