Bathroom Zones

Using electrical equipment in bath or shower rooms has always needed care to ensure safety. Now the IEE Wiring Regulations (17th Edition) have identified particular zones within the bathroom to indicate what type of electrical equipment can be installed.

Bathroom Zones

ZONE 0
Inside the bath or shower. Any fitting used here must be SELV (max. 12V) and a minimum of IPX7 (protected against immersion in water).

ZONE 1
Above the bath or shower to a heigh ot 2.25m. A minimum rating of IPX4 is required* (see Note 1)

ZONE 2
The area stretching to 0.6m outside the bath or shower and above the bath or shower. An IP rating of at least IPX4 is required (see Note 1)

Outside Zones
Anywhere outside Zones 0,1 & 2. Where water jets are not to used for cleaning purposes, the general rules BS7671 apply* (see Note 1)

Notes:
1. In Zones 1 & 2. if there is a likelihood of water jets being used for cleaning purposes, a minimum of IPX5 is required.
2. Basins are not covered, however they are usually considered to be Zone 2.
3. Providing that the space under the bath cannot be accessed without using tools, that space is considered to be out of Zone. However – if in any doubt, please check.
4. The information contained on this page is for guidance only. Always refer to the current IEE regulations or a qualified electrician to ensure that you are guided by the latest regulations and code of practice.