Siemens SDV7-AR, Instruction Manual

Page: 10 / 56

10
Lifting and moving
There are a number of methods that can be
used in handling the type SDV7-AR
distribution circuit breaker that, when
properly employed, will not damage the
type SDV7-AR distribution circuit breaker.
The handling method used will be
determined by conditions and available
equipment at the installation site. Lifting
with a crane by the use of a sling and lifting
lugs is the preferred method of handling;
however, overhead obstructions often
dictate that other methods must be used.
Forklift trucks may be used prior to removal
of wooden skids. Verify the forklift blades
pass completely through the wooden skid
under the circuit breaker.
Each type SDV7-AR distribution circuit
breaker has provisions for attaching lifting
cables. Lifting lugs are provided on two
sides of the circuit breaker, which are
designed for use with a lift sling or hooks of
the proper size and a crane of adequate
height and capacity. Refer to the type
SDV7-AR distribution circuit breaker
nameplate for the weight.
Lifting type SDV7-AR distribution circuit
breaker with crane
Recommended lifting of type SDV7-AR
distribution circuit breakers is by means of
cables connected to an overhead crane. The
cables are connected to the lifting lugs on
the top of the type SDV7-AR distribution
circuit breaker as illustrated in Figure 2:
Lifting type SDV7-AR distribution circuit
breaker with crane. A crane with sufficient
height should be used so the load angle on
the lifting cable will be approximately 60°
when viewed from the front or rear.
Storage
When it is necessary to store a type SDV7-AR
distribution circuit breaker in an area
exposed to the weather or under humid
conditions, energize the space heaters
provided and make certain that any vents
are uncovered to allow air to circulate. If at
all possible, install the type SDV7-AR
distribution circuit breaker at the permanent
location even though it may be some time
before the equipment is used. It is also
recommended that the type SDV7-AR
distribution circuit breaker receive periodic
inspection during storage.
Access to the heater circuit is gained by
opening the door to the relay and control
compartment. Refer to the wiring diagram
drawing for space heater circuit
connections. Lubricate hinges and other
moving parts.
Heavy weight.
Can result in death, serious injury or property damage.
Observe all handling instructions in this instruction manual to prevent
tipping or dropping of equipment.
Figure 2: Lifting type SDV7-AR
distribution circuit breaker with
crane
~60°
A
Value A
dimensions in inches (mm)
15.5 kV,
1,200 A-
2,000 A
15.5 kV
3,000 A
and
27.6 kV
1,200 A-
2,000 A
38.0 kV,
1,200 A-
2,500 A
41
(1,040)
48
(1,220)
61
(1,550)