Earthing Or De-Earthing The Feeder; Removing Or Plugging On The Low-Voltage Connector; Taking The Withdrawable Part Out Of A Panel Or Inserting In A Panel - Siemens NXAIR M Operating Instructions Manual

14.10 Earthing or de-earthing the feeder

The procedure for earthing and/or de-earthing the feeder in the circuit-breaker panel for double-busbar
system is identical with the procedure for earthing and/or de-earthing the feeder in the circuit-breaker pane
version for single-busbar system.
Instruction label on high-voltage door:
In addition to these instructions, an instruction label provided on the high-voltage door of panel A informs
about the interlocking of the feeder earthing switch.
Preconditions

Withdrawable part in panel A and B in test position
For manual earthing and/or de-earthing the feeder in the circuit-breaker panel for double-
busbar system, see chapter 10.15

14.11 Removing or plugging on the low-voltage connector

The procedure for removing and/or plugging on the low-voltage connector in the circuit-breaker panel for
double-busbar system is identical with the procedure for removing and/or plugging on the low-voltage
connector in the circuit-breaker panel version for single-busbar system.
For removing and/or plugging on the low-voltage connector in the circuit-breaker panel for
double-busbar system, see chapter 10.17

14.12 Taking the withdrawable part out of a panel or inserting in a panel

The procedure for inserting and/or removing the withdrawable part in the circuit-breaker panel for double-
busbar system is identical with the procedure for inserting and/or removing the withdrawable part in the
circuit-breaker panel version for single-busbar system.
inserting and/or removing the withdrawable part in
For
busbar system, see chapter 10.19 and/or 10.20.
139-2021.9 / 07
HINT
In the panel version for double-busbar system, the withdrawable parts in the
panels A and B are interlocked against the position of the feeder earthing switch in
panel A.
In case of manual operation for the feeder earthing switch, between panels A and
B by the electromagnetic interlock.
Observe the instruction label on panel A.
Observe the release of the actuating opening of the feeder earthing
switch.
Fig. 163: High-voltage door of panel A:
Instruction label about the interlocking of the feeder earthing switch
Operating the double-busbar system
and/or
10.16.
and/or
10.18.
the circuit-breaker panel for double-
NXAIR M 103