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EN
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ABB Switzerland Ltd
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PROPRIETARY AND SECRET INFORMATION The information contained in this document has to be kept stric
tly confidential.
Any unauthorized use, reproduction, distribution or disclosure
to third parties
is strictly forbidden. ABB reserves all rights regarding Intell
ectual Property Rights.
Thread Quality Tolerance
"6g-6H" ISO 965
ISO 2768 T.1 Lengths and Angle
ISO 2768 T.2 Geometrical Tolerances
Surface
Surface code
Coord. punching N.C.Mach.
and unfold JS11
Standard Tolerances for Machining and Forming
© Copyright
ABB. All rights reserved.
2016
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Group Technology Management
PL-PSY
M. Mańkowski
PLABB
Opening side
Pivot side
Closed position
Open position
Open position
Closed position
Earthing switch
Switch disconnector
per manufacturer instructions. Reduction of
space and installation requirements has
already influenced the design of kiosks and
stations however the proper maintenance is
still required.
•
In case it would not be possible to avoid
condensation inside the compartment, the
prefabricated substation must be treated as
class 1 or class 2 as per IEC 62271-304 and all
the products installed inside shall be
upgraded accordingly.
•
Regardless of the type of switch-
disconnector, all installation work, station
design, location selection, ground
preparation, and maintenance must be done
in a professional way to keep the installation
in good condition throughout it's assumed
lifetime.
•
Final product performance needs to be
tested in final application.
determine the position of the main contacts
which is a big advantage.
9. ABB recommends to verify the position of
the main knives before and after each
operation. ABB recommends to install air-
insulated switch-disconnectors in
applications where it is possible to visually
check main knives position eg. through an
inspection window.
10. Please place attached sticker with drawing
close to inspection window. Before any
operation please check switch position.
1.2 Application highlights
Important factors that influence life time of
prefabricated substation:
•
Placement of substations and proximity to
harsh environments (polluted areas and
roads, road salt, farming land and fertilizing
areas, coast areas, salty water, cable ditch
and penetration of ground water and surface
water, removing of snow etc).
•
Materials of the substation and possibility of
condensation forming from quick
temperature variations.
•
Draining of the ground around the substation
and preparation of the foundation including
backfilling of cable trench.
•
Elimination of pollution and humidity.
•
Placement of kiosks in terrains.
•
Elimination of potential sources of corona in
design and installation: cable terminations,
busbars, sharp edges…
•
Heating, better utilization of the heating
from the transformer and ventilation.
Whenever the utilization of heating from
installed distribution transformer is not
sufficient to avoid water dropping
condensation, it is recommended to use
other solutions like heaters, humidity
absorbers, thermal insulation of walls etc. to
keep working environment according to
installed apparatus and equipment class.
•
Respect of maintenance plan, to be done as
