ABB ACS1000, Руководство пользователя

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ELECTRICAL INSTALLATION
PRODUCT
ACS1000W
DOCUMENT KIND
User manual
DOCUMENT ID.
3BHS213400 E01
REV.
J
LANG.
en
PAGE
94/166
7.6.2. Connecting the cables
7.6.2.1. 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 cable conductors unconnected at both ends until the commissioning
engineer has given permission.
7.6.2.2. Connections
Power and grounding cables
– Connect the feeder cable conductors to busbars
•
1U1, 1V1, 1W1, 2U1, 2V1, 2W1 (12-pulse and 24-pulse drive, Fig. 7 - 7)
• 3U1, 3V1, 3W1, 4U1, 4V1, 4W1 (24-pulse drive, Fig. 7 - 7)
– Connect the screens of all conductors and the shields of all cables to the PE
ground busbar (1 in Fig. 7
- 7).
– Connect the equipotential bonding conductor to the PE ground busbar.
– Tie the cables to the strain relief rails or to the designated holes on the cable
spacers (Fig. 7
- 8).
7.6.3. Bolted connections
7.6.3.1. 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]).
NOTE – Nuts with bonded coating can be used as an alternative to uncoated
stainless steel nuts.
CAUTION
Risk of flashover!
High voltages will be present in the terminal compartment. High voltages
can cause flashover between conductors with different electric potential,
and between a conductor and earth.
–
Maintain the following minimum clearances:
•
20 mm between conductors
• 40 mm between a conductor and earth