Operating The Shutter To The Busbar Compartment In The Contactor Panel With Panel Width 435 Mm - Siemens NXAIR Operating Instructions Manual

Air-insulated switchgear ≤ 17.5 kv / ≤ 40 ka / ≤ 4000 a busbar current
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Closing the shutter to the connection compartment (lower shutter)
Push the handle of the slip-on lever slightly to the left (to release the latch) and let it slip
upwards. The shutter closes.
Remove the slip-on lever.
Remove the padlock from the left side in the switching-device compartment.
The shutter to the connection compartment is closed.
22.3 Operating the shutter to the busbar compartment in the contactor panel with panel width 435
mm
The mechanism for operating the shutter to the busbar compartment in the contactor panel with panel width
435 mm is different from the mechanism in the other panel versions.
110-0134.9 / 14
NOTICE
Maloperation
Risk of damaging safety-relevant parts.
Remove
the
switching-device truck in the switching-device compartment.
DANGER
Electric shock
If the busbars in the busbar compartment have not been isolated, the contacts will
be live at operational high voltage.
Always observe the Five Safety Rules.
Before opening the shutter to the busbar compartment:
Put on personal protective equipment.
Isolate and earth the busbars in the busbar compartment.
Verify safe isolation from supply.
Padlock the shutter mechanism on the right side in the switching-device
compartment unless you intend to open the shutter to the connection
compartment, too.
Open the shutter to the busbar compartment safely:
Only use the slip-on lever. Never try to open the shutter mechanism
touching it directly.
Always operate the slip-on lever outside the panel using the handle.
Always close the shutter to the busbar compartment:
Before interrupting operations inside the switching-device compartment.
Immediately after completing operations inside the switching-device
compartment.
NXAIR / ≤ 40 kA
padlock
before
inserting
Operating the shutters
the
withdrawable part /
289

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