42
Risk of insulation damage with use of incorrect
compounds.
May cause equipment dielectric failure.
Use only isopropyl alcohol to clean insulation. Do
not use any cleaning compounds containing
chlorinated hydrocarbons such as trichlorethylene,
perchlorethylene or carbon tetrachloride. These
compounds will damage the material used in the
barriers and other insulation on the circuit breaker.
3. Clean barriers, post insulators and roof
bushings using clean cloth and isopropyl
alcohol.
4. Reinstall all barriers. Check all visible
fasteners again for condition and
tightness.
Functional tests
Refer to the installation checklist in the
installation checks and initial functional tests
section of this instruction manual. Functional
tests consist of performing at least three
manual spring charging checks and three
automatic spring charging checks. After these
tests are complete, and the springs fully
discharged, all fasteners and connections are
checked again for tightness and condition
before placing the type SDV7 distribution
circuit breaker back in service.
NOTICE
Protective relays and instruments
The type SDV7 distribution circuit breaker can
be equipped with a protective relay panel
when required. A protective relay package can
be supplied on a hinged panel mounted in
the front of the relay and control
compartment.
To ensure satisfactory operation of protective
relays and instruments do not leave device
covers off longer than necessary.
When a cover has been broken, cover the
device temporarily and replace broken cover
as soon as possible.
Refer to the wiring and schematic diagrams,
and other instruction literature shipped with
the circuit breaker for additional specific
protective relay requirements.
Equipment surfaces
Inspect the painted surfaces and touch up
scratches as necessary. ANSI-61 touch up
paint is available from Siemens. This paint
matches the unit and is thinned and ready for
use in one pint (473 ml) spray cans.
Inspect interior of unit for entrance of
moisture and repair as necessary.
Inspect ventilation filters, clean or replace as
appropriate.
Содержание SDV7
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