Bathroom lighting regulations
IP ratings (Ingress Protection Ratings)

All installations must comply to guidelines which are based on a zonal concept similar to that used for the installation of lighting around swimming pools.

Each zone rating (IP) is determined by the degree of risk of electric shock.

Zone 0

This is the area inside the bath or shower basin and is rated at IPx7.

Zone 1

Refers to the area above the bath or shower up to a height of 2.25 metres and carries a minimum rating of IPx4.

Zone 2

Covers an area 0.6 metres wide immediately next to, and all around zone 1, plus the area over 2.5 metres high directly above the bath or shower. Wash basins should also be treated as zone 2. The minimum rating here is IP x 4. Where water jets are likely to be used for cleaning purposes in zones 1 and 2, the rating is a minimum IPx5.

Outside Zone

Covers any area outside Zone 1 and Zone 2, there is no special requirement in this zone. Bathrooms are now allowed to contain a socket outlet, this must be located 3M outside Zone 1. Lighting circuits and any socket outlet circuit in a room containing a bath and/or shower must be provided with 30MA rcd protection.

Areas Around Sinks

Covers up to 60cm. Zone 2 IPx4 luminaires should be installed in this zone.

 

 

It’s all about the Lumens

There seems to be some confusion these days about how to measure the brightness of a bulb. It was relatively simple when we all used incandescent lights. You could choose from a 40, 60, 75 or 100 watt bulb, and we all have a rough idea how bright that will be. With the introduction of CFL and LED technology, this now has got a little bit more complicated.

Nowadays it’s all about the lumens!

A lumen is a standard unit of light as it is perceived to the human eye. Essentially it will tell you how bright something is, unlike a watt, which is actually a measurement of energy consumption or output. The lighting industry has standardised ways that it measures the total emission of light from a product and this information is now included on most product packaging.

Bulb Efficiency
Bulb TypeBulb Efficiency (Lumens per Watt)
Standard Incandescent Lamp Approx. 15 Lumens
Halogen Lamp Approx. 25 Lumens
Compact Flourescent Lamp (CFL) Approx. 50 Lumens
LED Lamp Approx. 80 Lumens

 

Below is our easy to follow traffic light system on how to select your energy saving bulb option.

 

Energy Efficiency

From March 2014, luminaries have had to carry an energy rating label in line with the EU Directive 874/2012

This label displays the energy efficiency range of the luminaire and the compatibility with the lamps on the market. The energy rating A++ (very efficient) through to E (least efficient) is calculated based on the lumen output and the wattage consumption. The more efficient the lamp, the higher the eco rating.

Where luminaires can be fitted with different rated lamps and/or the lamps are non-removable (LEDs) a bracket indicated compatible energy classes. Where some rated lamps are not compatible with a luminaire, these energy classes are marked out with an ‘X’.

A guide to current lamp types and their energy classes are as follows:

LED Lamps CLASS A, A+, A++
Compact fluorescent lamps (CFL) CLASS A, B
Halogen lamps CLASS C, D
Incandescent lamps CLASS E
 
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