Siemens NXAIR M - Position Indicators Visible on High-Voltage Door; Access to Compartments; Opening or Closing the High-Voltage Door; Racking the Withdrawable Part

Operating the circuit-breaker panel with HV HRC fuse
84 NXAIR M 139-2021.9 / 07
13.2 Position indicators visible on high-voltage door
Circuit-breaker:
CLOSED position or
OPEN position
CLOSED
OPEN
▬
Withdrawable circuit-breaker:
Service position, intermediate position
or test position
Service position
Intermediate position
Test position
Spring state indicator:
CHARGED position or
NOT CHARGED position
CHARGED
NOT CHARGED
▬
Feeder earthing switch:
CLOSED position or
OPEN position
CLOSED
OPEN
▬
13.3 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:
Type of accessibility:
Switching-device compartment
Interlock-controlled
Busbar compartment
Tool-based
Connection
compartment
Access from the front side
Interlock-controlled and
Tool-based
Access from the rear side
Tool-based
13.4 Opening or closing the high-voltage door
The procedure for opening and/or closing the high-voltage door at the circuit breaker panel with HV HRC
fuse is identical with the procedure for opening and/or closing the high-voltage door at the circuit-breaker
panel.
For opening and/or closing the high-voltage door at the circuit breaker panel with HV HRC
fuse, see chapter 10.4 and/or 10.5.
13.5 Racking the withdrawable part
The procedure for racking the withdrawable circuit breaker / fuse combination to service position and/or test
position is identical with the procedure for racking the withdrawable circuit-breaker to service position and/or
test position.
For racking the withdrawable circuit breaker / fuse combination to service position and/or test
position, see chapter 10.7 and/or 10.8.