Citadel 2.0 - Instruction Manual - page:
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Interlocks
Interlocks are at the very heart of the Citadel’s ruggedness and safety practices.
Interlocks are designed to work SMOOTHLY and in layers.
The layering of one interlock on top of another is designed to increase the level of safety
for operating personnel.
Every interlock is designed to “JUST WORK”.
If ANYTHING does not work or does not appear to work SMOOTHLY
Locate an experienced colleague or contact the factory ONLY.
NEVER FORCE ANYTHING !
The following section will describe the intent and operation of the various Citadel
Interlocks. The order of this explanation will, for the most part, attempt to follow a breaker
from being out on the floor through full insertion and operation. Stand-alone interlocks
may be discussed at any time during this operational flow.
Padlocks
The Citadel switchgear cell has two hasps on the front door to allow for padlocking and
LOTO locking with a customer provide multi-lock hasp device.
•
One padlock hasp (optionally activated) is on the door handle.
•
One padlock hasp (optionally activated) is on the door’s racking port opening.
•
Front Door Interlock
Some Customers have operating procedures that insist a breaker be turned off AND
racked out – prior to the switchgear’s front door being allowed to be opened.
The Citadel front door has an interlock supplied as standard – BUT DE-ACTIVATED. This
interlock is mounted on the inside of the upper right side of the front door looking from
the outside of a closed door. On the inside of the switchgear door is a bracket hanging
vertically that when mounted horizontally with the two mounting screws provided will
allow the racking indication arm to insert when the breaker is racked in and prevent the
switchgear door from being opened when the breaker is racked in. As stated, this bracket
is provided with only one mounting screw inserted and is hanging vertically. It is Non-
operational in this vertical position.
S W I T C H G E A R C U B I C L E & D R A W - O U T F E A T U R E S
STOP!!!
DO NOT FORCE ANY ACTIVITY ON A CITADEL