LIGHTING REGULATIONS
All installations must comply with guidelines which are based on a zonal concept. The diagram below illustrates this concept and must be followed to ensure the safe installation of electrical appliances in the bathroom. These regulations apply to domestic installations only. Installations must be made in accordance with the current IEE wiring regulations and relevant building regulations. HiB recommends that all electrical bathroom products should only be fitted by a suitably qualified, Part P registered electrician.
Zone 2 covers an area 0.6 metres wide immediately next to, and all round zone 1. Wash basins should also be treated as zone 2. The minimum rating here is IPX4.
Outside Zone has no special requirements, unless water jets are likely to be used for cleaning purposes.
Zone 1 refers to the area above the shower up to a height of 2.25 metres and requires a minimum rating of IP44 or higher and if the fitting is 240V a 30ma RCD must be used to protect the circuit.
The IP (Ingress Protection) Standard describes a uniform system for classifying the degrees of protection provided by the enclosures of electrical equipment. For example, if a bathroom’s light is rated IP65, then the 6 means its ‘Protected against Dust’ and the 5 means its ‘Protected against Water Jets’ from a shower, tap or cleaning processes from any direction.
First numeral - protection against ingress of foreign bodies, E.G. Tools, dust, fingers, etc.
0
1
2
3
4
5
6
Protected against solid objects over 12mm (e.g. jointed fingers).
Protected against solid objects over 2.5mm (tools).
Protected against solid objects over 1mm (small wires).
Protected against dust - limited ingress permitted (no harmful deposit).
Totally protected against dust.
No protection
Protected against solid objects with a diameter of 50mm and over (e.g. Accidental insertion of hands).
Second numeral - protection against ingress of liquids.
0
1
2
3
4
5
6
7
8
Protection against indefinite immersion in water under specified pressure. It shall not be possible for water to enter the enclosure.
Protection against immersion in water. It shall not be possible for water to enter the enclosure under stated conditions of pressure and time.
Protection against conditions on ship decks (deck equipment). Water from heavy seas shall not enter the enclosures under prescribed conditions.
Protection against water jets. Water projected by a nozzle from any direction under stated conditions shall have no harmful effect.
Protection against splashing. Liquid splashed from any direction shall have no harmful effect.
Protection against rain.
Protection against drops of liquid. Drops of falling liquid shall have no harmful effect when the enclosure is tilted at an angle up to 15 degrees from the vertical.
Protected against drops of condensed water. Drops of condensed water falling on the enclosure shall have no harmful effect.
No protection
Water falling in rain at an angle equal or smaller than 60 degrees with respect to the vertical shall have no harmful effect.
Need further information or advice? Please contact our customer service on +44 (0)20 8441 0352
hib.co.uk
All sizes and measurements are approximate but we try to make sure that they are as accurate as possible.
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