4
Design and specifications are subject to change without notice
S47183-e 01/2008
1.2 Safety hints
1.2.1 Securing against falling parts
Hint 1: Place a cloth into the lower area of the pre-arcing
contact [Fig. 1]. Remember to secure the closing drive
according to Hint 3.
Fig.1 Protecting of the arcing area aginst falling parts
1.2.2 Maintenance with zero voltage release
Hint 2: In case, when the zero voltage release is installed
in, it shall be energized to enable closing of the breaker.
Only then maintenance of the pre-arcing contacts is
possible.
Hint 3: To prevent the risk of injury, it is recommended to
secure the close position of the breaker with a mechani-
cal interlock device [Fig. 2]. The tube shall have ~50mm
[~2in] length and inner diameter of minimum 14mm
[0,55in]. The outer diameter of the locking rod shall be
less 8mm [0,3in]. GE does not offer this locking device.
Fig. 2 Securing closing drive against opening
2. General usage conditions
2.1 Transportation
•
The breaker is transported on wooden palette. It is fixed
by shrunken plastic film. A paper cardboard box covers
the breaker on the palette. Truck, railway, airplane and
ship transport is possible. In case of sea transport, spe-
cial protection against salty and humid environment is
used.
•
The circuit breaker must always be transported to the
installation site vertically and fully packed. The packag-
ing protects the device against damage and dust; it
should only be removed prior to installation.
•
If the packaging is damaged, the breaker and the arc
chute must be inspected for damage. Ensure that all
packaging materials have been carefully removed prior
to breaker installation.
•
For handling the unpacked breaker [Fig. 3], use a trans-
portation belts and reach them below the closing drive
(a)
and below the
lower
terminal
(b)
.
•
Listen, that the basement isolation of the unpacked
breaker during handling will not be damaged (for exam-
ple don’t push the breaker back and forth at rough sur-
face).
Fig. 3 Handling the breaker and setting of the OCT unit
Closing drive
Secure tube
Locking rod
SW 6
a
b
