D I S T R I B U T I O N S O LU T I O N S
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3.5.2.2 Top plate removal from BIG compartments
The plate is removed in the following way:
a) Unscrew the screw from the support.
b) Unscrew the screws from both ends of the top.
3.4 Foundations
3.4.1 Foundation types
General aspects
The switchgear must be erected on a foundation
that fulfils the requirement of a 2 mm maximum
horizontal height deviation in relation to the length
and diagonal of the switchgear.
These calculations must be made by technically
qualified personnel.
3.5 Installation procedure for units
3.5.1 Assembly of the first two switchgear units
WARNING
Before positioning the different switchgear units,
check the floor levelling, with particular attention
to the longitudinal flatness (maximum levelness
2/1000)
NOTE
If horizontal gas vent ducts are provided, mount
the joint brackets unit by unit right from the start
(see 4.6.2)
3.5.2.1 Removing roof plates
Plate dismantling is carried out as follows:
a) Unscrew the screws present at both ends of the
roof.
b) Remove the plate.
Figure 38. 375 mm wide units
Figure 39. 500 mm wide units
Figure 40.
Figure 41.
