Siemens 8DA10 Series Installation And Operating Instructions Manual page 72

Installation
Bolting the flanges of the
busbar housings together
72/214
Risk of damage to property
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.
➭ Flange-to-flange connections:
8 tighten M8x40 bolts crosswise (tightening torque: 20 Nm).
Fig. 59: Flange-to-flange connection
➭ Flange connections with compensator: Push insulating ring between the flanges.
Fasten M8x55 bolts crosswise with one insulating sleeve each (tightening torque: 20 Nm).
Fig. 60: Short busbar housing with compensator
➭ For flange connections with compensator, insulating sleeves must be inserted at the bolted
joints.
Fig. 61: Flange connection with compensator and
insulating sleeve
Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • 861-9601.9
NOTICE
①
②
③
④
⑤
⑥
⑦
⑧
①
Busbar housing
② Toroidal sealing ring
①
Busbar housing
(bolts M8x55)
②
Toroidal sealing ring
③ Insulating ring
(thickness: 18 mm)
④ Compensator
⑤ Busbar housing
(bolts M8x35)
Hexagon head bolt M8x55
with washer
Busbar housing
Plain washer
Insulating washer
Insulating sleeve (2x)
Insulating ring
(thickness: 18 mm)
Hexagon nut with washer
Toroidal sealing rings