ABB
42
Uniswitch Operation and
Maintenance Manual
UNIS14GB 05-02
5.2 Maintenance intervals
Maintenance intervals We recommend carrying out the maintenance work at the following
intervals:
Table 5.1 Maintenance intervals for withdrawable type.
Activity
performed
According to
section
Time interval
in years
According to
number of
switching
operations
Inspection 5.3 4
1
Servicing 5.4 4
2
10 000
3
Repair 5.5 As required As required
1
Under more demanding service conditions, we recommend shortening this interval appropriately –
also sections 5.2 and 5.3.
2
According to results of inspection.
3
See the instruction manual for the circuit-breakers.
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