There is increased humidity in a bathroom, therefore when choosing a light for a bathroom don’t only choose by design, but also pay attention to used material. Sheet-metal lights will corrode after some time, that is why you should avoid buying cheap lights and rather ask a shop assistant about lights made of high-quality alloys, modern glass or plastics.
Depending on a degree of danger, potentially hazardous spaces are divided into the zones for bathrooms and shower enclosures:
Zone 0
Includes inner space of the bathtub or a shower enclosure tub – an example can be underwater lighting. It is allowed to use devices and lights with a low protective voltage up to 12 Volts, which are allowed to be installed inside a bathtub. They have to be equipped with a protection degree at least IP X7.
Zone 1
Includes walls and a ceiling above a bathtub and a shower enclosure up to a height of attachment of a shower head or at least to a height of 225 cm from the floor. The lights must be equipped with a protection degree at least IPX5 (protection against splashing water). In this zone, it is allowed to install some electric devices (water heaters, whirlpool bathtubs, lights etc).
Zone 2
Includes walls and a ceiling around zone 1 up to 3 metres from the floor and 60 cm in a horizontal axis.
The lights must be equipped with a protection degree IPX4, including all lights placed above a wash basin. For example, lights, bathroom fans, water heaters, shower waste pumps and devices for whirlpool bathtubs can be installed here.
Zone 3
In this zone can be installed power socket with 230 voltage with automatic power supply disconnection, using a current protector with a rated discharge current not exceeding 30 mA. In this zone you may install standard lights with a protection degree IP20.
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