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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.
Closing drive
Secure tube
Locking rod
Fig. 2 Securing closing drive against opening
4
2. General usage conditions
2.1 Transportation
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•
•
•
•
Design and specifications are subject to change without notice
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).
a
Fig. 3 Handling the breaker and setting of the OCT unit
b
SW 6
S47183-e 01/2008
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