GE AKD-6 - Page 13

Low Vohoge
Swifchgeor,
GEK-72101
It is imperative
that all cables
be adequately supported
to take
their
weight
off
terminals and studs,
and to
prevent
movement
during short
circuit.
Train
the
cables
in the
proper
path
to the
terminals,
using
temporary
lashing if
required,
and cut to the
proper
length.
Strip the insulation
to
the
desired dimension,
being careful
not
to
damage
any strands.
For
copper cables,
coat
the
cables with
D50H47
grease,
insert
the
cables
into the
terminals
and tighten
the set
screws
in
accordance
with values
shown
in Table
B.
For
aluminum
cables.
wire brush the
cable strands
thoroughly.
Immediately
after wire
brushing, coat the
cable
strands
with a
quality
oxide inhibiting
compound
such as
Penetrox A.
(or
other similar oxide inhibiting compound).
Insert
cables into the
terminals
and tighten the
set screws
in
accordance
with values
shown in Table
B. This
should
result
in the
oozing
of compound
from between
individual
strands.
Wipe off
the excess compound.
Bolt
the cable terminal connectors
to
the ends of the bars
in
the cable
compartment.
A non-oxidizing lubricant
(such
as D50H47
furnished with
each equipment) can
be used
at
these
connection surfaces,
Lash
the cables
permanently
to the
cable
supports.
11.
Remove
the lifting
brackets from the front and
rear
channels.
If equipment
is furnished
with
"add-on"
com-
partments,
brackets
at the rear cannot be
removed.
And
Flat
Washer
1A_20
'll.s-
16
Yz-13
5/8_tl
12. Remove all blocking
on relays and devlces.
13. Make
a
finai
inspection to
see
that
there are
no
tools,
construction materials,
or other foreign matter left in the
switchgear.
TABTE
B
TORQUE
VALUES FOR
CABLE TERMINALS
Wire
Size
6
Inch-
Pounds
100
100
100
Wire
Size
350,000
400,000
500,000
600,000
700,000
7s0,000
800,000
900,000
1,000,000
Inch-
Pounds
250
250
3
I
000
0000
200,000
250,000
300,000
1,250,000
1,500,000
1,750,000
2,000,000
0
00
150
150
125
tzJ
125
200
200
200
250
250
300
300
300
300
400
400
400
500
500
500
500
TABTE
A
TORQUE
VALUES
FOR
LOW VOLTAGE EQUIPMENT
HARDWARE
(COPPER
OR ALUMINUM)
Bolt
Size Foot
Pounds
With Prevailin{
Totque Locknut
With Finished Machine Nut ical
Sprin(
Washer
And Flat
Washer
Washer And
FIat
Washer
Or
Flat
Washer
OnIy
10
30
42
J)
l3