Plastic
sheathed lighting wiring may laid underneath over
the plaster; flat webbed house wires may only laid at
least six centimetres below the plasterwork. The
following regulations have been drawn the interests
of safety. There may transfor-
mers safety areas 0.
Safety area 2
This adjoins area and centimetres deep. Any lights
used areas and must have protection rating of
at least X4; for devices which spray jets water, for
example massage jets, lights must have protection rating
of least X5. one the two digits not given, this
is represented The first digit concerns resistance
to solid objects and dust; more important for bathroom
lights the second digit, which relates resistance/per-
meability water and damp. Safety area also
requires the use protection low voltage lights with a
maximum voltage Volts.
The protection rating lights’ operational safety
classification.
Protection class III
Lights for use with protection low voltage. Showers without shower trays generally
only cover area 1.25 metres above the floor.Plugs and switches may not installed areas
0, However, switches built lights are allowed
provided they not reduce the protection rating. Protection low voltage means that higher
voltage circuits supply low voltage circuit; the two must
be securely separated. The lower limit the floor; the area
stretches 2.
Three classes protection are also defined for lights;
these set out the scope protective provisions against
electric shocks:
Protection class I
Lights connected the mains earth. expressed two-digit code (Ingress
Protection).300
General information
Safety zones for the use lights the
bathroom
Bathrooms are damp rooms, and special care must be
taken wherever electricity and damp come together. They must have protection rating of
at least X7.
There are specific safety requirements for the rest of
the room. They are aimed avoiding hazards and acci-
dents.
Safety area 1
This defines the area within the vertical limits the bath
or shower.
Safety area 0
The area inside the bath tub shower tray, for example
when using underwater lights. Only appliances with pro-
tection low voltage maximum Volts may used;
these must specifically authorised for installation inside
baths/shower trays.
Schematic diagram the safety areas for
bathtubs and showers, with and without
a built-in partition
Bathtubs:
• Fixed plughole
Showers:
• Fixed plughole
.
Protection class II
Lights with additional reinforced insulation with earth
terminal. Three so-called safety areas for bathrooms are
set out the standard DIN VDE (Germany Industrial
Standard, Association German Electrotechnicians) 0100
Section 701. there shower tray, the upper limit is
defined radius 120 centimetres around the shower
head when hung up
