Installing The Rear Walls On The Connection Duct - Siemens NXAIR Operating Instructions Manual

Air-insulated switchgear ≤ 17.5 kv / ≤ 40 ka / ≤ 4000 a busbar current
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Accessing the connection compartment through the rear
To remove, pull the upper rear wall (2) downwards by the handle. Store the rear wall.
Access to the connection duct through the rear side is given.

24.4 Installing the rear walls on the connection duct

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INFORMATION
Final procedure steps
Immediately proceed to perform the intended checks and works in the
connection duct.
DANGER
Electric shock
To perform any kind of activities inside or near the connection duct of a panel, you
must ensure that the connection duct is safely isolated from supply. Without
isolation from supply, the cable connections in the connection duct will be live at
operational high-voltage.
Observe the Five Safety Rules.
Verify safe isolation from supply.
Make sure all openings on the rear side are closed by fixing bolts before
the panel is put into operation again.
Do not operate the feeder earthing switch during any activities inside or
near the connection duct.
CAUTION
Sharp edges
The metal parts of the rear walls may have sharp edges.
Put on personal protective equipment.
NOTICE
Danger due to damages
Possible malfunctioning and switchgear damage caused by foreign objects:
Remove all foreign objects from the connection duct, for example:
Tools
Unused installation material
Packing material
Cleaning material
NXAIR / ≤ 40 kA
110-0134.9 / 14

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