Eaton SVS/12, User Manual

Page: 34 / 138

SVS/12
34 994.530 G01 02
3.1.2 Ceiling
If the ceiling is prone to condensation, it is advisable to fit
an additional ceiling made of, for example, hardboard
(Masonite). Fit this board with the rough side facing
downwards and ensure a certain amount of ventilation
between the board and the roof.
3.1.3 Floor
.
The floor on which the installation is placed must be flat
and with a smooth finish, so that the sheet steel foundation
frame of the switching equipment has good contact with the
floor. The installation must be fixed to the floor at least at
the four corners.
The fixing holes in the floor must be made in accordance
with the floor plan drawing supplied with the installation.
All openings between the space where the installation is
set up and the space below ground level from where the
medium and low-voltage cables are introduced must be
thoroughly sealed. This is necessary for rooms both with
and without a transformer.
Cable trench
Fill the cable trench with gritty sand and then cover it with a
material such as polyurethane foam.
Cable cellar
Thoroughly seal the opening between the switchroom and
the cable cellar using, for example, polyurethane foam,
after proper support has been provided. The polyurethane
foam must have a closed cellular structure.
3.1.4 Ventilation
Avoid unwanted air circulation; make sure that doors close
properly. If the installation is set up near to heavy vehicular
traffic, try as far as possible to prevent air displaced and
polluted by the traffic from entering directly through the
ventilation slots.
Rooms without a transformer
Avoid air circulation inside the room; cooling of the
switchgear is not necessary. One single ventilation slot can
be provided, but this must be low down in the room.
3.1.5 Heating
The measures described in 3.1.1 to 3.1.4 will usually be
sufficient to satisfy the set-up conditions of IEC 62271-1.
If, in special cases, these measures appear to be
insufficient, each panel containing a heating element (see
chapter 1.4.3) must be connected to an auxiliary supply of
110
– 220 VAC or DC.
3.1.6 Storage conditions

The installation must be packed for storage.

The climatological conditions must at least correspond
to those of the switchroom (see chapter 3.1.1).

Appropriate steps must be taken to avoid contamination
by dust and moisture (rain, snow, condensation) or
mechanical damage.