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Installation
Preparing the flanges of
the busbar housings
Positioning
the transport unit
74/214
Fig. 66:
Flange on the busbar housing
➭ Clean all vertical flanges of the busbar housings at the panel joint and the grooves for
the sealing rings carefully with lint-free paper.
➭ Carefully check the external contact surfaces ① of the flanges and the grooves ② for
scratches, other damages or pollution. Damages and pollution will cause leaks.
➭ If any external contact surfaces or grooves are damaged: Inform the regional Siemens
representative and co-ordinate the elimination of damages.
➭ Apply a thin film of the supplied mounting paste (e.g. Polylub GLY 801, 0.40 kg) on
the external contact surfaces of the flanges and the O-rings (sealing rings). To do this, apply
a grease strip of approx. 3 mm thickness on the external contact surfaces of the flanges.
➭ Put the O-rings into the grooves of the flanges.
22.2
Installing transport units
The transport unit to be attached is moved evenly by two people, if possible, using hydraulic
hoisting cylinders, hydraulic jacks or lifting jacks. A third person acts as an observer and
corrects the joining of the busbar sections and the flanges during the process.
ATTENTION
When joining the transport units, the busbar supports may be damaged.
➭ Join the transport units carefully.
➭ Observe the position of the busbar supports.
ATTENTION
Without roller pads / bars underneath, the transport units are moved using hydraulic
equipment or lifting jacks. The transport units may be damaged.
➭ Apply auxiliary devices at floor level and only at the base frame of the transport units.
➭ Place boards under the points where auxiliary devices are applied.
ATTENTION
Sensitive parts of the switchgear may be damaged during installation work at the busbar and
the busbar housings.
➭ While working at the busbars or the busbar housings, prop up only on the base frame of
the transport unit.
➭ Do not prop up on sensitive parts of the switchgear like gas pipes, bursting discs,
shafts, etc.
Revision 06 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • 864-5091.9
①
External contact surface of the flange
②
Groove for toroidal sealing ring
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