Assembly Of The Busbars (Feeder And Coupling Panels) - Siemens 8BT2 Installation And Operating Instructions Manual

Please make sure that tolerances for laying floor frame are as below:
Evenness tolerance..................±1mm within a measuring length of 1m
Straightness tolerance...............1mm per 1m, (not more than 2mm in total length of the switchgear)
Procedure
Weld the cross members in
the area of the holes with a
diameter of 17 mm down to
the U- profile supports in the
foundation.
Remove any dirt occurred during drilling or welding work. Extreme cleanliness is required during installation.
4.3.3.

Assembly of the busbars (Feeder and Coupling panels)

Access to the busbar Access to the busbar compartment can only be done from top of the panel by removing the
compartment of
circuit breaker panel
Removing the busbar
pressure relief flaps
881-4027.9 * INSTALLATION AND OPERATING INSTRUCTIONS 8BT2 * Revision 04
If necessary, place shims in the spaces between the switchpanel and the foundation in the area of
elongated holes.
Bolt the cross members inside
the panel frame to the C-
profiles in the foundation using
anchor bolts and shim plates.
Paint welding seams to prevent
corrosion.
Now the switchgear is fastened to the foundation.
When the switchgear is installed, the busbars can be interconnected between panels. The
busbars are temporarily attached to panels for transportation. The busbars on each panel are
provided for the interconnection of this panel with the panel on the left. Their bolted joints
are supplied separately.
pressure relief flaps.
Fig18. Removing the busbar pressure relief flaps at panels
Remove the fixing bolts of both pressure relief flaps (pos.nr.
busbar compartment
The pressure relief flaps over the busbar compartment can be removed.
Drill elongated holes 25 x 45 mm into the
concrete first, fill with plaster and insert
dowels with a diameter of 10 mm
including the matching screws.
in fig18) over the
33