What is IP Zoning?

To illustrate IP zoning regulations, we show a bathroom area divided up into areas or ‘ZONES’ which are classified using the numbers 0, 1 & 2. Luminaires are then assigned an ‘IP RATING’ which indicated how much protection they provide against ingress of water and other particles. Each zone has a minimum IP requirement that must be met if a fitting is to be installed in this area.

• ZONE 0 (IP67 RECOMMENDED) Inside the bath or shower. Any Fittings used here must be SELV (max 12V) and have a minimum rating of IPX7 (protected against immersion in water).
• ZONE 1 (IP65 RECOMMENDED) Above the bath or shower to a height of 2.25m. A minimum rating of IPX4 is required. *(See note 1)
• ZONE 2 (IP44 RECOMMENDED) The area stretching to 0.6m outside the bath or shower and above the bath or shower if over 2.25. An IP rating of at least IPX4 is required. *(See note 1)
• OUTSIDE ZONES  (IP NOT ESSENTIAL) Anywhere outside zones 0, 1 & 2. Where water jets are not to be used for cleaning purposes, the general rules of BS7671 apply. *(See note 1)

1. In zones 1 & 2, if there are is a likelihood of water jets being used for cleaning purposes, a minimum of IPX5 is required 
2. In zones 1 & 2, SELV or 240V luminaires may be used (subject to IP rating)
3. The above information is intended as a guide only. For detailed information refer to the I.E.E. Wiring Regulations or speak to your electrician.

 IP Ratings Explained

“IP” (“Ingress Protection”) RATING
 

FIRST DIGIT 

Protection against ingress of foreign bodies e.g. tools, dust, fingers, ect.

SECOND DIGIT 

Protection against ingress of liquids i.e. IP44 is protected against solid objects greater than 1mm and water sprayed from all directions.