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10
O W I I I – I N D O O R D I S C O N N E C TO R
3.5
—
Fig. 2.
Type
OWIII 7,2/6–1
OWIII 7,2/6–2
OWIII 10/6, 8, 10–1
OWIII 10/6, 8, 10–2
OWIII 10/6–2/125
OWIII 10/12–1
OWIII 17,5/6–1
OWIII 17,5/12–1
OWIII 20/6, 8, 10–1
OWIII 20/6, 8, 10–2
OWIII 20/6–2/160
OWIII 20/12–1
OWIII 30/6–2
OWIII 30/12–2
OWIII 30/16–2
4
4.1
Before installing the disconnector in switchgear
below points should be checked:
a) rating plate content and its correspondence
with the contents of the contract
b) insulators condition
c) protective coverings condition
d) condition of the grease on the contacts and the
bearing isolator
4.2 Supporting structure
The supporting structure for disconnector should
be rigid, and the supports points must lie in one
—
Fig. 2.
plane. Disconnector should be mounted with
Mounting dimensions
M12 screws on 4 holes. Mounting holes pattern is
of OWIII disconnector,
insulation brake between
shown in drawing in previous section [Fig. 2].
open contacts.
Mounting dimensions of OWIII disconnector
C
Dimensions
A
B
260
258
260
263
260
258
260
263
260
263
295
260
360
353
395
355
360
353
360
360
360
360
395
355
510
456
525
460
525
460
Installing
Inspection before installing
C
D
480
150
480
135
560
150
560
135
410
135
560
150
580
220
640
220
710
250
710
245
480
245
710
250
920
360
990
360
990
360
4.3 Installation of insulating barrier
Disconnectors type OWIII 10/6-2/125 and OWIII
20/6-2/160 are equipped with insulating barriers
that must be mounted to the base of disconnector
before mounting the device on support structure.
After mounting barriers using holes in base, they
must be connected with delivered spacer rods.
During the insulating barrier assembly special
attention should be drawn to:
a) insulating barriers surface – lack of defects and
cracks
b) positioning – the longer edge of insulating
barrier closer to earthing switch shaft
B
Connections:
30
6
∅16,5
630, 800, 1000 A
50
2 holes ∅14
1250, 1600 A
6
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