861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11 139/214
Installation
31 Installation of rear walls of switchgear
➭ Fasten the fixing cross members at the retainers and the busbar housings using
2 bolts M8x30 each. Tightening torque: 20 Nm.
CAUTION
Environmental damages due to escaping SF
6
gas
If panels are filled with SF
6
gas, prevent the escape of SF
6
gas while mounting the fixing
cross members.
➭ Do not remove the busbar housing covers.
➭ Undo just one bolt at the busbar housing cover at a time.
Mounting position for intermediate panels or
end panels
Mounting position turned by 180° for intermediate
panels or end panels with
• disconnectable busbar voltage transformer
• disconnectable busbar connection
• make-proof earthing switch at the busbar
• top-mounted busbar sectionalizer
Fig. 164: Mounting fixing cross members on busbar housings
①
Fixing cross members for right and left end panels
②
The fixing cross member for intermediate panels is identical with the fixing cross member for end panels.
If a higher busbar housing with disconnectable feeder to the top was mounted, turn the fixing cross
member by 180°.
③
Switchgear front
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