Siemens NXAIR Installation Instructions Manual page 94

Medium-voltage switchgear
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Assembling the panels
Remove parts according to the following illustrations showing different panel versions.
Store all parts as well as bolts, nuts and washers for later use.
Align the end panel with the adjacent panel in horizontal and vertical position.
Establish the same level (1 mm/m) as for the adjacent panel using shims.
Bolt or weld the end panel onto the foundation rails without distortions.
Assemble the busbars and the transverse partition plate in / at the busbar compartment in the
adjacent panel.
Install and connect all removed parts in reverse order.
94
INFORMATION
Joining another panel covers the bolted joints of the transverse partition plate of the
adjacent panel:
Check the bolted joints of the transverse partition plate in advance with the
control tightening torques, and correct if required.
INFORMATION
Mounting the transverse partition plate on contactor panels with panel width
435 mm:
Approach the adjacent panel first, then fasten the transverse partition plate.
INFORMATION
When lining up contactor panels with panel width 435 mm and panels with panel
width ≥ 600 mm:
Screw the supplied connecting element of the earthing busbar in between
the panels.
INFORMATION
Before commissioning the panels, every compartment may only be permanently
closed by bolting under the following conditions:
The compartment is free from foreign objects and pollution
All previous assembly work inside the compartment has been fully and
properly completed
Verify completeness and correctness of the previous assembly work inside
every compartment. For this purpose, also check the control tightening
torques of the bolted joints, and correct the torques if required
Record the proper condition of every compartment after bolting together, so
that this is clear without any doubt before commissioning the switchgear.
NXAIR /
40 kA
110-0084.9 / 15

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