24
5.2
VCB
5.2.1
Maintenance schedule
Sequence
No.
Work
Materials
Remarks
1.
Circuit-Breaker
1.1
X
X
X
–
1.2
Cleaning of cast resin components – Clean cloth
X
X
X
See note 1)
1.3
surfaces as shown in Fig. 34.
See Fig. 24
Perform 3 to 5 test operations of
ON/OFF.
grease
– Shell Tellus 32 oil
X
X
Note 2
Note 3
2.
Breaker pole
2.1
Replace vacuum interrupters
X
number (see rating plate)
3.
Breaker operating mechanism
Note 4
3.1
Replace motor M1
X
X
3.2
Replace closing spring
X
4.
Examine and replace if necessary
Note 5/Note 6
4.1
X
X
4.2
X
X
4.3
Leaking of shock-absorber
X
X
Fig. 18
Notes:
frequent intervals.
must not
anticorrosives.
Shell Tellus 32
Lubricants (for special requirement) are available from the
Summary of Contents for 8BK80
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