Installing Further Transport Units; Completing Switchgear Installation - Siemens 8DA Installation Instructions Manual

Tightening the busbar fix-
ing bolts
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!
Check whether the busbars have been pre-assembled with a post insulator
!
Align busbar and post insulator horizontally with each other using the clearance of
the busbar hole.
!
Align the busbars and the links so that the busbar sections are in line and the fixing
bolts will fit through the holes.
!
Tighten the fixing bolts just a little. The busbar sections must still be able to move.
7.3

Installing further transport units

!
Repeat the work operations (see Page 20, "Assembling the switchgear") until all
transport units are installed.
7.4

Completing switchgear installation

As a precondition for this work, the switchgear must have been completely assembled
as described above (see Page 20, "Assembling the switchgear").
!
Tighten the fixing bolts of all busbars and fixed contacts at all panel joints of the
switchgear. Tightening torque: 40 Nm.
!
Check overlapping of disconnector contacts using a mirror. In the CLOSED position,
the contact blades must hold the fixed contacts centrally.
!
If the contact blades don not hold the fixed contacts centrally in the CLOSED
position, the contact overlapping must be corrected with the disconnector coupling
rod (see below).
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