78 Electrical installation
Power cable entry from bottom ((1) screen extensions to ground)
Checking the cable insulation
• Check the insulation of each cable before connection and verify that the results are
within the specification of the cable manufacturer.
• Leave the cables unconnected at both ends until the commissioning personnel has
given permission to connect them.
Connections
Connect the cables to their corresponding busbars:
• Feeder cables to busbars U1, V1, W1
• Motor cables to busbars U2, V2, W2
• Screen ends of all conductors and the shields of all cables to the PE ground busbar
• Ground cable to the PE ground busbar
Bolted connections
Material requirements
• Use stainless steel bolts and nuts with the appropriate steel grade and property class
for the connection (recommended: A2-70 [designation according to ISO 3506]).
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