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Table
4 .
Check Points
for Inspection
£
>
Checks should be done in accordance with INSPECTION AND
MAINTENANCE INTERVALS
Check Point
Check Item
No
.
Check Method
Criteria
Remarks
What
to
do
m
Z
1
Entire
Circuit
Breaker /
Switchgear
Visual check
,
check
tightness
with tools .
Tightness of
hardware
There should be
no
loose hardware
.
Table 2
,
Table
3
<
Pg
. 26
)
Retighten
loose
hardware
.
>
O
m
Dust and
foreign
matter
Visual check
.
The circuit breaker
should be clean and
contain no
foreign
matter
.
Wipe with a clean
dry
cloth
,
use a
brush or vacuum
cleaner
.
Deformation
,
excessive
wear
and damage
Visual check
.
There should be no
deformation
,
excessive
wear or
damage
.
Remove
cause
and
replace
parts
.
Visual
check .
Lost or missing
parts
There should be no
missing
parts
.
Reinstate
to
the
normal condition
.
Bus
supports
Visual check
,
check
tightness
with tools
.
Bus
supports must
be
secure
and undamaged
.
Replace damaged
parts
and tighten
unsecured
supports
.
Table 3
(
Pg
.
26
)
Enclosure
damage
Visual check .
Enclosures should
exhibit
no
damage
as
to
reduce electrical
spacing
.
Repair
as
necessary
.
Field
wiring
Visual
check
.
Field
wiring should have
proper clearance
to
live
buses
.
Provide
adequate
clearance where
necessary
,
physically
secure
.
T
>
0
)
(
O
(
D
(
A
)
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