Checking High Voltage Connections; Checking Bolted Joints; Checking Control Cable Connections; Cleaning The Switchgear - Siemens 8BT2 Installation And Operating Instructions Manual

with contact washer
M6
M8
M10
M12
M16
4.4.1.

Checking high voltage connections

4.4.2.

Checking bolted joints

4.4.3.

Checking control cable connections

4.4.4.

Cleaning the switchgear

4.4.5. Checking and completing protection against adverse environmental influences (protection against
corrosion)
4.4.6.

Checking installation work

881-4027.9 * INSTALLATION AND OPERATING INSTRUCTIONS 8BT2 * Revision 04
torque
9 Nm
26 Nm
51 Nm
90 Nm
221 Nm
Perform the following tests on all connected high-voltage cables:
Check tightness of bolts with torque wrench.
Check earthing of cable sealing ends.
Perform random checks of bolted joints on busbars and pressure relief ducts with the
torque wrench.
Check the following screw-type connections of control cables:
Perform random checks of the control cable connections on devices and terminal blocks.
Check all control cable connections of current transformer terminals in low-voltage
compartment (including slides and jumpers).
If there are any terminal blocks without labels, complete labels using the information given
in the circuit diagrams.
The bushings and the post insulators of the busbars, especially the openings to the switching
device compartment must be free of grease and other pollution.
Wipe all bushings and post insulators of the busbars using a soft, lint-free, dry cloth.
Touch up scratches and impact marks on surface painting
The following products can be supplied for touching up the surface:
• Paint pen for minor paint damages
• Touch-up paint, 1 kg tin
Check whether all installation work has been performed properly in accordance with the
previous sections of installation.
67