I.
B.
694C694-02
SECTION 2: RECEIVING, HANDLING AND
INSTALLATION
2-1
GENERAL INFORMATION
Types DSll and DSLll Circuit Breakers, when supplied
as part of a metal-enclosed switchgear assembly may
~e
sh~pped
cof'!lpletely assembled and already
in~talled
in
their respective breaker compartments. Receiving
and handling of this equipment is addressed
in
an
assembly instruction manual supplied with the assem-
bled equipment. This instruction manual still applies,
however, to all other aspects of the circuit breakers.
Before beginning to unpack new DSll breakers, read
and understand these directions. Following the direc-
tions will ensure that you have caused no damage.
Every effort is made to insure that DSll breakers arrive
~t
their destination undamaged and ready for installa-
tion. Care should be exercised, however, to protect the
~reakers
fr~m
imp~ct
at all times. Do not remove protec-
t~ve
pac~aging
until the breakers are ready for inspec-
tion, testing and/or installation. Shipping containers
should
be
inspected for obvious signs of rough handling
~nd/or
external damage incurred during the transporta-
tion phase. Record any observed damage for reporting
to the transportation carrier and Cutler-Hammer, once
the inspection is completed. All reports and claims
should
be
as specific as possible and include shop
order and general order information.
2-2 UNPACKING CIRCUIT BREAKER
When ready to inspect and install the DSll breaker
carefully open the shipping container and remove
~ny
packing material and any internally packed documenta-
tion. The circuit breaker is designed and balanced to be
easily lifted from the shipping container using the appro-
priate lifting yoke and
an
overhead or portable lifting
device.
A CAUTION
DO NOT ATTEMPT TO LIFT BREAKERS WITH ORDI-
NARY CRANE HOOKS, ROPES, CHAINS OR OTHER
SUCH DEVICES. FAILURE TO FOLLOW THIS CAU-
TION COULD RESULT IN DAMAGE TO VITAL
PARTS SUCH
AS
ARC CHUTES, BARRIERS AND
WIRING.
Effective
07
/97
Page
5
2-2.1 STORING CIRCUIT BREAKER
If it is necessary to store a circuit breaker before instal-
lation, do so
in
its original shipping container. Keep the
circuit breaker
in
a clean dry place. Ensure there is
ample air circulation and heat, if necessary, to prevent
condensation. It is very important that the insulation
used
in
the breaker not be exposed to dirt or moisture.
NOTICE
A
c~rcuit
breaker
that
has been stored
for
any
length
of
time
should
be operated a
minimum
of
five
times
before
it
is placed in service.
2-3 LIFTING CIRCUIT BREAKER
To closely examine, install or just to become more famil-
iar with the circuit breaker, carefully lift and place the
breaker, on a.solid work surface capable of handling the
breakers weight (Table 2.1) or on the captive drawout
e~e~sion
rails
~f
the breaker compartment (Figure 1-4).
This
1s
accomplished by using the appropriate lifting
yoke and lifter. The lifting yoke consists of two sheet
steel hooks specially shaped to hook under the top
edges of the large openings on each circuit breaker side
sheet (Figure 2-1).
Table 2. 1 Circuit Breaker
and
Fuse Truck Weights
Type
Pounds
DSll-308 150
DSll-508 195
DSll-608 200
DSll-516 195
DSll-616 200
DSll-620
200
DSll-632
300
DSll-840 400
DSll-850 400
DSLll-308 200
DSLll-516 260
DSLll-620 275
DSll-FT32 Fuse Truck 325
DSll-FT40 Fuse Truck 430
Courtesy of NationalSwitchgear.com
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