Preparing Busbar Assembly - Siemens 8DA Installation Instructions Manual

Removing the transport
blocks

Preparing busbar assembly

on the panel located on the
right of the busbar joint
Fig. 13: Preparing busbar assembly on the panel located on the right of the panel joint
a
Busbar housing of the panel located on the left of the panel joint
s
Assembly openings (horizontal flanges) in the busbar housings of
the panel located on the right of the panel joint
Re-assembling the busbars
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7.1 Preparing busbar assembly
During transport, fixing brackets retain the busbars at the open flange connections of the
busbar housings. The fixing brackets are bolted together with the flanges of the busbar
housings and the busbar ends.
ATTENTION!
If the switchgear is transported without transport blocks (fixing brackets), parts of the
switchgear may be damaged.
!
Do not remove the transport blocks until right before assembly.
!
Do not move the transport units over longer distances without transport blocks.
!
Switch all three-position disconnectors of the transport units located on the right
s
and on the left of the panel joint to READY-TO-EARTH position.
!
If there are any make-proof busbar earthing switches: Switch the make-proof busbar
earthing switches to OPEN position.
!
Remove the fixing brackets from all flanges at the panel joint.
This operation is only performed if there is a horizontal flange cover available on the
busbar housing of the panel located on the right of the panel joint.
!
Remove all horizontal flange covers from the assembly openings
f
housings of the panel located on the right of the panel joint.
!
Loosen the rear fixing bolts
This operation is only performed if one of the following devices is mounted on the bus-
bar housings of the panel located on the right of the panel joint:
• Disconnectable busbar connection
• Disconnectable busbar voltage transformer
d
Rear fixing bolts
f
Busbar housing of the panel located on the right of the panel joint
d
at the busbar ends.
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d
s
on the busbar
21