Assembling Panel Connections Supplied Separately And Filling Circuit-Breaker Housings With Sf 6 -Gas - Siemens 8DA Installation Instructions Manual

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Completing the assembly of
further busbar runs and fill-
ing with SF -gas
6
Assembling panel connec-
tions supplied separately
34
!
The limit value indicators on the pressure indicator of the busbar run have been pre-
adjusted at the factory. Check the limit pressures according to the table and the
graphics, and correct with the supplied square socket spanner in case of deviations.
!
Fill all other busbar runs as described above (see Page 30, "Completing busbar
assembly and filling with SF
8.2 Assembling panel connections supplied separately and filling circuit-breaker housings
with SF -gas
6
When panel connections are supplied separately, the circuit-breaker housing is not filled
with SF -gas at the factory.
6
To expose the desiccant bags as briefly as possible to the ambient air, the installation
work described hereafter is performed completely on one circuit-breaker housing in
one panel.
ATTENTION!
Desiccant bags that have been fitted in the circuit-breaker housings at the factory are
not effective anymore if the housings remain open for more than half an hour.
!
Replace desiccant bags in circuit-breaker housings that have been open for more
than half an hour.
Fig. 24: Bolted joint of flange for
panel connections
!
Remove the provisional cover underneath the circuit-breaker housing.
!
Prepare the flange of the circuit-breaker housing and the flange of the panel
connection for assembly (see Section "Preparing the flanges of the busbar housings",
Page 24).
!
Bolt the panel connection crosswise to the flange of the circuit-breaker housing
a
using M8x45 bolts
f
sleeve each. Tightening torque: 20 Nm.
!
Connect the earthing cable.
-gas").
6
a
Bolt M8x45
s
Contact washer
d
Plain washer
f
Insulating sleeve
s
, contact washers , plain washers
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d
and with one insulating