ABB DB BREAKER Retrofitting Manual page 9

7
MAKING THE SYSTEM SAFE FOR REMOVAL
The following warnings and precautions must be respected
before removing the CiC adapter and circuit breaker from
the switchgear.
•
Place the switchgear housing and the circuit breaker
out of service.
•
Disconnect the power from the switchgear
(power circuit and auxiliary circuits) and verify it is
disconnected from all sources of energy.
•
Double check to ensure that the line has been placed
out of service.
NOTE: The trained personnel in charge of handling and lifting
must use appropriate safety equipment.
Remove the Emax 2 CiC Adapter
WARNING: THE CIRCUIT BREAKER COULD DROP
DURING THIS OPERATION. FASTEN IT TO A
LIFTING TRUCK BEFORE PROCEEDING.
Ÿ Remove the Emax 2 circuit breaker, refer to the
Emax 2 manual 1SDH001000R0002.
Ÿ Unscrew the racking lock pins on
each side of the CiC adapter until they are clear
of the racking pins as shown in (fig. 9).
Ÿ Use DB rack out tool to disengage CiC
adapter with stabs as shown in (fig. 10).
Ÿ Note: The CiC should rack-out smoothly without
mechanical interference. If any unusual
resistance is detected, stop immediately and
correct the situation before proceeding.
WARNING: THE CiC ADAPTER COULD DROP
DURING THIS OPERATION. FASTEN IT TO A
LIFTING TRUCK BEFORE PROCEEDING.
Ÿ Place the extended rails and lock them
with switchgear rails as shown in (fig. 11).
Ÿ Pull out the CiC adapter from switchgear cell
until they it is on extended rails as shown in (fig. 12).
Ÿ Lift the CiC adapter from the rails using the
designated lifting points with equipment that has
ratings which exceed the values listed in Table B
on page 1.
Fig. 9
2
Fig. 10
Fig. 11
Fig. 12
1