GE POWER/VAC 4.16 - Taped Insulation Instructions; Bus Bars Insulation; Taped Joints Insulation

(
1
)
Unbolt
and
remove
the
inter
-
unit
horizontal
barriers
from
the
vertical
sections
to
bejoined
.
Do
not
remove
the small
trays
on
which the
position
switch
,
auxiliary
switch
and
ground
shoe
are
mounted
.
See
Fig
.
45
.
(
2
)
Unbolt
and
remove
first
the
lower and
then
the
upper
unit
bus
cover
from
the
vertical sections
to
bejoined
.
The bus
compartments
to
the
two
sections
will
now
be
exposed
.
It
is
not
necessary
to
remove
the
secondary
coupler
or
the
racking
mechanism
chain
in
order
to
assemble
the
bus bars
.
See
Fig
.
21
.
W
<
N
rn
oo
ON
OO
<
N
00
•
w
-
*
UL
Fig
.
22
Bus
Insulating
Boot
TAPED
INSULATION
INSTRUCTIONS
FOR
5
&
15
kV
EQUIPMENT
The
following
insulation
system
involves
the
use
of
high
-
voltage
insulating
tape
&
electrical
grade
rubber
-
based
putty
*
,
0282
A
3529
,
pts
4
,
5
&
8
.
The
high
-
voltage
tape
will
be used both
as
a
filler
and
also
as
the
final
insulation
cover
-
ing
.
Overlap
any
expired
roll
by
1
/
2
turn
.
NOTE
:
Electrical
grade
putty
will
be
used
only
when
re
-
quired
to
grade
voids
and smooth
out
sharp
edges
of
joints
and
pothead
,
terminator
or
entrance
bushing
connections
.
SECTION
1
:
BUS
BARS
5
&
15
kV
Apply
appropriate
number
of
layers
of
high
-
voltage
tape
0282
A
3529
pts
4
or
5
(
2
"
or
4
"
wide
)
,
mastic
side
down
,
at
a
medium
(
A
)
tension
to
bus
bars
per
Fig
.
23
(
5
kV
and
15
kV
)
.
NOTE
:
All
bus bars
are
to
be
round
edge
type
.
SECTION
2
:
TAPED
JOINTS
5
or
15
kV
,
Figs
.
24
,
25
,
26
,
27
,
28
,
29
and
30
.
STEP
(
A
)
—
FILLER
5
&
15
kV
Apply
three
(
3
)
layers
—
1
/
2
lap
of
high
-
voltage
tape
0282
A
3529
pts
4
or
5
(
2
"
or
4
"
wide
)
,
mastic
side
down
,
at
medium
(
A
)
tension
over
all
bolt heads
,
nuts
,
bars
and
splice
plates
to
form
a
smooth
surface
for
taping
(
see
*
note
above
)
.
Any
bars
with
sharp
burrs and
edges
must
be
deburred and
smoothed
before
applying
tape
.
STEP
(
B
)
—
OUTERWRAP
5
&
15
kV
Apply
two
(
2
)
layers
,
1
/
2
lap
of
high
-
voltage
tape
0282
A
3529
P
-
4
(
2
"
wide
)
,
mastic side
down
,
maintain
-
ing
a
medium
(
A
)
tension
on
the
tape
while
wrapping
.
Begin
the
wrap
away
from
the
joints
,
overlapping
the
adjacent
insulation
,
(
epoxy
fluid
dip
,
thermoplastic
sleeving
,
cable
or
tape
)
by
three
(
3
)
inches
minimum
.
Where
potheads
or
porcelain
bushings
,
etc
.
,
are
to
be
wrapped
,
the
tape
must
overlap
the
first
porcelain
skirt
.
When
completing
the
wrapping
of
the
joint
,
do
not
keep
tension
on
the
last
2
"
or
3
"
of
tape
.
These
last
few
inches
should
be
laid
in
place
without
tension
.
This
will
prevent
the
tape
end
from
lifting
.
No
other
taping
or
paint
is
required
.
NOTE
:
Medium tension thins
a
.
030
"
x
2
"
tape
to
approx
.
.
024
x
1
%
"
,
and
.
030
x
4
"
thins
to
approx
. .
024
x
3
1
.
Vertical
Bus
Covers
2
.
Horizontal
Inter
-
unit
Barrier
Fig
.
21
Bus
Compartment
Cover
i
(
3
)
Install
the
lower
(
phase
3
)
bus
bar
(
s
)
from
the
right
-
hand
section
.
If
the
main
bus
uses
porcelain
inserts
,
take
extreme
care
not
to
chip
the
porcelain
when
installing
the bus bars
.
Position
the rubber
bushings
(
furnished
on
the bus
bars
)
in
the
middle
of
the
porcelain
through
which
they
assemble
.
Bolt
splice
plates
and
bus bars
together
,
following
assem
-
bly
instructions
as
given
under
CONNECTIONS
.
The
sequence
of
parts
from
rear
to
front
is
:
(
1
)
splice
plate
with
press
nuts
,
(
2
)
main
bus
bar
(
with
spacers
if
2
bar
bus
)
(
3
)
riser
bars
to
breakers
or
roll
-
outs
.
Next
,
install
the
middle
phase
2
bus
bar
(
s
)
in
the
same
fashion
.
(
4
)
From
the
left
-
hand
section
install
the
upper
(
phase
1
)
bus
bar
(
s
)
as
described
above
.
(
5
)
Place
the
PVC
bus
-
insulating
boots
,
such
as
shown
in
Fig
.
22
,
over
the
joints
and
secure
with
furnished
ny
-
lon
fasteners
.
Joint
insulation
is
now
complete
.
(
6
)
Replace
all
barriers
and
cover
plates
previously
re
-
moved
.
29
Courtesy of NationalSwitchgear.com