Siemens NXAIR Installation Instructions Manual page 174

Closing the connection compartment / connection duct
Preconditions
•
Feeder earthing switch in CLOSED position
•
High-voltage door open
•
Low-voltage connector stowed away
•
Panel versions with withdrawable circuit-breaker / circuit-breaker truck or
withdrawable disconnector / disconnector truck only:
•
Protection plate of switching-device compartment available
•
Connecting elements available:
•
4 nuts M8 with contact washers
•
All panel versions except for contactor panels with panel width 435 mm and switch-disconnector panel:
•
Partition available
•
Connecting elements available:
•
10 bolts M8x20 with contact washers and plain washers size 8
•
5 bolts M8x20 with contact washers
•
Contactor panels with panel width 435 mm only:
•
Partition available
•
Connecting elements available:
•
7 bolts M8x20 with contact washers for the left part of the partition
•
Procedure
All panel versions except for contactor panels with panel width 435 mm and switch-disconnector
panel:
Install the partition (1) between the connection compartment and the switching-device
compartment.
To fix the partition (1), tighten the bolts all around hand-tight:
All panel versions except for contactor panels with panel width 435 mm:
Tighten the fixing bolts all around with a tightening torque of 25 Nm.
174
4 bolts M8x16 with contact washers for the right part of the partition
•
10 bolts M8x20 with contact washers and plain washers size 8 acc.
to ISO 7093 (2)
•
5 bolts M8x20 with contact washers (3)
3
2
1
Fig. 246: All panel versions except for
contactor panels with panel width 435 mm
and switch-disconnector panel: 15 bolted
joints on partition
NXAIR /
≤
40 kA 110-0084.9 / 15