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3.5.2.2 Top plate removal from BIG compartments
3.4 Foundations
3.4.1 Foundation types
General aspects
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
Figure 38. 375 mm wide units
Figure 39. 500 mm wide units
Figure 40.
Figure 41.
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