Removal from Cell in Outdoor Non-Walk-In Enclosures, or
for Indoor Switchgear Installed on a Raised Pad
Removal of the breaker from a non-walk-in outdoor switchgear
assembly is similar to removal of a breaker at floor level, with
several additional steps.
Figure 39
shows one of the two breaker extension rails being
inserted into the fixed rails within the breaker cell. The rails
engage locking pins in the fixed rails to secure them in position.
Figure 39.
Use of Extension Rails for Removal of Circuit
Breaker from Upper Compartment
Figure 40.
Lift Truck Engaged
Figure 41.
Lift Truck with Circuit Breaker
The procedure for removal of a circuit breaker not located at
floor level is:
1.
Insert the two extension rails into the fixed rails. Be sure
the extension rails are properly secured in place. (This can
be done at Step 4 if preferred.)
2.
Insert the racking crank on the racking screw on the front
of the breaker cell, and push in (see “Racking Crank
Engagement Procedure”). This action operates the racking
interlock latch.
3.
Rotate the racking crank
counterclockwise
until the
breaker is in the DISCONNECT position.
4.
If you have not yet installed the extension rails, do so now.
Note that some difficulty may be experienced installing the
extension rails if the circuit breaker is in the DISCONNECT
position. If difficulty is encountered, rack the circuit breaker
to the TEST position, install the extension rails, and then
rack the circuit breaker to the DISCONNECT position.
Circuit Breaker Position
40
1569-95
1572-95
1568-95
