Grounding The Motor Cable Shield At The Motor End - ABB ACSM1 Hardware Manual

13. Ground the other end of the supply cable shield or PE conductor(s) at the
distribution board. In case a mains choke and/or a mains filter is installed, make
sure the PE conductor is continuous from the distribution board to the drive.

Grounding the motor cable shield at the motor end

For minimum radio frequency interference, ground the cable shield 360 degrees at
the lead-through of the motor terminal box
or ground the cable by twisting the shield so that the flattened shield is wider than
1/5 of its length.
360 degrees grounding
Conductive gaskets
b > 1/5 · a
b
a
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Electrical installation