ᐅ Are electrical cables allowed to be installed under a shower?

Created on: 3 Jan 2019 23:14
B
blaupuma
Hello everyone,

we are currently building, and the electrician has installed a cable under our shower. The cable then runs up through the shower wall and through the exterior wall (outdoor light).

Now I’m wondering if this is actually allowed?
The electrician says it is.

So the cable lies on the base slab.
There will be screed and insulation on top of it, and plaster and tiles on the wall.
(The cable is chased into the masonry.)
blaupuma4 Jan 2019 20:45
Tom1607 schrieb:
.


Why was the comment removed?
Knöpfchen4 Jan 2019 20:51
It is still unclear whether the cable was installed within the INSTALLATION ZONE.
Or not?
T
Tom1607
4 Jan 2019 21:04
I wanted to change that, but then only one point remained....

Here is again what I wanted to include, a quote from ElektroPraktiker regarding VDE 0100-701 cables in damp rooms:

Preferably, in Zone 1, cables should be installed from the back side. Cables and lines intended to supply other rooms—cables and lines designed to supply appliances and equipment in other rooms—must be embedded at a minimum depth of 6 cm (2.4 inches) measured from the bathroom wall surface (see image ➓). If this condition is not met, such cable and line installations are still permitted within rooms containing a bathtub or shower if one of the following conditions is fulfilled: the circuits are protected by additional residual current devices (RCDs) with a rated residual operating current I ΔN ≤ 30 mA and are equipped with a continuously connected protective conductor. • The circuits are protected by low voltage through SELV or PELV or by protective separation.
blaupuma4 Jan 2019 21:07
I have no idea whether they are protected or not.

It’s just state of the art, and you said this was mandatory anyway.
T
Tom1607
4 Jan 2019 21:08
It is different when it comes to flush-mounted conduits:

Use of flush-mounted conduits. Flush-mounted conduits are not allowed to be installed within rooms containing a bathtub or shower up to a depth of 6 cm (2.4 inches), measured from the wall surface of the bathroom.

Maybe that is what the colleague means.
T
Tom1607
4 Jan 2019 21:11
If the distribution board is built according to the current standard (which I assume for new constructions), then all electrical circuits are protected by RCDs (RCCBs).

The current standard also includes lighting circuits, although I don’t know any professional who hasn’t already protected those with RCDs (RCCBs).

So, I wouldn’t worry about that.