ABB ACS2000 User Manual page 69

Medium voltage drives
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e l e c T r i c a l i n S Ta l l aT i o n
89
Typical line and
motor cable
90
Line supply and motor cables
Typical cable entry
Further information
See Layout drawing in Appendix D - Mechanical
drawings, located on the CD, for information on:
• Project specific cable entry
• Distance between point of cable entry and
termination bars
See Appendix E - Wiring diagrams, located on the
CD, for information on:
• Designation, cross-reference and device-
identification conventions
Cable preparation
1
Copper shield
2
Ground conductor
3
Insulation
4
Copper conductor
DANGER
WARNING
89
CAUTION
Determining the cable length
NOTICE: If possible, do not cut cables inside the
NOTICE
terminal entry unit. Make sure that waste from
cable cutting and stripping cannot enter the
cabinet. Any waste which is accidentally
dropped into the cabinet must be removed.
The waste could cause damage or malfunction.
Enter the cables into the terminal entry unit to
measure the conductor length.
Mark the required conductor length, withdraw the
cable and cut it to the correct length.
See Standard induction motor
specifications for detailed cable
information.
2
Cable entry
Enter the cable through the entry plate and secure
per national and local code requirements.
1
1
Cable entry
2
Cable connector
1
3
90
4
Stress cones
Shielded power cables must be terminated with
stress cones and two-hole lugs. The lug holes need
to accept M12 [0.5 in] bolts, and accommodate
standard IEC (50 mm) or NEMA [1.75 in]
two-hole patterns.
Checking cable insulation
Check the insulation of each cable with a megger
before connecting it and verify that the results are
within the specification of the cable manufacturer.
Leave the cable conductors unconnected at both
ends until the commissioning engineer has given
his permission.
Cable connection
Cable lugs
Mount cable lugs suitable for M12 or 0.5 inch bolts.
Cables must be terminated with lugs according to
the specification of the cable manufacturer.
69
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