Lining Up Further Panels; Completing Switchgear Installation - Siemens 8DA10 Series Installation And Operating Instructions Manual

Installation
Tightening the busbar
fixing bolts
Checking contact
overlapping of
disconnector contacts
Fitting protective caps
Correcting contact
overlapping of
disconnector contacts
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21.3

Lining up further panels

➭ Repeat the work operations (see page 64, "Preparing the flanges of the busbar housings")
until all panels are installed.
If required, mount loosely delivered panel connections and earthing busbars before lining up
another panel.
21.4

Completing switchgear installation

As a precondition for this work, the switchgear must have been completely assembled as
described above (see page 61, "Switchgear installation").
➭ Tighten the fixing bolts of all busbars and fixed contacts at all panel joints of the switchgear
(tightening torque: 30 Nm).
In CLOSED position, the contact fingers must rest exactly on the fixed contact of the
disconnector. Check the contact overlapping with suitable means. For open housing covers,
a welding mirror and a pocket lamp are suitable. For badly visible points, a stick-mounted
camera with a flex handle is suitable.
Fig. 64: Example for correct and incorrect position of the contact fingers on the fixed contact
➭ Fit the protective caps on the bolted busbar joints.
The coupling rod is pre-adjusted at the factory.
➭ In case of bad contact overlapping, check the busbar assembly and the busbar alignment
first. If required, correct the contact overlapping.
➭ If necessary, adjust by means of the coupling rods.
Fig. 65: Disconnector coupling rod
➭ Undo the locknuts ② at the hexagonal sleeve of the disconnector coupling rod ① .
Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • 861-9601.9
INFORMATION
① Protective cap
INFORMATION
①
②
Locknuts
Hexagonal sleeve of
disconnector coupling rod