Earthing The Feeder Manually - Siemens NXAIR Operating Instructions Manual

Operating the circuit-breaker panel

10.16 Earthing the feeder manually

Instruction label on high-voltage door:
In addition to these instructions, an instruction label on the high-voltage door informs about proper handling
of the operating lever for the feeder earthing switch.
Fig. 93: Instruction label on the high-voltage door
Preconditions
•
High-voltage door closed
•
Feeder to be earthed is isolated
•
Withdrawable circuit-breaker / circuit-breaker truck in test position
•
Operating lever available
•
Padlock (optional) removed from operating slide
•
For electromagnetic interlock (optional):
•
Electromagnetic interlock deactivated
64
NOTICE
Maloperation
A switching operation once started must be completed totally! A switching
operation that was not completed cannot be turned back.
Do not try to remove the operating lever at intermediate positions.
NOTICE
Maloperation
If the operating lever is not inserted correctly, the feeder earthing switch may be
damaged.
Insert the operating lever in the actuating opening as far as it will go.
NXAIR / ≤ 40 kA
110-0134.9 / 14