
AKD
-
6
Power
master
Switchgear
GEI
-
90890
'
.
#
AK
-
1
A
-
25
-
This
breaker
is
closed
The
gasket
for
outdoor
transformers
2
.
Route
the
control
cables
from
the
by
a
solenoid
.
The
solenoid
armature
is
and
flexible
bus
connectors
arefurn
-
linked
to
the
breaker
mechanism
and
its
ished
with
the
transformer
,
while
the
\
movement
,
operating
through
the
closing
hardware
for
connecting
bus
bars
and
mechanism
,
closes
the
breaker
.
transformer
flange
to
the
switchgear
is
supplied
with
the
switchgear
.
The
flex
-
AK
-
2
A
-
15
&
25
-
In
this
breaker
a
ible
connectors
must
be
bolted
to
the
solenoid
operates
a
spring
-
charged
mech
-
switchgear
copper
shown
in
Fig
.
16
.
anism
.
The
breaker
is
closed
by
discharg
-
ing
the
spring
.
When
a
hoist
is
provided
with
outdoor
equipment
,
it
is
shipped
mounted
and
secur
-
AK
-
2
A
-
50
,
75
&
100
-
In
these
break
-
ed
in
place
.
The
yellow
shipping
supports
ers
a
universal
motor
driving
a
gear
at
.
either
end
of
the
hoist
movable
track
4
reducer
charges
a
closing
spring
.
The
must
be
removed
as
shown
in
Fig
.
16
,
breakers
are
closed
by
discharging
these
To
free
the
hoist
dolly
another
shipping
springs
.
support
must
be
removed
*
The
support
is
held
by
two
1
/
4
-
20
nuts
and
lockwashers
,
one
on
each
stud
of
two
U
bolts
,
that
must
be
replaced
,
Fig
.
16
.
duits
through
the
wiring
trough
at
the
side
of
the
cable
compartment
and
connect
the
cables
to
the
terminal
blocks
in
accordance
with
the
connec
-
tion
diagrams
furnished
with
the
equip
-
rnent
.
\
3
,
If
the
control
conduits
enter
from
above
,
drill
the
top
cover
within
the
available
space
Indicated
.
.
.
Control
wiring
should
be
checked
with
the
connection
diagram
to
make
certain
that
all
remote
connections
are
made
,
all
fuses
installed
,
current
transformer
circuits
completed
,
loose
connections
tightened
.
5
.
The
cables
from
the
control
power
source
to
the
switchgear
should
be
large
enough
to
avoid
excessive
voltage
drop
when
the
circuit
breakers
are
operated
.
See
Testing
and
Inspection
.
FIELD
WELDING
PROCEDURE
The
field
welding
of
aluminum
bus
conductors
must
be
of
the
highest
possible
quality
,
Fialure
of
a
single
joint
in
service
may
cause
a
very
costly
shut
-
down
for
:
or
possible
replacement
of
equip
-
Manual
Tripping
rx
A
mechanically
operated
trip
button
,
.
i
'
)
mounted
on
the
breaker
escutcheon
,
oper
-
ates
the
trip
shaft
to
open
the
breaker
.
When
making
cable
connections
,
refer
Electric
Tripping
to
Fig
.
7
,
which
shows
a
typical
routing
and
support
system
.
Adequate
electrical
A
shunt
trip
device
is
an
accessory
and
mechanical
clearances
must
beprovid
-
electrical
tripping
,
A
normally
ed
between
conduits
,
cables
and
bus
.
Where
open
auxiliary
switch
"
a
”
contact
opens
the
the
cables
enter
the
unit
,
the
cables
can
be
control
circuit
after
the
breaker
opens
.
lashed
to
cable
supports
at
the
rear
of
the
cable
compartment
as
required
.
Bus
Bars
-
When
making
bolted
bus
bar
connections
-
to
adjoining
equipment
,
proceed
as
follows
:
Main
Cables
V
;
used
for
any
main
cable
connections
are
repair
cables
should
be
identified
to
ment
.
Before
made
,
the
indicate
correctly
their
phase
relationship
-
„
,
,
-
with
equipment
.
The
phase
sequence
is
Welding
Operator
Qualifications
-
surfaces
are
cleaned
with
a
clean
'
stenciled
over
the
feeder
studs
.
In
all
cases
,
Before
welding
the
actual
bus
installation
,
cloth
or
solvent
if
needed
,
the
carefully
follow
the
cable
manufacturer
'
s
welding
operatorsshouldbegivenanopport
-
contacting
surfaces
must
be
coated
.
recommendations
for
installation
of
cable
,
unity
to
practice
on
typical
joints
.
(
These
with
lubricant
,
D
50
H
47
,
furnished
as
well
as
the
instructions
contained
in
this
typical
joints
can
be
supplied
by
the
General
With
each
equipment
.
book
,
A
non
-
oxidizing
lubricant
,
such
as
Electric
Company
if
requested
well
In
ad
-
,
^
‘
‘
,
=
.
,
A
,
,
D
50
H
47
furnished
with
each
equipment
can
vance
of
the
actual
installation
)
.
These
b
.
Bolt
the
bus
bar
brackets
together
be
used
on
the
terminal
connection
surf
aces
,
typical
joints
should
be
welded
by
the
op
-
using
a
bolt
,
washer
(
2
)
,
and
stop
erators
to
be
qualified
,
under
identical
nut
for
each
bus
connection
.
Refer
Bolt
the
cable
terminal
connectors
as
conditions
,
(
vertical
)
welding
positions
,
and
to
Table
A
for
proper
torque
required
to
each
load
stud
,
depending
upon
temperature
to
be
encountered
In
the
actual
values
.
the
number
of
cables
to
be
connected
to
it
.
installation
,
These
welds
should
be
ox
-
_
-
•
,
,
.
All
cable
runs
should
be
as
straight
as
amined
for
over
-
all
appearance
,
Cross
-
Outdoor
Equipment
-
Assembly
of
out
-
possible
.
sections
,
removed
from
these
joints
suit
-
equipment
Is
the
same
as
for
the
ably
etched
,
must
show
weld
metal
to
the
indobr
equipment
with
the
following
oxcep
-
Two
cable
supports
are
provided
at
joint
root
,
be
reasonably
free
of
porosity
,
tions
:
the
rear
of
the
feeder
cable
and
bus
duct
and
have
a
convex
shape
.
terminal
compartment
.
Using
these
cable
supports
,
lash
the
cables
at
the
appropriate
If
so
desired
,
the
test
joints
may
be
level
as
required
in
the
bottom
of
the
cable
sent
to
the
General
Electric
Company
for
compartment
when
cables
enter
from
below
,
inspection
and
evaluation
.
For
this
,
contact
It
Is
imperative
that
all
cables
be
adequate
-
the
nearest
Apparatus
Sales
Office
,
ly
supported
to
take
their
weight
off
term
-
inals
and
studs
,
and
to
prevent
movement
during
short
circuit
.
a
.
After
the
silver
plated
contacting
door
1
.
Check
alignment
of
doors
on
outdoor
equipment
to
see
that
the
weatherproof
seal
has
not
been
disturbed
.
2
,
When
j
oining
shipping
packages
,
special
procedures
for
weather
-
proofing
must
be
followed
as
indicated
in
*
feig
.
16
.
The
joint
in
the
roof
between
units
and
shipping
splits
must
be
weather
-
proof
-
ed
.
This
is
done
as
shown
in
Fig
.
21
by
placing
a
rubber
seal
over
the
1
.
top
edge
of
the
roof
support
batten
so
that
the
roof
section
and
:
angles
butt
;
up
against
this
rubber
seal
on
both
2
,
Bolt
terminal
connectors
to
the
breaker
sides
*
Bolt
this
joint
together
,
using
.
load
studs
in
the
cable
compartment
.
3
/
8
-
16
hex
head
bolts
,
lockwashers
and
hex
nuts
.
A
roof
cap
is
placed
3
,
over
this
seam
and
held
in
place
by
the
roof
trim
.
Joints
between
trans
-
former
throat
and
switchgear
,
and
be
-
tween
shipping
splits
,
must
be
weather
proofed
as
shown
in
installation
dia
-
.
gram
Fig
.
16
.
Install
a
front
and
rear
batten
and
rubber
seal
at
the
shipping
joints
and
bolt
them
together
the
furnished
3
/
8
-
16
hardware
.
The
gas
-
shielded
consumable
-
electrode
process
is
recommended
.
Connect
main
cables
as
follows
:
The
weld
joint
used
in
-
splices
is
a
modified
butt
joint
.
The
following
points
Route
the
cables
as
required
and
lash
are
pertinent
:
them
to
supporting
structure
.
a
.
Before
welding
,
all
joints
must
have
1
/
8
”
minimum
space
at
the
root
of
the
weld
.
b
.
The
joint
and
joint
area
must
be
;
clean
of
any
foreign
material
.
c
.
Protect
the
insulation
from
the
arc
and
weld
splatter
,
d
.
Always
weld
uphill
.
e
.
If
the
temperature
is
below
freez
-
ing
.
preheat
the
bars
to
about
lOOO
F
.
Coat
the
connections
with
D
50
H
47
,
in
-
sert
the
cables
into
the
terminals
and
tighten
the
set
screws
securely
,
Control
Cables
Connect
control
cables
to
the
switch
-
gear
unit
as
follows
:
.
1
,
When
control
conduits
enter
the
switch
-
gear
from
below
,,
the
conduits
should
not
extend
more
than
one
inch
from
the
floor
,
The
control
cables
may
be
pulled
through
the
conduits
before
or
after
total
the
switchgear
is
installed
,
whichever
leave
gap
first
.
Weld
as
follows
:
split
with
Remove
the
lifting
plates
from
front
and
rear
of
the
switchgear
base
at
i
'
V
}
both
ends
of
the
shipping
split
joint
V
<
;
>
/
and
assemble
the
front
and
rear
splice
plates
as
shown
in
Fig
,
16
,
1
Clamp
the
splice
in
place
,
(
both
joints
)
is
over
1
/
4
inch
,
,
side
and
weld
the
largest
If
the
on
one
is
more
convenient
.
13
Courtesy of NationalSwitchgear.com