Siemens NXAIR - Page 78

Assembling the panels
78 NXAIR / ≤ 40 kA 110-0084.9 / 15
Fig. 93: Assignment of assembly parts for insulating shells
(5)
Busbar
(6)
Insulating half-shells, mounted
(7)
Feeder bar
(8)
Strip fastener, shortened with protrusion
*)
Available for end panels
Busbar version with insulation
For panel versions with insulated busbar, insulating shells cover the joints of the busbar with the feeder bars,
and plastic tubes cover the horizontal bars from the busbar system.
The busbars are assembled like in panel versions with a rated voltage of U
r
≤ 12 kV (described above). Finally,
the insulating shells and plastic tubes are mounted additionally.
For assembly of insulating half-shells and strip fasteners, consider
Fig. 92
and
Fig. 93
.
Finally insert a plastic tube (1) on each horizontal bar of busbar system. Consider the
panel width and numbers of bars in the busbar system while fitting the plastic tubes.
Fig. 94: Detail view of busbar system with plastic tubes;
right end panel as an example
1
2