4.3.9.3. Bus Wire Connection; Final Installation Work - Siemens 8BT2 Installation And Operating Instructions Manual

4.3.9.3. Bus wire connection

4.4.

Final installation work

The bolted copper joints
with strain washer
M6
M8
M10
66
Arrangement in the foundation detail for the control cables:
NOTE!
The drawing in fig78 is taken from "Floor drawings" table at page24.
Fig78. Floor opening for control cable
at the foundation layout
The control cables are entered to the panel from the floor opening (pos.nr.2 in fig78). Then,
they are laid down to the low voltage compartment through the cable channel (fig79).
The bus wire is the electrical connection between panels.
Plug bus wires into bus wire terminal block in low-voltage compartment.
Fig80. Front view of the low voltage cabling
NOTE!
Please be aware of the below table regarding to the torque values during the control
process.
Control tightening
torque
6.8 Nm
17 Nm
35 Nm
Revision 04 * INSTALLATION AND OPERATING INSTRUCTIONS 8BT2 * 881-4027.9
Control cable
channel
Fig79. Control cable channel
M12
M16
The bolted steel joints
Low voltage
compartment
60 Nm
145 Nm
Control tightening