GE POWER/VAC 4.16 - Equipment Maintenance; Maintenance Recommendations

than
the
outside
.
Heaters
are
also
furnished
for
indoor
equipment
when
it
is
known
that
abnormal
atmospheric
conditions
exist
at
the
installation
,
or
when
specified
by
the
purchaser
.
By
maintaining
a
slight
temperature
differential
,
the
heaters
help
faciliate
drying
and
prevent
condensation
and
the
resulting
corrosion
and
insulation
deterioration
which
might
occur
.
Four
75
-
watt
heaters
are
provided
in
each
vertical
section
.
One
heater
is
located
in
each
breaker
or
auxiliary
compart
-
ment
on
the
bottom
at
the
rear
.
One
heater
is
also
located
at
the
bottom
of
each
cable
compartment
when
breakers
are
stacked
two
high
.
When
there
is
only
one
breaker
per
section
both
heaters
are
located
in
the
cable
compartment
at
the
bottom
of
the
section
.
Heaters
may
also
be
located
in
transition
compartments
and
in
bus
ducts
if
the
operating
conditions
require
them
.
Before
energizing
the
heaters
,
be
sure
the
power
source
is
of
the
proper
voltage
,
frequency
,
and
is
connected
in
ac
-
cordance
with
the
wiring
diagrams
furnished
with
the
equip
-
ment
.
Also
,
be
sure
to
remove
all
cartons
and
miscellaneous
material
packed
inside
the
units
before
energizing
the
heaters
.
X
00
m
00
ON
Of
LL
The
heater
circuit
should
be
inspected
several
times
a
year
to
make
sure
that
it
is
energized
.
1
—
Secondary
Coupler
2
—
Position
Switch
Actuator
3
—
Position
Switch
4
—
Ground
Shoe
5
—
Stationary
Auxiliary
Switch
Connect
Position
Actuator
6
—
Stationary
Auxiliary
Switch
7
—
Stationary
Auxiliary
Switch
Test
Position
Actuator
Fig
.
45
Stationary
Auxiliary
Switch
and
Breaker
Position
Switch
MAINTENANCE
CAUTION
:
BEFORE
ANY
COVERS
ARE
RE
-
MOVED
OR
ANY
DOORS
OPENED
WHICH
MAY
PERMIT
ACCESS
TO
THE
PRIMARY
CIRCUITS
,
IT
IS
ESSENTIAL
THAT
THE
CIRCUITS
BE
DE
-
ENERGIZED
AND
BREAKERS
BE
WITHDRAWN
TO
THE
TEST
POSITION
AND
TAGGED
.
conditions
with
mild
environments
as
defined
in
ANSI
Stds
.
C
37
-
04
—
1979
.
For
specific
information
regarding
the
maintenance
of
devices
such
as
circuit
breakers
,
relays
,
meters
,
etc
.
,
refer
to
the
separate
instruction
book
furnished
for
each
device
.
The
test
cabinet
,
which
is
furnished
,
provides
a
convenient
means
for
maintaining
the
circuit
breakers
.
A
permanent
record
of
all
maintenance
work
should
be
kept
,
the
degree
of
detail
depending
on
the
operating
con
-
ditions
.
In
any
event
,
it
will
be
a
valuable
reference
for
sub
-
sequent
maintenance
work
and
for
station
operation
.
It
is
recommended
that
the
records
include
reports
of
tests
made
,
the
condition
of
equipment
,
repairs
and
adjustments
that
were
made
.
A
ten
-
year
preventative
maintenance
recommendation
is
effective
for
Power
/
Vac
*
Switchgear
shipped
after
May
I
,
1982
.
It
is
not
a
guarantee
or
warranty
,
but
rather
a
recommendation
for
preventive
maintenance
based
on
ex
-
tensive
tests
and
proven
reliability
.
While
the
user
is
totally
^
^
responsible
for
determining
his
/
her
own
maintenance
policy
and
inspection
routine
,
this
recommendation
may
be
applied
to
Power
/
Vac
*
Switchgear
operating
under
service
43
Courtesy of NationalSwitchgear.com