3. INSTALLATION OF THE SWITCHGEAR AT SITE 25
3.3.1.2. Greasing the floor bars
When a standard foundation frame supplied by
ABB is used, remove the protective film. Grease
the top surfaces of the foundation frame or
raised false floor beams. This facilitates erection
and alignment of the panels
3.3.1.3. Preparing the panels
Important note
During installation, do not tread on the
marked pressure relief disks in the roof
plates of the panels.
• Dismantle the covers on the cable termination
compartments and the covers on the plenums
behind the circuit breaker compartments of all
panels.
• Dismantle the rear covers on the rear busbar
compartments if fitted.
• Screw two guide pins to each of the upper
brackets of the busbar compartments on the
side of the panel to be extended, using nuts and
dished washers (see fig. 3.3.2.1 a). In the case of
sectionaliser panels in double busbar design,
there is a further fastening bracket below the
busbar bushings of the circuit-breaker compart-
ment. Fasten the guide pins to that bracket us-
ing nuts and dished washers (fig. 3.3.2.1 b).
Important note
Guide pins are only to be fitted to one of
the panels at the joint between two
panels. The guide pins remain in the
relevant position after erection of the
panels and must not be removed.
• Lightly grease the guide pins for better sliding.
• Set up the furthest panel precisely at the speci-
fied position.
—
Fig. 3.3.2.1 a:
Fitting guide pins
—
Fig.3.3.2.1 b:
Additional guide pins
in a double busbar
sectionaliser panel
—
Fig. 2.3.2.1 a
—
Fig. 3.3.2.1 b
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