Connection
6.1 Electrical connection
WOGeneric TEAAC / 2008
30 Siemens AG Operating Instructions 1.03 1RQ671...-Z
6.1.6 Connection with aluminum conductors
Proceed as follows to connect up an aluminum conductor:
● Remove the oxide coating layer using a brush or file prior to inserting the aluminum
conductors in the clamps.
● Then grease the conductors immediately using neutral Vaseline in order to avoid re-
oxidation.
● Close off unused threads with a metal threaded plug.
NOTICE
The aluminum flow is determined by contact.
The aluminum flow is determined by contact following installation. The connection with
the clamping nuts can loosen as a result.
Correct this by retightening the clamping nuts after approximately 24 hours and then
again after approximately 4 weeks. Make sure that the terminals are de-energized
before you tighten the nuts.
[ID: 332.02]
6.1.7 Internal equipotential bonding between main terminal box and motor frame
The equipotential bonding connection between the ground terminal in the terminal box
enclosure and the machine housing is established via the terminal box fixing bolts and an
additional grounding cable on the outside.
The contact points for the equipotential bonding connection between the terminal box cover
and the terminal box enclosure are bare metal and protected against corrosion. [ID 1015.02]
6.1.8 Final steps
1. Before closing the terminal box, please check that:
– The electrical connections in the terminal box are tight and in full compliance with the
specifications above
– The motor is connected so that it rotates in the direction specified
– The inside of the terminal box is clean and free of any cable debris
– All gaskets and seals are intact
– The pressure relief device is intact Depending on the type of terminal box being used,
the pressure relief device can be implemented either by sealing the slots or by using a
pressure relief diaphragm.
Any damage may only be repaired after prior discussion with the person responsible
for the safety of the installation and only by using original parts.
2. Close the terminal box.
See section "Tightening torques for screw and bolt connections (Page 56)" for the
tightening torque of the M10 fixing bolts for the cover. [ID 1015.01x]
To Next Page
Loading...
