The electrical equipment of the bathroom is subject to draconian standards…Water and electricity have never done well together! It is therefore important to know the standard NF C 15-100 to apply in your bathroom and above all understand! Build cheaper today explains what lighting to choose and where to install it.
The standard said…
The standard NF C 15-100 has then divided this space bathroom in volume (see photo) and gave rules for each of them. Firstly, you can check many other types of decoration for bathroom at the Kingsvilletrends.
It is defined by the internal volume of the bath or shower tray. Lighting protection IPX7 and class III in 12 V are allowed when food security is installed outside the volumes 0, 1, or 2.
It is located above the volume 0 and 2.25 m from the finished floor or the bottom of the tub (if it is raised). The luminaires of protection IPX4, class III in 12V are permitted provided that food security is out of volumes 0, 1 and 2.
It begins where ends the volume 1, in the case of a tub that’s the outer edge that matters, in the case of a shower we measure 1.20 m from the water supply. At the vertical level, it starts on the ground then ends at 3 meters from the finished floor (even if there is a false ceiling). In this part you can put type IPX4 class II in 230V lights.
It starts from volume 2 and continues to 2, 40 m, vertically it stops at 2.25 m from the finished floor. You can install protection IPX1 class 1 in 230V lights.
It concerns all the remaining volume. At this stage you can resume your electrical installation normally.
How to interpret the standard to a facility in the State of the art?
He must pay attention to the Index of Protection of the luminaire also called IP.It consists of 2 digits, for example IP65. Each figure has its meaning, the first (here a 6) indicates the protection of the equipment against solid bodies, the second digit (a 5) defines protection against liquid body. A luminaire IP65 will be totally protected against dust and jets of water from all directions to the spear. The most important for a bathroom is the second number (protection against liquids), that’s why the standard exposed here above give only this one. A luminaire for volume 1 or 2 must be IPX4 or IP24 IP44… Who can do more can do less… The luminaire can also be IP67!
Then there is the class of protection, for volume 1, the standard requires aluminaire of class III. Class III means that the electrical equipment is in very low voltage (12V) with a power supply (transformer) deported. The transformer will be installed either in volume 2 or 3 or in off volume. Class II means that the material has a reinforced insulation, it is not connected to the Earth. Class I informs us that the material has a main insulation, but the metal parts must be grounded.
Now you know the main rules to install lighting in your bathroom… Good work!
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