Position Indicators Visible On High-Voltage Door; Access To Compartments; Opening The High-Voltage Door - Siemens NXAIR M Operating Instructions Manual

Operating the circuit-breaker panel

10.2 Position indicators visible on high-voltage door

Circuit-breaker:
CLOSED position or
OPEN position
Withdrawable circuit-breaker:
Service position, intermediate position or
test position
Spring state indicator:
CHARGED position or
NOT CHARGED position
Feeder earthing switch:
CLOSED position or
OPEN position

10.3 Access to compartments

Regarding accessibility to the individual compartments, NXAIR M switchgear fulfills the loss of service
continuity category LSC 2B according to IEC 62271-200.
The degree of protection between the individual compartments is IP2X in standard design.
The type of accessibility is provided as follows:
Compartment:
Switching-device compartment
Busbar compartment
Connection
compartment

10.4 Opening the high-voltage door

30
CLOSED
Service position
CHARGED
CLOSED
Access from the front side
Access from the rear side
WARNING
Reduced safety
The closed high-voltage door is an important safety element of the switchgear.
The high-voltage door is exclusively opened for performing operational activities
inside the switching-device compartment, such as removing or inserting a
withdrawable circuit-breaker.
Close the high-voltage door:
If an activity inside the switching-device compartment is interrupted.
Immediately after an activity inside the switching-device compartment was
completed.
Before leaving the panel front.
OPEN
Intermediate position
NOT CHARGED
OPEN
Type of accessibility:
Interlock-controlled
Tool-based
Interlock-controlled and
tool-based
Tool-based
NXAIR M
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Test position
▬
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